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EP2641010A2 - Vessel with associated collar - Google Patents

Vessel with associated collar

Info

Publication number
EP2641010A2
EP2641010A2 EP11782668.5A EP11782668A EP2641010A2 EP 2641010 A2 EP2641010 A2 EP 2641010A2 EP 11782668 A EP11782668 A EP 11782668A EP 2641010 A2 EP2641010 A2 EP 2641010A2
Authority
EP
European Patent Office
Prior art keywords
collar
container
vessel according
neck
vessel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11782668.5A
Other languages
German (de)
French (fr)
Inventor
Roger Carr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2641010A2 publication Critical patent/EP2641010A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C13/00—Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/62—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container
    • A62C13/64—Portable extinguishers which are permanently pressurised or pressurised immediately before use with a single permanently pressurised container the extinguishing material being released by means of a valve
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/04—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
    • B67D1/0456—Siphons, i.e. beverage containers under gas pressure without supply of further pressurised gas during dispensing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0607—Coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/066—Plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0305—Bosses, e.g. boss collars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0338—Pressure regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/21—Shaping processes
    • F17C2209/2109—Moulding
    • F17C2209/2127—Moulding by blowing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/035—Propane butane, e.g. LPG, GPL
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0754—Fire extinguishers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/07—Applications for household use
    • F17C2270/0763—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Definitions

  • This invention relates to a vessel comprising a plastics container for holding liquid and/or gaseous substances, if desired under pressure, and a collar associated with the plastics container to which a release mechanism can be attached for dispensing the liquid and gaseous substances.
  • the vessel is associated with a metal discharge or release mechanism which seals the container and provides a controlled release of the vessel contents which can be in the form of liquid, powder and/or gas. Controlled release is particularly important where the substances are kept under pressure or are pressurised as they are discharged. However, it is difficult to connect the metal release mechanism to the plastics container in a secure manner.
  • a vessel comprising a plastics container with an upstanding neck around which is located a collar, to which is typically attached a release mechanism for dispensing substances such as liquids, powders and/or gases from the container, wherein an internal surface of the collar is formed with a securing means for engaging and securing a release mechanism and the internal surface further comprises at least one uni-directional engagement member, such as a barbed element, which engages with the container to prevent removal of the collar.
  • the collar is permanently fixed and locked in place relative to the container and provides a unitary fixing permanently secured to the container which is capable of securing a release mechanism, such that both the release mechanism and container are secured in a fixed relationship to each other by both engaging with a single unitary fixing.
  • the securing means may be provided by a threaded portion, with typically the collar having an upstanding neck portion with an internally threaded section for receiving the release mechanism.
  • the at least one one uni-directional engagement member is located on an internal face of the collar so as to engage with the neck of the container.
  • a plurality of uni-directional engagement members may be provided, preferably circumferentially spaced around the internal face of the collar.
  • the plastics container will have a thickness in the range 2-5mm, and more preferably 2.5 -4mm, with the neck of the plastics container having an external thread and where this is so, preferably the collar further comprises a co-operating internal thread for the container to secure to.
  • the co-operating screw threads of the container and the collar allow the collar to be screwed in one direction onto the neck, with the at least one uni-directional engagement member or plurality of unidirectional engagement members resisting removal and preventing the collar being screwed off in the opposite sense, the uni-directional engagement member(s) digging into the neck to prevent the collar being unscrewed.
  • the uni-directional engagement member is a barbed element.
  • the collar may have a flange extending from its base with a shoulder of the container having a complementary shaped seat into which the flange locates. During positioning of the collar on the container, it is easy to tell once the collar is properly secured as at that point the flange will sit securely in the seat.
  • the collar is made from metal made from one piece by moulding or machining and is of preference made from brass or other easily workable metal.
  • the neck portion comprises a central internal threaded channel stepped in diameter, with a lower portion of greater diameter than an upper portion and so forming an internal lip.
  • the container is received and secured to the greater diameter lower threaded portion and abuts against the lip, with the dispensing mechanism fixable to the upper threaded portion.
  • an integral sealing means may be incorporated into the collar for sealing the container to the collar.
  • the neck portion may incorporate a grooved annulus, typically seated within the lip formed as the internal diameter changes, receiving an integral seal such as an o-ring, which ensures that a rim of the container is sealed to the collar and that no leakage can occur from the co-operating threads of the container and the lower threaded section.
  • Such vessels may be pressure vessels capable of containing pressurised substances at greater or less than ambient pressure, examples of which include fire-extinguishers, hot water cylinders, air brake accumulators and gas containers for example containing butane, propane, oxygen and/or hydrogen.
  • Figure 1 is a sectional view of a vessel in accordance with the present invention, the vessel comprising a plastics container and a collar;
  • Figure 2 is a perspective view of the collar positioned on the container
  • Figure 3 is a view from one side of the collar, the other side corresponding;
  • Figure 4 is a section on line IV-IV.
  • Figure 5 is an underside view of the collar
  • a vessel 10 in accordance with the present invention is shown in Figure 1.
  • the vessel 10 comprises an inner plastics container 12 typically of thickness around 3mm and made by blow-moulding within which are substances such as liquids, powders and/or gases.
  • a metal collar 14 is screwed on to an externally threaded neck 13 of the container 12 and attached to the collar 14 is a release mechanism 16 for dispensing the contents of the container and which if desired has a pressure gauge 17.
  • a fibre wrap 18 surrounds the container 12 and if required is in turn encompassed by a protective sleeve or coating 20.
  • the release mechanism is shown by way of example, there being a number of different types of release mechanism available depending on the substance held in the vessel.
  • the container 12 can hold non-pressurised substances, pressurised substances in the range greater than 0 to 900 bar or substances that are pressurised before or upon discharge.
  • the container can be used for fire extinguishers with pressures around 6 bar, or to contain butane, propane, oxygen and/or hydrogen, for example in a hydrogen cell.
  • Problems are encountered in the prior art where the plastics container has to be secured to a metal release mechanism to comply with relevant safety standards.
  • the plastics container and the metal release mechanism are interconnected by way of a serrated plug which is forced into an opening of the container using a hydraulic ram.
  • the metal dispensing device secures to the plug and is merely held in position by the force used to push the plug in. Leaks occur where the plug and container meet and there is a risk that the plug might simply be forced out of the container should the container internal pressure increase too much, for example due to heat.
  • the collar arrangement of the present invention solves this problem as it is secured to the container in such a way that the collar is permanently locked in a fixed relationship to the container and provides a secure connection for the metal release mechanism to engage with.
  • the collar will not become detached from the container even at the greatest pressures, rather the container itself would rupture and does not allow contents to leak from the container when used with a release or dispensing mechanism.
  • the present invention is particularly suitable for substances that need to go down to very low temperatures, such as -60°C, or be contained at very high pressures, for example 300 bar for a hydrogen cell.
  • the brass collar 14 is shown positioned on container 12 in Figures 1 and 2 and detailed views of the collar on its own are shown in Figures 3, 4 and 5.
  • the collar 14 comprises an upstanding neck portion 26 and a flange 28, the flange angled so as to conform to the angle of a lipped seat 24 formed in the shoulder of the container 12, see Figure 1.
  • the neck portion 26 is internally threaded with a central channel 29 of stepped diameter providing two threaded sections 30, 32 having different cross- sections and different thread pitches, the upper threaded portion 30 being of a suitable pitch to receive a metal release mechanism 16, and the lower threaded portion 32 being of a suitable pitch to receive a co-operatingly threaded plastics thread.
  • a locking mechanism 34 is provided at the lowermost part of the internal face of the neck portion 26, the locking mechanism 34 comprising a plurality of circumferentially equi-spaced barbs 36 being substantially triangular in shape.
  • a circumferential recess or seating 38 is formed at lip 39 where the channel 29 changes diameter with a resilient o-ring 40, typically made of rubber, sitting within the seating 38.
  • the ring is placed over neck 13 of the container, and the lower threaded portion 32 threaded to the co-operating external thread of the container neck 13.
  • the mating threads engage as the locking ring 14 is turned in one direction, typically clockwise, with the collar screwed down until the flange 28 sits firmly within seat 24 and the rim of neck 13 is pushed tightly against o- ring 40.
  • the o-ring 40 acts as an interface between the rim of the container 12 and the surrounding collar 14 and provides a seal between the metal of the collar and the plastics material, sealing the container 12 to the collar 14.
  • the barbs 36 are angled such that they ride over the neck 13 of the bottle and do not engage, so not interfering with the screwing motion.
  • the barbs 36 are unidirectional such that if one attempts to turn the locking ring 14 in the opposite direction, typically counter-clockwise, the upstanding edge of the barb 36 bites into the plastics neck 13 and prevents the collar 14 being twisted in an upwards direction. In this way one can screw the collar onto the neck 13, the collar 14 twisting downwardly freely until is engaged with the seat 24, but if attempting to reverse the direction of travel, the barbs 36 engage with the neck portion 13 and prevent upwards movement.
  • the locking collar 14 thus secures to the plastics container in a manner which is permanently locked in place due to the engagement of the barbs.
  • the container 12 may be encased in any manner deemed appropriate, for example with a fibre wrap 18 and a protective cover 20.
  • the container is filled with appropriate contents and the discharge mechanism 16 screwed into the upper threaded portion 13.
  • a metal collar is permanently attached to the plastics container, providing a single fitting capable of receiving and securing both the plastics container and a metal dispensing mechanism without any intermediary connections being required.
  • Using the integral o-ring 40 ensures no leaks can occur from the plastics container with discharge only possible through the discharge mechanism 16.
  • the collar provides a way of securing both the container and the dispensing mechanism using a single unitary fixing, simplifying connection, removing the possibility of leaks, and providing enhanced safety.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Closures For Containers (AREA)

Abstract

There is provided a vessel (10) comprising a plastics container (12) with an upstanding neck (13) around which is located a collar (14), to which is attached a release mechanism (16) for dispensing substances from the container. The collar (14) comprises a plurality of spaced barbs (32) which engage with a neck (13) of the container to prevent removal of the collar (14) through barbs engaging the neck at a number of positions. The collar (14) has two threaded portions (30, 32) respectively engaging with the release mechanism (16) and the neck (13), and an o-ring (40) sealing the plastics container (12) to the metal collar (14).

Description

Title: Vessel with associated Collar
Field of the invention
This invention relates to a vessel comprising a plastics container for holding liquid and/or gaseous substances, if desired under pressure, and a collar associated with the plastics container to which a release mechanism can be attached for dispensing the liquid and gaseous substances.
Background to the invention
Certain substances need to be kept within a sealed environment prior to use and vessels comprising a plastics container are of particular benefit in retaining such substances as the plastics material is not subject to corrosion. The vessel is associated with a metal discharge or release mechanism which seals the container and provides a controlled release of the vessel contents which can be in the form of liquid, powder and/or gas. Controlled release is particularly important where the substances are kept under pressure or are pressurised as they are discharged. However, it is difficult to connect the metal release mechanism to the plastics container in a secure manner.
Summary of Invention
In accordance with the present invention, there is provided a vessel comprising a plastics container with an upstanding neck around which is located a collar, to which is typically attached a release mechanism for dispensing substances such as liquids, powders and/or gases from the container, wherein an internal surface of the collar is formed with a securing means for engaging and securing a release mechanism and the internal surface further comprises at least one uni-directional engagement member, such as a barbed element, which engages with the container to prevent removal of the collar. The collar is permanently fixed and locked in place relative to the container and provides a unitary fixing permanently secured to the container which is capable of securing a release mechanism, such that both the release mechanism and container are secured in a fixed relationship to each other by both engaging with a single unitary fixing. The securing means may be provided by a threaded portion, with typically the collar having an upstanding neck portion with an internally threaded section for receiving the release mechanism.
Preferably the at least one one uni-directional engagement member is located on an internal face of the collar so as to engage with the neck of the container. A plurality of uni-directional engagement members may be provided, preferably circumferentially spaced around the internal face of the collar. Thus if removal of the collar is attempted, the collar resists removal through the uni-directional engagement members engaging the upstanding neck at a number of positions.
Typically the plastics container will have a thickness in the range 2-5mm, and more preferably 2.5 -4mm, with the neck of the plastics container having an external thread and where this is so, preferably the collar further comprises a co-operating internal thread for the container to secure to. In such embodiments, the co-operating screw threads of the container and the collar allow the collar to be screwed in one direction onto the neck, with the at least one uni-directional engagement member or plurality of unidirectional engagement members resisting removal and preventing the collar being screwed off in the opposite sense, the uni-directional engagement member(s) digging into the neck to prevent the collar being unscrewed.
Preferably the uni-directional engagement member is a barbed element.
The collar may have a flange extending from its base with a shoulder of the container having a complementary shaped seat into which the flange locates. During positioning of the collar on the container, it is easy to tell once the collar is properly secured as at that point the flange will sit securely in the seat.
Desirably the collar is made from metal made from one piece by moulding or machining and is of preference made from brass or other easily workable metal.
Where the collar is formed with an upstanding neck portion, preferably the neck portion comprises a central internal threaded channel stepped in diameter, with a lower portion of greater diameter than an upper portion and so forming an internal lip. In this way, the container is received and secured to the greater diameter lower threaded portion and abuts against the lip, with the dispensing mechanism fixable to the upper threaded portion.
An integral sealing means may be incorporated into the collar for sealing the container to the collar. Thus the neck portion may incorporate a grooved annulus, typically seated within the lip formed as the internal diameter changes, receiving an integral seal such as an o-ring, which ensures that a rim of the container is sealed to the collar and that no leakage can occur from the co-operating threads of the container and the lower threaded section.
Such vessels may be pressure vessels capable of containing pressurised substances at greater or less than ambient pressure, examples of which include fire-extinguishers, hot water cylinders, air brake accumulators and gas containers for example containing butane, propane, oxygen and/or hydrogen.
The invention will now be described, by way of example and with reference to the accompanying drawings in which:
Figure 1 is a sectional view of a vessel in accordance with the present invention, the vessel comprising a plastics container and a collar;
Figure 2 is a perspective view of the collar positioned on the container;
Figure 3 is a view from one side of the collar, the other side corresponding;
Figure 4 is a section on line IV-IV; and
Figure 5 is an underside view of the collar
Description
A vessel 10 in accordance with the present invention is shown in Figure 1. The vessel 10 comprises an inner plastics container 12 typically of thickness around 3mm and made by blow-moulding within which are substances such as liquids, powders and/or gases. A metal collar 14 is screwed on to an externally threaded neck 13 of the container 12 and attached to the collar 14 is a release mechanism 16 for dispensing the contents of the container and which if desired has a pressure gauge 17. A fibre wrap 18 surrounds the container 12 and if required is in turn encompassed by a protective sleeve or coating 20. As will be understood by those in the art, the release mechanism is shown by way of example, there being a number of different types of release mechanism available depending on the substance held in the vessel.
The container 12 can hold non-pressurised substances, pressurised substances in the range greater than 0 to 900 bar or substances that are pressurised before or upon discharge. Thus by way of example, the container can be used for fire extinguishers with pressures around 6 bar, or to contain butane, propane, oxygen and/or hydrogen, for example in a hydrogen cell. Problems are encountered in the prior art where the plastics container has to be secured to a metal release mechanism to comply with relevant safety standards. Sometimes the plastics container and the metal release mechanism are interconnected by way of a serrated plug which is forced into an opening of the container using a hydraulic ram. The metal dispensing device secures to the plug and is merely held in position by the force used to push the plug in. Leaks occur where the plug and container meet and there is a risk that the plug might simply be forced out of the container should the container internal pressure increase too much, for example due to heat.
The collar arrangement of the present invention solves this problem as it is secured to the container in such a way that the collar is permanently locked in a fixed relationship to the container and provides a secure connection for the metal release mechanism to engage with. The collar will not become detached from the container even at the greatest pressures, rather the container itself would rupture and does not allow contents to leak from the container when used with a release or dispensing mechanism.
The present invention is particularly suitable for substances that need to go down to very low temperatures, such as -60°C, or be contained at very high pressures, for example 300 bar for a hydrogen cell. The brass collar 14 is shown positioned on container 12 in Figures 1 and 2 and detailed views of the collar on its own are shown in Figures 3, 4 and 5. The collar 14 comprises an upstanding neck portion 26 and a flange 28, the flange angled so as to conform to the angle of a lipped seat 24 formed in the shoulder of the container 12, see Figure 1. The neck portion 26 is internally threaded with a central channel 29 of stepped diameter providing two threaded sections 30, 32 having different cross- sections and different thread pitches, the upper threaded portion 30 being of a suitable pitch to receive a metal release mechanism 16, and the lower threaded portion 32 being of a suitable pitch to receive a co-operatingly threaded plastics thread. A locking mechanism 34 is provided at the lowermost part of the internal face of the neck portion 26, the locking mechanism 34 comprising a plurality of circumferentially equi-spaced barbs 36 being substantially triangular in shape. A circumferential recess or seating 38 is formed at lip 39 where the channel 29 changes diameter with a resilient o-ring 40, typically made of rubber, sitting within the seating 38.
To position the locking collar 14 on container 12, the ring is placed over neck 13 of the container, and the lower threaded portion 32 threaded to the co-operating external thread of the container neck 13. The mating threads engage as the locking ring 14 is turned in one direction, typically clockwise, with the collar screwed down until the flange 28 sits firmly within seat 24 and the rim of neck 13 is pushed tightly against o- ring 40. The o-ring 40 acts as an interface between the rim of the container 12 and the surrounding collar 14 and provides a seal between the metal of the collar and the plastics material, sealing the container 12 to the collar 14.
As the locking ring 14 is turned in one direction to screw down onto the container neck 13, the barbs 36 are angled such that they ride over the neck 13 of the bottle and do not engage, so not interfering with the screwing motion. However the barbs 36 are unidirectional such that if one attempts to turn the locking ring 14 in the opposite direction, typically counter-clockwise, the upstanding edge of the barb 36 bites into the plastics neck 13 and prevents the collar 14 being twisted in an upwards direction. In this way one can screw the collar onto the neck 13, the collar 14 twisting downwardly freely until is engaged with the seat 24, but if attempting to reverse the direction of travel, the barbs 36 engage with the neck portion 13 and prevent upwards movement. The locking collar 14 thus secures to the plastics container in a manner which is permanently locked in place due to the engagement of the barbs.
After the brass collar 14 is screwed onto the container 12 and the o-ring 40 firmly pushed against the rim of neck 13, the container 12 may be encased in any manner deemed appropriate, for example with a fibre wrap 18 and a protective cover 20. The container is filled with appropriate contents and the discharge mechanism 16 screwed into the upper threaded portion 13.
Thus a metal collar is permanently attached to the plastics container, providing a single fitting capable of receiving and securing both the plastics container and a metal dispensing mechanism without any intermediary connections being required. Using the integral o-ring 40 ensures no leaks can occur from the plastics container with discharge only possible through the discharge mechanism 16. The collar provides a way of securing both the container and the dispensing mechanism using a single unitary fixing, simplifying connection, removing the possibility of leaks, and providing enhanced safety.

Claims

Claims
1. A vessel comprising a plastics container with an upstanding neck around which is located a collar, wherein an internal surface of the collar is formed with a securing means for engaging and securing a release mechanism and the internal surface comprises at least one unidirectional engagement member which engages with the container to prevent removal of the collar.
2. A vessel according to claim 1, wherein the securing means is provided by a threaded portion.
3. A vessel according to claim 1 or claim 2, wherein the at least one one uni-directional engagement member is located on an internal face of the collar so as to engage with the neck of the container.
4. A vessel according to any of the preceding claims, wherein a plurality of uni-directional engagement members are provided.
5. A vessel according to any of the preceding claims, wherein the plastics container has a thickness in the range 2-5mm.
6. A vessel according to any of the preceding claims, wherein the collar further comprises a co-operating internal thread for the container to secure to.
7. A vessel according to any of the preceding claims, wherein the uni-directional engagement member is a barbed element.
8. A vessel according to any of the preceding claims, wherein the collar has a flange extending from its base with a shoulder of the container having a complementary shaped seat into which the flange locates.
9. A vessel according to any of the preceding claims, wherein the collar is made from metal.
10. A vessel according to any of the preceding claims, wherein the collar is formed with an upstanding neck portion comprising a central internal threaded channel stepped in diameter, with a lower portion of the channel of greater diameter than an upper portion of the channel.
11. A vessel according to any of the preceding claims, wherein the collar further comprises an integral sealing means for sealing the container to the collar.
12. A vessel according to claim 11, wherein the sealing means is seated within a grooved annulus formed internally within the collar.
EP11782668.5A 2010-11-15 2011-11-09 Vessel with associated collar Withdrawn EP2641010A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1019235.9A GB2485533B (en) 2010-11-15 2010-11-15 Vessel with associated collar
PCT/GB2011/052179 WO2012066307A2 (en) 2010-11-15 2011-11-09 Vessel with associated collar

Publications (1)

Publication Number Publication Date
EP2641010A2 true EP2641010A2 (en) 2013-09-25

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EP11782668.5A Withdrawn EP2641010A2 (en) 2010-11-15 2011-11-09 Vessel with associated collar

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EP (1) EP2641010A2 (en)
GB (1) GB2485533B (en)
WO (1) WO2012066307A2 (en)

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KR20150099602A (en) * 2012-12-24 2015-08-31 페타팍 아이피 리미티드 Mounting cup and collar assembly for plastics aerosol container
EA201650116A1 (en) * 2016-09-15 2018-03-30 Общество с ограниченной ответственностью "Русские цилиндры" KNOT AND METHOD OF CONNECTING CAPACITY WITH OBJECT
CN109027676B (en) * 2018-08-06 2021-07-27 亚普汽车部件股份有限公司 Sealing structure for high-pressure composite container

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Also Published As

Publication number Publication date
GB2485533A (en) 2012-05-23
GB201019235D0 (en) 2010-12-29
GB2485533B (en) 2014-02-12
WO2012066307A3 (en) 2012-07-12
WO2012066307A2 (en) 2012-05-24

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