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ES251577U - Conjunto de tapa para un recipiente - Google Patents

Conjunto de tapa para un recipiente

Info

Publication number
ES251577U
ES251577U ES1980251577U ES251577U ES251577U ES 251577 U ES251577 U ES 251577U ES 1980251577 U ES1980251577 U ES 1980251577U ES 251577 U ES251577 U ES 251577U ES 251577 U ES251577 U ES 251577U
Authority
ES
Spain
Prior art keywords
closure
container
deformation
containers
glassware
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.)
Granted
Application number
ES1980251577U
Other languages
English (en)
Other versions
ES251577Y (es
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.)
Continental Group Inc
Original Assignee
Continental Group Inc
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 Continental Group Inc filed Critical Continental Group Inc
Publication of ES251577U publication Critical patent/ES251577U/es
Application granted granted Critical
Publication of ES251577Y publication Critical patent/ES251577Y/es
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0235Removable lids or covers with integral tamper element
    • B65D43/0237Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element
    • B65D43/0256Removable lids or covers with integral tamper element secured by snapping over beads or projections before removal of the tamper element only on the outside, or a part turned to the outside, of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/02Removable lids or covers
    • B65D43/0235Removable lids or covers with integral tamper element
    • B65D43/0264Removable lids or covers with integral tamper element secured only by friction or gravity before removal of the tamper element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2401/00Tamper-indicating means
    • B65D2401/15Tearable part of the closure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00064Shape of the outer periphery
    • B65D2543/00074Shape of the outer periphery curved
    • B65D2543/00092Shape of the outer periphery curved circular
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00018Overall construction of the lid
    • B65D2543/00259Materials used
    • B65D2543/00277Metal
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/0049Contact between the container and the lid on the inside or the outside of the container on the inside, or a part turned to the inside of the mouth of the container
    • B65D2543/00527NO contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00481Contact between the container and the lid on the inside or the outside of the container
    • B65D2543/00537Contact between the container and the lid on the inside or the outside of the container on the outside, or a part turned to the outside of the mouth of the container
    • B65D2543/00546NO contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00611Profiles
    • B65D2543/00629Massive bead
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00601Snapping means on the container
    • B65D2543/00675Periphery concerned
    • B65D2543/00685Totality
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00722Profiles
    • B65D2543/00768U-shaped or inverted U
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00444Contact between the container and the lid
    • B65D2543/00592Snapping means
    • B65D2543/00712Snapping means on the lid
    • B65D2543/00787Periphery concerned
    • B65D2543/00814Dots
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00824Means for facilitating removing of the closure
    • B65D2543/00925Means for facilitating removing of the closure by applying inwardly directed pressure at two horizontally opposed points
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D2543/00Lids or covers essentially for box-like containers
    • B65D2543/00009Details of lids or covers for rigid or semi-rigid containers
    • B65D2543/00953Sealing means
    • B65D2543/00962Sealing means inserted
    • B65D2543/00972Collars or rings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D81/00Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2007Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under vacuum
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/20Clamps
    • Y10T292/205Ring

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

1.Conjunto de tapa para un recipiente, que comprende un elemento de tapa que incluye un cuerpo de una pieza, cuyo cuerpo tiene una cara extrema completa generalmente plana y una faldilla colgante, y un anillo de estanqueidad dentro del cuerpo para adaptarse a una superficie de estanqueidad del recipiente, caracterizado porque comprende un anillo indicador de manipulación llevado por la faldilla de la tapa y que tiene una parte situada radialmente hacia el interior de la faldilla para evitar normalmente la deflexión radial hacia el interior de la faldilla en magnitud suficiente para efectuar la deformación del anillo de estanqueidad a una configuración sin estanqueidad. 2.Conjunto de tapa, según la reivindicación 1, caracterizado porque el anillo indicador de manipulación comprende una banda continua que tiene por lo menos una línea de debilitamiento para efectuar la ruptura de la banda con el fin de liberar todo el anillo indicador de manipulación para quitarlo. 3.Conjunto de tapa, según lareivindicación 1, caracterizado porque la faldilla termina en un reborde y el anillo indicador de manipulación tiene un casquillo abierto axialmente que recibe el reborde para mantener el conjunto de tapa como unidad para su aplicación. 4.Conjunto de tapa, según la reivindicación 1, caracterizado porque la citada pare del anillo tiene la forma de una pluralidad de orejetas separadas circunferencialmente. 5.Conjunto de tapa, según la reivindicación 1, caracterizado porque el cuerpo se forma de un material flexible resiliente y se configura para abombarse hacia arriba cuando se comprime diametralmente a lo largo de una línea generalmente perpendicular a la línea de compresión diametral. 6.Conjunto de tapa, según la reivindicación 1, caracterizado porque el anillo de estanqueidad tiene una parte colgante adyacente a la faldilla, y la pare colgante tiene nervaduras para fijarse con el acabado externo de un recipiente, para que se pueda utilizar el elemento de tapa como elemento para volver a cerrar el recipiente. 7.Conjunto de tapa, según , la reivindicación 1, caracterizado porque el conjunto de tapa se coloca en un recipiente que tiene un acabado de estanqueidad con el que se acopla el anillo de estanqueidad, y porque se practica el vacío dentro del recipiente, cuyo vacío actúa sobre el elemento de tapa como único medio para mantener el anillo de estanqueidad en acoplamientos hermético con el acabado de estanqueidad. 8.Conjunto de tapa, según la reivindicación 7, caracterizado porque el cuerpo se forma de un material flexible resiliente y se configura para que se abombe hacia arriba cuando se ejerce en el mismo una presión diametral a lo largo de una línea generalmente perpendicular a la línea de presión diametral, siendo el abombamiento hacia arriba de tal naturaleza que se interrumpe la estanqueidad entre el anillo de estanqueidad y la superficie de estanqueidad . 9.Conjunto de tapa, según la reivindicación 1, caracterizado porque el anillo de estanqueidad tiene una parte colgante adyacente a la faldilla y dicha parte colgante del anillo de estanqueidad tiene medios de nervadura para fijarse con el acabado externo del recipiente, con el fin de poder utilizar el elemento de tapa como elemento para volver a tapar el recipiente. 10.Conjunto de tapa, según las reivindicaciones 3 ó 7, caracterizado porque el recipiente tiene una nervadura proyectada radialmente y el anillo indicador de manipulación se fija por debajo de la nervadura del recipiente para retener el elemento de tapa sobre el recipiente. 11.Conjunto de tapa, según cualquiera de las reivindicaciones anteriores, caracterizado porque cuando el anillo indicador de manipulación tiene una faldilla colgante destinada a quedar separada de la pared adyacente de un recipiente, el anillo indicador de manipulación comprende una banda continua que tiene por lo menos una línea de debilitamiento para efectuar la rotura de la banda, cuya banda tiene orejetas proyectadas radialmente hacia el interior para situarse entre un recipiente y una faldilla de la tapa, y medios para fijar las orejetas a la faldilla de la tapa. 12.Conjunto de tapa, según reivindicación 11, caracterizado porque las orejetas tienen la forma de una pluralidad de orejetas radiales situadas separadas circunferencialmente. 13.Conjunto de tapa, según reivindicación 12, caracterizado porque las muescas están formadas en las intersecciones adyacentes a la orejetas, entre las orejetas y el anillo, para recibir en forma interconectada el canto libre de una faldilla de la tapa. 14.Conjunto de tapa para un recipiente.
ES1980251577U 1979-06-21 1980-06-20 Conjunto de tapa para un recipiente Expired ES251577Y (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/050,932 US4228909A (en) 1979-06-21 1979-06-21 Squeeze-off closure with tamper indicating band

Publications (2)

Publication Number Publication Date
ES251577U true ES251577U (es) 1980-11-16
ES251577Y ES251577Y (es) 1981-05-16

Family

ID=21968406

Family Applications (1)

Application Number Title Priority Date Filing Date
ES1980251577U Expired ES251577Y (es) 1979-06-21 1980-06-20 Conjunto de tapa para un recipiente

Country Status (6)

Country Link
US (1) US4228909A (es)
EP (1) EP0021727B1 (es)
JP (1) JPS5641159A (es)
CA (1) CA1141338A (es)
ES (1) ES251577Y (es)
MX (2) MX151341A (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES261067Y (es) * 1981-10-27 1983-08-01 Dispositivo para cierre hermetico de recipientes perfeccio- nado
US4570810A (en) * 1985-03-15 1986-02-18 Sunbeam Plastics Corporation Cap with tamper indicating band
AU656776B2 (en) * 1991-05-21 1995-02-16 Sweetheart Cup Company Inc. Tamper evident container assembly
US5490827A (en) * 1991-05-21 1996-02-13 Sweetheart Cup Company, Inc. Tamper evident container and related apparatus
US5658228A (en) * 1992-04-30 1997-08-19 Sweetheart Cup Company, Inc. Tamper evident container and related apparatus
US20110095027A1 (en) * 2009-04-15 2011-04-28 New Pig Corporation Latching Drum Lid With Integral Exhaust Hood
US20100282706A1 (en) * 2009-05-05 2010-11-11 Gilliam James R Lift lever crown cap system and method
US8480139B2 (en) * 2009-12-16 2013-07-09 New Pig Corporation Drum band assembly
US11097872B2 (en) * 2017-12-29 2021-08-24 Altria Client Services Llc Composite lid of container and method of attaching metal lid to plastic lid to form composite lid of container

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1725101A (en) * 1926-12-31 1929-08-20 Anchor Cap & Closure Corp Hermetically-sealed package
GB311525A (en) * 1928-04-12 1929-05-16 Atlas Ltd An improved tin box
US2510824A (en) * 1947-11-14 1950-06-06 Lafarge Bernard Nicolas Closure device
US2817453A (en) * 1954-10-27 1957-12-24 Anchor Hicking Glass Corp Hermetically sealed package and closure therefor
DE1235759B (de) * 1959-05-12 1967-03-02 Ehrhard Salzmann Verschlussstopfen mit einem Haltering
US3128896A (en) * 1961-02-20 1964-04-14 Robert F Schnier Bottle closure
US3489308A (en) * 1967-12-20 1970-01-13 Armando Podesta Cap closure provided with slip-out skirt packing
US3746199A (en) * 1971-06-14 1973-07-17 Anchor Hocking Corp Closure cap and sealed package
US3690499A (en) * 1971-07-29 1972-09-12 Continental Can Co Composite closure
LU65639A1 (es) * 1972-06-30 1974-01-04
FR2314872A1 (fr) * 1975-06-19 1977-01-14 Massilly Usine Metallurg Capsule mixte pour le bouchage de recipients
JPS5583846A (en) * 1978-12-21 1980-06-24 Olympus Optical Co Ltd Ion activity measuring method dependent upon ion electrode

Also Published As

Publication number Publication date
ES251577Y (es) 1981-05-16
MX151341A (es) 1984-11-12
CA1141338A (en) 1983-02-15
EP0021727B1 (en) 1983-07-13
EP0021727A1 (en) 1981-01-07
MX159581A (es) 1989-07-06
JPH0253305B2 (es) 1990-11-16
US4228909A (en) 1980-10-21
JPS5641159A (en) 1981-04-17

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Legal Events

Date Code Title Description
FD1K Utility model lapsed

Effective date: 19980504