GB2023776B - Backflow prevention apparatus - Google Patents

Backflow prevention apparatus

Info

Publication number: GB2023776B
Authority: GB; United Kingdom
Prior art keywords: backflow prevention; prevention apparatus; backflow; prevention
Prior art date: 1978-06-23
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.): Expired

Application number

GB7921914A

Other versions

GB2023776A (en

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.)

Griswold Controls LLC

Original Assignee

Griswold Controls LLC

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.)

1978-06-23

Filing date

1979-06-22

Publication date

1983-02-16

1979-06-22 Application filed by Griswold Controls LLC filed Critical Griswold Controls LLC

1980-01-03 Publication of GB2023776A publication Critical patent/GB2023776A/en

1983-02-16 Application granted granted Critical

1983-02-16 Publication of GB2023776B publication Critical patent/GB2023776B/en

Status Expired legal-status Critical Current

Classifications

- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
- E03C1/106—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using two or more check valves
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
- E03C1/108—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves having an aerating valve
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring

Landscapes

Engineering & Computer Science (AREA)
Health & Medical Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Hydrology & Water Resources (AREA)
Public Health (AREA)
Water Supply & Treatment (AREA)
General Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Check Valves (AREA)
Safety Valves (AREA)

GB7921914A 1978-06-23 1979-06-22 Backflow prevention apparatus Expired GB2023776B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US91864678A	1978-06-23	1978-06-23

Publications (2)

Publication Number	Publication Date
GB2023776A GB2023776A (en)	1980-01-03
GB2023776B true GB2023776B (en)	1983-02-16

Family

ID=25440726

Family Applications (5)

Application Number	Title	Priority Date	Filing Date
GB8132471A Expired GB2102918B (en)	1978-06-23	1979-06-22	Relief valve
GB8216022A Expired GB2101716B (en)	1978-06-23	1979-06-22	Check valve assembly
GB7921914A Expired GB2023776B (en)	1978-06-23	1979-06-22	Backflow prevention apparatus
GB8132470A Expired GB2108241B (en)	1978-06-23	1981-10-28	Check valve
GB8216023A Expired GB2104195B (en)	1978-06-23	1982-06-02	Check valve assembly

Family Applications Before (2)

Application Number	Title	Priority Date	Filing Date
GB8132471A Expired GB2102918B (en)	1978-06-23	1979-06-22	Relief valve
GB8216022A Expired GB2101716B (en)	1978-06-23	1979-06-22	Check valve assembly

Family Applications After (2)

Application Number	Title	Priority Date	Filing Date
GB8132470A Expired GB2108241B (en)	1978-06-23	1981-10-28	Check valve
GB8216023A Expired GB2104195B (en)	1978-06-23	1982-06-02	Check valve assembly

Country Status (5)

Country	Link
JP (1)	JPS5527576A (en)
CA (1)	CA1101303A (en)
DE (1)	DE2925179A1 (en)
GB (5)	GB2102918B (en)
MX (1)	MX150564A (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5896644A (en) *	1981-12-03	1983-06-08	Mitsubishi Rayon Co Ltd	Reinforced resin composition
JPS58125724A (en) *	1982-01-21	1983-07-26	Asahi Chem Ind Co Ltd	Resin foam
EP0084754B2 (en) *	1982-01-26	1991-12-11	SOCLA SA Société dite	Back flow preventer for hydraulic conduits
JPS59102947A (en) *	1982-12-02	1984-06-14	Mitsubishi Rayon Co Ltd	Methacrylic resin composition
JPS59152855A (en) *	1983-02-22	1984-08-31	旭化成株式会社	Solid multilayer acryl sheet-shaped shape
JPS6086150A (en) *	1983-10-18	1985-05-15	Mitsubishi Rayon Co Ltd	Thermoplastic resin composition having excellent heat resistance and impact resistance
GB2179121B (en) *	1985-08-17	1989-08-02	Wigley Albert F	Improvements in or relating to fluid control valves
JPH02153962A (en) *	1988-07-04	1990-06-13	Asahi Chem Ind Co Ltd	Thermoplastic acrylic resin composition
JP2593557B2 (en) *	1989-07-20	1997-03-26	旭化成工業株式会社	Multi-layer acrylic polymer
US4991622A (en) *	1989-12-19	1991-02-12	Cmb Industries	Multiply configurable backflow preventer
DE29605420U1 (en) *	1996-03-23	1996-06-13	Festo Kg, 73734 Esslingen	Quick exhaust valve for pneumatic applications
AU8715301A (en) *	2000-09-07	2002-03-22	Cmb Ind	Short-length reduced-pressure backflow preventor
WO2005095480A1 (en)	2004-03-30	2005-10-13	Mitsubishi Rayon Co., Ltd.	Impact resistance modifier and resin composition
JP5401030B2 (en)	2007-11-27	2014-01-29	住友化学株式会社	Extruded resin film and method for producing the same
JP5123654B2 (en)	2007-12-11	2013-01-23	住友化学株式会社	Method for producing extruded resin plate
JP5323349B2 (en)	2007-12-21	2013-10-23	住友化学株式会社	Method for producing extruded resin sheet
JP5189399B2 (en)	2008-04-07	2013-04-24	国立大学法人信州大学	Check valve
JP5189403B2 (en)	2008-05-08	2013-04-24	国立大学法人信州大学	Backflow prevention device
JP5323546B2 (en) *	2009-03-23	2013-10-23	住友化学株式会社	Matte resin film, decorative film, decorative sheet and decorative molded product using the same
EP2711394A4 (en)	2011-05-10	2014-04-02	Mitsubishi Rayon Co	Acrylic resin composition, acrylic resin sheet, acrylic resin laminate, and manufacturing method for same
USD736870S1 (en) *	2013-06-07	2015-08-18	The Pill Golf LLC	Flat chamfered golf ball
TWI633147B (en)	2013-11-25	2018-08-21	Kuraray Co., Ltd.	Acrylic resin film and manufacturing method thereof
KR102262997B1 (en)	2017-05-16	2021-06-09	가부시키가이샤 가네카	Dope for film manufacture, and manufacturing method of a film
CN108717963B (en) *	2018-06-01	2024-06-18	宁德时代新能源科技股份有限公司	Valve assembly, cover assembly, secondary battery and battery module
CN111692771B (en) *	2019-03-15	2023-12-19	开利公司	Ejector and refrigeration system
CN113803503B (en) *	2021-09-17	2023-04-18	沈阳工程学院	Right-angle hydraulic control one-way valve for internet of things terminal information acquisition

1979
- 1979-06-21 MX MX17816779A patent/MX150564A/en unknown
- 1979-06-22 JP JP7900779A patent/JPS5527576A/en active Pending
- 1979-06-22 CA CA330,412A patent/CA1101303A/en not_active Expired
- 1979-06-22 GB GB8132471A patent/GB2102918B/en not_active Expired
- 1979-06-22 GB GB8216022A patent/GB2101716B/en not_active Expired
- 1979-06-22 GB GB7921914A patent/GB2023776B/en not_active Expired
- 1979-06-22 DE DE19792925179 patent/DE2925179A1/en not_active Withdrawn
1981
- 1981-10-28 GB GB8132470A patent/GB2108241B/en not_active Expired
1982
- 1982-06-02 GB GB8216023A patent/GB2104195B/en not_active Expired

Also Published As

Publication number	Publication date
MX150564A (en)	1984-05-30
GB2102918A (en)	1983-02-09
GB2108241B (en)	1983-09-07
GB2104195B (en)	1983-06-08
DE2925179A1 (en)	1980-01-24
GB2104195A (en)	1983-03-02
GB2101716A (en)	1983-01-19
CA1101303A (en)	1981-05-19
JPS5527576A (en)	1980-02-27
GB2023776A (en)	1980-01-03
GB2101716B (en)	1983-05-25
GB2108241A (en)	1983-05-11
GB2102918B (en)	1983-06-08

Publication	Publication Date	Title
GB2023776B (en)	1983-02-16	Backflow prevention apparatus
GB2025378B (en)	1982-08-04	Docufeeding apparatus
GB2029506B (en)	1982-09-22	Pump apparatus
JPS54115147A (en)	1979-09-07	Electrochrom apparatus
ZA792886B (en)	1981-02-25	Apparatus
DE2962020D1 (en)	1982-03-11	Egg-collecting apparatus
YU221078A (en)	1983-10-31	Arosol apparatus
AU4277278A (en)	1979-07-26	Apparatus
JPS5530093A (en)	1980-03-03	Blowwout prevention device
EP0004706A3 (en)	1979-10-31	Wire-guidance apparatus
JPS54119100A (en)	1979-09-14	Comparing apparatus
DE2965324D1 (en)	1983-06-09	Toilet apparatus
GB2029330B (en)	1982-08-04	Drawing apparatus
GB2020356B (en)	1982-04-28	Pumping apparatus
JPS54102607A (en)	1979-08-13	Shower apparatus
GB2021971B (en)	1982-11-03	Piperting apparatus
GB2038585B (en)	1983-04-27	Duct-tracing apparatus
GB2039190B (en)	1983-03-23	Telecine apparatus
GB2023690B (en)	1982-12-08	Sanitation apparatus
GB2024273B (en)	1982-10-13	Blow-texturing apparatus
GB2099362B (en)	1983-04-27	Sheet-laminating apparatus
JPS5497120A (en)	1979-08-01	Videooeducational apparatus
JPS5554912A (en)	1980-04-22	Kitchen apparatus
GB2037891B (en)	1983-04-13	Oxygengenerating apparatus
GB2034969B (en)	1983-02-09	Electron-optic or ion-optic device

Legal Events

Date	Code	Title	Description
1986-02-19	PCNP	Patent ceased through non-payment of renewal fee