DE2922062C2 - Rücklaufsperrvorrichtung - Google Patents

Rücklaufsperrvorrichtung

Info

Publication number
DE2922062C2
DE2922062C2 DE2922062A DE2922062A DE2922062C2 DE 2922062 C2 DE2922062 C2 DE 2922062C2 DE 2922062 A DE2922062 A DE 2922062A DE 2922062 A DE2922062 A DE 2922062A DE 2922062 C2 DE2922062 C2 DE 2922062C2
Authority
DE
Germany
Prior art keywords
valve
channel
check valve
gas inlet
opening
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.)
Expired
Application number
DE2922062A
Other languages
German (de)
English (en)
Other versions
DE2922062A1 (de
Inventor
Rand H. Methuen Mass. Ackroyd
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.)
Watts Water Technologies Inc
Original Assignee
Watts Regulator Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25428897&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE2922062(C2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Watts Regulator Co filed Critical Watts Regulator Co
Publication of DE2922062A1 publication Critical patent/DE2922062A1/de
Application granted granted Critical
Publication of DE2922062C2 publication Critical patent/DE2922062C2/de
Expired legal-status Critical Current

Links

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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2544—Supply and exhaust type
    • Y10T137/2557—Waste responsive to flow stoppage
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/3149—Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
    • Y10T137/3185—Air vent in liquid flow line
    • Y10T137/3294—Valved
    • Y10T137/3331—With co-acting valve in liquid flow path

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)
DE2922062A 1978-05-30 1979-05-30 Rücklaufsperrvorrichtung Expired DE2922062C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/910,509 US4241752A (en) 1978-05-30 1978-05-30 Backflow preventer

Publications (2)

Publication Number Publication Date
DE2922062A1 DE2922062A1 (de) 1979-12-06
DE2922062C2 true DE2922062C2 (de) 1985-10-03

Family

ID=25428897

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2922062A Expired DE2922062C2 (de) 1978-05-30 1979-05-30 Rücklaufsperrvorrichtung

Country Status (5)

Country Link
US (1) US4241752A (en, 2012)
JP (1) JPS54158725A (en, 2012)
CA (1) CA1116976A (en, 2012)
DE (1) DE2922062C2 (en, 2012)
FR (1) FR2427532B1 (en, 2012)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553563A (en) * 1982-05-28 1985-11-19 Mueller Co. Relief valve assembly for use with backflow preventers
US4489746A (en) * 1982-05-28 1984-12-25 Mueller Co. Backflow preventer apparatus
US4453561A (en) * 1982-05-28 1984-06-12 Mueller Co. Check valve assembly for use in backflow preventers or the like
US4523607A (en) * 1982-05-28 1985-06-18 Mueller Co. Backflow preventer apparatus
US4506694A (en) * 1982-05-28 1985-03-26 Mueller Co. Relief valve assembly for use with backflow preventers
DE3247320C2 (de) * 1982-12-21 1986-03-20 Grünbeck Wasseraufbereitung GmbH, 8884 Höchstädt Rohrtrenner mit Schutz gegen Verunreinigung
JPH0328215Y2 (en, 2012) * 1984-11-19 1991-06-18
FR2599111B1 (fr) * 1986-05-21 1988-09-23 Bernard Massini Disjoncteur hydraulique controlable, a zone atmospherique d'evacuation du debit inverse
FR2738611B1 (fr) * 1995-09-12 1997-11-07 Haudiquer Dev Dispositif de securite destine a s'intercaler entre la conduite d'un reseau de distribution d'eau potable et la conduite d'alimentation d'un appareil utilisateur d'eau
US5950653A (en) * 1998-03-27 1999-09-14 Folsom; William D. High pressure relief valve for use with a backflow preventer
AU2003282978A1 (en) * 2002-10-18 2004-05-04 Watts Regulator Co. Spill-resistant relief valve
GB2453126B (en) 2007-09-26 2013-02-06 Intelligent Energy Ltd Fuel cell system
US12188213B2 (en) 2020-12-08 2025-01-07 Watts Regulator Co. Fluid detection systems and methods using the same
US12392919B2 (en) 2020-12-08 2025-08-19 Watts Regulator Co. Fluid detection systems and methods using the same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503424A (en) * 1945-01-15 1950-04-11 Leonard L Snyder Backflow preventer
US2620816A (en) * 1945-05-21 1952-12-09 Donald G Griswold Backflow prevention device
US3173439A (en) * 1961-06-26 1965-03-16 Donald G Griswold Backflow prevention device
FR1326744A (fr) * 1962-05-17 1963-05-10 Dispositif empêchant les écoulements en retour dans les réseaux de distribution d'eau
US3636968A (en) * 1970-10-05 1972-01-25 Watts Regulator Co Cross-connection control valve
US3818929A (en) * 1973-04-23 1974-06-25 H Braukmann Reduced pressure backflow preventer valve
IL45802A (en) * 1973-10-26 1977-05-31 Griswold Controls Check valve useful in backflow prevention apparatus
US3996962A (en) * 1976-03-19 1976-12-14 Rockwell International Corporation Backflow preventer and relief valve assembly

Also Published As

Publication number Publication date
CA1116976A (en) 1982-01-26
FR2427532B1 (fr) 1985-12-06
US4241752A (en) 1980-12-30
FR2427532A1 (fr) 1979-12-28
JPS6238596B2 (en, 2012) 1987-08-18
DE2922062A1 (de) 1979-12-06
JPS54158725A (en) 1979-12-14

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: WATTS INVESTMENT CO., WILMINGTON, DEL., US