AU7418174A - Backflow prevention apparatus - Google Patents

Backflow prevention apparatus

Info

Publication number
AU7418174A
AU7418174A AU74181/74A AU7418174A AU7418174A AU 7418174 A AU7418174 A AU 7418174A AU 74181/74 A AU74181/74 A AU 74181/74A AU 7418174 A AU7418174 A AU 7418174A AU 7418174 A AU7418174 A AU 7418174A
Authority
AU
Australia
Prior art keywords
backflow prevention
prevention apparatus
backflow
prevention
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
AU74181/74A
Other versions
AU494338B2 (en
Inventor
Richard E Veit
David E Griswold
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.)
Filing date
Publication date
Application filed by Griswold Controls LLC filed Critical Griswold Controls LLC
Application granted granted Critical
Publication of AU494338B2 publication Critical patent/AU494338B2/en
Publication of AU7418174A publication Critical patent/AU7418174A/en
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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Safety Valves (AREA)
  • Fluid-Driven Valves (AREA)
AU74181/74A 1973-10-26 1974-10-10 Backflow prevention apparatus Expired AU494338B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US41017373A 1973-10-26 1973-10-26
USUS410173 1973-10-26

Publications (2)

Publication Number Publication Date
AU494338B2 AU494338B2 (en) 1976-04-15
AU7418174A true AU7418174A (en) 1976-04-15

Family

ID=

Also Published As

Publication number Publication date
FR2257834A1 (en) 1975-08-08
IL45802A (en) 1977-05-31
GB1490553A (en) 1977-11-02
CA1066164A (en) 1979-11-13
FR2250939B1 (en) 1978-08-11
FR2250939A1 (en) 1975-06-06
FR2257834B1 (en) 1979-10-05
DE2450465A1 (en) 1975-04-30
ZA746432B (en) 1976-06-30
IL45802A0 (en) 1975-03-13
BR7408966D0 (en) 1975-09-23
JPS5083819A (en) 1975-07-07

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