CH491369A - Backflow preventer - Google Patents

Backflow preventer

Info

Publication number
CH491369A
CH491369A CH667768A CH667768A CH491369A CH 491369 A CH491369 A CH 491369A CH 667768 A CH667768 A CH 667768A CH 667768 A CH667768 A CH 667768A CH 491369 A CH491369 A CH 491369A
Authority
CH
Switzerland
Prior art keywords
backflow preventer
preventer
backflow
Prior art date
Application number
CH667768A
Other languages
German (de)
Inventor
Vogelsanger Maximilian
Original Assignee
Aquametro Wassermesserfabrik A
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 Aquametro Wassermesserfabrik A filed Critical Aquametro Wassermesserfabrik A
Priority to CH667768A priority Critical patent/CH491369A/en
Priority to NL6807605A priority patent/NL6807605A/xx
Publication of CH491369A publication Critical patent/CH491369A/en

Links

Classifications

    • 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
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery
    • F16K15/145—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery the closure elements being shaped as a solids of revolution, e.g. cylindrical or conical
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/005—Valves

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
CH667768A 1968-05-06 1968-05-06 Backflow preventer CH491369A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH667768A CH491369A (en) 1968-05-06 1968-05-06 Backflow preventer
NL6807605A NL6807605A (en) 1968-05-06 1968-05-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH667768A CH491369A (en) 1968-05-06 1968-05-06 Backflow preventer

Publications (1)

Publication Number Publication Date
CH491369A true CH491369A (en) 1970-05-31

Family

ID=4313286

Family Applications (1)

Application Number Title Priority Date Filing Date
CH667768A CH491369A (en) 1968-05-06 1968-05-06 Backflow preventer

Country Status (2)

Country Link
CH (1) CH491369A (en)
NL (1) NL6807605A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064331A1 (en) * 1981-05-02 1982-11-10 United Gas Industries Plc Gas meters
WO1983002320A1 (en) * 1981-12-21 1983-07-07 Lionel Ivor Alfred Taylor Improvements in non-return valves

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064331A1 (en) * 1981-05-02 1982-11-10 United Gas Industries Plc Gas meters
WO1983002320A1 (en) * 1981-12-21 1983-07-07 Lionel Ivor Alfred Taylor Improvements in non-return valves

Also Published As

Publication number Publication date
NL6807605A (en) 1969-11-10

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Legal Events

Date Code Title Description
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