NL7806994A - ORGANIC TO PREVENT BACKFLOWS. - Google Patents

ORGANIC TO PREVENT BACKFLOWS.

Info

Publication number
NL7806994A
NL7806994A NL7806994A NL7806994A NL7806994A NL 7806994 A NL7806994 A NL 7806994A NL 7806994 A NL7806994 A NL 7806994A NL 7806994 A NL7806994 A NL 7806994A NL 7806994 A NL7806994 A NL 7806994A
Authority
NL
Netherlands
Prior art keywords
organic
prevent backflows
backflows
prevent
Prior art date
Application number
NL7806994A
Other languages
Dutch (nl)
Original Assignee
Waletzko Alfred Apparatebau
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 Waletzko Alfred Apparatebau filed Critical Waletzko Alfred Apparatebau
Publication of NL7806994A publication Critical patent/NL7806994A/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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
NL7806994A 1977-09-03 1978-06-29 ORGANIC TO PREVENT BACKFLOWS. NL7806994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772739801 DE2739801A1 (en) 1977-09-03 1977-09-03 BACKFLOW PREVENTORS, IN PARTICULAR FOR PIPE CUTTERS

Publications (1)

Publication Number Publication Date
NL7806994A true NL7806994A (en) 1979-03-06

Family

ID=6018067

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7806994A NL7806994A (en) 1977-09-03 1978-06-29 ORGANIC TO PREVENT BACKFLOWS.

Country Status (5)

Country Link
AT (1) AT367823B (en)
CH (1) CH632572A5 (en)
DE (1) DE2739801A1 (en)
FR (1) FR2402138A1 (en)
NL (1) NL7806994A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340085A (en) * 1979-05-01 1982-07-20 Crawford Ronald H Pressure regulating device with damping means for preventing valve chatter
FR2471536A1 (en) * 1979-12-17 1981-06-19 Pont A Mousson Closure spring non-return valve for water - uses axially slidable plug guided by perimeter rails and hub rail incorporated in cage
US4489752A (en) * 1982-09-28 1984-12-25 Compressor Valve Services, Inc. Guard guided multiple element flow configured poppet valve
DE3616589A1 (en) * 1986-05-16 1987-11-19 Baelz Juergen Controls Backflow-preventing device, in particular in drinking-water lines
JPH0534390Y2 (en) * 1988-03-24 1993-08-31
DE3815861A1 (en) * 1988-05-09 1989-11-23 Liebherr Hausgeraete VALVE-BASED DISTRIBUTION PIECE FOR CONNECTING TO A WALL OF A CAVITY TO BE FOAMED
DE102015211070A1 (en) * 2015-06-17 2016-12-22 Robert Bosch Gmbh Pressure relief valve

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1162029A (en) * 1956-04-24 1958-09-08 Aeroquip Corp Shell retainer specially applicable to spindly fluid pipelines
US3193247A (en) * 1962-02-28 1965-07-06 Rockwell Mfg Co Sequentially seated valve
GB1266306A (en) * 1969-04-22 1972-03-08
DE2628239A1 (en) * 1976-06-24 1978-01-05 Peter Dr Ing Daublebsky Fast acting non-return valve - has lightweight valve head and guide, suitable for nuclear reactors
DE2650934A1 (en) * 1976-11-08 1978-05-11 Waletzko Alfred Apparatebau Back flow preventer between drinking and washing water pipework - has guide rings fitted between valve and guide rod

Also Published As

Publication number Publication date
DE2739801A1 (en) 1979-03-15
AT367823B (en) 1982-08-10
FR2402138A1 (en) 1979-03-30
ATA460978A (en) 1981-12-15
FR2402138B1 (en) 1985-03-22
CH632572A5 (en) 1982-10-15

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
CNR Transfer of rights (patent application after its laying openfor public ins pection)

Free format text: LANG APPARATEBAU G.M.B.H.

BB A search report has been drawn up
BC A request for examination has been filed
BN A decision not to publish the application has become irrevocable