NL7706865A - RETURN FLAP VALVE. - Google Patents

RETURN FLAP VALVE.

Info

Publication number
NL7706865A
NL7706865A NL7706865A NL7706865A NL7706865A NL 7706865 A NL7706865 A NL 7706865A NL 7706865 A NL7706865 A NL 7706865A NL 7706865 A NL7706865 A NL 7706865A NL 7706865 A NL7706865 A NL 7706865A
Authority
NL
Netherlands
Prior art keywords
flap valve
return flap
return
valve
flap
Prior art date
Application number
NL7706865A
Other languages
Dutch (nl)
Original Assignee
Keystone Int
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 Keystone Int filed Critical Keystone Int
Publication of NL7706865A publication Critical patent/NL7706865A/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
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
    • F16K15/036—Dual valve members with hinges crossing the flow line substantially diametrical
    • F16K15/038—Dual valve members with hinges crossing the flow line substantially diametrical having a common hinge

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
NL7706865A 1976-06-23 1977-06-21 RETURN FLAP VALVE. NL7706865A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69896576A 1976-06-23 1976-06-23

Publications (1)

Publication Number Publication Date
NL7706865A true NL7706865A (en) 1977-12-28

Family

ID=24807362

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7706865A NL7706865A (en) 1976-06-23 1977-06-21 RETURN FLAP VALVE.

Country Status (4)

Country Link
BR (1) BR7704061A (en)
DE (1) DE2728115A1 (en)
FR (1) FR2356070A1 (en)
NL (1) NL7706865A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4192339A (en) * 1978-09-11 1980-03-11 The B. F. Goodrich Company Valve assembly

Also Published As

Publication number Publication date
FR2356070A1 (en) 1978-01-20
DE2728115A1 (en) 1978-01-05
BR7704061A (en) 1978-03-28

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Legal Events

Date Code Title Description
BV The patent application has lapsed