FR442128A - Check valve - Google Patents

Check valve

Info

Publication number
FR442128A
FR442128A FR442128DA FR442128A FR 442128 A FR442128 A FR 442128A FR 442128D A FR442128D A FR 442128DA FR 442128 A FR442128 A FR 442128A
Authority
FR
France
Prior art keywords
check valve
check
valve
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
Other languages
French (fr)
Inventor
John Warner Cumley
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.)
JOHN WARNER CUMLEY
Original Assignee
JOHN WARNER CUMLEY
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 JOHN WARNER CUMLEY filed Critical JOHN WARNER CUMLEY
Application granted granted Critical
Publication of FR442128A publication Critical patent/FR442128A/en
Expired legal-status Critical Current

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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/10—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with auxiliary valve for fluid operation of the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR442128D 1912-04-03 1912-04-03 Check valve Expired FR442128A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR442128T 1912-04-03

Publications (1)

Publication Number Publication Date
FR442128A true FR442128A (en) 1912-08-24

Family

ID=1483320

Family Applications (1)

Application Number Title Priority Date Filing Date
FR442128D Expired FR442128A (en) 1912-04-03 1912-04-03 Check valve

Country Status (1)

Country Link
FR (1) FR442128A (en)

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