DD104609A5 - - Google Patents

Info

Publication number
DD104609A5
DD104609A5 DD172088A DD17208873A DD104609A5 DD 104609 A5 DD104609 A5 DD 104609A5 DD 172088 A DD172088 A DD 172088A DD 17208873 A DD17208873 A DD 17208873A DD 104609 A5 DD104609 A5 DD 104609A5
Authority
DD
German Democratic Republic
Application number
DD172088A
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 filed Critical
Publication of DD104609A5 publication Critical patent/DD104609A5/xx

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
    • F16K17/044—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 more than one spring
    • 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
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • Y10T137/7841—One valve carries head and seat for second valve
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7876—With external means for opposing bias
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7925—Piston-type valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8225—Position or extent of motion indicator
    • Y10T137/8242—Electrical

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
  • Safety Valves (AREA)
  • Control Of Presses (AREA)
DD172088A 1973-02-26 1973-07-05 DD104609A5 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732309552 DE2309552A1 (de) 1973-02-26 1973-02-26 Sicherheitsrueckschlagventil

Publications (1)

Publication Number Publication Date
DD104609A5 true DD104609A5 (xx) 1974-03-12

Family

ID=5873135

Family Applications (1)

Application Number Title Priority Date Filing Date
DD172088A DD104609A5 (xx) 1973-02-26 1973-07-05

Country Status (9)

Country Link
US (1) US3916946A (xx)
JP (1) JPS5546543B2 (xx)
CH (1) CH550957A (xx)
DD (1) DD104609A5 (xx)
DE (1) DE2309552A1 (xx)
ES (1) ES416870A1 (xx)
FR (1) FR2219354B3 (xx)
GB (1) GB1386204A (xx)
IT (1) IT990852B (xx)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5391033U (xx) * 1976-12-27 1978-07-25
JPS53113403U (xx) * 1977-02-18 1978-09-09
FR2531176A1 (fr) * 1982-07-29 1984-02-03 Framatome Sa Dispositif de detection du fonctionnement d'une soupape
US4591314A (en) * 1984-07-09 1986-05-27 Sundstrand Corporation Hydraulic power supply system utilizing a solid propellant gas generator
US4699171A (en) * 1986-12-19 1987-10-13 Sundstrand Corporation Multiple port relief valve
DE3723673A1 (de) * 1987-07-17 1989-01-26 Wessel Hydraulik Extern angesteuertes rueckschlagventil
IT211836Z2 (it) * 1987-09-24 1989-05-25 Barbieri Aldo E Figli S N C Valvola di ritegno a doppia chiusura con scarichi.
US4967791A (en) * 1989-04-26 1990-11-06 The Boeing Company Pressure activated check valve
US5826613A (en) * 1993-05-19 1998-10-27 Georg Fischer Rohrleitungssysteme Ag Flow control valve
US5685329A (en) * 1995-10-05 1997-11-11 Taylor; Julian S. Dual inline rupture pin release and reseating spring loaded relief valve
US5918628A (en) * 1997-06-17 1999-07-06 Parker-Hannifin Corporation Multi-stage check valve
FR2777966B1 (fr) * 1998-04-27 2000-05-19 Coflexip Soupape differentielle pour conduite flexible sous-marine
AT408792B (de) * 1999-11-22 2002-03-25 Hoerbiger Hydraulik Hydraulische betätigungsanordnung
AT412112B (de) * 2002-09-30 2004-09-27 Hoerbiger Hydraulik Vorspannventil mit zumindest zwei schaltstufen sowie hydraulische betätigungsanordnung
US7114516B2 (en) * 2002-10-15 2006-10-03 Takasago Engineering Co., Ltd. Leak-detecting check valve, and leak-detection alarm system that uses said check valve
US20070235084A1 (en) * 2006-04-07 2007-10-11 Kim Yong C Leak compensating valve with flow switch indicator
US7762273B2 (en) * 2007-06-29 2010-07-27 Olab S.R.L. Venting device
KR101035101B1 (ko) * 2011-03-31 2011-05-19 한국뉴매틱(주) 이단 에어콘트롤 밸브
US10900585B2 (en) * 2019-02-18 2021-01-26 Automatic Switch Company Coaxial valves
CN112145755A (zh) * 2020-09-22 2020-12-29 南通龙源电站阀门有限公司 一种止回阀的紧急切断机构

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2306012A (en) * 1941-06-11 1942-12-22 John Eley Jr Check valve
US2458763A (en) * 1944-05-13 1949-01-11 Turbo Engineering Corp Lubricating system for mechanisms operating at high altitudes
US2724239A (en) * 1952-04-21 1955-11-22 Samuel S Fox Fuel flow distributing and manifold pressurizing valve for dual orifice fuel injection nozzles
US2930401A (en) * 1956-11-16 1960-03-29 Bobrick Mfg Corp Poppet valve construction
US3476142A (en) * 1966-09-16 1969-11-04 Eaton Yale & Towne Multiple check valve
US3669506A (en) * 1970-04-28 1972-06-13 Wagner Electric Corp Control valve
US3749121A (en) * 1971-05-11 1973-07-31 P Frankewich Relief valve apparatus
US3706321A (en) * 1971-09-21 1972-12-19 Acf Ind Inc Manual override indicator for gate valve
US3801233A (en) * 1971-12-07 1974-04-02 Boiteau M Valve assemblies
US3789875A (en) * 1972-05-15 1974-02-05 Gray Tool Co Fluid pressure actuated valve operator

Also Published As

Publication number Publication date
ES416870A1 (es) 1976-02-16
GB1386204A (en) 1975-03-05
JPS5546543B2 (xx) 1980-11-25
JPS49118037A (xx) 1974-11-12
CH550957A (de) 1974-06-28
US3916946A (en) 1975-11-04
FR2219354B3 (xx) 1978-02-17
DE2309552A1 (de) 1974-09-05
IT990852B (it) 1975-07-10
FR2219354A1 (xx) 1974-09-20

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