IT7923869A0 - Dispositivo di controllo per valvole doppie di sicurezza. - Google Patents

Dispositivo di controllo per valvole doppie di sicurezza.

Info

Publication number
IT7923869A0
IT7923869A0 IT7923869A IT2386979A IT7923869A0 IT 7923869 A0 IT7923869 A0 IT 7923869A0 IT 7923869 A IT7923869 A IT 7923869A IT 2386979 A IT2386979 A IT 2386979A IT 7923869 A0 IT7923869 A0 IT 7923869A0
Authority
IT
Italy
Prior art keywords
control device
safety valves
double safety
double
valves
Prior art date
Application number
IT7923869A
Other languages
English (en)
Other versions
IT1121937B (it
Original Assignee
Ross Operating Valve Co
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 Ross Operating Valve Co filed Critical Ross Operating Valve Co
Publication of IT7923869A0 publication Critical patent/IT7923869A0/it
Application granted granted Critical
Publication of IT1121937B publication Critical patent/IT1121937B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • F15B20/001—Double valve requiring the use of both hands simultaneously
    • 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
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87193—Pilot-actuated
    • Y10T137/87209—Electric
IT2386979A 1979-02-23 1979-06-26 Dispositivo di controllo per valvole doppie di sicurezza IT1121937B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/014,642 US4291613A (en) 1979-02-23 1979-02-23 Monitor for double safety valves

Publications (2)

Publication Number Publication Date
IT7923869A0 true IT7923869A0 (it) 1979-06-26
IT1121937B IT1121937B (it) 1986-04-23

Family

ID=21766758

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2386979A IT1121937B (it) 1979-02-23 1979-06-26 Dispositivo di controllo per valvole doppie di sicurezza

Country Status (7)

Country Link
US (1) US4291613A (it)
JP (1) JPS6014923B2 (it)
DE (1) DE2923467C2 (it)
FR (1) FR2449815A1 (it)
GB (1) GB2043302B (it)
IT (1) IT1121937B (it)
SU (1) SU976860A3 (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930571A1 (de) * 1979-07-27 1981-02-12 Technomatic Ag Aesch Sicherheitsventil
JP2529620Y2 (ja) * 1991-02-27 1997-03-19 甲南電機株式会社 電磁弁のモニター
SE505573C2 (sv) * 1995-12-19 1997-09-15 Ross Operating Valve Co Styranordning med självkontroll av styranordningens komponenter vid varje styrningsoperation
SE9600697L (sv) * 1996-02-23 1997-03-24 Ross Operating Valve Co Återinkopplingsspärr för ett i varje arbetscykel självkontrollerande styrdon
US5799561A (en) * 1996-07-15 1998-09-01 Ross Operating Valve Company Control device
US7114521B2 (en) * 2003-09-03 2006-10-03 Ross Operating Valve Company Double valve constructed from unitary single valves
JP4284687B2 (ja) * 2005-04-26 2009-06-24 Ｓｍｃ株式会社 真空及び真空破壊用複合弁
KR20160130390A (ko) * 2014-03-06 2016-11-11 페스토 악티엔 게젤샤프트 운트 코. 카게 밸브 조립체

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2324750A (en) * 1938-09-14 1943-07-20 Oilgear Co Control for hydrodynamic machines
US2527727A (en) * 1946-07-03 1950-10-31 Hobbs Transmission Ltd Power transmission apparatus
US2529393A (en) * 1946-09-28 1950-11-07 Clark Equipment Co Fluid control means for auxiliary transmissions
US2491087A (en) * 1947-07-30 1949-12-13 Harland W Cardwell Air controlled shifting mechanism
FR1241522A (fr) * 1958-11-26 1960-09-16 Dispositif de commande de sécurité pour circuit de servo-commande desservant un ouplusieurs appareils actionnés par un fluide sous pression applicable notamment aux presses
DE1426503B2 (de) * 1960-04-08 1971-02-04 Herion-Werke Kg, 7012 Fellbach Sicherheitssteuerung fur einen Druck mittelkreislauf mittels eines Meßgliedes
FR1276374A (fr) * 1960-12-19 1961-11-17 Système de servo-commande conjugué à au moins deux dispositifs fonctionnant sous pression, utilisable notamment pour la commande des presses
DE1426512B2 (de) * 1964-02-13 1971-10-07 Henon Werke KG, 7012 Fellbach Servosteuerung fuer einen druckverbraucher insbesondere fuer die kupplung oder bremse eines pressenantriebes
US3708211A (en) * 1967-03-28 1973-01-02 Wagner Electric Corp Control valve system
FR1555573A (it) * 1967-07-21 1969-01-31
US3606486A (en) * 1969-10-28 1971-09-20 Hydrasearch Co Inc Brake indicating safety valve
US3606487A (en) * 1969-11-04 1971-09-20 Wagner Electric Corp Control valve
JPS5147555B2 (it) * 1972-07-29 1976-12-15
US3799202A (en) * 1972-11-29 1974-03-26 Sperry Rand Corp Power transmission
FR2221723B2 (it) * 1972-12-27 1975-10-31 Dba
JPS588161B2 (ja) * 1974-07-30 1983-02-15 古河電気工業株式会社 チヨウジヤクカトウドウハカン

Also Published As

Publication number Publication date
FR2449815A1 (fr) 1980-09-19
IT1121937B (it) 1986-04-23
JPS6014923B2 (ja) 1985-04-16
DE2923467A1 (de) 1980-09-04
GB2043302A (en) 1980-10-01
JPS55112407A (en) 1980-08-30
FR2449815B1 (it) 1984-04-27
GB2043302B (en) 1983-01-26
DE2923467C2 (de) 1985-09-26
SU976860A3 (ru) 1982-11-23
US4291613A (en) 1981-09-29

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960626