CA1147242A - Fail safe device for actuators - Google Patents

Fail safe device for actuators

Info

Publication number
CA1147242A
CA1147242A CA000356472A CA356472A CA1147242A CA 1147242 A CA1147242 A CA 1147242A CA 000356472 A CA000356472 A CA 000356472A CA 356472 A CA356472 A CA 356472A CA 1147242 A CA1147242 A CA 1147242A
Authority
CA
Canada
Prior art keywords
actuator
fail
piston
housing
safe
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
CA000356472A
Other languages
English (en)
French (fr)
Inventor
Jeremy J. Fry
Christopher Warnett
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.)
Rotork Controls Ltd
Original Assignee
Rotork Controls Ltd
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 Rotork Controls Ltd filed Critical Rotork Controls Ltd
Application granted granted Critical
Publication of CA1147242A publication Critical patent/CA1147242A/en
Expired legal-status Critical Current

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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F15B15/066—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the scotch yoke type

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Fluid-Pressure Circuits (AREA)
CA000356472A 1979-07-20 1980-07-18 Fail safe device for actuators Expired CA1147242A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7925443 1979-07-20
GB7925443 1979-07-20

Publications (1)

Publication Number Publication Date
CA1147242A true CA1147242A (en) 1983-05-31

Family

ID=10506672

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000356472A Expired CA1147242A (en) 1979-07-20 1980-07-18 Fail safe device for actuators

Country Status (9)

Country Link
US (1) US4350081A (enExample)
EP (1) EP0023120B1 (enExample)
JP (1) JPS5655703A (enExample)
AU (1) AU6061380A (enExample)
CA (1) CA1147242A (enExample)
DE (1) DE3063770D1 (enExample)
IN (1) IN153573B (enExample)
MX (1) MX150720A (enExample)
ZA (1) ZA804223B (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4469016A (en) * 1982-01-28 1984-09-04 International Telephone And Telegraph Corporation Spring safety device
JPS61160609A (ja) * 1984-12-31 1986-07-21 Hino Motors Ltd シリンダ装置
JPH0322104U (enExample) * 1989-07-14 1991-03-06
EP0569211A1 (en) * 1992-05-02 1993-11-10 Prime Actuator Control Systems Limited Actuator
US5601110A (en) * 1995-09-11 1997-02-11 Bettis Corporation Module locking device
US5924671A (en) * 1996-04-12 1999-07-20 Fisher Controls International, Inc. Rotary valve actuator and linkage
US6076799A (en) * 1996-04-12 2000-06-20 Fisher Controls International, Inc. Rotary valve actuator and linkage
US8544820B2 (en) * 2009-06-30 2013-10-01 Fisher Controls International Llc Biasing apparatus for use with actuators
EP3029338B1 (en) * 2014-12-01 2017-03-22 Rotork Fluid Systems S.r.l. Valve actuator device with driving arm having a modular structure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US742290A (en) * 1902-07-14 1903-10-27 James H Clark Automatic pressure-actuated governor for steam engines or pumps.
US3169293A (en) * 1962-07-16 1965-02-16 Neuschotz Robert Quick release fastener structure
GB1174121A (en) * 1967-06-23 1969-12-10 Automotive Prod Co Ltd Improvements in and relating to Actuators for Producing Rotary Motion
US3585824A (en) * 1969-03-21 1971-06-22 Dzus Fastener Co Fastener assembly
US3727523A (en) * 1971-05-07 1973-04-17 Res Eng Co Spring return cartridge
US3824901A (en) * 1973-01-18 1974-07-23 Shafer Valve Co Spring return for piston operator

Also Published As

Publication number Publication date
US4350081A (en) 1982-09-21
EP0023120A1 (en) 1981-01-28
IN153573B (enExample) 1984-07-28
JPS5655703A (en) 1981-05-16
MX150720A (es) 1984-07-04
ZA804223B (en) 1982-01-27
AU6061380A (en) 1981-01-22
JPS6120726B2 (enExample) 1986-05-23
EP0023120B1 (en) 1983-06-15
DE3063770D1 (en) 1983-07-21

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Legal Events

Date Code Title Description
MKEX Expiry