CA954112A - Emergency manual drive for valve operator - Google Patents

Emergency manual drive for valve operator

Info

Publication number
CA954112A
CA954112A CA136,962A CA136962A CA954112A CA 954112 A CA954112 A CA 954112A CA 136962 A CA136962 A CA 136962A CA 954112 A CA954112 A CA 954112A
Authority
CA
Canada
Prior art keywords
manual drive
valve operator
emergency manual
emergency
operator
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
CA136,962A
Other languages
English (en)
Other versions
CA136962S (en
Inventor
Donald G. Fawkes
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.)
Pratt Henry Co
Original Assignee
Pratt Henry 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 Pratt Henry Co filed Critical Pratt Henry Co
Application granted granted Critical
Publication of CA954112A publication Critical patent/CA954112A/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
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • 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
    • F16H—GEARING
    • F16H2700/00—Transmission housings and mounting of transmission components therein; Cooling; Lubrication; Flexible suspensions, e.g. floating frames
    • F16H2700/02—Transmissions, specially for working vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)
CA136,962A 1971-08-23 1972-03-13 Emergency manual drive for valve operator Expired CA954112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17384871A 1971-08-23 1971-08-23

Publications (1)

Publication Number Publication Date
CA954112A true CA954112A (en) 1974-09-03

Family

ID=22633774

Family Applications (1)

Application Number Title Priority Date Filing Date
CA136,962A Expired CA954112A (en) 1971-08-23 1972-03-13 Emergency manual drive for valve operator

Country Status (3)

Country Link
US (1) US3745855A (fr)
BE (1) BE781138A (fr)
CA (1) CA954112A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4295390A (en) * 1979-10-19 1981-10-20 Fmc Corporation Manual override control for double-acting actuator
US7409833B2 (en) * 2005-03-10 2008-08-12 Sunpower, Inc. Dual mode compressor with automatic compression ratio adjustment for adapting to multiple operating conditions

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US575620A (en) * 1897-01-19 Rotary fan
US433968A (en) * 1890-08-12 Shaft and wheel coupling
US777374A (en) * 1903-01-20 1904-12-13 Chapman Valve Mfg Co Motor-disconnecting mechanism for valves.
US2010796A (en) * 1931-06-22 1935-08-06 Bourque Philp Clutch mechanism
US2114981A (en) * 1936-10-31 1938-04-19 Little Giant Inc Ltd Clutch mechanism for washing machines
US2390882A (en) * 1942-09-07 1945-12-11 David W Hopkins Declutching device for powerdriven butterfly valves
US2772578A (en) * 1953-06-15 1956-12-04 Conitech Ltd Power transmission with declutching provision for manual operation
US2815922A (en) * 1955-02-28 1957-12-10 C H Wheeler Mfg Co Power-operated mechanism
US3011359A (en) * 1959-03-06 1961-12-05 E I M Company Inc Operator for a rotatable stem valve or the like
GB1064954A (en) * 1963-05-31 1967-04-12 English Electric Co Ltd Improvements relating to operating mechanisms for spindle-controlled devices
GB998596A (en) * 1963-06-27 1965-07-14 Rotork Eng Co Ltd Improvements in or relating to actuating mechanisms, more particularly for valves

Also Published As

Publication number Publication date
BE781138A (fr) 1972-07-17
US3745855A (en) 1973-07-17

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