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GB2196494B - Electric actuators for controlling valves. - Google Patents

Electric actuators for controlling valves.

Info

Publication number
GB2196494B
GB2196494B GB8720260A GB8720260A GB2196494B GB 2196494 B GB2196494 B GB 2196494B GB 8720260 A GB8720260 A GB 8720260A GB 8720260 A GB8720260 A GB 8720260A GB 2196494 B GB2196494 B GB 2196494B
Authority
GB
United Kingdom
Prior art keywords
electric actuators
controlling valves
valves
controlling
actuators
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 - Lifetime
Application number
GB8720260A
Other versions
GB8720260D0 (en
GB2196494A (en
Inventor
Stewart Hardwick
Graham Michael Ogden
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
Priority claimed from GB868621274A external-priority patent/GB8621274D0/en
Application filed by Rotork Controls Ltd filed Critical Rotork Controls Ltd
Priority to GB8720260A priority Critical patent/GB2196494B/en
Publication of GB8720260D0 publication Critical patent/GB8720260D0/en
Publication of GB2196494A publication Critical patent/GB2196494A/en
Application granted granted Critical
Publication of GB2196494B publication Critical patent/GB2196494B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/30—Structural association of asynchronous induction motors with auxiliary electric devices influencing the characteristics of the motor or controlling the motor, e.g. with impedances or switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
GB8720260A 1986-09-03 1987-08-27 Electric actuators for controlling valves. Expired - Lifetime GB2196494B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8720260A GB2196494B (en) 1986-09-03 1987-08-27 Electric actuators for controlling valves.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868621274A GB8621274D0 (en) 1986-09-03 1986-09-03 Actuators
GB8720260A GB2196494B (en) 1986-09-03 1987-08-27 Electric actuators for controlling valves.

Publications (3)

Publication Number Publication Date
GB8720260D0 GB8720260D0 (en) 1987-10-07
GB2196494A GB2196494A (en) 1988-04-27
GB2196494B true GB2196494B (en) 1991-01-16

Family

ID=26291252

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8720260A Expired - Lifetime GB2196494B (en) 1986-09-03 1987-08-27 Electric actuators for controlling valves.

Country Status (1)

Country Link
GB (1) GB2196494B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2255866B (en) * 1991-05-14 1995-08-02 Rotork Controls An actuactor and an electric motor drive system
KR100190354B1 (en) 1993-11-19 1999-06-01 나까무라 도시히꼬 Device for continuous detection of loads in motorized valve actuators
US5640007A (en) * 1995-06-21 1997-06-17 Limitorque Corporation Optical encoder comprising a plurality of encoder wheels
US7898147B2 (en) * 2006-05-10 2011-03-01 Honeywell International, Inc. Wireless actuator interface
GB0613662D0 (en) 2006-07-10 2006-08-16 Rotork Controls Improvements to valve actuators
JP6441877B2 (en) 2016-10-28 2018-12-19 三菱重工業株式会社 Explosion-proof robot

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1122772A (en) * 1966-02-04 1968-08-07 Derek Frederick Gerald Juniper Improvements relating to electrical remote control systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1122772A (en) * 1966-02-04 1968-08-07 Derek Frederick Gerald Juniper Improvements relating to electrical remote control systems

Also Published As

Publication number Publication date
GB8720260D0 (en) 1987-10-07
GB2196494A (en) 1988-04-27

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20070826