GB2116790B - Valve actuators - Google Patents

Valve actuators

Info

Publication number
GB2116790B
GB2116790B GB08217226A GB8217226A GB2116790B GB 2116790 B GB2116790 B GB 2116790B GB 08217226 A GB08217226 A GB 08217226A GB 8217226 A GB8217226 A GB 8217226A GB 2116790 B GB2116790 B GB 2116790B
Authority
GB
United Kingdom
Prior art keywords
valve actuators
actuators
valve
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
GB08217226A
Other versions
GB2116790A (en
Inventor
Donald L Hore
Jeremy J Fry
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
Publication of GB2116790A publication Critical patent/GB2116790A/en
Application granted granted Critical
Publication of GB2116790B publication Critical patent/GB2116790B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/24—Controlling the direction, e.g. clockwise or counterclockwise
GB08217226A 1981-06-25 1982-06-14 Valve actuators Expired GB2116790B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8119570 1981-06-25
GB8200881 1982-01-13

Publications (2)

Publication Number Publication Date
GB2116790A GB2116790A (en) 1983-09-28
GB2116790B true GB2116790B (en) 1985-06-19

Family

ID=26279905

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08217226A Expired GB2116790B (en) 1981-06-25 1982-06-14 Valve actuators

Country Status (5)

Country Link
DE (1) DE3222725A1 (en)
FR (1) FR2508673A1 (en)
GB (1) GB2116790B (en)
IN (1) IN156532B (en)
IT (1) IT1195933B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8431691D0 (en) * 1984-12-14 1985-01-30 Smiths Industries Plc Phase control
DE19707171A1 (en) * 1997-02-22 1998-08-27 Valeo Klimasysteme Gmbh Actuator control
FR2761521A1 (en) * 1997-04-01 1998-10-02 Schneider Electric Sa Inverter system for electrical drives
DE10103310A1 (en) * 2001-01-25 2002-08-14 Peter Krause Safety circuit for three-phase AC appliance e.g. electric motor, and connections, uses reduced voltage trip in switching appliance
DE60301150T2 (en) 2002-02-01 2006-01-05 Vetco Gray Controls Ltd., Nailsea linear actuator
DE10205664B4 (en) * 2002-02-12 2017-08-10 Stiebel Eltron Gmbh & Co. Kg Circuit for a three-phase motor
CN104600662B (en) * 2015-03-02 2017-06-20 臧垒 A kind of three-phase four-wire power entangles phase protection device automatically

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3214664A (en) * 1961-08-15 1965-10-26 Kito Seisakusho Kk Reversible polyphase motor with phase protective device
GB1032468A (en) * 1963-08-21 1966-06-08 Kito Seisakusho Kk A safety device for use for a three-phase electrical system
US3334273A (en) * 1965-07-12 1967-08-01 Thermo King Corp Control device for poly-phase electrical system
GB1208562A (en) * 1966-04-05 1970-10-14 Avery Hardoll Ltd Improvements in and relating to liquid dispensing apparatus
GB1144188A (en) * 1966-12-15 1969-03-05 Rotork Eng Co Ltd Improvements in or relating to electric motor operated actuators
GB1191527A (en) * 1967-08-07 1970-05-13 Inouye Shokai Kk Hydraulically-Actuated Flexible Chamber Pumps.
US4021704A (en) * 1976-02-27 1977-05-03 Borg-Warner Corporation Phase sequence correcting system for three-phase AC power

Also Published As

Publication number Publication date
IT8221979A0 (en) 1982-06-22
IT1195933B (en) 1988-11-03
GB2116790A (en) 1983-09-28
IN156532B (en) 1985-08-31
DE3222725A1 (en) 1983-01-27
FR2508673A1 (en) 1982-12-31

Similar Documents

Publication Publication Date Title
GB2144493B (en) Actuator valve
DE3270260D1 (en) Control valve
JPS57140973A (en) Valve
GB2109901B (en) Valve assembly
GB2147689B (en) Valve actuator
GB8311578D0 (en) Valve actuators
GB8432421D0 (en) Valve actuators
GB2101178B (en) Control valve
JPS57173605A (en) Control valve
IE822465L (en) Control valve
GB2109464B (en) Valve actuator
ZA826331B (en) Control valve arrangement
GB2116790B (en) Valve actuators
GB2104597B (en) Valves assembly
GB2151003B (en) Valve actuator
HK102090A (en) Valve constructions
JPS57161355A (en) Control valve
DE3261950D1 (en) Control-mixing valve
GB8303922D0 (en) Valves
GB2107434B (en) Multiple control valves
GB2095793B (en) Valves
GB8305868D0 (en) Valve actuators
EP0068711A3 (en) Male-ended valve
DE3265021D1 (en) Valve
JPS57186602A (en) Control valve

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee
740A Proceeding under section 40 patents act 1977