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GB2289374B - Electromagnetic actuators - Google Patents

Electromagnetic actuators

Info

Publication number
GB2289374B
GB2289374B GB9409139A GB9409139A GB2289374B GB 2289374 B GB2289374 B GB 2289374B GB 9409139 A GB9409139 A GB 9409139A GB 9409139 A GB9409139 A GB 9409139A GB 2289374 B GB2289374 B GB 2289374B
Authority
GB
United Kingdom
Prior art keywords
electromagnetic actuators
actuators
electromagnetic
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
GB9409139A
Other versions
GB9409139D0 (en
GB2289374A (en
Inventor
Steven Ernest Lane
Martin Snell
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.)
Whipp and Bourne Ltd
Brush Holdings Ltd
Original Assignee
Whipp and Bourne Ltd
FKI PLC
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 Whipp and Bourne Ltd, FKI PLC filed Critical Whipp and Bourne Ltd
Priority to GB9409139A priority Critical patent/GB2289374B/en
Publication of GB9409139D0 publication Critical patent/GB9409139D0/en
Publication of GB2289374A publication Critical patent/GB2289374A/en
Application granted granted Critical
Publication of GB2289374B publication Critical patent/GB2289374B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2209—Polarised relays with rectilinearly movable armature

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
GB9409139A 1994-05-09 1994-05-09 Electromagnetic actuators Expired - Lifetime GB2289374B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9409139A GB2289374B (en) 1994-05-09 1994-05-09 Electromagnetic actuators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9409139A GB2289374B (en) 1994-05-09 1994-05-09 Electromagnetic actuators

Publications (3)

Publication Number Publication Date
GB9409139D0 GB9409139D0 (en) 1994-06-29
GB2289374A GB2289374A (en) 1995-11-15
GB2289374B true GB2289374B (en) 1998-02-18

Family

ID=10754763

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9409139A Expired - Lifetime GB2289374B (en) 1994-05-09 1994-05-09 Electromagnetic actuators

Country Status (1)

Country Link
GB (1) GB2289374B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9368266B2 (en) 2014-07-18 2016-06-14 Trumpet Holdings, Inc. Electric solenoid structure having elastomeric biasing member
US12094674B2 (en) 2018-11-05 2024-09-17 HYDRO-QUéBEC Bi-stable electromagnetic actuator

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5912604A (en) * 1997-02-04 1999-06-15 Abb Power T&D Company, Inc. Molded pole automatic circuit recloser with bistable electromagnetic actuator
NL1007072C2 (en) * 1997-09-18 1999-03-22 Holec Holland Nv Electromagnetic actuator for moving contact into switched on or off state with contact actuating rod displaceable in longitudinal direction between two positions, on and off
FR2805386A1 (en) * 2000-02-17 2001-08-24 Luxalp Fluid control bistable electromagnet having extended inner moving axial magnet and outer armature with lower pole position and upper extending arm forming second magnet position.
GB0005185D0 (en) * 2000-03-04 2000-04-26 Luk Lamellen & Kupplungsbau Gear engagement mechanisms
US6791442B1 (en) 2003-11-21 2004-09-14 Trombetta, Llc Magnetic latching solenoid
FR2871617B1 (en) * 2004-06-15 2007-02-16 Daniel Lucas BISTABLE ACTUATOR, CIRCUIT BREAKER COMPRISING THE ACTUATOR AND SAFETY DEVICE EQUIPPED WITH SAID CIRCUIT BREAKER
US7518269B2 (en) * 2005-03-18 2009-04-14 Ls Industrial Systems Co., Ltd. Actuator using permanent magnet
DE102009043722A1 (en) * 2009-10-01 2011-04-07 Pierburg Gmbh Actuator for an internal combustion engine
PL232577B1 (en) * 2018-07-09 2019-06-28 Lubelska Polt Two-sided plunger electromagnet

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091725A (en) * 1958-08-28 1963-05-28 American Radiator & Standard Electro-magnetic device
US3792390A (en) * 1973-05-29 1974-02-19 Allis Chalmers Magnetic actuator device
US3886507A (en) * 1973-10-05 1975-05-27 Westinghouse Electric Corp Adjustable latch for a relay
US4000481A (en) * 1976-02-09 1976-12-28 I-T-E Imperial Corporation Magnetic latch with shunt path barrel
US4072918A (en) * 1976-12-01 1978-02-07 Regdon Corporation Bistable electromagnetic actuator
US4157520A (en) * 1975-11-04 1979-06-05 Westinghouse Electric Corp. Magnetic flux shifting ground fault trip indicator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091725A (en) * 1958-08-28 1963-05-28 American Radiator & Standard Electro-magnetic device
US3792390A (en) * 1973-05-29 1974-02-19 Allis Chalmers Magnetic actuator device
US3886507A (en) * 1973-10-05 1975-05-27 Westinghouse Electric Corp Adjustable latch for a relay
US4157520A (en) * 1975-11-04 1979-06-05 Westinghouse Electric Corp. Magnetic flux shifting ground fault trip indicator
US4000481A (en) * 1976-02-09 1976-12-28 I-T-E Imperial Corporation Magnetic latch with shunt path barrel
US4072918A (en) * 1976-12-01 1978-02-07 Regdon Corporation Bistable electromagnetic actuator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9368266B2 (en) 2014-07-18 2016-06-14 Trumpet Holdings, Inc. Electric solenoid structure having elastomeric biasing member
US12094674B2 (en) 2018-11-05 2024-09-17 HYDRO-QUéBEC Bi-stable electromagnetic actuator

Also Published As

Publication number Publication date
GB9409139D0 (en) 1994-06-29
GB2289374A (en) 1995-11-15

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20111124 AND 20111129

PE20 Patent expired after termination of 20 years

Expiry date: 20140508