GB1205145A - Improvements in magnetically actuated limit switch - Google Patents

Improvements in magnetically actuated limit switch

Info

Publication number
GB1205145A
GB1205145A GB45314/68A GB4531468A GB1205145A GB 1205145 A GB1205145 A GB 1205145A GB 45314/68 A GB45314/68 A GB 45314/68A GB 4531468 A GB4531468 A GB 4531468A GB 1205145 A GB1205145 A GB 1205145A
Authority
GB
United Kingdom
Prior art keywords
magnets
poles
contact
angle
magnetically actuated
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
GB45314/68A
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.)
General Electric Co
Original Assignee
General Electric 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 General Electric Co filed Critical General Electric Co
Publication of GB1205145A publication Critical patent/GB1205145A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0013—Permanent magnet actuating reed switches characterised by the co-operation between reed switch and permanent magnet; Magnetic circuits
    • H01H36/0026—Permanent magnet actuating reed switches characterised by the co-operation between reed switch and permanent magnet; Magnetic circuits comprising a biasing, helping or polarising magnet

Landscapes

  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

1,205,145. Movable magnet switches. GENERAL ELECTRIC CO. 24 Sept., 1968 [6 Oct., 1967], No. 45314/68. Heading H1N. A magnetically actuated switch for indicating relative movement of first and second objects comprises a magnetic contact unit 12 on one object (not shown) and two magnets 14, 16 mounted on the other object (shaft 10). The poles of the two magnets 14, 16 are arranged so that a " magnetic field extends between unlike poles of the two magnets " to attract the reed armature (34) away from a fixed contact (30) into engagement with a fixed contact 28. A permanent magnet (32) connects the contact (30) to its terminal 26 and its flux follows a path (A) to normally attract the movable reed. The contacts are operated for an angle of rotation of the shaft equal to the angle between the polar axes of the annular magnets which are adjustable to set this angle and the point of operation. The other poles assist the contact closure. Each annular magnet may have a plurality of poles.
GB45314/68A 1967-10-06 1968-09-24 Improvements in magnetically actuated limit switch Expired GB1205145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67341367A 1967-10-06 1967-10-06

Publications (1)

Publication Number Publication Date
GB1205145A true GB1205145A (en) 1970-09-16

Family

ID=24702549

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45314/68A Expired GB1205145A (en) 1967-10-06 1968-09-24 Improvements in magnetically actuated limit switch

Country Status (5)

Country Link
US (1) US3489971A (en)
JP (1) JPS4522457B1 (en)
DE (1) DE1800593A1 (en)
FR (1) FR1584905A (en)
GB (1) GB1205145A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4831350A (en) * 1987-11-30 1989-05-16 Proximity Controls, Inc. Rotary shaft position reed switch
GB2238664A (en) * 1989-12-02 1991-06-05 Powered Showers Plc Flow switch assembly

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678485A (en) * 1969-10-06 1972-07-18 Technology Uk Shaft angle transducers
SE527101C2 (en) * 2004-05-19 2005-12-20 Volvo Lastvagnar Ab Magnetic circuit breaker arrangement and method for obtaining a differential magnetic circuit breaker
US7236072B2 (en) * 2004-12-01 2007-06-26 Teledyne Technologies Incorporated Passive magnetic latch
CN202259008U (en) * 2011-04-28 2012-05-30 通用设备和制造公司 Proximity switch component of package
CN105225888A (en) * 2014-06-11 2016-01-06 北京长城金点物联网科技有限公司 A kind of electronic apparatus combination
US10240391B2 (en) * 2015-09-24 2019-03-26 Comfortex Window Fashions Switching apparatus and system for window shadings with powered adjustment
CN114252015B (en) * 2021-12-27 2022-08-12 同济大学 Non-contact measuring method for displacement of rotary motion object

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999914A (en) * 1957-12-23 1961-09-12 Cons Electrodynamics Corp Magnetic switch
NL267079A (en) * 1960-07-15
US3117202A (en) * 1962-04-26 1964-01-07 Gen Electric Magnetic reed switches
US3233060A (en) * 1962-07-12 1966-02-01 Wintriss George Magnetically operated electric circuit control apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4831350A (en) * 1987-11-30 1989-05-16 Proximity Controls, Inc. Rotary shaft position reed switch
GB2238664A (en) * 1989-12-02 1991-06-05 Powered Showers Plc Flow switch assembly
GB2238664B (en) * 1989-12-02 1994-06-22 Powered Showers Plc Flow switch assembly

Also Published As

Publication number Publication date
JPS4522457B1 (en) 1970-07-29
DE1800593A1 (en) 1969-08-21
US3489971A (en) 1970-01-13
FR1584905A (en) 1970-01-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees