GB837938A - Miniature electric switching devices - Google Patents

Miniature electric switching devices

Info

Publication number
GB837938A
GB837938A GB24927/58A GB2492758A GB837938A GB 837938 A GB837938 A GB 837938A GB 24927/58 A GB24927/58 A GB 24927/58A GB 2492758 A GB2492758 A GB 2492758A GB 837938 A GB837938 A GB 837938A
Authority
GB
United Kingdom
Prior art keywords
magnetic
contacts
arms
ring
contact
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
GB24927/58A
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.)
Raytheon Co
Original Assignee
Hughes Aircraft 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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of GB837938A publication Critical patent/GB837938A/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
    • H01H36/0073—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/287—Details of the shape of the contact springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H01H2001/545—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force having permanent magnets directly associated with the contacts

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Contacts (AREA)
  • Manufacture Of Switches (AREA)

Abstract

837,938. Magnetic switches; contact-members for switches. HUGHES AIRCRAFT CO. Aug 1, 1958 [Aug. 26, 1957], No. 24927/58. Class 38 (5). A magnetically-operable contact device 10 has counterbalanced magnetic contacts 30 on non-magnetic resilient arms 25. Connectors 20 are sealed in a glass or other insulating body 22, in a base 15 and the ends 26 of the arms 25 are wrapped around and spot-welded to ends 23 of the connectors 20. A cover 43 of non-magnetic material such as silver, is welded to an annular ring 18 of the base 15 so as to form a sealed structure which may be filled with inert gas such as nitrogen. The contacts each comprise a magnetic head 31 and shank portion 32 with a magnetic counterweight ring 34. The end 37 of the shank 32 is turned outward to retain the ring 34 and secure the contact on the arm 25. The contacts may be of an iron-nickel alloy coated with non- magnetic layers of nickel 41 and rhodium 42. The arms 25 may be beryllium copper. As shown in Fig. 1, a number of devices 10 may be mounted in a housing 11 and operated by permanent magnets 14 on a rotatable shaft 12. As shown in Fig. 3, the contacts 30 are spaced from the casing 43 and magnet 14 so as to be attracted toward each other rather than to the magnet poles.
GB24927/58A 1957-08-26 1958-08-01 Miniature electric switching devices Expired GB837938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US680098A US2932703A (en) 1957-08-26 1957-08-26 Miniature switch mechanism

Publications (1)

Publication Number Publication Date
GB837938A true GB837938A (en) 1960-06-15

Family

ID=24729667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24927/58A Expired GB837938A (en) 1957-08-26 1958-08-01 Miniature electric switching devices

Country Status (6)

Country Link
US (1) US2932703A (en)
BE (1) BE570551A (en)
CH (1) CH358493A (en)
FR (1) FR1209451A (en)
GB (1) GB837938A (en)
NL (1) NL230798A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051806A (en) * 1959-05-18 1962-08-28 Magnavox Co Switch assembly
US3060291A (en) * 1960-02-01 1962-10-23 Clare & Co C P Switching assembly
US3086095A (en) * 1960-02-08 1963-04-16 Magnavox Co Switch assembly
US3069907A (en) * 1960-07-22 1962-12-25 James E Eddy Magnetic type current meter
US3151226A (en) * 1962-01-11 1964-09-29 Phillips Petroleum Co Plural magnetic reed switch
US3158710A (en) * 1962-01-29 1964-11-24 Stewart Warner Corp Code mechanism having a permanent magnet slidably received in an aperture in a magnetic member
US3233060A (en) * 1962-07-12 1966-02-01 Wintriss George Magnetically operated electric circuit control apparatus
US3247343A (en) * 1963-10-22 1966-04-19 American Mach & Foundry Magnetically operated switches
DE2516193C2 (en) * 1975-04-14 1984-09-06 Vdo Adolf Schindling Ag, 6000 Frankfurt Speed-frequency converter
CA1057801A (en) * 1975-12-25 1979-07-03 Yuji Hayashi Electromagnetically operated switch with a permanent magnet armature
US5164556A (en) * 1990-08-23 1992-11-17 Takata Corporation Acceleration sensor
CN202259008U (en) * 2011-04-28 2012-05-30 通用设备和制造公司 Proximity switch component of package

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2285352A (en) * 1939-06-10 1942-06-02 Western Electric Co Electrical contact
GB536695A (en) * 1939-12-04 1941-05-23 Siemens Electric Lamps & Suppl Improvements relating to electromagnetic relays
US2265297A (en) * 1940-05-08 1941-12-09 Westinghouse Electric & Mfg Co Contact device
US2542668A (en) * 1946-08-14 1951-02-20 Bell Telephone Labor Inc Mercury type relay
US2570315A (en) * 1948-07-07 1951-10-09 Ford Motor Co Magnetic operated switch

Also Published As

Publication number Publication date
CH358493A (en) 1961-11-30
FR1209451A (en) 1960-03-02
US2932703A (en) 1960-04-12
NL230798A (en)
BE570551A (en)

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