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GB1489307A - Crosspoint elements and electromagnetic coordinate selection devices utilizing the same - Google Patents

Crosspoint elements and electromagnetic coordinate selection devices utilizing the same

Info

Publication number
GB1489307A
GB1489307A GB9838/75A GB983875A GB1489307A GB 1489307 A GB1489307 A GB 1489307A GB 9838/75 A GB9838/75 A GB 9838/75A GB 983875 A GB983875 A GB 983875A GB 1489307 A GB1489307 A GB 1489307A
Authority
GB
United Kingdom
Prior art keywords
same
devices utilizing
selection devices
coordinate selection
core
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
GB9838/75A
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Publication of GB1489307A publication Critical patent/GB1489307A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H67/00—Electrically-operated selector switches
    • H01H67/22—Switches without multi-position wipers
    • H01H67/30—Co-ordinate-type selector switches with field of co-ordinate coil acting directly upon magnetic leaf spring or reed-type contact member

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetically Actuated Valves (AREA)
  • Electromagnets (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Structure Of Telephone Exchanges (AREA)

Abstract

1489307 Remanent relays NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 10 March 1975 [30 April 1974] 9838/75 Heading H1N The reed elements of a reed relay for use in a crosspoint array each comprise a core of a first magnetic metal and a surrounding sheath of a second magnetic metal, the two said magnetic metals having different retentivity. The crosssectional areas of the core and sheath may be substantially equal. In a cross point arrangement common row 15, 151 and column 16, 16<SP>1</SP> coils may be divided and series or parallel connected.
GB9838/75A 1974-04-30 1975-03-10 Crosspoint elements and electromagnetic coordinate selection devices utilizing the same Expired GB1489307A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49048555A JPS50141211A (en) 1974-04-30 1974-04-30

Publications (1)

Publication Number Publication Date
GB1489307A true GB1489307A (en) 1977-10-19

Family

ID=12806614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9838/75A Expired GB1489307A (en) 1974-04-30 1975-03-10 Crosspoint elements and electromagnetic coordinate selection devices utilizing the same

Country Status (7)

Country Link
US (1) US3928828A (en)
JP (1) JPS50141211A (en)
CA (1) CA1011006A (en)
DE (1) DE2513235C3 (en)
GB (1) GB1489307A (en)
NL (1) NL167270C (en)
SE (1) SE406388B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182999A (en) * 1978-05-11 1980-01-08 Bell Telephone Laboratories, Incorporated Reed spring relay construction
US6262647B1 (en) * 2000-10-23 2001-07-17 William P. Rogers Magnetic reed switching array
JP5365655B2 (en) * 2011-03-16 2013-12-11 株式会社安川電機 Reed switch
CN104217893B (en) * 2014-09-26 2019-09-06 敬德强 High current magnetic reed switch

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3377576A (en) * 1965-05-03 1968-04-09 Metcom Inc Gallium-wetted movable electrode switch
US3431519A (en) * 1966-09-29 1969-03-04 Nippon Telegraph & Telephone Electromagnet switching device in coordinate arrays

Also Published As

Publication number Publication date
DE2513235A1 (en) 1975-11-06
US3928828A (en) 1975-12-23
NL167270B (en) 1981-06-16
CA1011006A (en) 1977-05-24
SE7502094L (en) 1975-10-31
DE2513235B2 (en) 1977-07-14
NL7502089A (en) 1975-11-03
JPS50141211A (en) 1975-11-13
DE2513235C3 (en) 1978-03-09
NL167270C (en) 1981-11-16
SE406388B (en) 1979-02-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee