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GB1254249A - Switching device - Google Patents

Switching device

Info

Publication number
GB1254249A
GB1254249A GB41104/70A GB4110470A GB1254249A GB 1254249 A GB1254249 A GB 1254249A GB 41104/70 A GB41104/70 A GB 41104/70A GB 4110470 A GB4110470 A GB 4110470A GB 1254249 A GB1254249 A GB 1254249A
Authority
GB
United Kingdom
Prior art keywords
inner layer
metal
ruthenium
thick
aug
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
GB41104/70A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries 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
Priority claimed from NL6913194A external-priority patent/NL6913194A/en
Priority claimed from NL7008388A external-priority patent/NL7008388A/en
Application filed by Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1254249A publication Critical patent/GB1254249A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/0201—Materials for reed contacts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing

Landscapes

  • Contacts (AREA)
  • Manufacture Of Switches (AREA)
  • Conductive Materials (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)

Abstract

1,254,249. Switch contacts. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 26 Aug., 1970 [29 Aug., 1969; 10 June, 1970], No. 41104/70. Heading H1N. [Also in Division C7] An electric switch contact such as is used in a sealed magnetic reed contact unit has at least two surface layers, the outer layer being of metal-and from 0À1 to 5 Ám. (10<SP>-6</SP> meter) thick and an inner layer including, at least 1% by volume of a non-metal. The inner layer may be from 0À001 to 1 Ám. thick andconsist of carbon or graphite or phosphorous or sulphur or silicon or a metal oxide and the outer layer may be ruthenium or rhodium. Alternatively the inner layer may be at least 0À1 Ám thick and consist of a finely divided non-metal in a metal such as gold having a melting point of less than 1500‹ C. The inner layer may be coated on a further inner layer of ruthenium which may be coated on further layers of carbon and ruthenium.
GB41104/70A 1969-08-29 1970-08-26 Switching device Expired GB1254249A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL6913194A NL6913194A (en) 1969-08-29 1969-08-29 Snap contact surfaces for sealed-in - minaturised devices
NL7008388A NL7008388A (en) 1970-06-10 1970-06-10 Coating for relay contacts

Publications (1)

Publication Number Publication Date
GB1254249A true GB1254249A (en) 1971-11-17

Family

ID=26644467

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41104/70A Expired GB1254249A (en) 1969-08-29 1970-08-26 Switching device

Country Status (11)

Country Link
US (1) US3663777A (en)
JP (1) JPS509338B1 (en)
AT (1) AT306839B (en)
BE (1) BE755409A (en)
CA (1) CA939712A (en)
CH (1) CH521662A (en)
DE (1) DE2038929B2 (en)
ES (1) ES383065A1 (en)
FR (1) FR2059741B1 (en)
GB (1) GB1254249A (en)
SE (1) SE355893B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2751790C1 (en) * 2020-11-26 2021-07-16 Акционерное общество "Рязанский завод металлокерамических приборов" (АО "РЗМКП") Method for manufacturing protective coating of contact parts of reed switches

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2303587C3 (en) * 1973-01-25 1978-05-03 Oki Electric Industry Co., Ltd., Tokio Reed switch and process for its manufacture
US3857175A (en) * 1973-01-25 1974-12-31 Oki Electric Ind Co Ltd Method of manufacturing reed switches with oxidized rhodium contacts
NL169530C (en) * 1973-05-09 1982-07-16 Philips Nv SWITCHING DEVICE WITH TONGUE CONTACTS.
GB1517702A (en) * 1974-09-19 1978-07-12 Fujitsu Ltd Electrical contact
US4074090A (en) * 1976-05-07 1978-02-14 Toyota Jidosha Kogyo Kabushiki Kaisha Distributor rotor electrode having silicon coating for suppressing peaks of capacity discharge current
US4307360A (en) * 1979-08-30 1981-12-22 Bell Telephone Laboratories, Incorporated Sealed electrical contacts
DE3203037C2 (en) * 1982-01-29 1984-03-08 Siemens AG, 1000 Berlin und 8000 München Contact element and process for its manufacture
US4607148A (en) * 1985-08-08 1986-08-19 General Electric Company Change of state contact material for electric circuit interrupters
GB2298316B (en) * 1995-02-23 1998-12-16 Standex Int Corp Surface mount electronic reed switch component
DE19530512C1 (en) * 1995-08-18 1996-10-17 Siemens Ag Electrical layered contact element used in weak current relays
GB2342509A (en) * 1998-10-05 2000-04-12 Standex Int Corp Surface mount reed switch having transverse feet formed from leads

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734979A (en) * 1956-02-14 Brazing tips
US2070321A (en) * 1934-03-30 1937-02-09 Westinghouse Electric & Mfg Co Electrical contact for rectifiers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2751790C1 (en) * 2020-11-26 2021-07-16 Акционерное общество "Рязанский завод металлокерамических приборов" (АО "РЗМКП") Method for manufacturing protective coating of contact parts of reed switches

Also Published As

Publication number Publication date
CA939712A (en) 1974-01-08
ES383065A1 (en) 1973-04-16
AT306839B (en) 1973-04-25
US3663777A (en) 1972-05-16
DE2038929A1 (en) 1971-03-11
FR2059741A1 (en) 1971-06-04
CH521662A (en) 1972-04-15
FR2059741B1 (en) 1973-01-12
SE355893B (en) 1973-05-07
DE2038929B2 (en) 1978-03-16
BE755409A (en) 1971-03-01
JPS509338B1 (en) 1975-04-11

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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