EP0082647A3 - Light duty corrosion resistant contacts - Google Patents

Light duty corrosion resistant contacts Download PDF

Info

Publication number
EP0082647A3
EP0082647A3 EP82306608A EP82306608A EP0082647A3 EP 0082647 A3 EP0082647 A3 EP 0082647A3 EP 82306608 A EP82306608 A EP 82306608A EP 82306608 A EP82306608 A EP 82306608A EP 0082647 A3 EP0082647 A3 EP 0082647A3
Authority
EP
European Patent Office
Prior art keywords
inlay
inlays
base metal
inlaid
corrosion resistant
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.)
Ceased
Application number
EP82306608A
Other languages
German (de)
French (fr)
Other versions
EP0082647A2 (en
Inventor
David James Anderton
Stephen Munn
John Whitmarsh
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.)
Johnson Matthey PLC
Original Assignee
Johnson Matthey 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 Johnson Matthey PLC filed Critical Johnson Matthey PLC
Publication of EP0082647A2 publication Critical patent/EP0082647A2/en
Publication of EP0082647A3 publication Critical patent/EP0082647A3/en
Ceased 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
    • H01H1/021—Composite material
    • H01H1/023—Composite material having a noble metal as the basic material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Contacts (AREA)

Abstract

Inlaid base metal or alloy bodies suitable for use as or from which may be fabricated, electrical contact elements in which the contact zones are constituted by the inlay or inlays or portions thereof, the inlay or inlays being formed from one or more cerrosive resistant alloys consisting of, apart from inpurities, gold, silver and one or more platinum group metals with, optionally minor proportions of one or more of copper nickel, and indium. In addition to the expected intrinsic anti-corrosive properties whereby low contact resistance can be maintained, the alloys referred to surprisingly also exhibit a tendency to inhibit 'edge creep' from the boundary between the base metal or alloy and the inlay, an effect which has been the most prolific cause of failure with conventional inlaid contacts.
EP82306608A 1981-12-10 1982-12-10 Light duty corrosion resistant contacts Ceased EP0082647A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8137209 1981-12-10
GB8137209 1981-12-10

Publications (2)

Publication Number Publication Date
EP0082647A2 EP0082647A2 (en) 1983-06-29
EP0082647A3 true EP0082647A3 (en) 1983-07-27

Family

ID=10526505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82306608A Ceased EP0082647A3 (en) 1981-12-10 1982-12-10 Light duty corrosion resistant contacts

Country Status (3)

Country Link
EP (1) EP0082647A3 (en)
JP (1) JPS58502154A (en)
WO (1) WO1983002195A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3420231C1 (en) * 1984-05-30 1985-01-03 Degussa Ag, 6000 Frankfurt Silver-rich materials for low-voltage contacts
JP2000276960A (en) * 1999-03-29 2000-10-06 Nec Corp Combination electric contact, and relay and switch using it

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2226944A (en) * 1938-10-27 1940-12-31 Bell Telephone Labor Inc Method of bonding dissimilar metals
DE1078774B (en) * 1954-03-02 1960-03-31 Western Electric Co Electric contact
DE2540956A1 (en) * 1975-09-13 1977-04-07 Heraeus Gmbh W C GOLD ALLOY AS A MATERIAL FOR ELECTRICAL CONTACTS
DE2637807A1 (en) * 1976-08-21 1978-02-23 Heraeus Gmbh W C GOLD ALLOY FOR ELECTRICAL CONTACTS
EP0027520A1 (en) * 1979-10-08 1981-04-29 W.C. Heraeus GmbH Electrical weak-current contact

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2226944A (en) * 1938-10-27 1940-12-31 Bell Telephone Labor Inc Method of bonding dissimilar metals
DE1078774B (en) * 1954-03-02 1960-03-31 Western Electric Co Electric contact
DE2540956A1 (en) * 1975-09-13 1977-04-07 Heraeus Gmbh W C GOLD ALLOY AS A MATERIAL FOR ELECTRICAL CONTACTS
DE2637807A1 (en) * 1976-08-21 1978-02-23 Heraeus Gmbh W C GOLD ALLOY FOR ELECTRICAL CONTACTS
EP0027520A1 (en) * 1979-10-08 1981-04-29 W.C. Heraeus GmbH Electrical weak-current contact

Also Published As

Publication number Publication date
EP0082647A2 (en) 1983-06-29
WO1983002195A1 (en) 1983-06-23
JPS58502154A (en) 1983-12-15

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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PUAL Search report despatched

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AK Designated contracting states

Designated state(s): DE FR GB IT

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Effective date: 19840114

STAA Information on the status of an ep patent application or granted ep patent

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18R Application refused

Effective date: 19860726

RIN1 Information on inventor provided before grant (corrected)

Inventor name: ANDERTON, DAVID JAMES

Inventor name: WHITMARSH, JOHN

Inventor name: MUNN, STEPHEN