(19)
(11) EP 0 323 057 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.07.1990 Bulletin 1990/30

(43) Date of publication A2:
05.07.1989 Bulletin 1989/27

(21) Application number: 88311597.4

(22) Date of filing: 07.12.1988
(51) International Patent Classification (IPC)4: H01H 1/06, H01H 13/10, H01H 50/54
(84) Designated Contracting States:
DE FR GB

(30) Priority: 24.12.1987 US 138010

(71) Applicant: TRW INC.
Lyndhurst Ohio 44124 (US)

(72) Inventor:
  • Smolley, Robert
    Porteuguese Bend California 90274 (US)

(74) Representative: Allden, Thomas Stanley et al
A.A. THORNTON & CO. Northumberland House 303-306 High Holborn
London WC1V 7LE
London WC1V 7LE (GB)


(56) References cited: : 
   
       


    (54) Improved electrical switch


    (57) An improved electrical switch providing a low electrical-resistance connection and a simple, inherent wiping action of the contact surfaces. The improved electrical switch includes a pair of electri­cal contacts, an insulating board disposed between the electrical contacts, and a switch mechanism. The insulating board has a wadded-wire connector element disposed in an opening in the insulating board at a position corresponding to the electrical contacts. The wadded-wire connector element makes electrical contact at multiple points when compressed against a contact surface by the switch mechanism, thus wiping the contact surfaces free of any film or surface contamination and providing a low electrical-resis­tance connection.







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