Title: Method of making an electrical contact element

Abstract: The contact element is produced by sonic or ultrasonic welding one or more contact pieces onto a carrier, an intermediate layer in the form of a grinding powder being interposed between the contact piece and the carrier prior to such welding in order to assist in the welding of contact pieces made of material which would otherwise be difficult to weld.

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Inventors: Stoeckel, Dieter (Birkenfeld, DE, US)

Application Number: 830318
Filing Date: 1977-09-02
Publication_date: 1978-10-10
Assignee: G. Rau (Pforzheim, DE1)
Primary Class(es): 228/111 29/878
Other Classes:
US Patent Ref:

3531852	Oct, 1970	Slemmons et al.	228/110.
3733685	May, 1973	Kauppila	228/110.
3874963	Apr, 1975	Barger	228/110.
3926357	Dec, 1975	Martrisian	228/110.
4019876	Apr, 1977	Stockel et al.	228/110.

Other Refs: 1,564,572

Mar, 1970	DE

Primary Examiner: Smith, Al Lawrence
Assistant Examiner: Ramsey, K. J.
Attorney: Wenderoth, Lind & Ponack