The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 1981
Filed:
Mar. 29, 1979
Moreland P Bennett, Hickory, NC (US);
Edward A Vrabel, Hickory, NC (US);
General Electric Company, Philadelphia, PA (US);
Abstract
One form of the method includes disposing a silver contact pad on only a portion of a metal body. The joint between the silver contact pad and the metal body includes a metal which is metallurgically compatible with the silver contact pad and with the metal body. Heat and pressure are applied to the joint through welding electrodes. This joins the contact pad to the metal body and forms a metallurgical bond therebetween. In one embodiment, the metal body comprises copper and the compatible metal comprises tin. The welding electrodes may include shaping surfaces thereon so that the contact pad can be joined to the metal body while substantially simultaneously shaping the combination of the contact pad and the metal body. The resultant contact pad is arc-resistant,i.e., resistant to erosion, and has a typical thickness in the range of from about 0.0005' to about 0.010'.