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:
Dec. 25, 1979
Filed:
May. 05, 1978
Applicant:
Inventor:
William J Lichtenberger, Murrysville, PA (US);
Assignee:
Westinghouse Air Brake Company, Swissvale, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ; H01H / ;
U.S. Cl.
CPC ...
200246 ; 200263 ; 200264 ; 200265 ; 200275 ;
Abstract
A fail-safe multiple transfer contact assembly including a plurality of front, back and heel contact elements. The contact elements include elongated leaf spring members which are fixed to a molded insulative contact block. A silver contact button is rivoted to the free ends of the front and back leaf spring members while a silver impregnated carbon contact block is soldered to the free end of the heel leaf spring member so that neither the front and back contacts cannot become welded to the heel contact.