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:
Jan. 24, 1984
Filed:
Apr. 23, 1982
Applicant:
Inventors:
Stephen G Layciak, Brighton Township, Beaver County, PA (US);
Robert J Johnston, Patterson Heights, PA (US);
Dominic Colista, Harmony Township, Beaver County, PA (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 200 / ;
Abstract
There is provided by this invention an interlock mechanism for converting two momentary electric control switches to the maintained control mode that is generally comprised of a single extension spring biasing the interlock mechanism in its last selected operating position.