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:
Mar. 27, 1990
Filed:
Dec. 21, 1988
Applicant:
Inventors:
Richard L Lauritsen, Hoffman Estates, IL (US);
Conrad W Pastwa, West Chicago, IL (US);
Daniel A Wycklendt, Milwaukee, WI (US);
Assignee:
Eaton Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01H / ; H01H / ;
U.S. Cl.
CPC ...
200 / ; 200237 ; 200288 ;
Abstract
A relatively quiet switch assembly having a plurality of spaced contact sets with snap-acting transfer actuation and interconnected by a common bus plate. The bus plate is formed of a swandwich construction having a thin (0.001 Inch) core layer of visco-elastic polymer and thicker layers of copper bonded to both sides of the core layer for sound attenuation upon contact transfer. Where the bus plate is formed to a right-angle bend of R/t-1.2 the inner layer is formed of half-hard material and the outer layer of fully annealed material.