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:
Apr. 14, 1987
Filed:
Jun. 13, 1985
Applicant:
Inventors:
Nobuyuki Yamashita, Hitachi, JP;
Kazuo Tahara, Hitachi, JP;
Masatoshi Watanabe, Hitachi, JP;
Noriyoshi Takahashi, Hitachi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428446 ; 339 / ; 339 / ; 3392 / ;
Abstract
A sliding current collector comprises a pair of sliding members which are slidable relative to each other for supply and reception of current through sliding surfaces of the paired sliding members wherein the two sliding members are made of conductive ceramics, and the sliding surface of each of the sliding members has a film surface made of a soft conductive material which is softer than the conductive ceramics so that the sliding current collector can suppress variations in contact voltage drop across the sliding surfaces.