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:
Oct. 20, 1992
Filed:
Apr. 23, 1991
Takeshi Kojima, Aichi, JP;
Sugako Otake, Aichi, JP;
Eigo Mukasa, Fujisawa, JP;
Kikuo Hosaki, Tokyo, JP;
Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi, JP;
Abstract
The present invention provides the lubricant for an electrical sliding contactor having excellent properties which comprises a synthetic wax or a grease composition comprising specific base oil and thickner and the defined amounts of specific additives, i.e. specific n-type semiconductor and/or the substance which changes into said semiconductor and alkylphosphoric acid surfactant. The lubricant according to the present invention can be applied effectively to an electrical sliding contactor for high current such as a slide contact of a sliding switch employed under more than 12 volts, sliding parts of trolley wire for an electric train and the like.