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.

Date of Patent:
Mar. 17, 1981

Filed:

Jan. 10, 1979
Applicant:
Inventor:

Jan W Van Wyk, Kirkland, WA (US);

Assignee:

The Boeing Company, Seattle, WA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M / ; C10M / ;
U.S. Cl.
CPC ...
7517 / ; 7517 / ; 75231 ; 75232 ; 75233 ; 75235 ; 75246 ; 252 11 ; 252 12 ;
Abstract

A solid, self lubricating bearing material especially useful as a sliding electrical contact in vacuum environments comprising a high temperature lubricant chosen from AlPO.sub.4, BaF.sub.2, CaF.sub.2 and mixtures thereof, a lower temperature solid lubricant chosen from the chalcogenides which exhibit lubricity, & a silver matrix, the ratio of high temperature lubricant to silver being about 1:4 to 1:10, the ratio of lower temperature lubricant to silver being about 1:2 to 1:8. Filler materials up to 20% by weight chosen from aluminum oxide, silicon nitride, molybdenum silicide, metals from Group 8 of the Periodic Table, and mixtures thereof may be added to alter the hardness of the material.


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Van Wyk, Jan. (1981). Low wear high current density sliding electrical contact material (U.S. Patent No. 4256489). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4256489

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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