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:
May. 21, 1991
Filed:
Jun. 07, 1990
Applicant:
Inventors:
John F Ruggles, Phoenix, AZ (US);
Gary L Boyd, Tempe, AZ (US);
Assignee:
Allied-Signal, Inc., Morris Township, Morris County, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
384100 ; 384118 ; 3849071 ;
Abstract
A non-lubricated, gas film load support bearing wherein the rotating shaft is of ceramic material such as silicon nitride, and the surrounding bearing segments are of carbon-graphite material. The carbon-graphite surface is configured with lands and depressions for self-generation of the gas film from surrounding, hot, oxygen-bearing gases.