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:
Jul. 28, 1998
Filed:
Oct. 07, 1996
Applicant:
Inventors:
John B Walenta, Peoria, IL (US);
Chuong Q Dam, Peoria, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428469 ;
Abstract
A process for increasing the boundary lubrication of low alloy steel lubricated contacts includes providing a low alloy steel part having a non-oxidized steel substrate. An iron oxide film is formed on the substrate by low temperature arc vapor deposition and the resulting iron oxide coated low alloy steel part has greater boundary lubrication than the non-oxidized low alloy steel part.