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:
Mar. 22, 1977
Filed:
Feb. 23, 1976
Applicant:
Inventor:
Roger O Bjerk, Edelstein, IL (US);
Assignee:
Caterpillar Tractor Co., Peoria, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F16J / ;
U.S. Cl.
CPC ...
277 75 ;
Abstract
An air bearing is coaxially mounted around a rotatable shaft, such as an engine crankshaft, by means of a flexible ring of open cell foam. Air flows through the foam cell ring to the bearing face. In this manner, continuous streams of air will flow past the seal to prevent oil or contaminants from moving in a direction opposite to the air flow direction.