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:
Aug. 16, 1977
Filed:
Dec. 24, 1975
Applicant:
Inventors:
Glenn M Haslett, Peoria, IL (US);
Dennis L Blunier, Danvers, IL (US);
Assignee:
Caterpillar Tractor Co., Peoria, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60S / ; B62D / ;
U.S. Cl.
CPC ...
305 11 ; 305 57 ; 308239 ;
Abstract
A track chain includes a plurality of track pin bushings as is well known, to seat in recesses defined by a drive sprocket. Each track pin bushing defines a plurality of angled protrusions which act as wear surfaces between the bushing and the sprocket, and also act to force foreign matter from recesses of the sprocket in which bushings are seatable.