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:
Feb. 27, 1979
Filed:
Dec. 06, 1977
Applicant:
Inventor:
Dennis L Blunier, Danvers, IL (US);
Assignee:
Caterpillar Tractor Co., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21H / ; B21K / ;
U.S. Cl.
CPC ...
291483 ; 29DI / ; 29447 ; 29525 ; 7425 / ; 148145 ; 305 / ;
Abstract
A track pin has the ends thereof mounted in bores defined by respective track links. The ends of the track pin are heated above the critical temperature of the steel making up the track pin, and then quenched, whereby the ends of the track pin have increased in volume to be retained in the bores of the respective track links.