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:
Apr. 30, 1996
Filed:
Oct. 12, 1994
Applicant:
Inventor:
Larry G Eftefield, Edelstein, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62D / ;
U.S. Cl.
CPC ...
305 31 ; 305 32 ; 267175 ; 267289 ;
Abstract
A recoil mechanism of an endless track of a material working machine has first and second springs of differing compression rates. After loads of impact are absorbed by compression of one of the springs, the load is shared by the other spring and a hydraulic cylinder.