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:
Nov. 08, 1977
Filed:
May. 28, 1976
Applicant:
Inventor:
Walter M Shaffer, Peoria, IL (US);
Assignee:
Caterpillar Tractor Co., Peoria, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; F16H / ; F16H / ;
U.S. Cl.
CPC ...
74745 ; 74732 ; 74200 ;
Abstract
A drive system for a vehicle includes a fluid pump which drives a fluid motor which in turn drives a variable speed transmission of the type including an input toroidal disc, an output toroidal disc, and wheel means rollingly connecting the input and output discs, with the output disc being used to drive the vehicle.
Shaffer, Walter. (1977). Vehicle drive (U.S. Patent No. 4056989). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4056989
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile