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:
Sep. 14, 2004
Filed:
Jan. 22, 2003
Applicant:
Inventor:
Jiubo Ma, Dunlap, IL (US);
Assignee:
Caterpillar Inc, Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 3/500 ; F16D 4/706 ;
U.S. Cl.
CPC ...
F16D 3/500 ; F16D 4/706 ;
Abstract
A multiple coupling fan drive provides power to a fan in a cooling system. An input shaft drives a constant viscous coupling and a variable viscous coupling, both of which are operative to drive the fan.