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:
Jan. 10, 1995
Filed:
Mar. 25, 1993
Applicant:
Inventors:
Michael F Coffman, Metamora, IL (US);
Paul E Jantz, Peoria, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K / ; F16D / ;
U.S. Cl.
CPC ...
477175 ; 1921 / ;
Abstract
An electrohydraulic control device for a drive train of a vehicle is provided. The drive train includes an engine, a transmission, a source of pressurized fluid, and an input clutch connected between the engine and the transmission. The control device senses the rotational output speed of the engine and responsively engages and disengages the input clutch as a function of the engine speed.