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:
Jul. 11, 2000
Filed:
Jun. 18, 1999
Applicant:
Inventors:
Larry Alan Johnson, Burlington, IA (US);
David Langsford Collins, Bolingbrook, IL (US);
Assignee:
Case Corporation, Racine, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ;
U.S. Cl.
CPC ...
477 97 ; 477900 ; 172-2 ;
Abstract
In a vehicle, such as a construction vehicle, which has a payload of variable but significant weight with respect to the empty weight of the vehicle, a sensor senses the weight of the payload and transmits a signal representative thereof to a processor. The processor modulates clutch transmission fluid pressure as a function of the payload, permitting more uniform operating characteristics. The sensor can be a hydraulic fluid pressure sensor installed in a hydraulic cylinder used to lift a payload bucket arm.