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. 07, 2009
Filed:
Oct. 08, 2007
Applicants:
Lonnie E. Holder, Sullivan, IL (US);
Raymond Hauser, Sullivan, IL (US);
Inventors:
Lonnie E. Holder, Sullivan, IL (US);
Raymond Hauser, Sullivan, IL (US);
Assignee:
Hydro-Gear Limited Partnership, Sullivan, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 39/00 (2006.01); F16D 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A system and method for electronically controlling the displacement of hydraulic pumps, transmissions or transaxles. A moveable swash plate is cooperable with a rotatable hydraulic pump for controlling the output thereof, and a rotatable trunnion arm is coupled to the moveable swash plate. A pair of switches may be mounted in separate locations to detect the position of a control arm used to rotate the trunnion arm. The control arm may be connected to an electronic actuation drive used to electronically control the rotatable control arm.