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. 28, 2009
Filed:
Jun. 19, 2007
Lonnie E. Holder, Sullivan, IL (US);
Robert E. Trimble, Sullivan, IL (US);
Michael Todd, Sullivan, IL (US);
Lonnie E. Holder, Sullivan, IL (US);
Robert E. Trimble, Sullivan, IL (US);
Michael Todd, Sullivan, IL (US);
Hydro-Gear Limited Partnership, Sullivan, IL (US);
Abstract
A dual pump apparatus for use on a vehicle or industrial application and having a pair of hydraulic pumps that are disposed in separate chambers within a housing. A pair of input shafts are disposed within the housing to drive the respective hydraulic pumps and one of the input shafts engages a prime mover. A charge pump may be mounted on an end cap, and trunnion arms for controlling the hydraulic pumps may extend out of opposite sides of the housing. An auxiliary pump may also be mounted on one of the input shafts and may be located either at the input end thereof or on the opposite side of the housing.