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:
Mar. 24, 2015
Filed:
Dec. 23, 2011
Jesse L. Probst, Stratsburg, IL (US);
Eric S. Phanco, Decatur, IL (US);
Tyler J. Hermann, Sullivan, IL (US);
Joseph P. Niemerg, Dieterich, IL (US);
Shane A. Deters, Mattoon, IL (US);
Jesse L. Probst, Stratsburg, IL (US);
Eric S. Phanco, Decatur, IL (US);
Tyler J. Hermann, Sullivan, IL (US);
Joseph P. Niemerg, Dieterich, IL (US);
Shane A. Deters, Mattoon, IL (US);
Hydro-Gear Limited Partnership, Sullivan, IL (US);
Abstract
A hydraulic drive device having a pump and motor is disclosed, where the pump swash plate includes a pair of structural ribs and the housing has a pair of thrust ribs on an inner surface. Only one thrust rib is in contact with one of the structural ribs at a time, to permit arcuate rotation of the swash plate while limiting axial movement of the swash plate. The axes of rotation of the swash plate trunnion, input shaft and output shaft are in a common plane. A rotary bypass shaft for engaging transmission check plugs includes an external bypass arm. A pair of detents are externally formed on the housing, and the bypass arm includes separate pairs of openings to engage the pair of detents when the bypass arm is in different positions.