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.

Date of Patent:
Feb. 11, 2020

Filed:

Oct. 16, 2017
Applicant:

Hydro-gear Limited Partnership, Sullivan, IL (US);

Inventors:

Jesse L. Probst, Strasburg, IL (US);

Eric S. Phanco, Plainfield, IN (US);

Joseph P. Niemerg, Dieterich, IL (US);

Shane A. Deters, Charleston, IL (US);

Assignee:

Hydro-Gear Limited Partnership, Sullivan, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 1/20 (2006.01); F01B 3/00 (2006.01); F04B 1/2078 (2020.01); F04B 1/2035 (2020.01); F15B 21/042 (2019.01); F01B 3/02 (2006.01); F15B 11/08 (2006.01); F16D 31/02 (2006.01); F15B 21/045 (2019.01);
U.S. Cl.
CPC ...
F04B 1/2078 (2013.01); F01B 3/0032 (2013.01); F01B 3/02 (2013.01); F04B 1/2035 (2013.01); F15B 11/08 (2013.01); F15B 21/042 (2013.01); F15B 21/045 (2013.01); F16D 31/02 (2013.01);
Abstract

A drive device includes a housing forming a sump. A pump and motor are mounted on a center section having a porting system and a pair of ports with check plugs disposed therein. A bypass arm is engaged to one end of a bypass shaft external to the housing and rotates the bypass shaft to selectively cause engagement fingers to move each check plug to an open position. A housing projection is contacted by the bypass arm to selectively limit rotation thereof. The axes of rotation of a swash plate trunnion shaft, a pump input shaft and a motor output shaft may all be disposed in a single plane. The input shaft is supported by a housing bearing and an opening in the center section and is restrained from axial movement by the bearing and a thrust surface on the center section.


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