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:

Dec. 19, 2017
Applicant:

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

Inventors:

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

Gregory Barton Moebs, Avon, IN (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/04 (2010.01); F16H 1/22 (2006.01); B60K 17/10 (2006.01); B60K 17/346 (2006.01); B60K 17/344 (2006.01); F15B 1/26 (2006.01); B60K 17/04 (2006.01); B60K 17/342 (2006.01); F16D 55/40 (2006.01); F16D 121/16 (2012.01);
U.S. Cl.
CPC ...
F16H 57/0457 (2013.01); B60K 17/043 (2013.01); B60K 17/105 (2013.01); B60K 17/342 (2013.01); B60K 17/344 (2013.01); B60K 17/346 (2013.01); F15B 1/265 (2013.01); F16D 55/40 (2013.01); F16H 1/22 (2013.01); F16H 57/045 (2013.01); F16H 57/0441 (2013.01); F16D 2121/16 (2013.01); Y10T 137/86308 (2015.04); Y10T 137/86324 (2015.04);
Abstract

A hydraulic fluid expansion tank is located inside a housing of a drive device and includes an upper check valve and a lower check valve in communication with a sump located within the drive device and an internal volume of the expansion tank. The tank may also include a vent opening in communication with a vent of the drive device that is in communication with atmospheric pressure.


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