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:
Oct. 27, 2015

Filed:

Nov. 22, 2011
Applicant:

Magomed O. Gabibulayev, Dunlap, IL (US);

Inventor:

Magomed O. Gabibulayev, Dunlap, IL (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 13/02 (2006.01); F15B 21/08 (2006.01); E02F 9/08 (2006.01); E02F 9/20 (2006.01); E02F 9/22 (2006.01); F15B 11/044 (2006.01);
U.S. Cl.
CPC ...
E02F 9/0883 (2013.01); E02F 9/2029 (2013.01); E02F 9/2095 (2013.01); E02F 9/2203 (2013.01); E02F 9/2217 (2013.01); F15B 11/044 (2013.01); F15B 2211/3052 (2013.01); F15B 2211/30565 (2013.01); F15B 2211/31558 (2013.01); F15B 2211/353 (2013.01); F15B 2211/6313 (2013.01); F15B 2211/665 (2013.01); F15B 2211/7053 (2013.01); F15B 2211/761 (2013.01);
Abstract

A control system for a work implement on a machine is disclosed including a first hydraulic circuit, a second hydraulic circuit, and a controller. The first hydraulic circuit includes a hydraulic cylinder assembly, a pressurized fluid source, and a fluid tank. The hydraulic cylinder assembly includes a head end, a rod end, a cylinder, and a rod. The pressurized fluid source and the fluid tank are selectively connected to the head end or the rod end. The second hydraulic circuit includes a valve configured to receive a connection to tank signal and selectively connect the head end or the rod end to the fluid tank. The controller is configured to generate the connection to tank signal.


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