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:
Jan. 22, 2019

Filed:

Oct. 02, 2014
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventor:

John P. Marek, Sugar Grove, IL (US);

Assignee:

Caterpillar Inc., Deerfield, IL (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/02 (2006.01); B66C 23/80 (2006.01); B66C 23/78 (2006.01); E02F 5/20 (2006.01); E02F 9/08 (2006.01); E02F 9/22 (2006.01);
U.S. Cl.
CPC ...
E21B 7/024 (2013.01); B66C 23/80 (2013.01); E02F 5/20 (2013.01); E02F 9/085 (2013.01); E02F 9/2257 (2013.01); B66C 23/78 (2013.01); E21B 7/02 (2013.01); E21B 7/022 (2013.01);
Abstract

A machine comprising a frame including a front-right portion, a front-left portion, a rear-right portion, and a rear-left portion. The machine includes a first jack coupled with the front-right portion for raising or lowering the front-right portion, a second jack coupled with the front-left portion for raising or lowering the front-left portion, a third jack coupled with the rear-right portion for raising or lowering the rear-right portion, and a fourth jack coupled with the rear-left portion for raising or lowering the rear-left portion. The machine includes a front jack leveling system operatively coupled with the first jack and the second jack. The front jack leveling system controls the first jack and the second jack such that a first movement of the first jack in a first direction corresponds to a second movement of the second jack in a second direction that is opposite from the first direction.


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