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. 24, 2015

Filed:

Jan. 23, 2013
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

David Thomas Bienfang, Racine, WI (US);

Carl Delbert Gilmore, South Milwaukee, WI (US);

Frank Richard Szpek, Jr., Franklin, WI (US);

Assignee:

Caterpillar Inc., Peoria, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/30 (2006.01); E02F 3/407 (2006.01);
U.S. Cl.
CPC ...
E02F 3/4075 (2013.01);
Abstract

An actuator system for a machine includes a hydraulic actuator connected to a dipper of the machine, and a hydraulic system fluidly connected to the actuator and configured to selectively direct fluid to the actuator. A component of the hydraulic system is mounted on the dipper. The system also includes an overcenter link coupled to a door of the dipper and biased to maintain the door in a closed position. The actuator is operable to move the overcenter link in a first direction, thereby transitioning the door from the closed position to an open position.


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