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.
Patent No.:
Date of Patent:
Sep. 13, 2011
Filed:
Dec. 29, 2009
Eric Jackson, New Westminster, CA;
Hal Hirtz, Mission, CA;
James Dale, Coquitlam, CA;
John Jordan, Courtenay, CA;
David Eddy, Maple Ridge, CA;
Simon Mark Jackson, Vancouver, CA;
Eric Jackson, New Westminster, CA;
Hal Hirtz, Mission, CA;
James Dale, Coquitlam, CA;
John Jordan, Courtenay, CA;
David Eddy, Maple Ridge, CA;
Simon Mark Jackson, Vancouver, CA;
Other;
Abstract
The present invention is directed to an excavator that is operable in manual and automatic modes and uses state machines to effect unit operations, rotationally offset swing actuators to rotate boom and cutter head, a fail safe hydraulic system to maintain gripper pressure in the event of a malfunction of the hydraulic system, differing position and pressure control functions in the hydraulic actuators, a kinematic module to effect pitch and roll adjustments, a cutting face profile generator to generate a profile of the excavation face, and an optimization module to realize a high degree of optimization of excavator operation.