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:
Jul. 08, 2003
Filed:
Apr. 12, 2001
Applicant:
Inventors:
Bruce A Leslie, Redbank, AU;
Craig W Broadbent, Sunnybank Hills, AU;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E02F 3/48 ; E02F 3/52 ;
U.S. Cl.
CPC ...
E02F 3/48 ; E02F 3/52 ;
Abstract
A dragline excavation bucket control system including a pair of hoist ropes and a drag rope, the hoist ropes being coupled adjacent opposite ends of the bucket. The hoist ropes are supported on spaced sheaves on an excavation boom whereby the hoist ropes extending between the boom and bucket are substantially parallel and the boom support points and bucket attachment points for the hoist ropes are controllable to maintain an optimal carry attitude for a bucket when in use.