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:
Aug. 17, 2010
Filed:
Jan. 21, 2009
Applicants:
Kenneth Kubo, Milwaukie, OR (US);
Steven D Hyde, Portland, OR (US);
Aaron B Lian, Waterloo, BE;
Inventors:
Assignee:
ESCO Corporation, Portland, OR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dragline bucket includes a bottom wall, a pair of sidewalls and a rear wall that collectively define a cavity. The sidewalls each have a large downward taper of at least about 7 degrees in at least its forward area. In an alternative embodiment, the sidewalls each have an upward taper in its rearward area which alleviates the need for a spreader bar. The dragline bucket collects earthen material with minimal disruption of the material.