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:
Nov. 26, 2002
Filed:
May. 07, 2001
George Barnard Murray, Alberton, ZA;
Caterpillar Commercial SARL, Geneva, CH;
Abstract
The invention relates to a dragline rigging system ( ) which includes a pair of drag lines ( ) connected to drag connection points ( ) on a dragline bucket ( ) for dragging the bucket through material to be excavated, a pair of hoist lines ( ) connected to trunnions ( ) on the dragline bucket for hoisting the bucket with excavated material during excavation, and a dump line ( ) for lowering the front of the bucket ( ) during dumping of excavated material. The dump line ( ) is arranged to extend from the drag lines ( ) over a pulley ( ) linked to the hoist lines ( ) and to a dump connection point ( ) on the dragline bucket ( ), and is in the form of a composite belt ( ) which includes an inner material for receiving loads and an outer protective cover for resisting wear.