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:
Apr. 03, 2001
Filed:
May. 13, 1999
Applicant:
Inventor:
Thomas Anthony Meyers, Queensland 4740, AU;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/58 ;
U.S. Cl.
CPC ...
E02F 3/58 ;
Abstract
A rigging system for dragline buckets includes a unitary adaptor having a hoist equalizer aperture at an upper end thereof and bucket hoist chain connectors extending from opposite sides adjacent a lower end of the adaptor. A connector for a dump block extends forwardly of the adaptor. The hoist equalizer aperture is circular and has transversely rounded bearing surfaces which engage with a cross sectionally rounded support surface of a hoist equalizer to permit relative angular movement between the adaptor and the equalizer. The contact surfaces of the adpator and equalizer are hard faced to reduce wear.