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:
May. 13, 2003
Filed:
Aug. 03, 2001
Applicant:
Inventor:
David Burnet Sugden, Kingston Beach, AU;
Assignee:
Odyssey Technology Pty Ltd, Brisbane, AU;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21C 2/516 ;
U.S. Cl.
CPC ...
E21C 2/516 ;
Abstract
A rock excavating or cutting device including a disc cutter that is driven by drive means to rotate in an oscillating and nutating manner by driving the disc cutter about separate oscillating and nutating axes aa, bb which are angularly offset from one another and which intersect at a point ahead of the disc cutter.