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:
Mar. 23, 2010
Filed:
Oct. 12, 2007
Applicants:
David R. Hall, Provo, UT (US);
Ronald Crockett, Provo, UT (US);
Sigmar Tobias, Provo, UT (US);
Inventors:
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
E02F 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
In one aspect of the present invention, a roller assembly on an excavator for degrading natural and man-made formations has a plurality of pointed inserts disposed along its outer diameter. The inserts have a tip adapted to impact the formation and at least one of the tips has polycrystalline diamond bonded to a cemented metal carbide segment. The diamond also has a substantially conical geometry with a 0.50 to 0.200 inch radius and a thickness greater that 100 inches at the apex. The diamond also has a volume that is 75 to 150 percent of a volume of a carbide substrate.