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:
Jan. 05, 1988
Filed:
Dec. 22, 1986
Applicant:
Inventor:
Alan D Huffstutler, Grand Prairie, TX (US);
Assignee:
Dresser Industries, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
175410 ;
Abstract
A cutter element for a rotary type rock bit used in drilling soft earth formations in which the cutter element includes a base and a generally dual pyramidic cutting tip. The cutting tip extends from the base to a crest and is formed having axially symmetrical opposite flanks that extend longitudinally merging toward a distal end at which a single elongated crest of substantially uniform width is formed about an apex.