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.

Date of Patent:
Jul. 17, 1979

Filed:

Aug. 02, 1978
Applicant:
Inventor:

Howard E Mitchell, Duncanville, TX (US);

Assignee:

Dresser Industries, Inc., Dallas, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175374 ; 175410 ; 175 53 ;
Abstract

An insert cutter for earth boring includes a plurality of skewed inserts for contacting the earth formations being bored. At least one annular row of tungsten carbide inserts are positioned in the cutter body. Each insert has an elongated body and a formation contacting head. The elongated body is mounted in a socket in the cutter body and the formation contacting head projects from the cutter body. The inserts are installed on the cutter body such that the inserts axes are angularly offset between one-half to thirty degrees from the rotational axis of the cutter.


Find Patent Forward Citations

Mitchell, Howard. (1979). Skewed inserts for an earth boring cutter (U.S. Patent No. 4161225). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4161225

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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