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:
Oct. 06, 1998

Filed:

Jun. 07, 1996
Applicant:
Inventors:

Mahlon Denton Dennis, Kingswood, TX (US);

Eric Twardowski, Houston, TX (US);

Assignee:

Dennis Tool Company, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
175432 ;
Abstract

An insert construction is set forth comprising a right cylinder insert body crowned with a PDC crown bonded thereto defining an interface between the two materials. The interface construction is described in geometric terms. The interface includes irregular curvilinear sided depressions to enhance the interface grip between the two materials thereby reducing shear stress concentration which might damage the PDC crown. Other failure modes are reduced also. Relationships are set forth in the amount, depth, and shape of the depressions.


Find Patent Forward Citations

Dennis, Mahlon. (1998). Pdc clad drill bit insert (U.S. Patent No. 5816347). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5816347

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

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