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:
May. 21, 2024

Filed:

Mar. 28, 2020
Applicants:

Keith A. Johnson, West Bend, WI (US);

Andrew J. Theisen, Fond du Lac, WI (US);

Mark More, West Bend, WI (US);

Casey Placek, Van Dyne, WI (US);

Inventors:

Keith A. Johnson, West Bend, WI (US);

Andrew J. Theisen, Fond du Lac, WI (US);

Mark More, West Bend, WI (US);

Casey Placek, Van Dyne, WI (US);

Assignee:

Kondex Corporation, Lomira, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 26/00 (2006.01); C21D 9/22 (2006.01); C22F 1/10 (2006.01); C22F 1/18 (2006.01); E21B 7/04 (2006.01); E21B 10/46 (2006.01);
U.S. Cl.
CPC ...
C23C 26/00 (2013.01); C21D 9/22 (2013.01); C22F 1/10 (2013.01); C22F 1/18 (2013.01); E21B 7/046 (2013.01); E21B 10/46 (2013.01);
Abstract

A boring bit or other component for horizontal directional drilling is provided which includes a hard faced layer that is preferably made by a laser cladding bead. A subsequent or post heat treatment is applied to modify the heat affected zone (HAZ) to eliminate or reduce the hard brittle regions and/or softer regions in the base iron or steel material of the HAZ. Further, the hard faced layer may be applied in combination with carbide insert teeth that are embedded within the steel base of the boring bit body, such as by press fitting.


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