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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.:

US 10384284 B1

PDFFull Text
Date of Patent:
Aug. 20, 2019

Filed:

Sep. 26, 2015

Carbide wear surface and method of manufacture

Applicant:

Dennis Tool Company, Houston, TX (US);

Inventors:

Mahlon D. Dennis, Kingwood, TX (US);

Thomas M. Dennis, Kingwood, TX (US);

Richard W. Lewis, Tomball, TX (US);

Assignee:

Syntex Super Materials, Inc., Houston, TX (US);

Attorney:

Hubbard Johnston, PLLC

Primary Examiner:

Hung D Nguyen

Int. Cl.
CPC ...
B23K 13/01 (2006.01); B23K 1/002 (2006.01); E21B 4/00 (2006.01); F16C 33/04 (2006.01); B23K 1/19 (2006.01); B23K 35/22 (2006.01); B23K 35/30 (2006.01); E21B 10/22 (2006.01); B23K 101/34 (2006.01); B23K 103/04 (2006.01); B23K 103/00 (2006.01); F16C 33/14 (2006.01);
U.S. Cl.
CPC ...
B23K 1/002 (2013.01); B23K 1/19 (2013.01); B23K 35/226 (2013.01); B23K 35/30 (2013.01); E21B 4/003 (2013.01); F16C 33/043 (2013.01); B23K 2101/34 (2018.08); B23K 2103/04 (2018.08); B23K 2103/50 (2018.08); E21B 10/22 (2013.01); F16C 33/14 (2013.01); F16C 2206/82 (2013.01); F16C 2220/20 (2013.01); F16C 2220/60 (2013.01); F16C 2220/66 (2013.01); F16C 2220/70 (2013.01); F16C 2223/06 (2013.01); F16C 2223/30 (2013.01); F16C 2226/12 (2013.01); F16C 2226/34 (2013.01); F16C 2352/00 (2013.01); Y10T 428/164 (2015.01);
Abstract

A radial bearing having a wear surface with improved wear characteristics comprises a steel support, to which is bonded a metal carbide composite wear surface made by first arranging, within a cavity defined between a steel mold and the steel support, tiles made of microwave sintered, cemented metal carbide, closely packing the voids between the tiles with metal carbide powder, and infiltrating the mold cavity with a metal brazing alloy by subjecting the filled mold to rapid heating. The brazing alloy fills voids between the metal carbide particles, the microwave sintered metal carbide tiles, and the metal support, thereby relatively rapidly consolidating the carbide into a wear layer bonded with the steel support without substantially damaging the properties of the microwave-sintered metal carbide tiles.

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