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:
Sep. 13, 2016
Filed:
Jan. 15, 2014
Applicant:
Bradken Canada Manufactured Products Ltd., Edmonton, CA;
Inventors:
Jonathan Daniel Curlett, Edmonton, CA;
Nolan Brian Serink, Waunakee, WI (US);
Assignee:
Bradken Canada Ltd., Edmonton, Alberta, CA;
Primary Examiner:
Int. Cl.
CPC ...
B02C 4/30 (2006.01); E21B 10/48 (2006.01); E21C 25/10 (2006.01); E21C 35/193 (2006.01);
U.S. Cl.
CPC ...
E21B 10/485 (2013.01); B02C 4/305 (2013.01); E21C 25/10 (2013.01); E21C 35/1933 (2013.01);
Abstract
An improved tooth for a roller crusher is presented. The tooth can include a first tungsten carbide overlay layer plasma-transfer arc welded on a recessed hemispherical end of the tooth, which is covered by a wearable cap placed over the first overlay layer, the cap welded to the tooth. A second tungsten carbide overlay layer can then be plasma-transfer arc welded over the cap to, thereby, provide a tooth having two tungsten carbide overlay wear layers.