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:
Jun. 26, 2012
Filed:
Mar. 16, 2009
Applicants:
Richard S. Smith, Hot Springs, AR (US);
Louis Chaltant, Hot Springs, AR (US);
Inventors:
Richard S. Smith, Hot Springs, AR (US);
Louis Chaltant, Hot Springs, AR (US);
Assignee:
Smith Abrasives, Inc, Hot Springs, AR (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B 3/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electric abrasive sharpener for sharpening edges having pairs of interlocking abrasive wheels formed with opposite abrasive helical threads. Each end of the threads respectively has lead-in section and lead-out section having chamfer edge portion to eliminate kickback. The abrasive wheels of the sharpener is driven by a single phase AC motor connected to a motor drive that steps down the rotational speed of the output shaft of the motor to rotate the abrasive wheels with increased torque.