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. 21, 1993
Filed:
May. 26, 1992
Applicant:
Inventors:
Spencer C Rees, Sugar Grove, IL (US);
Daniel S Pusateri, Des Plaines, IL (US);
Susan C Melvin, Streamwood, IL (US);
Assignee:
Wen Products, Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
51 8 / ; 51 8 / ;
Abstract
A knife sharpener has a slotted casing for housing grinding wheels made up of modular elements placed in back-to-back relation to form an assembly interfitting with a second assembly. The two assemblies rotate in opposite directions for peripheral grinding. Plastic gears adhesively fastened to the wheels interconnect a high speed universal motor to the grinding wheels to effect a 3.55 speed reduction. Simultaneous hollow grinding is effected with a burr free edge.