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:
Mar. 05, 1991
Filed:
Mar. 09, 1989
Applicant:
Inventor:
Christopher C Laughton, Cornwall, GB;
Assignee:
Martek Limited, Cornwall, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
51128 ; 5124 / ; 5123 / ;
Abstract
Apparatus for sharpening an edge tool comprises a rotary grindstone mounted so as to be rotatable about a first axis of rotation, and a tool mount for a tool to be sharpened, in which the tool mount is turnable about an axis whereby to permit the edge tool to be turned so that a face to be ground moves in an arc lying in a plane parallel to that part of the grindstone against which the face is to be ground. The rotatable grindstone has a hollow cup-shape and is mounted at the end of a spindle in a body which can be clamped by brackets to a workbench or other support surface leaving the spindle exposed to be gripped by a pistol drill or other drive means.