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:
Jan. 29, 1985
Filed:
Sep. 01, 1982
Joseph R Gerber, Jr, Lake Oswego, OR (US);
Gerber Legendary Blades, Portland, OR (US);
Abstract
A concavely ground knife blade has a pair of side faces characterized by oppositely-directed, continuous, slightly concave surfaces. Such surfaces have an arcuate profile approximately fitting a large (e.g., 30 inch) radius circle and follow essentially straight line axes which gradually bend toward one another to form a point. The side faces are first ground widthwise along a diameter of a grinding wheel having an end face beveled at a shallow angle to form a frustoconical grinding surface. The side faces are then polished lengthwise. The resultant blade has a median thickness in its midportion which is nearer the back of the blade than the cutting edge.