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:
Aug. 14, 2001
Filed:
Aug. 18, 1999
Hisashi Yasoda, Ishikawa-ken, JP;
Noriyuki Wakabayashi, Aichi-ken, JP;
UHT Corporation, Aichi-ken, JP;
Abstract
A cutting blade includes a shank portion and a cutting portion having a predetermined length and opposed sides, and affixed to the shank portion. The cutting portion has a cutting edge portion having a predetermined length and opposed sides and a continuous portion which continuously extends from the cutting edge portion to the shank portion, so that blade thickness gradually increases in a direction towards the shank portion. The cutting portion further has at least one pair of opposed concave curved surfaces substantially symmetrical to each other with respect to a center line, each opposed concave surface axially extending in a direction substantially parallel to the length of the cutting edge portion and provided on at least one of the cutting edge portion and the continuous portion. Also provided is a plurality of arcuate surfaces provided on at least one of the opposed sides of the cutting edge portion, and the opposed concave curved surfaces, each arcuate surface extending along the continuous portion in a direction substantially orthogonal to the length of the cutting edge portion.