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. 27, 2012
Filed:
Aug. 14, 2008
Youichirou Shimizu, Komatsu, JP;
Youichirou Shimizu, Komatsu, JP;
Komatsu NTC Ltd., Toyama, JP;
Abstract
A vertical outer circumferential cutter tip, which has an approximate hourglass shape that is narrower at its middle than at its ends, and all of its eight corners are acute angles. Both sides of the vertical outer circumferential cutter tip are relieved at an angle α. When performing cutting processing upon the side surface of a counter weight with the vertical outer circumferential cutter tip, excessive friction is prevented. The shapes of the upper end portion and the lower end portion of the vertical outer circumferential cutter tip are formed so as to be very gently convexed, and with a relief of an angle β. Abrasion of the upper end portion and the lower end portion of the vertical outer circumferential cutter tip is prevented before the acute angled corner used for cutting is damaged.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile