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. 03, 2009
Filed:
Dec. 02, 2005
Applicants:
Jong Suk Choi, Seoul, KR;
Tae Min Um, Seo-gu, KR;
IN Woo Kim, Pyungtaek, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24D 5/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a cutting tool for cutting or drilling a brittle work piece such as stone, bricks, concrete and asphalt, and a method for manufacturing thereof. The present invention provides a cutting tool including a shank rotatably connected to a driving device and segments welded at predetermined intervals on an outer periphery of the shank. Each of the segments has abrasives attached thereto by brazing and the each segment is welded after the abrasives are brazed thereto. Also, a method for manufacturing thereof is provided. The present invention ensures improvement in cutting capacity and useful life of the cutting tool.