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. 04, 2009
Filed:
Feb. 15, 2006
Applicants:
Takuma Nonaka, Tokyo, JP;
Naohide Murakami, Tokyo, JP;
Inventors:
Takuma Nonaka, Tokyo, JP;
Naohide Murakami, Tokyo, JP;
Assignee:
Max Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drill tool is provided with: a drive source accommodated in a tool bodya bit drive shaftwhich is rotation-driven by the drive source and provided projectingly from a front end of the drill bodyand a diamond bitattached to a front end of the bit drive shaftFurther, the drill tool is provided with a vibrating apparatus which generates vibrating force which acts in the axial direction of the bit drive shafta magnitude of which pulsates, and vibrating moment which acts in the rotational direction of the bit drive shafta magnitude of which pulsates.