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:
May. 08, 2007
Filed:
Mar. 03, 2005
Applicants:
Takuma Saito, Ibaraki, JP;
Shinki Ohtsu, Ibaraki, JP;
Hideki Watanabe, Ibaraki, JP;
Junichi Toukairin, Ibaraki, JP;
Inventors:
Takuma Saito, Ibaraki, JP;
Shinki Ohtsu, Ibaraki, JP;
Hideki Watanabe, Ibaraki, JP;
Junichi Toukairin, Ibaraki, JP;
Assignee:
Hitachi Koki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 46/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
An impact drill includes a first ratchet together with a spindle and movable in an axial direction, and a second ratchet engageable with the first ratchet. The second ratchet can be moved in the axial direction, and rotated with a predetermined range in a rotational direction.