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:
Dec. 30, 2014
Filed:
Jan. 20, 2010
Applicants:
Mizuho Nakamura, Hitachinaka, JP;
Kimitaka Abo, Mito, JP;
Teruo Imai, Hitachinaka, JP;
Inventors:
Assignee:
Hitachi Koki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 1/00 (2006.01); B23D 51/16 (2006.01); B23Q 5/027 (2006.01); B25D 11/00 (2006.01); B25D 11/12 (2006.01);
U.S. Cl.
CPC ...
B23D 51/16 (2013.01); B23Q 5/027 (2013.01); B25D 11/005 (2013.01); B25D 11/12 (2013.01);
Abstract
The invention provides a reciprocating electric tool () having a brushless motor (), a plunger (), and control means (). The plunger () is driven by the brushless motor and reciprocating between two dead centers. A end bit () is mounted to one end of the plunger in a reciprocating direction. The control means () controls a rotational speed of the brushless motor based on a position of the plunger.