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:
Nov. 26, 2019
Filed:
Nov. 26, 2014
Applicant:
Hitachi Koki Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
Koki Holdings Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25F 5/00 (2006.01); H02K 7/14 (2006.01); H02K 11/33 (2016.01); H02P 29/40 (2016.01);
U.S. Cl.
CPC ...
B25F 5/00 (2013.01); H02K 7/145 (2013.01); H02K 11/33 (2016.01); H02P 29/40 (2016.02);
Abstract
A power tool includes a motor, a connecting unit, and a controller. The connecting unit is configured to be connected to a secondary battery. A voltage detection unit is configured to detect a voltage of the secondary battery connected to the connecting unit. The controller is configured to acquire change of the detected voltage. The controller restricts the operation of the motor when the change of the voltage is a first value.