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:
Jan. 09, 2018
Filed:
Jul. 24, 2014
Applicant:
Makita Corporation, Anjo-shi, Aichi, JP;
Inventor:
Takuya Kusakawa, Anjo-shi, JP;
Assignee:
MAKITA CORPORATION, Anjo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 1/00 (2006.01); H02P 6/00 (2016.01); H02P 7/29 (2016.01); B25F 5/00 (2006.01);
U.S. Cl.
CPC ...
H02P 6/002 (2013.01); B25F 5/00 (2013.01); H02P 7/2913 (2013.01);
Abstract
A motor-driven appliance includes a motor and a control unit that controls a drive output to the motor. The control unit detects a state amount indicating an operational state of the motor to derive a fluctuation range of fluctuation in the state amount. The control unit detects whether the motor is in an unloaded state or in a loaded state, based on the derived fluctuation range to perform the drive output to the motor, based on the detected result.