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.:

US 9013130 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 21, 2015

Filed:

Dec. 03, 2012
Applicant:

Mobiletron Electronics Co., Ltd., Taichung, TW;

Inventor:

Chun-Cheng Chen, Taichung, TW;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H02P 7/06 (2006.01); H02P 31/00 (2006.01); H02P 29/00 (2006.01); H02P 23/14 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H02P 31/00 (2013.01); H02P 29/0033 (2013.01); H02P 23/14 (2013.01); H02J 2007/0067 (2013.01);
Abstract

An impact power tool includes a motor, a battery, a hammer mechanism and a control apparatus. The motor runs in the same speed no matter what torque level is selected. The motor runs for a total running time which is identical to an impacting time plus a compensative time. The impacting time is decided according to the selected torque level, and the compensative time is decided according to the power of the battery. An impacting time table and a compensative time table are pre-established to decide the impacting time value and the compensative time value. Therefore, the impact power tool always provides the theory torque output of the selected torque even if the battery is low.


Find Patent Forward Citations

Chen, Chun-Cheng. (2015). Method of controlling torque output of impact power tool and the control apparatus (U.S. Patent No. 9013130). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9013130

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