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. 29, 2019
Filed:
Aug. 30, 2016
Applicant:
Jpw Industries Inc., LaVergne, TN (US);
Inventor:
Micah A. Coleman, Nashville, TN (US);
Assignee:
JPW Industries Inc., LaVergne, TN (US);
Primary Examiner:
Int. Cl.
CPC ...
B23Q 17/09 (2006.01); B23Q 11/00 (2006.01); B23Q 15/08 (2006.01);
U.S. Cl.
CPC ...
B23Q 17/0957 (2013.01); B23Q 11/0085 (2013.01); B23Q 11/0092 (2013.01); B23Q 17/098 (2013.01); B23Q 17/099 (2013.01); B23Q 17/0952 (2013.01); B23Q 17/0961 (2013.01); B23Q 17/0985 (2013.01); B23Q 15/08 (2013.01); Y10T 408/165 (2015.01); Y10T 408/172 (2015.01); Y10T 408/173 (2015.01);
Abstract
A power tool includes a control for the motor of the power tool that senses an operating characteristic of the motor and controls the operation of the power tool based on the sensed characteristic. The sensed characteristic includes variations in reluctance of the motor. A controller may sense changes on load on the motor as a result of interaction between a working element such as a saw blade or drill bit and the work piece. The controlled operation may include variation in speed or torque or both, or may include stopping the motor. Emergency conditions may be sensed by changes in reluctance.