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:
Feb. 08, 2011
Filed:
Aug. 26, 2008
Gianni Borinato, Vicenza, IT;
Kelvin Wong, Suzhou, CN;
Shisong Zhang, Suzhou, CN;
Paolo Andriolo, Vicenza, IT;
Warren Brown, Mt. Evenlyn, AU;
Hongfeng Zhong, Suzhou, CN;
Fangshi Liu, Suzhou, CN;
Chengzhong Chen, Suzhou, CN;
Gianni Borinato, Vicenza, IT;
Kelvin Wong, Suzhou, CN;
Shisong Zhang, Suzhou, CN;
Paolo Andriolo, Vicenza, IT;
Warren Brown, Mt. Evenlyn, AU;
Hongfeng Zhong, Suzhou, CN;
Fangshi Liu, Suzhou, CN;
Chengzhong Chen, Suzhou, CN;
Positec Power Tools (Suzhou) Co., Ltd, Suzhou, CN;
Abstract
A power tool comprising a housing, a motor, an output shaft, a gear transmission mechanism and a control system. The gear transmission mechanism is connected between the motor and the output shaft to transmit the rotary power of the motor to the output shaft. The gear transmission mechanism has a high speed position and a low speed position. The control system is coupled to the gear transmission mechanism for detecting an operating characteristic of the power tool to actuate a ring gear to automatically move from the high speed position to the low speed position and to reduce the rotational speed of the ring gear when the operating characteristic exceeding a predetermined value.