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:
Jul. 12, 2005
Filed:
Oct. 22, 2003
Chih-hua Hsu, Taichung, TW;
Yu-min Su, Taichung, TW;
Chen-chen Cheng, Taichung, TW;
Techway Industrial Co., Ltd., Taichung, TW;
Abstract
An electrical ratchet wrench has a body, a motor, a battery set, a switch, a planet gear assembly, a connecting collar, a head and a ratcheting device. The motor is received in the body and has an output shaft with a pinion. The battery set is detachably received in the body and is electrically connected to the motor. The switch is electrically connected between the motor and the battery set. The planet gear assembly is received in the body and has a rotating base, a stub, multiple planet gears and a stationary collar. The connecting collar securely holds the stationary collar in the connecting collar. The ratcheting device is received in the head for driving a fastener to rotate and has a driven shaft connected to the stub on the rotating base. Accordingly, a cordless electrical ratchet wrench is provided and is convenient in use.