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:
Oct. 17, 2006
Filed:
Apr. 21, 2004
Applicant:
Rui-chi Shen, Taichung Hsien, TW;
Inventor:
Rui-Chi Shen, Taichung Hsien, TW;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25B 13/46 (2006.01); B25B 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ratchet wrench includes a handle, a drive head, a ratchet wheel, a pawl member, a control knob, a positioning plate, and an urging spring. Thus, the ratchet wrench includes a positioning plate to push the pawl member, thereby reducing the volume of the ratchet wrench efficiently. In addition, the urging spring is supported and guided by the guide shaft of the positioning plate, so that the positioning plate is not easily deformed, thereby facilitating movement of the urging spring in the positioning plate.
Shen, Rui-Chi. (2006). Ratchet wrench operated conveniently (U.S. Patent No. 7121170). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7121170
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile