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:
Apr. 25, 2006
Filed:
Nov. 28, 2003
Applicants:
Ming-hua LI, Tai Chung, TW;
Li-hsia Lin, Tai Chung, TW;
Mei-chin Chou, Tai Ping, TW;
Inventors:
Assignee:
Industrial Technology Research Institute, Hsinchu Hsien, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B 23/157 (2006.01);
U.S. Cl.
CPC ...
Abstract
A constant force socket is constructed to include a socket body, which has an inner hole at one end and a set of teeth radially disposed inside the inner hole, a ratchet wheel, which is mounted inside the inner hole of the socket body and has a tool hole at one side and a set of radially arranged teeth at an opposite side, a screw member threaded into the inner hole of the socket body, and a compression spring supported between the ratchet wheel and the screw member to force the teeth of the ratchet wheel into engagement with the teeth of the socket body.