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:
Mar. 20, 2012
Filed:
Apr. 08, 2010
Applicant:
Yi-chen Chen, Taipei, TW;
Inventor:
Yi-Chen Chen, Taipei, TW;
Assignees:
Wang Wang Dah Enterprises Co., Ltd., Taipei, TW;
Dong Guan Top Den Electronics Limited Company, Dongguan, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B65H 75/48 (2006.01);
U.S. Cl.
CPC ...
Abstract
A single free-end wire reel includes a leveled area disposed on a rotary member to level arc tracks and a gap formed at the intersection of the arc tracks to change the motion track of a limit block. The present invention not only keeps the limit block to have a dual-positioning function when doing a circular motion but also controls the length of a wire exactly, providing a smooth operation when extending or extracting the wire.