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.

Date of Patent:
Jun. 07, 2016

Filed:

Dec. 06, 2013
Applicant:

Basso Industry Corp., Taichung, TW;

Inventor:

San-Yih Su, Taichung, TW;

Assignee:

BASSO INDUSTRY CORP., Taichung, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B25B 13/46 (2006.01); F16D 41/16 (2006.01); B25B 21/00 (2006.01);
U.S. Cl.
CPC ...
F16D 41/16 (2013.01); B25B 21/004 (2013.01);
Abstract

A ratchet wrench includes a direction switching device. The direction switching device includes two switching members for controlling the rotational direction of a gear, a resilient unit disposed among a body and the switching members for biasing the switching members away from the gear, and a ring unit disposed rotatably on the body. The ring unit includes a convex portion and a concave portion, and is operable to allow the convex portion and the concave portion to act on the switching members, so that one of the switching members comes into contact with the gear, while the other of the switching members is removed from the gear. When no external force is applied to the ring unit, the switching members are biased by the resilient unit to remove from the gear.


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