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:
Sep. 18, 2007
Filed:
Oct. 31, 2003
Applicant:
Hong LU, Beijing, CN;
Inventor:
Hong Lu, Beijing, CN;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B 13/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a single wedge wrench including two jaws, one of which has a zigzag gripping surface. The wrench further includes a wedge having a zigzag gripping surface. The wedge is mounted on an inner surface of the other one of the two jaws by means of a joint member, being slidable along the inner surface. The wrench disclosed can be used for bolts or nuts with various types and sizes, and an operation can be performed as long as a handle of the wrench is returned. The wrench can be manufactured with a simple process in a production line.