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:
Jul. 15, 2014

Filed:

Feb. 14, 2011
Applicants:

Thomas M. Chervenak, Stanley, NC (US);

David P. Engvall, Stanley, NC (US);

Inventors:

Thomas M. Chervenak, Stanley, NC (US);

David P. Engvall, Stanley, NC (US);

Assignee:

Irwin Industrial Tool Company, Huntersville, NC (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B25B 7/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A locking tool is provided that comprises an adjustment mechanism that can adjust the distance between the jaws, and the clamping force exerted by the jaws on a workpiece, using the same hand that grips the handles of the tool. A locking tool is also provided where the tool can be locked by moving the handles toward one another. Once locked, the pliers can be unlocked and the jaws opened by squeezing the handles toward one another in the same manner, in the same direction and using the same hand as was done to lock the pliers. As a result the pliers can be locked and unlocked using one-hand and using the same hand movement to both lock and unlock the pliers.


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