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US Patent: 6,276,241
Laminated Adjustable Wrench
Patentees:
Robert A. Cornog - Kenosha, WI
Christopher D. Thompson - Milwaukee, WI

USPTO Classifications:
81/170

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
Snap-On Technologies, Inc. - Lincolnshire, IL

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Feb. 18, 2000
Granted: Aug. 21, 2001

Patent Pictures:
USPTO pdf tiff
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Snap-On Tools Company History
Description:
Seyfarth & Shaw - patent attorneys

This application claims the benefit of U.S. provisional application Ser. No. 60/120,511, filed Feb. 18, 1999.

Abstract

The wrench comprises a frame having a head and a fixed jaw on the head. A movable jaw is movably carried by the head and movable toward and away from the fixed jaw. The frame, the head and the jaw are composed of stacked plates. Two of the plates of the frame respectively define frame ledges and two of the plates of the movable jaw respectively define jaw ledges. The jaw ledges respectively overlap the frame ledges so that the movable jaw captures the frame, thus preventing the frame from spreading or tending to delaminate under heavy load.

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