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US Patent: 3,116,656
Self-Adjusting Plier-Type Toggle Locking Wrench
Patentee:
John L. Hostetter - Murray, NE

USPTO Classifications:
81/379

Tool Categories:
wrenches : pliers type wrenches : locking pliers

Assignees:
None

Manufacturer:
Leverage Tools Inc. - Glenvil, NE

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 26, 1962
Granted: Jan. 07, 1964

Reissue Information:
Reissued as RE26,280 (Oct. 17, 1967)

Patent Pictures: [ 1 | 2 ]
John L. Hostetter patent January 7, 1964
USPTO pdf tiff
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Description:
Sliding wedges in the handle provide a self-adjusting base for this locking plier. The wedges are positioned in relation to each other by a spring linkage attached to the movable jaw. The patent is described as an improvement on Hostetter's June 26, 1956 patent (no. 2,751,801). It also notes a Canadian patent, and U.S. patent no. 251,285. Note also pat. no. 3,600,986.

This is the basic patent for the LEVERAGE TOOLS self-adjusting locking pliers and other gripping tools using the same handles and modified jaws.

The patent number also appears on STANLEY AUTO-GRIP PLIERS which may have been produced by Leverage Tools for Stanley, and which led to Stanley's buy-out of Leverage Tools in 1982.

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