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US Patent: 4,546,680
Long Nose Locking Pliers
Patentee:
Christian Petersen (exact or similar names) - DeWitt, NE

USPTO Classifications:
81/367, 81/418, D8/52

Tool Categories:
wrenches : pliers type wrenches : locking pliers

Assignees:
Petersen Mfg. Co., Inc. - DeWitt, NE

Manufacturer:
Petersen Mfg. Co., Inc. - DeWitt, NE

Witnesses:
none listed

Patent Dates:
Applied: Mar. 02, 1982
Granted: Oct. 15, 1985

Patent Pictures:
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Report data errors or omissions to steward Stan Schulz
Description:
Lackenbach, Siegel, Marzullo, Presta & Aronson - patent attorneys

Abstract

A long nose locking hand tool having a pair of opposing jaw members, a fixed handle and a movable handle and lever locking means therebetween for maintaining a toggle relationship between the jaws when in a closed position; and wherein each of said jaw members comprising a jaw face configuration having a total jaw length to average jaw height ratio of from about 6.5 to about 11.5 with a through jaw hardness range of from about 53 to about 57 Rockwell C, with said jaw members made of an alloy spring steel, said jaw members having a nominal parallel opening when they are spaced apart, no greater than about 1/4 inch, thereby enabling said jaw members to clamp a workpiece therebetween with parallel jaw faces by flexing to the parallel condition when closed and returning to their original unstressed state when released of clamping pressure.

Appears in VISE-GRIP(R) catalog listings, etc. together with 4,541,312 as pertinent to "Long Nose" VISE-GRIP(R) locking pliers.

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