Long nose locking pliers

Details Long nose locking pliers Long nose locking pliers

1982-03-02

1985-10-15

Jones, Jr., James L.

Tools

Tool jaw

Jaw-actuating means

81418, B25B 712

Patent

active

045466807

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.

REFERENCES:
patent: 591720 (1897-10-01), Armstrong
patent: 2590031 (1952-03-01), Petersen
patent: 2848810 (1958-08-01), Wendt
patent: 2853910 (1958-09-01), Petersen
patent: 3192804 (1965-07-01), Petersen et al.

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