Ring lock knife

Details Ring lock knife Ring lock knife

1974-05-30

1976-01-06

Smith, Al Lawrence

Cutlery

Sheathed

Pivoted blade

B26B 104

Patent

active

039303098

ABSTRACT:
The knife has a slotted handle and a blade that pivots into and out of the slot of the handle. A free floating pivot pin extends through the slotted end of the handle and through the opening of the tang of the blade, and a slotted ring lock extends about the pivot pin. The ring lock is rotatable on the handle so that its slot is movable into and out of alignment with the slot of the handle, to lock the blade with respect to the handle. The periphery of the tang defines hemispherical indentations, and a spring-urged ball in the handle engages the tang and registers with the indentations so that the blade resists movement when in its folded or extended positions but is free to move when intermediate the end positions.

REFERENCES:
patent: 459056 (1891-09-01), Truax
patent: 592426 (1897-10-01), Meyer
patent: 684016 (1901-10-01), Weidknecht
patent: 727724 (1903-05-01), Weil
patent: 1182043 (1916-05-01), Schless
patent: 2559993 (1951-07-01), Parrigin
patent: 3061927 (1962-11-01), Ludwigsdorf

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