Folding knife apparatus

Details Folding knife apparatus Folding knife apparatus

1990-10-29

1991-10-29

Yost, Frank T.

Cutlery

Sheathed

Pivoted blade

30160, 30157, 30155, B26B 100, B26B 106, B26B 104, B26B 108

Patent

active

050603795

ABSTRACT:
Folding knife apparatus includes a blade having a tang secured to a case or housing. Wedging action between the tang and the case locks the blade open and closed. The tang includes a longitudinally extending slot, and the case or housing includes a pin extending through the longitudinally extending slot. A spring is disposed in the slot and biases the blade against the pin to help lock the blade in place, particularly in the open, use position. Axial movement of the blade is required to unlock the blade from its open position in order to pivot the blade. A cam relationship exists between a portion of the tang and a portion of the case or housing to urge the blade to the closed position.

REFERENCES:
patent: 1478260 (1923-12-01), Sibley
patent: 3896546 (1975-07-01), Hildebrandt
patent: 4893409 (1990-01-01), Poelmann

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