Knife with push button articulated spring
OwnerScott Reedinventor
Life of this patent
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Abstract
A folding knife with a push button automatic open spring configuration to propel the pivoted knife blade outwardly from between the support handle frames. A bifurcated compound spring configuration has a transverse blade engagement portion and a pair of returning integral handle engagement arms against which the spring is compressed when in closed folded position within the handle. The bifurcated spring exerts opening force on the blade when the blade is released to a full open use position.
Claims5
An automatic opening folding blade knife comprising, a handle portion having a pair of frame members defining a recess into which a knife blade is capable of retracting,
- a dual bifurcated blade engagement spring retained within said handle portion,
- said dual bifurcated blade engagement spring having elongated pairs of vertically spaced parallel arms, said arm pairs interconnected to one another defining frame members engagement arm pair and a blade engagement arm pair of a single spring wire in spaced vertical overlying position to one another,
- said blade engagement arm pair having a continuous end linkage for direct transverse contact with said knife blade when retracted within the handle recess,
- a blade release, registerable with said knife blade.
Dependencies are inferred from the claim text.