07698821 is referenced by 21 patents and cites 20 patents.

The folding knife of the present invention includes a handle having first and second handle members that are maintained in spaced, parallel relation to one another by spacing elements that define a groove therebetween. The blade is pivotally attached to the handle at its tang portion and is movable into and out of the groove between its fully open and fully closed positions. A coil spring, or equivalent, may be interconnected between the tang and handle to provide an assisted opening mechanism. A blade lock includes a user actuated button that passes through an elongated slot formed through one of the handle members and through a circular opening formed through a bias plate that is positioned within the handle, and a plunger element that is spring biased in a direction transverse to the longitudinal axis of the blade.

Lock mechanism for spring assisted folding knife
Application Number
Publication Number
7698821 (B2)
Application Date
January 20, 2006
Publication Date
April 20, 2010
Darrel Ralph
Galena, 43021
Thomas W Epting
Smith Moore Leatherwood
F41C 27/18
F41B 13/02
B26B 3/06
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