US Patent 11945126 Pocket knife

A pocket knife includes a first scale having a first scale inner surface, a second scale opposed to the first scale having a second scale inner surface, and a cavity between the first scale inner surface and the second scale inner surface. A blade has a cutting edge, and the blade has a retracted position in which the cutting edge is inside of the cavity and a deployed position in which the cutting edge is outside of the cavity. A recess in the first scale inner surface extends from the first scale inner surface partially through the first scale, and a flange is around at least a portion of the recess in the first scale inner surface. A boss extends from the second scale inner surface into the recess in the first scale inner surface, and an end of the boss is tapered toward the second scale inner surface.