Patent ID: 7752759

Claim:
A knife comprising: a handle having a first end; a blade including: a tang attached to the handle and pivotable relative to the handle about a pivot axis to move the blade to an extended position extending from the first end and a retracted position, the tang having a cavity positioned between a free end of the tang and the pivot axis and including a central axis parallel or substantially parallel with the pivot axis and located a distance away from the pivot axis that is greater than the distance between the pivot axis and the first end of the handle, and an edge configured to be exposed for cutting when the blade is in the extended position and to be concealed to prevent cutting when the blade is in the retracted position; and a lock including a pin moveable relative to the handle and insertable into the cavity to retain the blade in the extended position, wherein the pin extends from a portion of the handle that is elastically bendable and configured to urge the pin toward the tang.