Patent ID: 7007392

Claim:
A utility knife comprising a handle and a blade holder, said blade holder being pivotally mounted on said handle for movement from an unfolded position to a folded position, said handle having a space adapted to receive at least a portion of said blade holder when the blade holder is in its folded position, said blade holder comprising a main wall and a guard wall movably mounted on said main wall and movable from an open position to a closed position overlying said main wall, the inner surfaces of said main wall and said guard wall being substantially planar, said main wall having means to hold a blade having opposed flat side walls thereon whereby the blade is interposed between said main wall and said guard wall when said guard wall is in its closed position, with the planar inner surface of the main wall abutting one flat side wall of the blade and the planar inner surface of the guard wall abutting the other flat side wall of the blade, said guard wall and said main wall having a predetermined length, the length of the blade being greater than said predetermined length whereby the blade protrudes beyond the front end of said blade holder, and threaded means are provided to hold the guard wall in place over the main wall when the guard wall is in its closed position.