Patent ID: 7331108

Claim:
A knife comprising: a handle having an internal cavity; a compressed gas cylinder disposed within said internal cavity; a blade affixed to said handle, said blade having a first edge and a second edge at least one of which is effective for cutting, said blade also having an internal bore running along a longitudinal axis of said knife from said handle to a point proximate a tip of said blade, said blade further having an aperture extending from said first edge of said blade to said internal bore at an angle relative to said longitudinal axis of between 15° and 75° and; a trigger having a central shaft with a plurality of O-rings circumscribing said central shaft, said trigger moveable between a depressed position and a not depressed position wherein when in said depressed position, said internal bore is in communication with said compressed gas cylinder in said handle and when in said not depressed position, said internal bore is blocked from communication with said compressed gas cylinder in said handle.