Abstract: An replacement blade knife includes a replaceable blade, a blade holder and a blade lock. The replaceable blade includes an opening adjacent to its base edge. The blade holder includes a blade recess for receiving the replaceable blade and a boss corresponding to the opening in the blade which projects from the surface of the blade recess. The boss has a low portion that is no thicker than the replaceable blade and a raised portion that extends above the surface of the replaceable blade. The blade lock pivots on the blade holder between an opened position for receiving the replaceable blade and a closed position for retaining the replaceable blade. The blade lock also includes an opening for receiving the boss of the blade holder.

Abstract: An exchange blade knife includes a replaceable blade, a blade holder and a blade lock. The replaceable blade includes an opening adjacent to its base edge. The blade holder includes a blade recess for receiving the replaceable blade and a boss corresponding to the opening in the blade which projects from the surface of the blade recess. The boss has a low portion that is no thicker than the replaceable blade and a raised portion that extends above the surface of the replaceable blade. The blade lock pivots on the blade holder between an opened position for receiving the replaceable blade and a closed position for retaining the replaceable blade. The blade lock also includes an opening for receiving the boss of the blade holder.

Abstract: An emergency tool for escaping from a motor vehicle has a generally symmetrical body including a handle portion and a cutting portion. The handle portion carries two opposite window breaking elements adapted for breaking and shattering tempered motor vehicle window glass. The cutting portion includes opposite cutters having fingers which define slots for receiving belt webbing material. The cutting slots lead to sharp blades fixed at the closed end of each slot which are adapted for cutting the belt webbing material of motor vehicle seat belts. The body optionally includes at least one compartment for carrying an emergency item such as a fire starting flare or an emergency locating transmitter and may also incorporate optional LED lights to provide illumination for emergency operations.

Abstract: An exchange blade knife includes a replaceable blade, a blade holder and a blade lock. The replaceable blade includes an opening adjacent to its base edge. The blade holder includes a blade recess for receiving the replaceable blade and a boss corresponding to the opening in the blade which projects from the surface of the blade recess. The boss has a low portion that is no thicker than the replaceable blade and a raised portion that extends above the surface of the replaceable blade. The blade lock pivots on the blade holder between an opened position for receiving the replaceable blade and a closed position for retaining the replaceable blade. The blade lock also includes an opening for receiving the boss of the blade holder.

Abstract: An emergency tool for escaping from a motor vehicle has a generally symmetrical body including a handle portion and a cutting portion. The handle portion carries two opposite window breaking elements adapted for breaking and shattering tempered motor vehicle window glass. The cutting portion includes opposite cutters having fingers which define slots for receiving belt webbing material. The cutting slots lead to sharp blades fixed at the closed end of each slot which are adapted for cutting the belt webbing material of motor vehicle seat belts. The body optionally includes at least one compartment for carrying an emergency item such as a fire starting flare or an emergency locating transmitter and may also incorporate optional LED lights to provide illumination for emergency operations.