Abstract: A firearm system having separate frame, action, & lock systems is disclosed. The firearm system is closed, sealed, and inaccessible when in safe mode. The physical gripping of the firearm allows access to a lock input component which is then physically actuated at which point if a lock code has been input correctly, the firearm system changes from safe mode to firing mode thereby allowing use as a firearm. Upon physical release of the grip, the firearm immediately returns to safe mode.

Abstract: A round of ammunition including projectiles formed in a stack and having an offset center of mass. Upon discharge, the projectiles are subject to a complex flight path and increased drag, providing advantages in controlling pattern and depth of penetration at a distance.

Abstract: A round of ammunition including projectiles formed in a stack and having an offset center of mass. Upon discharge, the projectiles are subject to a complex flight path and increased drag, providing advantages in controlling pattern and depth of penetration at a distance.

Abstract: Embodiments of the present invention relate to a tourniquet tension indicator including a base configured to attach to a tourniquet strap, a platform configured to move relative to the base, a visual indicator configured to provide a variable visible indicator, and an initiator configured to apply a pressure to the visual indicator based on relative lateral motion of the platform to the base.

Abstract: Systems and methods are provided for a modular shelter that is suited for use as a safety chamber in an underground working environment. The shelter includes at least two wall units connected along a substantially sealed seam, a base unit that extends substantially throughout a floor plan of the shelter, and a roll cage that surrounds an outer extent of the shelter above the floor plan. The shelter may be configured to maintain a pressurized state in a closed condition. Each of the at least two wall units may share a substantially common shape and substantially common dimension, and may form a part of a wall, ceiling, and floor of the shelter. The shelter can also include various atmospheric control, circulation, and purge systems, and exterior and soft seal doors to assist in maintaining a livable atmosphere in the safety chamber.

Abstract: A firearm system having separate frame, action, & lock systems is disclosed. The firearm system is closed, sealed, and inaccessible when in safe mode. The physical gripping of the firearm allows access to a lock input component which is then physically actuated at which point if a lock code has been input correctly, the firearm system changes from safe mode to firing mode thereby allowing use as a firearm. Upon physical release of the grip, the firearm immediately returns to safe mode.

Abstract: Tourniquet assemblies are provided including a pressure applicator adapted to be secured around a limb and a tensioning mechanism for applying a working tension to the pressure applicator. The tensioning mechanism may include a platform, a clip and a tensioning member. The tensioning mechanism may be configured to apply the working tension via rotation of the tensioning member, and the clip may be configured to receive, and at least temporarily inhibit rotation of, the tensioning member. A tension indicator may also be provided including a base configured to attach to a tourniquet strap, a platform configured to move relative to the base when subjected to a tourniquet working pressure, and one or more tactile or visual indicators configured to provide a variable tactile or visual indicator based on the tourniquet working pressure.

Abstract: Tourniquet assemblies are provided including a pressure applicator adapted to be secured around a limb and a tensioning mechanism for applying a working tension to the pressure applicator. The tensioning mechanism may include a platform, a clip and a tensioning member. The tensioning mechanism may be configured to apply the working tension via rotation of the tensioning member, and the clip may be configured to receive, and at least temporarily inhibit rotation of, the tensioning member. A tension indicator may also be provided including a base configured to attach to a tourniquet strap, a platform configured to move relative to the base when subjected to a tourniquet working pressure, and one or more tactile or visual indicators configured to provide a variable tactile or visual indicator based on the tourniquet working pressure.

Abstract: A combination wire-nut driver tool configured with a long hollow shank with a flared tip containing two slots which securely grip a wire-nut for the purpose of positioning and tightening a pair of electrical wires. The combination wire-nut driver tool further includes an axial bore, through which an electrical wire can pass, and a removable handle-cap which can be converted to a small screwdriver.

Abstract: Systems and methods are provided for a modular shelter that is suited for use as a safety chamber in an underground working environment. The shelter includes at least two wall units connected along a substantially sealed seam, a base unit that extends substantially throughout a floor plan of the shelter, and a roll cage that surrounds an outer extent of the shelter above the floor plan. The shelter may be configured to maintain a pressurized state in a closed condition. Each of the at least two wall units may share a substantially common shape and substantially common dimension, and may form a part of a wall, ceiling, and floor of the shelter. The shelter can also include various atmospheric control, circulation, and purge systems, and exterior and soft seal doors to assist in maintaining a livable atmosphere in the safety chamber.