Retractable floor barriers are provided that can be quickly opened and closed by pneumatic actuators and operated by the closing and opening of an electrical circuit. The retractable floor barriers can be used at the docks of trains and subway stations to prevent accidental falls therefrom.

Retractable floor barriers are provided that can be quickly opened and closed by pneumatic actuators and operated by the closing and opening of an electrical circuit. The retractable floor barriers can be used at the docks of trains and subway stations to prevent accidental falls therefrom.

A multiple direction railroad gate release mechanism which is attached between the mount arms of a railroad gate actuator and a crossing arm to prevent breakage of the crossing arm due to impingement in either a frontal or rearward direction by a vehicle or other outside force. A pivot arm assembly allows a released movement of the crossing arm in reaction to frontal impingement and returns the crossing arm to the original and detent position subsequent to an impingement in order to maintain grade crossing protection. A spring return assembly, a shock absorber, and a detent plunger act to return the pivot arm assembly and attached crossing arm to a neutral detent position. The pivot arm assembly allows for rotation about a single pivot point of at least ±/−90 degrees relative to the longitudinal axis of the attached crossing arm.

A wedge barrier system includes a frame to be disposed within a foundation, for example a shallow foundation, a wedge barrier comprising fingers having an asset end pivotally connected to the frame at an asset side and a blocking member extending perpendicular to the fingers and connected at threat ends of each of the fingers and a drive mechanism located below the top side of the frame and connected to one of the fingers to move the wedge barrier between a non-deployed position with the wedge barrier disposed inside the frame and a deployed position with the blocking member located above the top side.

A wedge barrier system includes a frame to be disposed within a foundation, for example a shallow foundation, a wedge barrier comprising fingers having an asset end pivotally connected to the frame at an asset side and a blocking member extending perpendicular to the fingers and connected at threat ends of each of the fingers and a drive mechanism located below the top side of the frame and connected to one of the fingers to move the wedge barrier between a non-deployed position with the wedge barrier disposed inside the frame and a deployed position with the blocking member located above the top side.

An access control system is provided for controlling access to an area secured by perimeter protection defining a secure perimeter. The access control system comprises a portable container configured to be stored, transported and installed repeatedly as a closed container. The portable container is further configured to be operated repeatedly as an open container and closed container with a permanent barrier section constituted by the portable container and configured to secure a perimeter. At least one operational barrier section is configured to be operational in an open state to allow access through the secure perimeter and in a closed state to block access through the secure perimeter. The operational barrier section is configured to be fully contained within the closed container when not installed is also configured to operate outside of the portable container in either open or closed state and to change between open and closed state.

An access control system is provided for controlling access to an area secured by perimeter protection defining a secure perimeter. The access control system comprises a portable container configured to be stored, transported and installed repeatedly as a closed container. The portable container is further configured to be operated repeatedly as an open container and closed container with a permanent barrier section constituted by the portable container and configured to secure a perimeter. At least one operational barrier section is configured to be operational in an open state to allow access through the secure perimeter and in a closed state to block access through the secure perimeter. The operational barrier section is configured to be fully contained within the closed container when not installed is also configured to operate outside of the portable container in either open or closed state and to change between open and closed state.

The present subject matter provides a dissecting element that comprises a flat body having an upper side and a bottom side and opposite edges; a hinge on the bottom side wherein the hinge is connected to a surface, wherein the dissecting element is configured to move between an erected state in which the flat body is in an upright position and a horizontal state in which the flat body is adjacently lying on the surface. A plurality of dissecting elements can be provided on a portable ramp and several dissecting elements or ramps establish a barrier system. A method is also provided to prevent passage of vehicles using the dissecting elements.

The present subject matter provides a dissecting element that comprises a flat body having an upper side and a bottom side and opposite edges; a hinge on the bottom side wherein the hinge is connected to a surface, wherein the dissecting element is configured to move between an erected state in which the flat body is in an upright position and a horizontal state in which the flat body is adjacently lying on the surface. A plurality of dissecting elements can be provided on a portable ramp and several dissecting elements or ramps establish a barrier system. A method is also provided to prevent passage of vehicles using the dissecting elements.

A barricade includes a foundation frame, a finger wedge barrier, a hinge hingedly coupling the finger wedge barrier to the foundation frame, and an actuator mechanism coupled to the foundation frame and the finger wedge barrier. The finger wedge barrier is configured to rotate about the hinge between a stowed configuration and a deployed configuration, and the actuator mechanism is configured to rotate the finger wedge barrier between the stowed configuration and the deployed configuration. The actuator mechanism includes an actuator comprising a housing and a rod configured to reciprocally move in the housing, a first linkage having a first end rotatably coupled to the rod and a second end rotatably coupled to the finger wedge barrier, and a second linkage having a first end rotatably coupled to the rod and a second end rotatably coupled to the foundation frame.