Examples described herein provide a computer-implemented method for thermal lockout for a motor of a gate crossing mechanism. The method includes monitoring a motor current across a sense resistor of the motor. The method further includes determining a present thermal capacity unit (TCU) at a time interval based on the motor current across the sense resistor. The method further includes determining whether the motor is at a thermal limit by comparing the present TCU to an expected TCU. The method further includes responsive to determining that the motor is at the thermal limit, causing initiating a hard fault.

A pass blocking apparatus includes a mechanism for permitting the intentional release of a blocking bar from a closed position to an evacuation position as necessary. The apparatus includes a blocking bar, hinge connection unit, biasing unit, and resistance unit. The blocking bar extends perpendicularly to the driving shaft axis, thereby swinging vertically by driving shaft rotation. The hinge connection unit connects the blocking bar to the driving shaft permits the blocking bar to swing horizontally from the closed to the evacuation position. The biasing unit applies a biasing force to the blocking bar, swinging the blocking bar toward the evacuation position. The resistance unit holds the blocking bar in the closed position against the biasing force. The resistance unit includes an electromagnetic device and a magnetic material, and generates the resistance force from a magnetic force by the electromagnetic device that attracts the magnetic material.

A pass blocking apparatus includes a mechanism for permitting the intentional release of a blocking bar from a closed position to an evacuation position as necessary. The apparatus includes a blocking bar, hinge connection unit, biasing unit, and resistance unit. The blocking bar extends perpendicularly to the driving shaft axis, thereby swinging vertically by driving shaft rotation. The hinge connection unit connects the blocking bar to the driving shaft permits the blocking bar to swing horizontally from the closed to the evacuation position. The biasing unit applies a biasing force to the blocking bar, swinging the blocking bar toward the evacuation position. The resistance unit holds the blocking bar in the closed position against the biasing force. The resistance unit includes an electromagnetic device and a magnetic material, and generates the resistance force from a magnetic force by the electromagnetic device that attracts the magnetic material.

A vehicle stopping device includes a casing configured as an open enclosure having an open side, vertical side walls, a horizontal top wall and a horizontal bottom wall forming an interior space of the open enclosure. A pair of caltrop bars are configured to be securely stored within the interior space of the casing in a stored position, and are configured to be activated from the stored position to a deployed position in which the first and second caltrop bars extend out of the interior space of the casing through the open side thereof for positioning on opposite sides of a vehicle tire. Each of the caltrop bars being formed of a bar and one or more caltrops arranged along the bar for puncturing and deflating the vehicle tire when the vehicle tire is driven over the caltrop bars.

A vehicle stopping device includes a casing configured as an open enclosure having an open side, vertical side walls, a horizontal top wall and a horizontal bottom wall forming an interior space of the open enclosure. A pair of caltrop bars are configured to be securely stored within the interior space of the casing in a stored position, and are configured to be activated from the stored position to a deployed position in which the first and second caltrop bars extend out of the interior space of the casing through the open side thereof for positioning on opposite sides of a vehicle tire. Each of the caltrop bars being formed of a bar and one or more caltrops arranged along the bar for puncturing and deflating the vehicle tire when the vehicle tire is driven over the caltrop bars.

A vehicle gate assembly includes a latch post comprising a J-slot formed along a face of the latch post, the J-slot comprising a primary vertical slot extending from an open top end of the primary vertical slot at a top side of the latch post to a bottom end of the primary vertical slot, a horizontal slot extending from the bottom end toward the first post, and the horizontal slot comprising a trap extending toward the top side of the latch post and a beam movable between an open position to allow vehicles to drive through a vehicle passage and a closed position blocking the vehicle passage, and a pin extending from the second beam end, the pin disposed in the J-slot when the beam is in the closed position.

A vehicle gate assembly includes a latch post comprising a J-slot formed along a face of the latch post, the J-slot comprising a primary vertical slot extending from an open top end of the primary vertical slot at a top side of the latch post to a bottom end of the primary vertical slot, a horizontal slot extending from the bottom end toward the first post, and the horizontal slot comprising a trap extending toward the top side of the latch post and a beam movable between an open position to allow vehicles to drive through a vehicle passage and a closed position blocking the vehicle passage, and a pin extending from the second beam end, the pin disposed in the J-slot when the beam is in the closed position.

Apparatus and methods for assembling, installing, and operating a manually operated gate (e.g., a safety gate) are provided. The manually operated safety gate can include a gate frame and a spring assembly. The gate frame can include a proximal upright member, a distal upright member, an upper arm, and a lower arm. The proximal upright member can be anchored to a stationary surface. The upper arm and lower arm can be pivotably coupled to the proximal upright member and distal upright member to form a parallelogram. The manually operated gate can be configured to pivot between an open position and a closed position at a constant angular velocity. The gate can freely pivot to the closed position from a self-close position. A kit can contain the required structural components and instructions and can be used to assemble the manually operated gate assembly.

Apparatus and methods for assembling, installing, and operating a manually operated gate (e.g., a safety gate) are provided. The manually operated safety gate can include a gate frame and a spring assembly. The gate frame can include a proximal upright member, a distal upright member, an upper arm, and a lower arm. The proximal upright member can be anchored to a stationary surface. The upper arm and lower arm can be pivotably coupled to the proximal upright member and distal upright member to form a parallelogram. The manually operated gate can be configured to pivot between an open position and a closed position at a constant angular velocity. The gate can freely pivot to the closed position from a self-close position. A kit can contain the required structural components and instructions and can be used to assemble the manually operated gate assembly.

A variety of systems, methods, and compositions are disclosed, including in one method, a security arm barrier system, the system comprising: a drive stanchion mounted to a first substructure; an arm barrier coupled to the drive stanchion, wherein the arm barrier further comprises: a first member, wherein a proximal end of the first member is coupled to the drive stanchion; a second member, wherein a proximal end of the second member coupled to a distal end of the first member; and an articulating joint that couples the first member and the second member, and an energy absorbing material disposed within the first member and the second member; and a receiver stanchion mounted to a second substructure capable of receiving a distal end of the second member.