Methods, systems, and apparatus, including computer programs encoded on computer storage media, for monitoring events using a Virtual Inductive Loop system. In some implementations, image data is obtained from cameras. A region depicted in the obtained image data is identified, the region comprising lines spaced by a distance that satisfies a distance threshold. For each line included in the region: an object depicted crossing the line is determined whether to satisfy a height criteria indicating that the line is activated. In response to determining that an object depicted crossing the line satisfies the height criteria, an event is determined to have likely occurred using data indicating (i) which lines of the lines were activated and (ii) an order in which each of the lines were activated. In response to determining that an event likely occurred, actions are performed using at least some of the data.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for monitoring events using a Virtual Inductive Loop system. In some implementations, image data is obtained from cameras. A region depicted in the obtained image data is identified, the region comprising lines spaced by a distance that satisfies a distance threshold. For each line included in the region: an object depicted crossing the line is determined whether to satisfy a height criteria indicating that the line is activated. In response to determining that an object depicted crossing the line satisfies the height criteria, an event is determined to have likely occurred using data indicating (i) which lines of the lines were activated and (ii) an order in which each of the lines were activated. In response to determining that an event likely occurred, actions are performed using at least some of the data.

A vehicle barrier apparatus and corresponding methods include a base and a vehicle receiving member coupled to the base and having proximal and distal ends. Also included is a deployable element rotatably coupled to the base and coupled to the vehicle receiving member at a mechanical coupler located closer to the distal end than to the proximal end. The deployable element is configured to receive a transfer force, from the vehicle receiving member, via the mechanical coupler, responsive to the vehicle receiving member receiving an applied force from a vehicle at the proximal end. The deployable element configured to deploy from a stored orientation to a deployed orientation responsive to the transfer force. Accordingly, vehicle force can be transferred and used to deploy the device effectively in a self-triggered configuration without hazards of stored energy.

A barrier for use with a gate assembly includes a quadrilateral frame comprising top and bottom horizontal members and first and second vertical members, a horizontal gate beam extending longitudinally from a buttress end to a latch end, the gate beam constructed of a W-beam having a web oriented horizontally and extending laterally between first and second flanges, a first stop connected to the buttress end and extending perpendicular to the first and second flanges, a first latch connected to the latch end, the first latch forming a hook comprising a shank extending longitudinally from the latch end, a point located opposite the shank, a gap between the point and the shank, and an opening between the point and the latch end, and the gate beam connected to the frame between the top and bottom horizontal members.

A safety device that prevents tripping over forklifts or other material handling equipment includes a stand attachable to the horizontal fork and a pole of adjustable length extending upward. The device further includes a retractable barrier extending from the top of the pole across to the vertical mast of the forklift. The device preferably incorporates magnets which attach it to an idle forklift as described, and also attach the collapsed device to other portions of the vehicle when in use moving goods. This keeps the device conveniently available for use when the forklift is idle. And when the barrier is erected, nearer eye level, well above the floor, despite the forks sticking out in the aisle, persons passing by are much more likely to notice the forks and step around them.

A safety device that prevents tripping over forklifts or other material handling equipment includes a stand attachable to the horizontal fork and a pole of adjustable length extending upward. The device further includes a retractable barrier extending from the top of the pole across to the vertical mast of the forklift. The device preferably incorporates magnets which attach it to an idle forklift as described, and also attach the collapsed device to other portions of the vehicle when in use moving goods. This keeps the device conveniently available for use when the forklift is idle. And when the barrier is erected, nearer eye level, well above the floor, despite the forks sticking out in the aisle, persons passing by are much more likely to notice the forks and step around them.

A barrier member including: a support; a first engagement member coupled to the support; and a translatable column defining a longitudinal axis, wherein the translatable column is rotatably and translatably mounted relative to the support, wherein the translatable column is translatable between: a first position in which the translatable column and the first engagement member are spaced apart from one another such that the translatable column is rotatable about said longitudinal axis; and a second position in which the translatable column and the first engagement member are engaged to prevent rotation of the translatable column about said longitudinal axis.

Impact resistant retractable safety barriers are disclosed. An apparatus includes a support member, a flexible elongate member to extend and retract through an opening in the support member, and a stop member including a region to interface with the flexible elongate member. The stop member engages with structure of the support member surrounding the opening to limit a distance with which the flexible elongate member extends through the opening. The stop member cooperates with the structure of the support member to maintain a gap between a surface of the region of the stop member and the structure of the support member. A width of the gap is equal to or greater than a thickness of the flexible elongate member.

Impact resistant retractable safety barriers are disclosed. An apparatus includes a support member, a flexible elongate member to extend and retract through an opening in the support member, and a stop member including a region to interface with the flexible elongate member. The stop member engages with structure of the support member surrounding the opening to limit a distance with which the flexible elongate member extends through the opening. The stop member cooperates with the structure of the support member to maintain a gap between a surface of the region of the stop member and the structure of the support member. A width of the gap is equal to or greater than a thickness of the flexible elongate member.

A veneer panel may include a face veneer, a first inner layer bonded to the face veneer, a second inner layer bonded to the first inner layer, and a thermally conductive backing layer bonded to the second inner layer. The first inner layer and the second inner layer are treated with a flame retardant. The first inner layer is disposed between the face veneer and the second inner layer, and the second inner layer is disposed between the first inner layer and the thermally conductive backing layer.