blocking device (11) for a truck (2) includes at least one height-adjustable blocking arm (24), wherein the at least one blocking arm (24) includes a telescopable plunger (29). The plunger (29) is movable from below the truck (2) against a truck underride guard (5), whereby a rolling-away or driving-away of the truck is prevented.

A method of leveling a parked freight trailer at a loading dock, the method comprising: (a) positioning a portable stabilizing device at least partially underneath a forward portion of the parked freight trailer; (b) positioning a lift associated with the portable stabilizing device to bear weight of the forward portion of the parked freight trailer; (c) reorienting the parked freight trailer so a floor of the parked freight trailer goes from a substantially non-parallel orientation to an approximately parallel orientation with respect to a floor of the loading dock by repositioning at least one of the jack and a landing gear of the parked freight trailer; and, (e) maintaining the lift in a weight bearing position while goods are at least one of unloaded from or loaded onto the parked freight trailer.

The present invention relates to a system for preventing semitrailer collisions with a loading ramp (10). The system comprises a sensor (100) and guide block (200). The sensor (100) is configured for sensing when the rear end of a semitrailer (12) is approaching a loading ramp (10). The guide block (200) is adapted to be positioned on the ground, and is here shown positioned laterally to the opening of the loading ramp (10). The guide block (200) comprises wheel blocking means (210) configured for supporting the tread of a rear tire of the semitrailer (12). The wheel blocking means (210) is configured to move from a forwarded position relative to the loading ramp (10) to a retracted position relative to the loading ramp (10) as the semitrailer (12) is reversing towards said loading ramp (10). The sensor (100) is configured to send a blocking signal to the guide block (200) when the distance between the rear end of the semitrailer (12) and the loading ramp (10) is below a preset threshold, thereby blocking the movement of the wheel blocking means (210).

The present invention is a dock seal system for mounting on a structure wall. The system includes at least one side seal made up of a backer board having a hollow configuration and a foam seal attached to the backer board. A first side of at least one wear pleat is removably connected to the foam seal by at least one pleat fastener. This allows rapid, easy replacement of worn-out wear pleats.

A head pad assembly includes a plurality of head pad subassemblies pivotably joined along their lateral edge so as to allow vertical rotation of one subassembly relative to an adjoining subassembly when the head pad is actuated. At least one head pad subassembly includes a stiff upper backing portion and a lower compressible pad. The head pad assembly further includes one or more flexible hinges coupling the plurality of head pad subassemblies along their lateral edges to effect the vertical rotation. The head pad assembly further includes an actuator assembly configured to raise and lower the plurality of head pad subassemblies between an upper position and a lower, sealing position.

A commodity cart includes at least one storage tank and a transfer arm having a product chute, a tube portion coupled to the product chute. The tube portion ends in a product outlet. A hydraulic system is coupled to the transfer arm and configured to move the transfer arm to a product loading position wherein the product chute is positioned at a location on the ground. A controller is configured to determine a desired fill vehicle position and generate an indication of the desired fill vehicle position.

A repositionable trailer stabilizer for supporting at least a portion of a weight of a parked semi-trailer.

Methods, apparatus, systems, and computer-readable media are provided that relate to using one or more vision sensors to capture images of a loaded pallet in association with application of stretch wrap to the loaded pallet by an automated pallet wrapping machine. The images are used to generate an image-based identifier for the loaded pallet that is then used for pallet identification by mobile robots and/or other automated agents in a warehouse or other environment. In some implementations, the images are captured by the vision sensor when the pallet is in the wrapping area of the automated pallet wrapping machine and while the vision sensor and/or the pallet are rotating. In some implementations, the image-based identifier may be assigned to pallet attributes and/or a de-palletizing scheme of the loaded pallet.

Methods, apparatus, systems, and computer-readable media are provided that relate to using one or more vision sensors to capture images of a loaded pallet in association with application of stretch wrap to the loaded pallet by an automated pallet wrapping machine. The images are used to generate an image-based identifier for the loaded pallet that is then used for pallet identification by mobile robots and/or other automated agents in a warehouse or other environment. In some implementations, the images are captured by the vision sensor when the pallet is in the wrapping area of the automated pallet wrapping machine and while the vision sensor and/or the pallet are rotating. In some implementations, the image-based identifier may be assigned to pallet attributes and/or a de-palletizing scheme of the loaded pallet.

A loading-dock signaling system includes an internal signal light, an external signal light and a wheel chock having a base and a handle extending from the base. A chock signal light is positioned on the handle. The internal signal light, the external signal light and the chock signal light are in signal communication with one another to provide at least a plurality of illuminated indicia to an exterior dock area and an interior dock area. The exterior dock area and the interior dock area are separated by a dock door.