A vehicle barrier gate system which is positioned above a roadway through which vehicles pass. Some of the various embodiments of the present disclosure include a gate comprised of an arm and barrier which is adjustable between a raised position in which a vehicle may pass and a lowered position in which a vehicle is prevented from passing. The gate may be movably connected to a ceiling or an overhead support structure positioned above the roadway. Various types of actuators may be utilized to adjust the gate along a linear and/or angular path between the raised and lowered positions. A control unit may be in communication with one or more sensors and/or an authorization system to control the actuator. The gate may include a breakaway mechanism which allows the gate to be manually raised or lowered in the event of actuator failure or a vehicle ramming through the gate.

A refrigerator appliance includes a cabinet defining a food storage chamber. A door is positioned on the cabinet and is movable between a closed position and an open position. A door opener includes a casing, a gear box, a sliding nut movable relative to the gear box, and a finger extending through the gear box. The finger is movable with the sliding nut. The door opener also includes a sensor. The finger extends outside of the casing to contact an inner surface of the door when the door is in the closed position and the door opener is in a zero position. The sensor is configured to detect movement of the door opener from the zero position.

A window frame has a sash and a panel that is disposed parallel to the sash, both of which are slidably disposed in the frame. A receiver is fixed at a first end of the frame. When the sash is in a first position, the sash is disposed within the receiver. When the sash is in a second position, the sash is disposed outside the receiver. A motor is fixed relative to the frame with a drive system connecting the motor to the sash or the panel. A control input is connected to the motor and is configured to receive a signal from a controller, a sensor, or a building management system.

A window frame has a sash and a panel that is disposed parallel to the sash, both of which are slidably disposed in the frame. A receiver is fixed at a first end of the frame. When the sash is in a first position, the sash is disposed within the receiver. When the sash is in a second position, the sash is disposed outside the receiver. A motor is fixed relative to the frame with a drive system connecting the motor to the sash or the panel. A control input is connected to the motor and is configured to receive a signal from a controller, a sensor, or a building management system.

The present invention includes various types of open-air display cases for displaying, storing, and/or vending food, beverages, or other products having a movable barrier that can be automatically positioned over an open front or side of such a unit to prevent access to the products therein when temperatures, component failure, lost power supply, or other variables affect the condition of the items stored in the display case, and methods of using such units.

A safety barrier assembly is provided for a parking garage is positioned in proximity to an opening for a VRC and includes a horizontal AGV safety beam and upper and lower pedestrian barriers having horizontal railings and vertical legs. The vertical legs are telescoped into openings at opposite ends of the AGV safety beam. The vertical legs of the upper pedestrian barrier are longer than those of the lower pedestrian barrier. The AGV safety beam can be moved vertically between a lower position where the AGV safety beam is substantially adjacent a floor of the parking garage and an upper position where the AGV safety beam is elevated from the floor. The horizontal railings of the pedestrian barriers are parallel to and spaced above the AGV safety beam in the lower position. However, the horizontal railings abut the AGV safety beam in the upper position.

A safety barrier assembly is provided for a parking garage is positioned in proximity to an opening for a VRC and includes a horizontal AGV safety beam and upper and lower pedestrian barriers having horizontal railings and vertical legs. The vertical legs are telescoped into openings at opposite ends of the AGV safety beam. The vertical legs of the upper pedestrian barrier are longer than those of the lower pedestrian barrier. The AGV safety beam can be moved vertically between a lower position where the AGV safety beam is substantially adjacent a floor of the parking garage and an upper position where the AGV safety beam is elevated from the floor. The horizontal railings of the pedestrian barriers are parallel to and spaced above the AGV safety beam in the lower position. However, the horizontal railings abut the AGV safety beam in the upper position.

Systems and associated methods for controlling operation of loading dock equipment are disclosed herein. In some embodiments, the system and associated methods can be used to control operation of loading dock equipment (e.g., a vehicle restraint, a dock door, a dock leveler, etc.) according to a preset sequence of operations. The system can include a display screen that sequentially presents a series of graphical control elements (e.g., touch-sensitive buttons) that enable operation of the loading dock equipment in an appropriate sequence. Additionally, the visual appearance and/or sequence of presentation of the graphical control elements indicate the proper sequence of selection to the user, thereby reducing user confusion and simplifying the operation of the loading dock equipment.

The present invention relates to an apparatus and method for driving a moveable closure, such as a garage door. In an initialisation process in a setup mode for the door operator for driving a moveable closure between open and closed positions, the apparatus allows selection of opening and/or closing speeds for the closure from a plurality of predefined stored driving speeds. This selection, or the range of stored driving speeds available for selection, is made in accordance with the type of closure to be driven, and this may be established automatically by detecting certain characteristics of movement of the closure as part of the initialisation process.

The present invention relates to an apparatus and method for driving a moveable closure, such as a garage door. In an initialisation process in a setup mode for the door operator for driving a moveable closure between open and closed positions, the apparatus allows selection of opening and/or closing speeds for the closure from a plurality of predefined stored driving speeds. This selection, or the range of stored driving speeds available for selection, is made in accordance with the type of closure to be driven, and this may be established automatically by detecting certain characteristics of movement of the closure as part of the initialisation process.