An overhead door system is disclosed, which includes a first track and a second track mounted on opposite sides of an opening. Each track has a vertical portion, a transition portion, and a horizontal portion, with the transition portion being between the vertical portion and the horizontal portion. An overhead door engages the first and second tracks on opposite sides of the overhead door and is movable along the first and second tracks between a closed, vertical position and a raised, horizontal position. A motor unit has a motor that is mounted above the horizontal portions of the first and second tracks. A rail is parallel to and disposed between the horizontal portions of the first and second tracks. The rail carries a carriage configured to move in a first direction to raise the overhead door and in a second, opposite direction to lower the overhead door. A connecting member is pivotally attached at one end near a top edge of the overhead door and attached at an opposite end to the carriage. A one-way bearing is disposed between the motor and the carriage. The motor, as it rotates in a first rotational direction, applies force to the carriage to move the carriage in the first direction to raise the overhead door. Nevertheless, owing to the one-way bearing, the motor, as it rotates in a second, opposite rotational direction, does not apply force to the carriage to move the carriage in the second direction to lower the overhead door. A kit to retrofit an overhead door system with a one-way bearing is also disclosed.

A mechanism for opening and closing an overhead door includes a drive loop coupled to the overhead door, a motor with a drive shaft and a drive wheel for driving the drive loop. A one-way bearing couples the drive shaft to the drive wheel, which one-way bearing is configured to transmit torque from the motor to the drive wheel, as the motor rotates the drive shaft in a first rotational direction to raise the overhead door, and configured so that torque is not transmitted to the drive wheel as the motor rotates the drive shaft in a second rotational direction opposite the first rotational direction. As a result, the motor applies torque through the one-way bearing to raise the overhead door and to support the weight of the overhead door while lowering the overhead door.

A vertical pivoting gate operator for positioning a gate between an open position and a closed position is provided. The gate operator includes a motor drive assembly including a motor and a linkage assembly mechanically connecting a motor output to the gate such that in response to actuation of the motor, the linkage assembly transmits an opening force to positioning the gate toward the open position, and a closing force, for positioning the gate toward the closed position. A counterbalance assembly including a biasing member is operable to release stored energy against an input link to rotate a gate arm shaft so as to urge the gate toward the open position and to increase stored energy in response to rotation of the gate traveling toward the closed position to act against the gate as it approaches the closed position.

A panel system for closing and opening a merchandise space of a refrigerated cabinet includes multiple movable panels. Each panel is movable between an open position and a closed position. Two of the panel are connected to form a pair of panels. A return mechanism is arranged above the pair of panels and a pulling mechanism is guided over the deflection mechanism and connects the two panels in the pair. Each panel of the pair is disposed with respect to the deflection mechanism so that a movement of one panel in a first movement direction effectuates a movement of the second panel in a second movement direction. A refrigerated cabinet includes such a panel system.

A cover system for covering a vehicle tow hitch connector includes at least a first retention member including a first retention slot, and a first door support coupled to the first retention member. A second door support is positioned opposite the first door support. A door is rotatably coupled to the first and second door supports. The door includes a first retention projection structured to be received in the first retention slot to position the door in a closed orientation.

A system for controlling one or more motorized windows. The motorized windows each have a processor, a network device and wireless transmitters enabling connection via a network. The network is controlled by one or more mobile devices which receive user input. The mobile devices wirelessly connect to a local area network (LAN) via a hub. One or more hubs are connected via the LAN. The motorized windows are networked via a personal area network (PAN). The hubs convert the LAN protocol to the PAN protocol. Sensors send sensor data along with real time weather data to the processor. The processor uses this sensor data to update charts and schedules in memory, then sends commands to the controller based on these updated charts and schedules according to user defined and factory set parameters. The system includes both local and cloud-based control.

An actuator includes first and second structural units arranged independently of one another. An engagement means is arranged in the first structural unit. A drive motor is in driving relationship to the engagement means and arranged in the first structural unit. An anti-backbend chain is in engagement with the engagement means, and a chain depot is arranged in the second structural unit.

In accordance with one aspect of the present disclosure, a movable barrier operator including a body, a motor supported by the body, and a rotatable drive supported by the body and configured to be connected to an elongated driven member. The movable barrier operator further includes a shaft supported by the body and a compound gear mounted on the shaft. The compound gear includes a first gear operably coupled to a drive shaft of the motor and a second gear operably coupled to the rotatable drive. The first and second gears connected such that turning of the first gear causes turning of the second gear.

A casement window operator includes a linear input mechanism configured to be mounted to a stationary frame of a casement window, a linear to rotary motion converter operably coupled to an output of the linear input mechanism, a gear reducer operably coupled to an output of the rotary motion converter, and a sash arm operably coupled to an output of the gear reducer to rotate in conjunction with the output of the gear reducer. The sash arm is configured to extend from the stationary frame of the casement window to a rotatable window sash of the casement window.