An enclosure for protecting a load comprises a truck bed to hold items, a front wall affixed to a proximal end of a width of the truck bed, and a rear wall affixed to a distal end of the width. A main header member runs along the length of the truck bed connecting the rear and front walls to form a central mounting point along a length of the truck bed that is disposed at a maximum height of the rear wall and the front wall. A passenger side gull wing door and a driver side gull wing door are mounted to the main header member by a plurality of hinges affixed to the main header member and which provide a movable joint for the gull wing doors. One or more hydraulic lift cylinders are operative to raise and lower a respective gull wing door.

An exemplary method relates to operating a door closer assembly including a closer body, a pinion rotatably mounted to the closer body, a motor including a motor shaft, and a bidirectional clutch connected between the pinion and the motor shaft. The method generally involves permitting, by the clutch, rotation of the pinion in each of a first direction and a second direction without transmitting rotation of the pinion in either direction to the motor shaft; sensing, with a sensor, a rotational position of the pinion; comparing, by a controller, the rotational position of the pinion with a desired rotational position; based upon the comparing, driving the motor to rotate the motor shaft; and by the clutch, coupling the motor shaft with the pinion in response to rotation of the motor shaft, thereby transmitting torque from the motor shaft to the pinion and urging the pinion toward the desired rotational position.

A movable wall system includes a plurality of movable wall panels including a first movable wall panel and a second moveable wall panel rotatably coupled together through at least one hinge. The movable wall system further includes a biasing system which biases the first movable wall panel and the second movable wall panel into an arrangement wherein a panel face of the first movable wall panel and a panel face of the second moveable wall panel are generally parallel.

A drive for a leaf of a door, window, or the like, including a mechanical energy store (16) configured to store energy during an opening movement of the leaf and expend energy during a closing movement of the leaf, an electric motor (18) operatively connected to the leaf via a motor shaft (20), the electric motor (18) operated as a generator to dampen the opening movement and the closing movement. The electric motor including a control unit configured to control the electric motor, wherein a drive behavior of the control unit is repeatedly and variably adaptable to a current need of a user.

An appliance includes a hinge module between a main body and a pull-down door. The hinge module includes a housing, a rotational axis member disposed in the housing serving as a center of rotation between the pull-down door and the main body, an inner link housing movably disposed in the housing that moves with the opening of the pull-down door in a direction of the rotational axis member, and a damper installed in the inner link housing, the damper including a piston and a cylinder and providing damping force according to a relative movement of the piston and the cylinder. Any one of the piston and the cylinder of the damper moves with the inner link housing and the other of the piston and the cylinder of the damper moves by a predetermined distance as the inner link housing moves and then is interfered by the housing so as not to move further, and the piston and the cylinder of the damper starts damping, wherein the predetermined distance corresponds to an opening angle of the pull-down door in which the damping is started.

Object release enclosures are disclosed. Methods of making and using object release enclosures are also disclosed.

An exemplary method relates to operating a door closer assembly including a closer body, a pinion rotatably mounted to the closer body, a motor including a motor shaft, and a bidirectional clutch connected between the pinion and the motor shaft. The method generally involves permitting, by the clutch, rotation of the pinion in each of a first direction and a second direction without transmitting rotation of the pinion in either direction to the motor shaft; sensing, with a sensor, a rotational position of the pinion; comparing, by a controller, the rotational position of the pinion with a desired rotational position; based upon the comparing, driving the motor to rotate the motor shaft; and by the clutch, coupling the motor shaft with the pinion in response to rotation of the motor shaft, thereby transmitting torque from the motor shaft to the pinion and urging the pinion toward the desired rotational position.

A combination door operator assembly and door, wherein the door operator assembly includes an operator unit mounted to the door on the pulling side or the pushing side thereof, an arm linkage having a driving arm and a driven arm, a mounting bracket preferably mounted on the frame to which the door is hinged, a rechargeable power storage pack having at least one of a rechargeable battery and one or more capacitors, and a controller, for monitoring a speed and a position of the door, wherein when the door moves faster than a predetermined speed, the motor is used as a generator to charge the rechargeable power storage pack and the speed of the door is reduced.

An exemplary method relates to operating a door closer assembly including a closer body, a pinion rotatably mounted to the closer body, a motor including a motor shaft, and a bidirectional clutch connected between the pinion and the motor shaft. The method generally involves permitting, by the clutch, rotation of the pinion in each of a first direction and a second direction without transmitting rotation of the pinion in either direction to the motor shaft; sensing, with a sensor, a rotational position of the pinion; comparing, by a controller, the rotational position of the pinion with a desired rotational position; based upon the comparing, driving the motor to rotate the motor shaft; and by the clutch, coupling the motor shaft with the pinion in response to rotation of the motor shaft, thereby transmitting torque from the motor shaft to the pinion and urging the pinion toward the desired rotational position.

A drive device for moving a leaf, in particular a door leaf or a window leaf, with an electric machine including an, in particular single, stator and an, in particular single, rotor, which can be rotated about a machine axis, and with a gear coupled to the electric machine. The gear has a first gear element, which can be rotated coaxially with the machine axis, with the first gear element being connected to the rotor in a rotationally-fixed manner.