The present invention relates to a sectional door operator system (1) for opening and closing an opening (2), comprising a door frame (3) comprising a first frame section (4) at a first side (5) of the opening (2) and a second frame section (6) at a second side (7) of the opening (2), a door (8) arranged to be moved between an open (0) and closed (C) position and comprising a plurality of horizontal and interconnected sections (9) connected to the door frame (3) at least a drive unit (10) mounted on a first section (9) of the plurality of sections (9), wherein the drive unit (10) is moveably connected to the first frame section (4) and the drive unit (10) is moveably connected to the second frame section (6), the drive unit (10) comprise at least one motor (11) connected to at least one battery (12) arranged to power the at least one motor (11), and the drive unit (10) is arranged to move the door (8) from the closed position (C) to the open position (0).

Methods and apparatus to wirelessly interlock doors are disclosed. A door system includes a user interface to receive interlock configuration data input from a user, the interlock configuration data to define an interlock condition to be satisfied before a first door is to undergo an operation, the interlock condition associated with a current state of a second door. The door system includes a first wireless transceiver to receive a signal from a second wireless transceiver associated with a second door. The method includes a door operation controller to at least one of (1) implement the operation of the first door in response to a request when the current state of the second door satisfies the interlock condition, (2) ignore the request, or (3) not execute the operation of the first door in response to the request when the current state of the second door does not satisfy the interlock condition.

A driving mechanism for sliding a windowed frame guided by an outer frame. The sliding frame is attached to two vertical racks which engage with two pinions. The pinions are connected with a joint axle driven by a couple of engaged bevel gearwheels connected to a crank or to an electric motor. The joint axle with the pinions can be housed in a recess carved at the lower plank of a static window's frame. A compact motorized option in which each pinion is coupled with a gearbox and both gearboxes are driven by a central electric motor also can be housed entirely in the static window's recess. The motorized options also include: a control unit for controlling the direction and speed of the sliding, two limit switches for stopping the frame at highest and lowest positions, an electrical overload sensor which detects sudden sliding obstructions and a burglar alarm.

A door braking system includes: a shaft; a brake pad configured to be mounted to the shaft; a plate for mounting on the shaft adjacent to the brake pad; a spring for urging the plate to the brake pad, the spring configured to be mounted on the shaft; a nut dimensioned and sized to be mounted on the shaft for adjusting an amount of force the spring urges the plate against the brake pad. A method of applying variable amount of braking force to a door includes: attaching a brake pad and brake plate to a shaft; configuring a spring to urge the brake plate against the brake pad; mounting an adjustment piece to the shaft; and configuring the adjustment piece to move axially on the shaft as the shaft rotates to thereby vary a force the spring urges against the brake plate.

A bifold door includes an upper panel including a top edge disposed proximate an anchor and a lower edge disposed distal of the anchor. The upper hinge, connecting the anchor to the top edge, permits rotation of the top edge of the upper panel but prevents elevation of the top edge of the upper panel. A first actuator, connected to the anchor and the upper panel, lifts the lower edge of the upper panel upwardly and outwardly, and effects lifting of the upper panel. A lower panel, separated from the upper panel, includes an upper edge disposed proximate the lower edge and a bottom edge disposed distal of the lower edge. A second actuator, connected to the upper panel and to the lower panel, lifts the upper edge of the lower panel upwardly and outwardly, and to effect lifting of the lower panel.

A bifold door includes an upper panel including a top edge disposed proximate an anchor and a lower edge disposed distal of the anchor. The upper hinge, connecting the anchor to the top edge, permits rotation of the top edge of the upper panel but prevents elevation of the top edge of the upper panel. A first actuator, connected to the anchor and the upper panel, lifts the lower edge of the upper panel upwardly and outwardly, and effects lifting of the upper panel. A lower panel, separated from the upper panel, includes an upper edge disposed proximate the lower edge and a bottom edge disposed distal of the lower edge. A second actuator, connected to the upper panel and to the lower panel, lifts the upper edge of the lower panel upwardly and outwardly, and to effect lifting of the lower panel.

An indoor unit of an air conditioner, which when a door cover is inserted in the inner side of a front outlet, a door cover moving module moves the door cover in the front-rear direction by the operation of a door cover motor, and when the door cover is moved to the rear of the front outlet, a door housing moving module moves a door cover housing along with the door cover, and thus the door cover may be moved completely to the outside of the front outlet.

An indoor unit of an air conditioner, which when a door cover is inserted in the inner side of a front outlet, a door cover moving module moves the door cover in the front-rear direction by the operation of a door cover motor, and when the door cover is moved to the rear of the front outlet, a door housing moving module moves a door cover housing along with the door cover, and thus the door cover may be moved completely to the outside of the front outlet.

A driving mechanism for sliding a windowed frame guided by an outer frame. The sliding frame is attached to two vertical racks which engage with two pinions. The pinions are connected with a joint axle driven by a couple of engaged bevel gearwheels connected to a crank or to an electric motor. The joint axle with the pinions can be housed in a recess carved at the lower plank of a static window's frame.

A compact motorized option in which each pinion is coupled with a gearbox and both gearboxes are driven by a central electric motor also can be housed entirely in the static window's recess.

The motorized options also include: a control unit for controlling the direction and speed of the sliding, two limit switches for stopping the frame at highest and lowest positions, an electrical overload sensor which detects sudden sliding obstructions and a burglar alarm.

Emergency actuating device, especially for vehicle doors, is provided. The device includes: a support base; a manual actuation element adapted to assume rest and actuation configurations; an electromagnetically driven locking mechanism adapted to lock the actuation element in its rest configuration; a protective shell adapted to assume a closed configuration in which the shell isolates the actuation element from the outer environment when the actuation element is in its rest configuration, and makes it impossible to reach the actuation element with a hand, and an open configuration, in which the actuation element can be reached with a hand to be brought from the rest configuration to the actuation configuration and vice versa; and an opening sensor adapted to generate an electric signal indicative of the open configuration of the protective shell, the signal being processable by an electronic control unit for controlling locking and/or unlocking of the locking mechanism.