A latch assembly connected to the drive unit of a bi-fold door for retaining the bi-fold door secure to a building has elongated straps attached to rotatable latch drums mounted on the outer ends of the drive shaft of the drive unit. Lift drums powered by a motor driven gearbox raise and lower the bi-fold door. Latch assemblies having springs attached to the straps maintain tension on the straps during the opening and closing of the bi-fold door.

A system for managing opening and closing a pocket door includes a spindle, an actuator, and brackets. The spindle extends along a longitudinal axis between first and second ends, and is configured to be coupled to the pocket door. The actuator is coupled to the spindle and is configured to cause the spindle to move axially along the longitudinal axis. The brackets are connected to the spindle at each end and are constrained from longitudinal motion relative to the spindle. The brackets are configured to affix the spindle to the pocket door. A bushing system couples each bracket to the spindle and is configured to dampen impact between the spindle and the brackets. For example, the bushing system may include lobed elements, made of a rubber material, that engage each other to transmit azimuthal forces. In some embodiments, another actuator is included to improve cycle life and redundancy.

The present invention relates to a sectional door operator system (1) for opening and closing an opening (2). The sectional door operator system (1) comprises a door (8) arranged to be moved between an open (O) and closed (C) position and comprising a plurality of horizontal and interconnected sections (9a-e), 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), wherein the plurality of horizontal and interconnected sections (9a-e) are connected to the door frame (3), a drive unit (10) mounted on a section (9e) of the plurality of sections (9a-e), wherein the drive unit (10) is arranged to move the sectional door (8) from the closed position (C) to the open position (O), wherein the drive unit (10) comprises at least a first motor (11a) and a second motor (11b) and wherein the first motor (11a) and the second motor (11b) are mounted at different vertical sides of the horizontal and interconnected section (9e), a control unit (20) being in operative communication with the drive unit (10) and configured to control the operation of the drive unit (10), and at least a first sensing element (30a) and a second sensing element (30b) configured to provide operational data of the first and second motor (11a, 11b) to the control unit (20).

A door actuator for opening and/or closing a door leaf includes a housing, an output shaft rotatably supported in the housing and with a cam disc, wherein the output shaft is formed for transferring torque onto the door leaf. A first element of motion is linearly movably guided in the housing with a first contact surface. A second element of motion is linearly movably guided in the housing with a second contact surface. A distancing arrangement is disposed in the housing. The cam disc is disposed between the two contact surfaces and for rolling on the two contact surfaces. In at least one delimiting range of angles of rotation of the output shaft, the distancing arrangement delimits the minimum distance between the elements of motion, and, in at least one free range of angles of rotation, does not delimit the linear mobility of the two elements of motion in relation to each other.

A furniture hinge for pivotally connecting at least two furniture parts to one another, including: at least two fastening portions which are pivotally connected to one another for fastening to the furniture parts, wherein the fastening portions can be moved relative to each other between a closed position and an open position, a spring device for pressing the fastening portions into the closed position and/or into the open position, a damping device for dampening a relative movement of the fastening portions, wherein the spring device is integrated into the damping device, wherein the damping device and the spring device are accommodated within a first and within a second housing portion, wherein the first and second housing portions, for performing the relative movement, are displaceably arranged relative to one another.

Guide rails with which a window regulator is provided are respectively fixed to a module plate. The guide rails are fixed, together with the module plate, to an edge of an opening portion provided at inward frames from an outward side in a vehicle width direction. Attachment portions which are capable of afterward attaching outward frames to the inward frames are provided, and attachment portions which are capable of afterward attaching a door outer panel to a door frame comprising the inward frames and the outward frames are provided.

An emergency door closing device that can be installed upon existing doors and hinges to automatically close doors in the response to smoke and fire. The improvements incorporated therein include a hinge cam pivot member that attaches to an existing hinge member of a door and produces a moment force about the existing hinge member allowing a reduced force necessary to pivot the door into a closed position. Further, a novel spring, cam, and lever system is incorporated to activate the moment force to close the door.

An external hinge is provided for pivotally connecting a door to a sidewall while obtaining at least 180 degrees of opening movement or degree of rotation. The external hinge is substantially concealed behind the sidewall and the door in a fully closed position of the door. In one embodiment, the external hinge comprises a first curved arm extending between a first pivot pin of a first part mounted on an interior surface of the sidewall and a second pivot pin of a second part mounted on an interior surface of the door. The external hinge further comprises a second curved arm extending between a third pivot pin of the first part mounted on the interior surface of the sidewall and a fourth pivot pin of the second part mounted on the interior surface of the door.

A system and portable device are provided for opening and closing sliding doors associated with conventional sliding doors as used in residences and businesses. The portable sliding door device attaches to a sliding door via a bracket, and moves along the same track used by the sliding door. The sliding door device can be initiated to move the sliding door to the open position through remote control, voice-activation, and proximity transmitters. The sliding door device can communicate with wireless routers and be remotely controlled and monitored by computers, netbooks and cell phones. The sliding door device has safety features, including cameras and speakers to ward off attempted break-ins.

A door lock with a reinforced fireproof effect includes a lock body mounted on a door and inner and outer operating units mounted to two sides of the door, respectively. The lock body includes inner and outer chassis made of ferrous material or stainless steel having a melting point higher than 1300° C. Inner and outer fixing members coupled with the inner and outer chassis are also made of ferrous material or stainless steel. Thus, these components of the door lock are less likely to melt during a fire, reducing the spreading speed of the fire.