Abstract: A fenestration unit includes a first glass unit, a first panel frame, a second glass unit, a second panel frame, a sill flashing, and a frame. The frame includes a header, jambs, and a frame sill including a first track and a second track. The first panel frame and the first glass unit are slidable along the first track when positioned in the frame. The second panel frame and the second glass unit are slidable along the second track when positioned in the frame. The sill flashing includes a base extending under the first and second tracks and a wall extending upward from the base to inhibit moisture intrusion through the fenestration unit. The frame sill is removable from the frame without disassembling the sill flashing, the jambs, and the header.

Abstract: Disclosed herein is a sliding door system including a motor, a driveshaft coupled to the motor, and a coupling mechanism fastened to the sliding door. The coupling mechanism is configured to convert rotation of the driveshaft into linear motion of the sliding door, such that movement of the coupling mechanism is directly correlated to movement of the sliding door. The sliding door system also includes a rotary encoder, a belt mechanically coupled to the coupling mechanism. The belt, as moved by the coupling mechanism, is configured to turn the rotary encoder as the sliding door moves, such that movement of the rotary encoder is directly correlated to movement of the sliding door and not directly correlated to movement of the motor and driveshaft.

Abstract: Disclosed is a sliding window for a building, including a frame, an opening member and a motorized drive device. The device includes an electromechanical actuator, a flexible element and a pulley for winding the flexible element. The pulley is rotated by an output shaft of the actuator. One end of a first strand of the flexible element connects to a first portion of the pulley. One end of a second strand of the flexible element connects to a second portion of the pulley. The pulley and the output shaft have the same axis of rotation. The device also includes a first angle transmission mechanism engaging the first strand, so as to guide the first strand relative to the first portion of the pulley, and a second angle transmission mechanism engaging with the second strand, so as to guide the second strand relative to the second portion of the pulley.

Abstract: Disclosed is a sliding window for a building including a motorized drive device and device for locking an opening member relative to a window frame in a locked chained position, having a first sub-assembly on the window frame and a second sub-assembly on the opening member. Also disclosed is a method for controlling the operation of such drive device, including, during a configuration phase, a step of determining reference positions of the second sub-assembly relative to the first sub-assembly. Moreover, the method includes, during a control phase: receiving an order to control the movement of an electromechanical actuator by an electronic control unit, and moving the opening member at a first set speed or a second set speed, as a function of the order received, at least one preceding order executed and the position of the second sub-assembly relative to the first sub-assembly, according to the reference positions.

Abstract: The improved sliding glass door or window includes several glass panels that are mounted free-floating in a split frame with an upper and lower section that permits the glass panels to form at least a portion of an external wall of a skybox or the like. The frame and the glass panels that form the portion of the external wall preserves the weatherproofing of the room while also maintaining the safety and security of the room. The glass panels include spaced apart stationary end panels and at least one movable intermediate panel and possibly more intermediate panels as desirable. The end panels each abut against respective room walls with a flexible strip to seal the sliding glass door or window to the walls. The movable intermediate panels may be moved interiorly toward a fixed wall to provide access to the exterior of the room. The intermediate panels seal against the stationary panels to seal the sliding glass door or window thereto.

Abstract: A sliding door system including a transom; at least one door leaf movable along the transom; an endless traction mechanism traction-resistantly connected to the at least one door leaf; a drive device for driving the endless traction mechanism, the drive device comprising a driven pulley guiding the endless traction mechanism; a rotational body torsion-resistantly connected to the driven pulley and rotatably supported by the transom, the rotational body comprises a coupling member; a locking bolt displaceably supported by the transom; and an electromechanical actuation device. The electromechanical actuation device is operable to cause the locking bolt to interlock with the coupling member of the rotational body to lock the at least one door leaf relative to the transom.

Abstract: A chain retaining device to retain a chain may include a chain mounting section to mount the chain and a handle section being connected to the chain mounting section to carry the chain retaining device. The chain mounting section may include a detachably connected chain holding device to adjust to different sizes chains. The chain holding device may be adapted form a friction connection to the chain mounting section. The chain holding device may include a handle to form the friction connection.

Abstract: A door suspension has a compact structure, in which first door rollers run in contact with a lower rail, and are rotatably supported to a first door roller supporting member that suspends a door; second door rollers are rotatably supported to swing members swingably connected to the first door roller supporting member, and are provided so as to be capable of coming into contact with an upper rail; a drive connection portion holds the door and connects the door to an open-close drive mechanism; and an elastic connection mechanism includes an elastic portion capable of changing the relative positions of the second door rollers and the drive connection portion, and connects the swing members to the drive connection portion. The second door rollers are installed between the first door rollers on the door leading end side and the door trailing end side.

Abstract: A multi-panel sliding door includes a main drive to directly move a leading door panel and includes an auxiliary drive to smoothly accelerate a lagging door panel. In some embodiments, the auxiliary drive includes a hanging weight that urges the lagging panel to its open position. In another embodiment, the auxiliary drive includes a belt and sheave arrangement attached to the lagging panel. The leading panel is coupled to move the belt around two sheaves as the leading panel moves relative to the lagging one. The belt's movement is limited by a bumper that is attached to one point on the belt and is constrained to travel between one of the sheaves and a fixed stop attached to a wall or the track. As the main drive starts moving the leading panel to its open position, the relative movement between the two panels causes the belt to move the bumper up against the fixed stop. From there, continued opening movement of the leading panel continues rotating the belt around the sheaves.

Abstract: A multi-panel sliding door includes a main drive to directly move a leading door panel and includes an auxiliary drive to smoothly accelerate a lagging door panel. In some embodiments, the auxiliary drive includes a hanging weight that urges the lagging panel to its open position. In another embodiment, the auxiliary drive includes a belt and sheave arrangement attached to the lagging panel. The leading panel is coupled to move the belt around two sheaves as the leading panel moves relative to the lagging one. The belt's movement is limited by a bumper that is attached to one point on the belt and is constrained to travel between one of the sheaves and a fixed stop attached to a wall or the track. As the main drive starts moving the leading panel to its open position, the relative movement between the two panels causes the belt to move the bumper up against the fixed stop. From there, continued opening movement of the leading panel continues rotating the belt around the sheaves.

Abstract: A fume hood for venting fumes comprising a cabinet, a venting system, and a split sash. The cabinet defines a working area. The cabinet has a front face which comprises an opening for providing access to the working area. The venting system is connected to the cabinet and vents fumes that collect in the working area of the cabinet. A split sash is movably secured to the front face of the cabinet for selectively opening and closing the opening to the working area of the cabinet. The split sash comprises at least two panels that move in unison between closed and open positions. Further, the fume hood comprises a bypass having an opening formed in the face of the cabinet for controlling the face velocity of the cabinet and means for selectively adjusting the size of the bypass opening.

Abstract: An elevator door mechanism that has a rotating shaft, a reversible driving means to turn the shaft, a linear drive actuator riding on and moving along the shaft, a resilient isolated pillow block mounted on spacers at each end of the shaft to dampen the noise of operation, two elevator doors attached to the linear drive actuator, and a switching means attached adjacent to one end of the rotating shaft to indicate the doors are closed and a switching means attached adjacent to the other end of the rotating shaft to indicate the doors are open, wherein the actuator is attached to the shaft with pitched bearings and the closing force of the linear actuator is controlled by pressure springs on the linear actuator.

Abstract: A serving window for installation in drive-through facilities such as fast food restaurants is disclosed. The window unit comprises two window members carried by rotatable shafts and set in a support frame, preferably of stainless steel, with an operating mechanism mounted within the sill of the support frame and operable electrically or manually by applying pressure to a bump bar mounted on the inside of the window frame or to a foot pedal linked to the operating mechanism by a hidden cable. The operating mechanism consists of a pivotal crossbar mounted horizontally on the support frame and secured on each end to an "L" shaped crank arm arrangement connected to a corresponding window shaft. When the mechanism is activated, the crossbar oscillates within the limited confines of the window frame and effects full opening of the windows in synchronism upon slight pressure applied to the bump bar or one of the other means of operation. Release of pressure on the bump bar automatically closes the windows.

Abstract: A pair of stacking gates or doors has a trailing gate and a leading gate which roll along parallel tracks between a retracted position with the gates approximately side-by-side and an extended position with the leading gate further from the retracted position than the trailing gate. Flexible roller chains are used to retract and extend the gates. A retraction chain has one end connected to an anchor fixed between the gates, is wrapped around a rear idler sprocket on the rear of the trailing gate, and is connected at the other end to the leading gate. An extension chain has one end connected to the fixed anchor, is wrapped around a front idler sprocket near the front of the trailing gate, and is connected at the other end to the rear of the leading gate. As the trailing gate is moved, the idlers move, changing the lengths of the reaches of chain and moving the leading gate twice as far as movement of the trailing gate.

Abstract: A domestic security closure in a form of a cabinet having a front opening (9) defined at the top of a framework (2) partially embedded in the floor and providing a guide for a pair of rigid steel doors (10,12) which can be lifted by use of a counter-weighted chain drive system (20,21,24,25) from a retracted position below floor level (8) to a raised position in which they are locked in place securely to close the cabinet, for instance using a mortise deadlock (29) and a locking bar (27). The flush floor enables entry of relatively bulky and valuable items without lifting.

Abstract: An upwardly-acting door structure is adapted to close an access opening of a body member, such as an automobile-carrying railroad car. The door structure includes a stationary track on either side of the opening, movable tracks mounted for upward and downward movement along the stationary tracks, an upper panel mounted on the movable tracks, a lower panel mounted to move upwardly and downwardly along the movable tracks at twice the speed, flexible chains arranged to interconnect the lower panel with the movable tracks, torsional springs arranged to counterbalance and support the aggregate weight of the raised movable tracks, and handles operatively arranged to raise and lower the movable tracks. The upper and lower panels may be raised to uncover the access opening, or lowered to cover the access opening.