Abstract: A fold down operator (10) is provided for a rotatable spindle (224) of casement window assembly (200). The operator (10) comprises a hub (12) and a handle (48). The hub (12) has a receiver (22) and an arm (32) extending from the receiver (22). The receiver (22) is adapted to connect to the spindle (224). The handle (48) has a cavity (112). The handle (48) is pivotally connected to the arm (32) such that the handle (48) is pivotable between a closed position wherein a portion of the receiver (22) is positioned within the cavity (112), and an open position, wherein the receiver (22) is outboard of the cavity (112).

Abstract: A door control assembly for a door closing an opening in a wall of a refrigerated compartment cooperates with an oblique hinge set to provide an opening and closing force on the door. The door control assembly includes a mounting plate attached to the door and a flange attached to a door frame. A fluidic control mechanism is coupled to a reciprocating arm pivotally attached to the mounting plate and is coupled to a ball stud on the door flange. A cable is also attached to the reciprocating arm and to a post on the door flange. The fluidic control mechanism and cable cooperate to exert counterbalancing forces on the door at various door open positions.

Abstract: An elongate spindle member having rigidity and stability against pressure and tensile loads as well as bending and torsional loads is made by winding-up a plurality of mutually interlocking chain links (1, 12), during axial advancement of the chain links, into a helical winding (5, 16) by a winding guide (14). The elongate spindle member, formed by the helical winding, extends between two objects, one of which is connected with the winding guide (14). The first turn of the helical winding is connected with a coupling member for connection with the other of the two objects. The helical winding is formed by drivingly connecting the chain links to a rotatable driving device in the winding guide and retaining each chain link in engagement with neighboring links in the same turn as well as adjacent chain links in neighboring turns.

Abstract: An automated garage door opener for opening an outwardly swinging door pivotally mounted about a vertical axis. The garage door opener includes a track, a trolley slidably mounted on the track, and at least one push bar having a first end and a second end. The push bar pivotally couples with the trolley at the first end and with the outwardly swinging door at the second end. A trolley coupling is provided for pivotally connecting the first end of the at least one push bar with the trolley. A door coupling for pivotally connecting the second end of the least one push bar with the outwardly swinging door is also provided. The door coupling is mountable on the outwardly swinging door. The push bar includes a spring biased slip joint for automatically adjusting the length of the push bar as the door opener is operated.

Abstract: A powered system to selectively position a vehicle liftgate at a multiple of positions intermediate a fully open and a fully closed position. A controller receives commands from a remote, such as a key fob, and/or from a selector located within the vehicle to selectively operate the liftgate to move the liftgate through a multiple of liftgate positions through a combination of button presses or selector positions.

Abstract: A structural latticework frame design, fixed end, cantilevered, or collapsible, on a horizontally openable window, wherein the lattice work frame is used for structural value in the open position. This design allows for the load from the glass and sash to be transferred through the latticework frame to the housing to carry the load, which simplifies the mechanism needed to open and close the window.

Abstract: An awning-type insulated glazing assembly includes an insulated glazing having a first glazing pane and a second glazing pane mounted parallel to and spaced from the first glazing pane. The first glazing pane has a marginal portion extending beyond the second glazing pane in at least a first direction in a plane of the first glazing pane. A mounting hinge defines a hinge axis and is secured to the insulated glazing for hingedly mounting the insulated glazing for awning-type movement about the hinge axis. A window regulator is secured to the insulated glazing for controlling the awning-type movement of the insulated glazing about the hinge axis.

Abstract: The invention is a door actuator and alignment apparatus for opening and closing the 15,000-pound horizontally sliding door of a storage overpack. The door actuator includes a ball screw mounted horizontally on a rigid frame including a pair of door panel support rails. An electrically powered ball nut moves along the ball screw. The ball nut rotating device is attached to a carriage. The carriage attachment to the sliding door is horizontally pivoting. Additional alignment features include precision cam followers attached to the rails and rail guides attached to the carriage.

Abstract: An awning-type insulated glazing assembly includes an insulated glazing having a first glazing pane and a second glazing pane mounted parallel to and spaced from the first glazing pane. The first glazing pane has a marginal portion extending beyond the second glazing pane in at least a first direction in a plane of the first glazing pane. A mounting hinge defines a hinge axis and is secured to the insulated glazing for hingedly mounting the insulated glazing for awning-type movement about the hinge axis. A window regulator is secured to the insulated glazing for controlling the awning-type movement of the insulated glazing about the hinge axis.

Abstract: An end play restriction wedge restricts the end play of a rotatable shaft with respect to a housing. The end play restriction wedge includes a female-wedge housing and a male wedge. The female-wedge housing has a U-shaped cross-section defined by an intermediate wall and outwardly extending side walls connected adjacent each end of the intermediate wall. The intermediate wall has a thrust plate surface along one side and an angled ramp along an opposite side. The angled ramp and outwardly extending side walls define a tapered aperture extending through the housing with an enlarged opening adjacent a first end of the housing. The male wedge is positioned adjacent the enlarged opening of the housing to be driven into the tapered aperture in response to an external force acting on an outer end of the wedge.

Abstract: A structural latticework frame design, fixed end, cantilevered, or collapsible, on a horizontally openable window, wherein the lattice work frame is used for structural value in the open position. This design allows for the load from the glass and sash to be transferred through the latticework frame to the housing to carry the load, which simplifies the mechanism needed to open and close the window.

Abstract: A door control device includes a door, a manual operation detecting device, a speed detecting device, a driving device, a clutch disposed between the driving device and the door for allowing or prohibiting a driving force to be transmitted from the driving device to the door, and a control device for controlling the clutch based on an operation state of the door detected by the manual operation detecting device and the door speed detected by the speed detecting device. The control device controls to disengage the clutch when the manual operation is detected by the manual operation detecting device, and engage the clutch when the door speed is determined to be equal to or greater than a first value and then becomes equal to or smaller than a second value, which is smaller than the first value.

Abstract: The opening-closing mechanism according to the present invention, consists of a bearing track (2), a spring (3) placed in said track (2), a pinion (4) providing its reciprocating movement on said spring (3); a motor drive shaft (5) providing the connection of said parts with the source of movement, a core bar (hub spindle) (6) to balance the spring (3) and two bearing bushes (7).

Abstract: An integrated rapid access entry/egress apparatus, system, and method for controlling and directing the movement of people or objects between unsecured and secured areas using a plurality of panels is provided. Sensors detect a person's approach and entrance into the system or apparatus. An approval means alerts a processor as to whether the person is approved or not approved. The panels move to direct approved persons to a secured area and not approved persons to an unsecured area so as not to impede the flow of traffic through the apparatus or system. The apparatus accommodates bi-directional traffic and provides an effective and efficient access system.

Abstract: The invention relates to an opening and closing system for a power sliding door, which has a locking controller, a sensor, a driving device, and an ECU. The locking controller transfers driving force of a handle to a door-closed state keeping unit or a door-open state keeping unit in order to control operation. The opening and closing system for the sliding door may be installed in a vehicle equipped with a sliding door having a door-open state keeping unit and allows safe operation of the vehicle and door.

Abstract: A opening and closing mechanism for a door or a window including a stationary primary track, a movable secondary track, an operating member with one end pivotally fixed in the primary track and an opposite end movable along the secondary track, and a guide engageable with a guide surface of the operating member. The guide surface is curved along at least a portion of a length thereof such that a tangent to the guide surface at a point where the guide surface crosses a longitudinal center line of the primary track forms an acute angle with the center line. The acute angle is substantially constant throughout the range of pivotal movement of the operating member.

Abstract: An operator for moving a closure, such as a window or a door rotatably mounted to a frame, between open and closed positions. The operator including first and second rotatable shafts, a fixed shaft, and a handle. The first and second rotatable shafts and the handle being rotatably mounted to the closure while the fixed shaft is non-rotatably mounted to the frame. The fixed shaft including a gear, the first shaft including a gear at each end thereof, and the second shaft including a gear at one end thereof and the handle at the other end thereof. One of the gears of the first shaft engaging the gear of the fixed shaft and the other one of the gears of the first shaft engaging the gear of the second shaft. To operate the closure operator, a user rotates the handle which rotates the second shaft causing the first shaft to rotate. The geared engagement of the first shaft to the fixed shaft causes the closure to rotate with respect to the frame.

Abstract: An actuator for a vent window of a motor vehicle wherein the drive mechanism interconnecting the output shaft of the motor and the pivot arm controlling the vent window comprises a first worm driven by the motor output shaft, a first worm wheel driven by the first worm, a second worm driven by the first worm wheel, and a second worm wheel driven by the second worm in driving the pivot arm. The first worm wheel is formed of a plastic material and the actuator further includes a coil spring mounted on the housing proximate the second worm wheel and operative to assist the second worm wheel in generating a sealing force sufficient to positively seal the vent window against a window seal of the motor vehicle.

Abstract: A drive device for a moveable part, in particular a hinged side window of a vehicle, with an actuating drive and with a threaded piece which is driven by the actuating drive and which meshes with an associated threaded piece, the associated threaded piece moving the part, there being provision, in order to reduce undesirable noises, for individual flights of at least one threaded piece (14) to be designed in such a way that they come to bear under the effective force in the respectively associated flights of the other threaded piece.

Abstract: An actuating system, comprising a base part and a moving part, which can be moved by a compressively preloaded piston/cylinder assembly that comprises a cylinder and a piston rod, wherein a piston on the piston rod divides the cylinder into two working chambers, wherein the base part has an externally powered drive device that stands in operative connection with the moving part and functions in opposition to the operating force of the piston/cylinder assembly, wherein a control system monitors the motion of the moving system and detects an obstacle when a parameter representing the motion deviates from a stored parameter by a threshold limit, wherein the actuating system in the unpowered state holds the moving part with the aid of a locking device, wherein the locking device is formed by a flow connection between the working chambers of the piston/cylinder assembly and a pilot valve for controllably blocking fluid flow through the flow connection.

Abstract: The invention relates to a drive device for a hinged side window (1) of a vehicle, said drive device having an actuating drive (8) acting on a operating lever (4) via a transmission element (9), the operating lever (4) being fastened at one end to the hinged side window (1) and at the other end so as to be fixed to the body, and a reduction gear being arranged in the region of the operating lever (4), there being provision, according to the invention, for the reduction gear to be a worm gear with an involute toothing.

Abstract: A passenger van is equipped with a drive mechanism for power operation of a slideable side door. The drive mechanism has an endless flexible drive member that travels in a closed loop which includes travel through a center track that supports and guides a hinge and roller assembly that is attached to the rear of the side door. A clutch is mounted on the hinge and roller assembly to clamp onto the flexible drive member for power operation. The clutch is operated by an actuator that includes a solenoid and a linkage between the solenoid and a moveable plate of the clutch. An electromagnetic clutch may be used as an alternative.

Abstract: A drive device for a hinged side window (1) of a vehicle, said drive device having an actuating drive (8) acting on a operating lever (4) via a transmission element (9), the operating lever (4) being fastened at one end to the hinged side window (1) and at the other end so as to be fixed to the body, and a reduction gear being arranged in the region of the operating lever (4), the reduction gear being a worm gear with an involute toothing.

Abstract: A non-aqueous electrolyte battery capable of quickly diffusing magnesium ions and improving cycle operation resistance, incorporating a positive electrode containing LixMO2 (where M is an element containing at least Ni or Co) as a positive-electrode active material thereof; a negative electrode disposed opposite to the positive electrode and containing a negative-electrode active material which permits doping/dedoping magnesium ions: and a non-aqueous electrolyte disposed between the positive electrode and the negative electrode and containing non-aqueous solvent and an electrolyte constituted by magnesium salt, wherein the value of x of LixMO2 satisfies a range 0.1≦x≦0.5.

Abstract: A mechanical power conversion device for receiving rotary power from a rotary power supply and delivering two independent power outputs, the conversion device having: a drive screw connectable to the rotary power supply, a drive nut engaging the drive screw to receive a drive nut axial force and drive nut torsion therefrom, the drive nut axial force being parallel to the drive screw and the drive nut torsion being about an axis of the drive screw. One of the two independent power outputs is connected to the drive nut to receive the drive nut axial force and the second is connected to the drive nut to receive the drive nut torsion so that power from the rotary power supply flows to either or both of the first independent power output and the second independent power output.

Abstract: An adjusting device serves for moving a moveable part into various positions, for example a side ventilator window of a motor vehicle. A servomotor (14) drives a spindle drive (18) which comprises essentially a spindle (24) having an external thread (26) and a sleeve part (28) which surrounds the spindle and has a corresponding internal thread (30). When acted upon by an external force, axial play in the region of the spindle drive (18) may lead to noise being produced; in order to avoid the noise, one (30) of the two threads comprises separate threaded parts (32, 36), and an elastically prestressable element (38) is provided with the aid of which an axial force can be produced between the two threaded parts (32, 36). The axial force causes the two threaded parts (32, 36) each to bear against opposite flanges of the external thread (26), so that the axial thread play is eliminated.

Abstract: Apparatus for opening and closing a deck lid of a vehicle body. An elongated rack is mounted in a housing for longitudinal movement. A rotatable pinion meshes with the rack to move the rack longitudinally in one direction or the other depending on the direction of rotation of the pinion. A reversible motor rotates the pinion in opposite directions. The deck lid is attached to a pair of arms pivoted to the vehicle body. A link has one end pivoted to the rack and the opposite end pivoted to one of the arms. The deck lid is moved to open position in response to longitudinal movement of the rack in one direction or to closed position in response to longitudinal movement of the rack in the other direction.

Abstract: A pinch sensing arrangement for a motor vehicle power liftgate mounted to the body of the motor vehicle and driven by a drive mechanism between an open position and a closed position. The pinch sensing arrangement includes a mounting track, a sensor and a control module. The mounting track is attached to the liftgate. The sensor is attached to the mounting track and elongated along at least one of the lateral sides of the liftgate. The sensor is operative for generating an electrical signal when compressed. The control module is in electrical communication with the sensor and is adapted to control the drive mechanism to articulate the liftgate to the open position upon receiving the electrical signal.

Abstract: The present invention, realized for the purpose of providing an automatic door-closing device capable of opening a door and also capable of performing door-closing actions properly and automatically, depending on the weight of the door, etc., without being exposed to outside nor spoiling the appearance of the door, comprises an automatic door-closing mechanism buried in an open upper frame, a guide rail mounted at the top of the door, and a link which moves along the guide rail while turning in pursuance of the opening/closing of the door, serially disposing, in the automatic door-closing mechanism, a power-converting mechanism, connected to one end of the link, for converting the rotating motion of the link due to the opening/closing of the door into a linear motion, an urging mechanism for urging in the door-closing direction, and a buffer mechanism for adjusting the closing speed of the door by controlling the flow rate of the fluid in one direction.

Abstract: Production-induced tolerances in the assembly of components involve very high outlay if, after the assembly, these components have to be located in a certain position in relation to one another. The novel tolerance-compensation device is intended to render the position of the components adjustable in relation to one another, assembly also being simplified.

Abstract: An orientable glazing for a vehicle having a glazing frame which has an attachment flange (3). The glazing includes a toughened window glass (4), a run of elastically deformable adhesive (18) along a part of the periphery of the window glass (4) for bonding the window glass (4) to the attachment flange (3), a profiled elastomer seal (12) laid against the window glass at least in that part of the periphery of the window glass (4) that is not covered by the run of adhesive (18), and an opening and closing mechanism (24), wherein the run of adhesive is along the front edge (5), along the upper edge, along the contour of the upper rear corner (20) of the window glass (4), and along an upper segment (A) of the rear edge (6) of the window glass (4), and wherein the opening and closing mechanism acts in the region of the lower rear corner (22) of the window glass (4).

Abstract: A vehicle window direct drive power actuator for pivoting a window outwardly of a vehicle body about an axis. The actuator comprises a reversible electric motor and a power transmitting gear train driven by the motor and including a rotational output gear. The rotational output gear includes stop circuit actuating member thereon for actuating a motor control circuit that controls energization of the reversible electric motor to thereby electrically control the open and closed positions of the window relative to the vehicle body. A window linkage assembly is mounted on the window in a manner to convert the rotational torque of the rotary output gear into an opening-and-closing force for the window. The linkage assembly converts the rotational torque of the rotary output gear in a one direction into a window opening force and a rotational torque in the opposite direction, caused by reversing the driving motor, into a window closing force.

Abstract: The present invention is directed to a floor for a passenger conveyor which includes floor rollers mounted below the floor, floor roller guide rails mounted upon a machine room for guiding the rollers, and a lift mounted in the machine room to be in contact with a bottom of the floor, wherein the floor can be easily opened and closed by one person without any other instrument in repair or maintenance, and wherein it is not needed to move the floor to another place after opening because the floor can stand upright in its place after opening the floor, so improving efficiency of working.

Abstract: A device for automatically closing a closure installation (such as a window or a door) includes a drive device, a traction mechanism, a spring, an actuating device and a locking device. The closure installation is mounted in a frame supported by a building. The traction mechanism is located between the closure installation and the frame, and is driven by the drive device to close the closure installation. The spring is tensioned when the closure installation is placed in the open position, and supplies the energy to the drive device which is required to close the closure installation. The actuating device is used to initially place the closure installation in the open position. The actuating device tensions the spring when the closure installation is placed in the open position. The locking device is initially released to permit the closure installation to be placed in the open position.

Abstract: An operator for controlling the movement of a window sash relative to a frame, including a base attachable to a frame; a linkage secured to the base and attachable to a window sash to control the movement of the window sash relative to a frame; a rotatable input shaft rotatably secured to the base and driveably engaging the arm, the input shaft having a female drive region formed therein; a drive member; a transmission shaft secured on one end to the drive member and having a male drive region disposable within and mateable with the input shaft female drive region to transfer rotation of the transmission shaft to the input shaft; and means for locking the transmission shaft to one of the base and the input shaft to hold the male drive region in mateable engagement with the female drive region.

Abstract: A mechanism for selectively securing a cover to a flange of a pressure vessel. The cover and flange each have openings that are aligned when the cover is in position facing the flange. The mechanism includes an anchor plate having a hole therethrough. A piston is slidable in a direction normal to the cover in alignment with the opening therethrough. A stud extends from to the piston with a stud head remote from the piston. The stud head fits through the opening of the closer of the cover and flange and through a wider portion of the anchor plate hole, and is positioned opposite the flange and cover from the piston when the cover is positioned over the flange. The stud head does not fit through a narrower portion of the anchor plate hole. A resilient member biases the piston away from the cover. A selectively activated actuator overcomes the resilient member and forces the stud head away from the flange and the anchor plate.

Abstract: A powered venting panel assembly includes a panel pivotable from a closed position to an open venting position, an automatic actuator, a linkage mechanism and a member coupling the automatic actuator to the linkage mechanism. In a further aspect of the present invention, the elongated member is a flexible cable. The window is a venting sunroof window in yet another aspect of the present invention.

Abstract: In a drive apparatus for a pivotable window pane held pivotally at one end thereof by a window frame through hinges, an output shaft driven by an electric motor through a reduction mechanism is coupled to a first link which in turn is coupled to the other end of the window pane through a second link and a hinge. The first link and the second link are so arranged that the joint therebetween moves along an arcuate path. The output shaft is positioned at a side closer to the hinge than the center of the arcuate path is. Further, the joint moves within the outer confine of the motor and the reduction mechanism.

Abstract: An operator for controlling the movement of a window sash generally pivotable relative to a frame about a first edge between open and closed positions includes a first arm having a first end slidably attachable to a second edge of the window sash opposite the sash first edge. A second arm has a first end also slidably attachable to the sash second edge, and is further pivotally secured to the first arm. A base is attached to a frame and includes a drive attached to the other ends of the first and second arms for pivoting the first arm relative to the second arm whereby the first ends and second ends of first and second arms are disposed together with a window sash in an open position and the first ends and second ends are spaced apart with a window sash in a closed position.

Abstract: A driven hinge (20) has fixed and movable hinge sections (21, 28) that are arranged to be selectively rotated relative to one another about an axis (x.sub.1 --x.sub.1) between first and second relative angular positions.

Abstract: A power window actuator including an electric motor, a reduction gear train for reducing rotational speed of the motor and a linkage mechanism connected to the gear train opens and closes a pivotable quarter window or a rear side vent. The rotation of the motor is mechanically stopped by structural members totally enclosed in a housing containing the motor and the gear train when the pivotable window comes to a fully opened or a fully closed position. An electric current supply to the motor is automatically discontinued by operation of a controller. An output shaft connected to a final stage gear of the speed reduction mechanism is extended outwardly from both sides of the housing. The linkage mechanism is composed of a pair of first links connected to the extended output shaft and a second link pivotably connected to the first links, so that the first links do not drop off from the output shaft without being fastened by a fastening member. Thus, the assembling process of the linkage mechanism is simplified.

Abstract: Racks (20) supported on a transfer cart (38) in a decontamination area (18) are loaded with contaminated articles. The carts are wheeled to a washer (14) into which the racks of contaminated articles are placed for washing. After washing, the racks are removed from the washer in a preparation and packing or clean room (12) and unloaded. The empty racks are moved through a rack return (28) back to the decontamination area. The rack return includes a rack supporting surface (32) on which glide strips (42) are mounted for sliding the racks from the clean room to the decontamination area. Guide strips (44) guide the racks to a pair of vertically pivoted polycarbonate doors (34) which the racks push open by engaging bumpers (58). After the rack has passed through the doors, a self-closure mechanism (60) closes the doors automatically. The rack return assembly includes stops (76, 78) on both sides for aligning a rack carrying cart of any of a plurality of sizes accurately with the rack return assembly.

Abstract: A pressure vessel according to the present invention includes a housing with a cylindrical upper portion having a plurality of radially extending catch members on its circumference and a lid for mating with the housing with a cylindrical side edge having a plurality of hook-shaped retaining members spaced about its circumference to correspond with the catch members. A control system operates a lift to lower the lid onto the housing. A drive cylinder connected between the lid and the housing is then enabled to rotate the lid relative to the housing about its central axis between a locked position and an unlocked position. Spacers mounted to the inner surfaces of the retaining members act as bearings, guiding the lid as it rotates. As the lid rotates toward its locked position, finger portions of the retaining members cam into underlocking engagement with the catch members to draw the lid onto the housing.

Abstract: A portable remotely controlled automatic door closing apparatus enables the door of a room or office to be closed from a remote location within the room or office by transmitting a signal to an actuator which exerts a force on the door to move it from an opened position to a closed position. The apparatus comprises a battery or AC powered motor which moves a lever arm into engagement with the door to rotate the door about its hinges from the open to the closed position. The apparatus is free standing and immobilized on the floor in a non-connected relationship thereto between an adjacent wall and the door in its open position. The apparatus is immobilized to prevent slipping by a floor-engaging mechanism, such as an adhesive, an anti-skid rubber material, or suction cups, or carpet engaging projections.

Abstract: A power window actuator including an electric motor, a reduction gear train for reducing rotational speed of the motor and a linkage mechanism connected to the gear train opens and closes a pivotable quarter window or a rear side vent. The rotation of the motor is mechanically stopped by structural members totally enclosed in a housing containing the motor and the gear train when the pivotable window comes to a fully opened or a fully closed position. An electric current supply to the motor is automatically discontinued by operation of a controller. To enclose the structural members for stopping the motor in the housing, a first projection is formed on a final stage gear of the gear train and a second projection on an inside surface of the housing. Both projections abut against each other to stop the motor when the pivotable window is driven to predetermined positions. Thus, the actuator is made small in size and at a low cost.

Abstract: A hydraulic closure system is disclosed for use in a motor vehicle that enables automatic opening and closing, as well as manual closing, of a closure pivotably mounted to an opening frame defining a closure opening in the motor vehicle. The system includes at least one hydraulic actuator assembly attached at opposite ends thereof to the closure and the opening frame, respectively. A motorized hydraulic pump inputs energy to the actuator to move the closure from the opened position to the closed position, and a biased energy storage system inputs energy to the actuator to move the closure from the closed position to the opened position. In a preferred embodiment, the pump is activated by manually generated movement of the closure from the opened position toward the closed position for a prescribed distance in more than a prescribed time. An obstacle detection mechanism detects obstacles interfering with closing of the closure based on monitored pressure in the system.

Abstract: A portable remotely controlled automatic door closing apparatus enables the door of a room or office to be closed from a remote location within the room or office by transmitting a signal to an actuator which exerts a force on the door to move it from an opened position to a closed position. The apparatus comprises a battery or AC powered motor which moves a lever arm into engagement with the door to rotate the door about its hinges from the open to the closed position. The apparatus is free standing and immobilized on the floor in a non-connected relationship thereto between an adjacent wall and the door in its open position. The apparatus is immobilized to prevent slipping by a floor-engaging mechanism, such as an adhesive, an anti-skid rubber material, or suction cups, or carpet engaging projections.

Abstract: A direct drive power window actuator for remote opening and closing of a pivotal quarter window of an automotive vehicle comprising a reversible motor, a power transmitting gear device operatively connected with the motor at one end and with a rotary shaft at the other end for rotating the rotary shaft, and a linkage for converting the rotational torque of the rotary shaft into an opening-and-closing force for the window.

Abstract: A foot pedal door opener device for side-by-side doors of a cabinet includes a right side foot pedal for opening a left side door of the side-by-side doors, and a left side foot pedal for opening a right side door of the side-by-side doors. The right and left side foot pedals are pivotably attached to pivot points on the cabinet. Actuator members are fixedly attached to the right and left side foot pedals. The actuator members are disposed to engage the opposite doors when a foot pedal is actuated, thereby opening the opposite door. The actuator members extend from one foot pedal toward the other foot pedal, such that a portion of the actuator members are in an overlapping, non-interfering relationship.

Abstract: An electrical window operator for opening and closing a window comprises at least one arm connected pivotally and detachably in a first end with a sash coupling member slidable side within a limited part of the length of the sash, said arm being pivotally connected at the other end with a second coupling member connected with the main frame. An operator housing arranged at the main frame accommodates an elongate drive shaft with a threaded section engaged by a nut element forming part of the second coupling member and an electrical drive unit in axial extension of the drive shaft.