Abstract: A security screen assembly installable in the jamb of a building window or door for preventing unauthorized access therethrough, while allowing for quick and easy egress, is provided. The security screen assembly includes a screen with a height, a width and side edges, and a frame which is dimensioned to fit within the jamb of a building, and which is attachable to the jamb. The frame defines an opening having a height substantially equal to the height of the screen and having a width which is less than the width of the screen. A channel is formed on a rear surface of the frame surrounding the opening. The channel accommodates the screen such that the channel prevents the screen from being swung inward.

Abstract: A motor-driven window lifter for a motor vehicle with electronic means to protect against entrapment of body parts in the window opening with at least one spring in the line of force between the drive unit (such as an electric motor or gear) and the window pane is characterized in that the blocking force of the spring corresponds at a maximum to the sum of the displacement force anticipated and the admissible entrapment force and that the spring characteristic when an initial load is exceeded has a decreasing, preferably negative curve, such that the spring enables a relatively long path of the drive unit when the initial load is exceeded.

Abstract: A device for sealing between two assembly parts that are movable relative to one another, especially between two damper blades or a damper blade and a stop of a flue gas armature. The device includes an elastic sealing element formed by a spring-steel strip, which contains two flat clamping edges arranged next to one another in a parallel fashion and pointing to the same side. The clamping edges are secured by a clamping device to one of the assembly parts. The spring-steel strip also has a sealing zone that is curved in an arc-shaped manner. The sealing element rests, with a resting surface located outside of the clamping edges, flat on the flat supporting surface of a supporting element. The supporting element is also securable by the clamping device to one of the assembly parts.

Abstract: A pane guide for a spherically curved window pane which can be lowered in a door shaft of a vehicle door and forms a component part of an imaginary barrel shaped sleeve surface along the longitudinal direction of the vehicle, and which can be moved in the direction of the longitudinal axis of the vehicle by a double-strand cable window lift mounted in the door shaft. The guide rails have a first and second curvature adapted to the window pane curvature in the transverse direction of the vehicle so that a swivel movement about a swivel point spaced from a guide edge of the window pane in the X-direction is additionally superimposed on the displacement movement of the window pane. The imaginary barrel-shaped sleeve face on which the window pane is displaced swivels with the window pane and during the displacement movement between the extreme positions there are always three corner points of the window pane lying on the barrel-shaped sleeve face.

Abstract: A integrally formed synthetic resin lower sash for an automotive vehicle door structured so as to be disposed within a door panel and guide a window glass received within the door panel in a vertical direction. In order to reduce a frictional sound generated between a moving glass and the lower sash, the lower sash is constituted by an outer wing, an inner wing and a frame surrounding an edge portion of the window glass, a plurality of extending portions projecting toward the surface of the opposing window glasses and intermittently disposed to a direction of guiding the window glass are provided in the outer wing and the inner wing, and a projecting piece slidably in contact with each of inner and outer surfaces of the glass is extended in such a manner as to continue from the expanding portion, thereby forming a glass guide.

Abstract: A mullion latch is provided that will firmly secure a mullion post and yet permit the mullion post to be readily removable and reinstallable and which provides a tamper proof and secure vandal resistant mullion latch and post which is easy to install and remove. The mullion latch is used in conjunction with a double door opening that is designed to accommodate two single doors making use of the mullion post for their locking mechanisms, such as panic rim devices. Adapters are provided which may be used with the mullion latch in combination with a variety of mullion shapes, extruded or otherwise, that are employed in double door mullion assemblies, thereby negating any need to replace existing mullion posts when being adapted to employ the mullion latch. An assembly kit is provided for retrofitting or adapting existing mullion posts to be readily removable and reinstallable which includes the mullion latch combined with an adapter for use with a variety of existing moveable hollow core mullion shapes.

Abstract: A rapidly adjustable man-hole cover seat for sustaining the alignment of a road surface and a man-hole cover, comprises a base, an adjustable seat, a man-hole cover and a cruciform hole fixing frame, a stud block, a supporting block, etc. In a large distance adjustment, the inner rim of the adjustable seat is designed so that it may be penetrated by adjustable screws. Thus the adjustable seat may be adjusted and moved for aligning with the road surface. In another small distance adjustment, a cruciform hole fixing frames are installed on the bottom of the adjustable seat for being penetrated by screws so as to be installed on the base. Further, supporting blocks are installed for distributing the weight borne by the adjustable seat, the stud block and screws so that the man-hole cover may suffer a heavy pressure and the steadiness of the man-hole cover and road surface as cars are passing is sustain.

Abstract: A hatch opening and closing device for a vehicle includes a cover, which is adapted to cover and seal an opening in a vehicle and to pivot between an open position and a closed position, and at least one locking device, which is adapted to move between an unlocked position and a locked position. The locking devices includes an engagement surface for engaging the cover when the cover is in the closed position thereby locking the cover in the closed position. The cover is releasably coupled to the locking device by a lost motion device over a first range of motion and decoupled from the locking device over a second range of motion so that the locking device can be independently moved from the cover. The hatch opening and closing device further includes a driver, which pivots the locking device and cover between the unlocked position and the locked position and the open position and the closed position, respectively.

Abstract: A door opener includes a motor in mechanical communication with a door, a first gas source for powering the motor, and a control system interposed to the first gas source and the motor. The control system includes a first pilot valve communicating with the first gas source at an inlet port and the motor at a motor port. The first pilot valve also communicates with a first flow control valve at an exhaust port. The first flow control valve regulates the speed of the door during closing and communicates with the first pilot valve at an inlet port and communicates with the atmosphere at an exhaust port.

Abstract: A device for closing road wells in vehicle and pedestrian zones is provided, said device comprising a support frame (2) defining an access opening (4) and a plate closing element (5) rotatably engaged with the support frame (2) about a hinging axis (6) so as to be movable between a raised open position and a lowered closed position.

Abstract: A device for protecting door hardware which projects from a planar surface of a door from damage by a cart being moved past the door. The device is a heavy steel bar, rectangular in cross section, which is bent in a U-shape having two legs and a central planar height portion. The bend on each end between the height and the leg has two complementary acute angles to form a 90.degree. bend.

Abstract: A method of attaching a vehicle door handle to the outer skin of a vehicle door, and a door handle assembly to facilitate such attachment. The door skin is provided with a pair of apertures and a plurality of lugs are provided on an inner planar face of the door handle assembly together with a spring clip proximate one end of the planar surface. The door handle is mounted on the door by passing the lugs through the apertures while deflecting the spring clip inwardly and thereafter sliding the door handle assembly over the door skin to move web portions on the lugs into wedging engagement with respective edge portions of the apertures while moving the spring clip into latching engagement with a transverse edge portion of one of the apertures. Flange portions on the lugs are simultaneously positioned beneath respective inner surfaces on the skin to complete the attachment of the door handle to the skin.

Abstract: A door controlling device for opening and closing a door in a wall has a first arm, one end of which is mounted to the wall and the other end of which is pivotally attached to the second end of a second arm. The first end of the second arm is pivotally attached to the top of a door and is adapted for rotation about a horizontal axis at the first end thereof. An electric motor attached to the device has a shaft which drives a gear train, and an output shaft of the gear train is connected to the input end of an electrically operated clutch. The output shaft of the clutch is connected to the first end of one of the arms such that upon the simultaneous engagement of the clutch and the energizing of the motor, that arm will be rotated about the horizontal axis at the first end and will cause the door to be opened or closed.

Abstract: A shutter frame member is comprised of an elongated plastic extruded body element having opposed parallel longitudinal side edges in which is formed a connector for removable connection thereto of an elongated edge adaptor. The connecting cavity is provided with a plurality of elongated connecting channels on opposed side surfaces thereof. The edge adaptor is provided with a flange which has ribs for selective engagement with the channels provided in the elongated edge cavity of the body whereby to provide an adjustment of the width of the shutter frame member.

Abstract: A hands-free door opening device for attachment to a sliding door so that the sliding door can be opened or closed by a person using his or her foot. The device has a base section having a surface adapted for placement against the sliding door, securing means for rigidly securing the base section to a lower portion of the sliding door, and a rigid forwardly extending section connected to and extending from the base section in a direction away from the placement surface. The forwardly extending section extends a distance sufficient to allow a person's foot to engage the extending section to slide the door when the device is secured to the door. The device can be secured to the sliding door with double sided tape, or with screws, or with both.

Abstract: Automatic door system for mass transit vehicles utilizing a linear induction motor for powering door panels from open to closed. A power actuated panel lock provides positive panel locking and unlocking through actuating the prime mover.

Abstract: An emergency release latch mechanism for a hinged cover of a hatchway construction, wherein the cover is heavily spring biased to open position but is normally restrained in closed position by the latch mechanism. The mechanism includes an emergency-actuated release member such as a low-temperature fusible metal link which, through a release mechanism which reduces the tensile load on the link, retains a latching dog in engagement with a shackle pin on the cover but assures positive disengagement therefrom to release the cover to open position in the event of actuation of the emergency-actuated release member. The latch mechanism is typically positioned at the center of the hatch but the release member and emergency-actuated release members are disposed near a wall of the hatch so that the latch mechanism may easily be set or reset by a person at the periphery of the hatch by securing a cable connecting the latch mechanism and release mechanism.

Abstract: A self-aligning, simple to use and reliable child/pet safety gate (2) that is removably mounted by a support assembly (4) to an existing room door (12) by hanging the support assembly on the room side doorknob (10) without the use of mounting hardware is disclosed. This design allows the gate to be used or stored while so mounted to the room door. Further, with the gate in its stored, hidden position behind the door, the existing room door can still be opened and closed in a normal fashion. Yet, it is a simple matter to place and secure the gate's blocking assembly (6) in its operative or blocking position by pivoting it to block the open area and then latching it to the door frame using a locking strap (54) and pin (60) and the existing door lock bolt aperture (62) to secure the blocking assembly.

Abstract: An air-driven rotating window assembly mountable to one side of a viewing window. The rotating window assembly faces toward the working or weather exposed area and slings off, by centrifugal force, any debris that contacts the rotating window so as to maintain clear visibility through a portion of the viewing window over which the rotating window extends. The rotating window assembly includes a support base and a rotating window rotatably mounted to the support base. The rotating window has an annular frame with propulsion passages therein that receive a flow of pressurized gas substantially tangentially to the frame. The propulsion passages redirect the gas to generate a propulsive force on the frame to spin the rotating window relative to the support base. The gas exits the annular frame through a restricted gap between the support base and the rotating window so as to form an air barrier that prevents debris from passing through the gap.

Abstract: A tailgate is hinged to a passenger van type vehicle body above a substantially vertical rear access opening for swinging movement about a horizontal hinge axis. The tailgate is counterbalanced through its range of movement by spring devices and is opened and closed by a powered actuator mounted on a rear vehicle body pillar. The actuator includes a reversible electric motor driving a worm shaft that drives a worm gear to pivot a crankarm about an axis parallel to the hinge axis. A roller mounted on the crankarm is received in a guide channel that is fixed to the tailgate and extends at right angles to the hinge axis with the pivoting movement of the crankarm thereby translated into swinging tailgate opening and closing movement. The motor is connected with torque sensing circuitry that detects an excessive motor torque demand when the tailgate encounters an obstacle and stops the motor.