Abstract: A motorized sliding door assembly including a sliding door that slides longitudinally inside an outer support frame assembled in a standard 2×4 stud wall opening in a building. The support frame includes a load-bearing header located horizontally between two vertical posts and opposite a lower threshold. Jack screws are placed between the ends of the header and the vertical posts which enable the position of the header to be adjusted relative to the vertical posts and against the ceiling plate. Located inside the header is a longitudinally aligned track rail that rests on top of the vertical posts over which the sliding door moves. Located inside the header is a linear motor. Disposed vertically inside the support frame are two parallel fixed panels that are sufficiently spaced-apart to create a pocket in which the sliding door may extend. Also provided around the support frame and fixed panels is a sealing frame assembly that creates a weather-tight seal therebetween when the sliding door is closed.

Abstract: A coupling for mounting a door frame in an opening in a wall includes two, substantially identical anchoring clips and two substantially identical retaining clips. Each anchoring clip has a base mounting portion and a resilient cantilever portion extending at an non-perpendicular angle from its base mounting portion. The anchor clips are oriented opposite to one another. Each retaining clip has a base mounting section and an angled section extending in an cantilever manner from its base mounting section. The retaining clips are oriented mirror image such that the cantilever portions of the anchoring clips engage the angled sections of the retaining clips.

Abstract: A sliding window track cover that is adjustable to fit different window track widths and also acts as a window locking mechanism. The window track cover is comprised of a male and female subassembly fastened together. The female subassembly has a pair of spaced, parallel, longitudinally extending flange plate members, a longitudinally extending leg member attached to said flange plates along one longitudinal edge thereof, and a longitudinally extending shoulder member. The male subassembly has a longitudinally extending tongue plate, a longitudinally extending leg member attached to the tongue plate adjacent one longitudinal edge thereof, but inboard a distance sufficient to form a shoulder. The tongue plate of the male subassembly is inserted into the slot formed between the flange plates of the female subassembly a distance sufficient to cause the male and female leg members to be spaced apart a distance that is substantially the same as the distance between the side walls of a window track.

Abstract: A window shoe device for conveniently preventing the drag link from slipping out of the drag link retaining member. The window shoe device includes a housing having a slotted drag link guide portion, a window mount support portion having a hole therethrough, and further includes a window mount member having a slot therein for securely retaining a pivot bar for a window sash and being pivotally supported by the window mount support member, and also includes a window mount retainer member having winged ends for securing the window mount member to the housing, and further includes a drag link retainer member having a pair of prongs extending outwardly for securely retaining a drag link, and also includes a slotted drag link guide reinforcement member removably disposed adjacent to the drag link guide portion.

Abstract: A sleeve-like container fabricated from a waterproof material, comprising an upper and lower surface with a hollow interior filled with salt. At least a portion of the lower surface is perforated with a plurality of openings and is positioned with the lower perforated surface in contact with the upper surface of a flat, sloped roof to provide wicking absorption of water flowing down the roof into the salt. Absorption of water by the salt and leads to release of the resulting saline solution through the perforated openings to the surface of the roof, preventing formation of ice on the roof downstream of the plastic sleeve and in the roof drain. The waterproof container with the packed salt is, preferably, secured to the surface of the roof by an adhesive tape, or a weight attached to or lying upon opposite ends of the container. In another embodiment, the de-icer is a solid block of a pressed, granulated salt having a top portion water-proofed to prevent rapid deterioration due to precipitation.

Abstract: A pair of slide cams are provided symmetrically about the center line of a door at the right-hand and left-hand end portions of the door, a pair of lock cams provided on the main body symmetrically in portions corresponding to those of the slide cams, and a hinge pin mounted so that it penetrates an axial hole provided in the lock cams. Each slide cam has a first grooved cam which can be engaged with and disengaged from the hinge pin in the horizontal direction, and a second grooved cam which can move from a first engagement position which continues from the first grooved cam and is engaged with the hinge pin guided by the first grooved cam when the door is closed to a second engagement position which serves as a pivot axis of the slide cam when the door is opened. Each slide cam is further provided with a first cam projection provided around the second grooved cam. Each lock cam is provided with a second cam projection which locks the first cam projection in the first engagement position.

Abstract: A mechanically interlocked belt type weatherstrip provides a seal between the upper portion of a door and the lower portion a window. The weatherstrip comprises three individual components: a cover, a body and a sealing lip. These components may be either extruded or molded depending particularly upon the configurations of their terminal portions. All of the components may be one of a wide variety of black flexible plastic or elastomeric materials. However, because each of the components is separate, they can be manufactured of different materials and of different colors to provide specifically desired properties. The weatherstrip is formed by snapping the body and the cover together which holds the sealing lip securely in place between the cover and the body. The weatherstrip thus allows versatility of the selection of the separate components to meet the individual style and functional needs of a particular motor vehicle design.

Abstract: An emergency opening device for a swinging folding door or a swinging folding gate, using an electric motor drive with a switchable electromagnetic coupling for closing and opening the door panels. The door has an emergency opening device, whereby the emergency opening device consists of an elastic tension or compression device to which a pre-load can be applied during the closing of the door. The tension or compression device can be engaged in the drive shaft of the outer panel or in the vicinity of the main closing edge of the inner panel.

Abstract: A school bus split-sash window with a latch release bar than can be pushed with the upward motion of one thumb. In the preferred embodiment, two normally-extended spring loaded release pins are retracted by tension on cables which are pulled around fixed stanchions in the window frame when the release bar is pushed up. The window can be opened by one hand.

Abstract: An extruded window jamb liner which includes at least one discontinuous opening of predetermined length and location for the sash balance connection, with the remainder of the wall in which such opening is formed left intact to provide a spring cover which is integral with the remainder of the jamb liner.

Abstract: A height adjuster for a pet door panel to be fitted in a sliding door frame has nesting, or telescoping, spacers atop the pet door panel frame, capped with a top piece engageable with the sliding door frame. In one embodiment, a screw seats in the top piece and passes thought the spacers, the number of which can be selected to adjust the height, and engages a nut in the pet door panel to secure the height adjuster together. In another embodiment, a piston-like top piece is biased away from the pet door panel, and the pet door panel frame includes moveable biased wedges, which positions the top piece relative to the pet door panel frame.

Abstract: A prefabricated window fame with a decorative window subassembly within for use in a building having a window opening in a wall or a door with a rail about its perimeter. The window frame includes a first, or back, member and a second, or front, member overhanging the window subassembly therebetween and fastened together to form a window frame groove matching the window frame rail. The front frame member is mountable on the outside of the window opening and the back frame member is mountable on the inside of the window opening with the window subassembly therebetween. Frame members are identical, symmetric components with one when inverted matching another to comprise front and back frame members. The frame members are secured together by a plurality of fasteners secured to the frame members about their perimeters. The fasteners comprise matching latch hooks or posts with ridges matching frame holes with ridges.

Abstract: An automatic chute closure for covering a chute opening wherein the chute closure includes a frame disposed around a chute opening, a chute door pivotally connected to the frame for movement between an opened and closed position, a door movement mechanism for opening and closing the chute door, a switch mechanism for activating and deactivating the door movement mechanism and a latch mechanism for securing the chute door in a closed position until the switch mechanism is activated to open the chute door. The automatic chute closure allows an operator to conveniently activate a single switch to open and close the chute door and to insure once the chute door is closed it is properly locked.

Abstract: A roll screen cassette for installation in a closure assembly having a frame for moveably retaining a closure member, the frame including a header, sill, and vertical jamb sections, at least one of the sections including a pocket formed within the interior thereof, the pocket having a first predetermined configuration defined by the interior of the section and for receipt of the roll screen, the roll screen comprising a pair of brackets from which the roll screen is pivotally supported, the pair of brackets having a second predetermined configuration compatible with the pocket of the frame section having the first predetermined configuration, the pair of brackets utilized for removeably retaining the roll screen within the pocket in use, the pair of brackets and roll screen being removeably held in position with respect to said frame only by the pocket having the first predetermined configuration and the pair of brackets having a second predetermined configuration compatible with the pocket and being located

Abstract: A modular rolling shutter for store windows and doors, comprised of vertically alternating rows of buckles and slats. Each slat is linked with the lower and upper buckles, allowing limited movement of the slats and buckles so that the modular shutter may be rolled and unrolled along tracks. The slats may be made of a transparent material allowing visibility without sacrificing weather resistance or security. Rolling shutters of various sizes which have the advantages of corrosion resistance, ease of transport, manufacture and repair can be easily formed.

Abstract: Horizontal hinged door assemblies such as sidewalk doors comprising a door, a frame surrounding the door and a hinge connecting the door to the frame are improved by utilizing a bendable gasket having a leg portion which is preferably inserted into an opening in at least one of the frame walls to secure the gasket to the frame and an outwardly and preferably downwardly extending body portion which extends across a gap between the frame and the edge of the door when closed and which is contacted by the door and bent further downward when the door is closed. The bendable gasket may be inserted into and secured to the frame during fabrication of the door assembly or on-site during installation of the door assembly. A variety of elongated shaped bendable gaskets may be used depending on the type door assembly installation.

Abstract: A theft prevention clamp for preventing the theft of an article from a support. The theft prevention clamp is designed to removably fasten the article to a support, such as a desk top, a desk leg, a table, or any other similarly shaped object. The theft prevention clamp has three rigid portions including two rigid portions interconnected by a third rigid portion. The theft prevention clamp may be rigidly configured in the form of one unitary member, wherein two rigid portions are parallel to one another and are interconnected by a perpendicularly oriented third rigid portion. The theft prevention clamp may also be configured in the form of three rigid portions interconnected by elements which bias the three rigid portions in a substantially flat orientation. The theft prevention clamp may also include a fourth rigid portion which is intended to be mounted in or on the article to be protected.

Abstract: A drive for a tracked door which utilises a drive pinion which engages a tracked rack that in turn moves the door as it is moved track-wise under the action of the pinion. A flexible rack able to travel on a curved locus is preferred.

Abstract: A door sweep includes a holder and a plurality of astragals extending from the holder. The holder has a generally U-shaped cross-section defining a cavity for receiving a portion of a door. The astragals are provided with tongues, which are received in grooves of the holder.

Abstract: A connector is provided to connect criss-crossing shoulder straps on a body-engaging harness. The connector joins overlapping portions of the shoulder straps while maintaining discrete portions thereof spaced apart. A preferred embodiment of the connector is a unitary piece of rigid plastic having slots formed therein to receive portions of the shoulder straps.