Abstract: A modular system for containing projectiles has a sheet of material including at least a polycarbonate layer held by a metal frame having a straight frame member corresponding to each straight edge of the sheet. Each frame member has a U-shaped shield channel covering and holding a straight edge of the sheet and an adjacent U-shaped clamp channel rigidly held against the shield channel. A flexible gasket separates each sheet edge from its respective shield channel; and each frame member is fastened to each adjacent frame member only by clamps extending between adjacent clamp channels.

Abstract: An asphalt composition ridge cover and method of forming the same whereby a decorative appearance somewhat resembling that of a shake roof ridge cover is achieved. The ridge cover generally is a pair of flat, approximately rectangular pieces of asphalt composition roofing material, having a plurality of tabs at one end of each piece which are folded over one another thereby forming a region of increased thickness at that end. The two pieces are adhesively joined in a plurality of areas including an area disposed to both sides of the central fold that forms the ridge line of ridge cover when installed, thereby holding the ridge cover in a folded configuration. The adhesive may contain a solid filler to increase the thickness of the ridge cover. The adhesive joining in the vicinity of the central folding inhibits further bending along the central fold and thereby reduces cracking.

Abstract: A sliding door assembly includes a number of door panels slidably engaged with a track and a leader end secured to one end of the door panels. A retaining device forms a channel for receiving the leader end and has a pair of opposite resilient stops trapezoidal in cross-section and extended inwardly into the channel for engaging with the leader end and for retaining the leader end within the retaining device. The retaining device may be secured to a supporting abutment, usually a wall member, or may be secured to and moved in concert with the leader member of another sliding door subassembly for coupling the sliding door subassemblies together.

Abstract: An insulated concrete wall structure having a concrete wall with opposing wall surfaces. The concrete wall has several vertically and horizontally spaced wall ties imbedded within the concrete wall and extending between the wall surfaces. Positioned between the vertically spaced wall ties are a series of elongated retaining strips such that the retaining strips are substantially parallel to the wall surface. Insulating panels such as polystyrene foam boards are located between the horizontally spaced wall ties and retained in position by the retaining strips. In one aspect of the invention, each insulating panel has a groove formed along its vertical edge for receiving and engaging the elongated edge of the retaining strips. The present wall system is advantageous in that an insulated concrete wall can be readily formed using conventional wall forms in approximately the same amount of time as conventional uninsulated poured concrete walls.

Abstract: A vent pipe flashing system includes a lower flange, a resilient boot portion and a matching sleeve portion. According to a first embodiment, the lower flange is plastic or metal, the resilient boot portion is plastic or rubber, and the sleeve portion is metal or plastic and has a diameter large enough to slide over the vent pipe and a length about one inch longer than the vent pipe. The top of the sleeve is crimped to hook over the top end of the vent pipe and the bottom of the sleeve is coupled to the boot by crimping. According to a second embodiment, the lower flange includes a metal or plastic roof flange and a rubber gasket having a skirt fixedly seats atop the roof flange. The bottom end of the sleeve portion is crimped over the rubber gasket. The upper ends of the sleeve portion and the vent pipe are covered by a cap having an inverted U-section. According to either embodiment, multiple (telescoping) sleeve portions may be provided and (optionally) coupled to each other by crimping.

Abstract: A top cap arrangement for an interior space-dividing wall panel arrangement which mounts on and projects upwardly from a floor for dividing a floor area into a plurality of smaller working areas. The panel arrangement is defined by a plurality of individual panel members which are less than ceiling height, and have an interior frame construction which includes an elongate top frame element which extends along and defines the upper surface of the panel member. A top cap member mounts on and extends horizontally along the top frame element, and is constructed of a material which permits at least limited transverse flexibility. The top cap member has a channel-like configuration which includes outer side flanges which slidably overlap and embrace exterior sides of the panel member to permit at least limited vertical positional adjustability of the top cap member relative to the panel member.

Abstract: A recessed fixture housing in which the major components are designed with taper fits to allow the components to be pressed together in assembly to create an air-seal engagement construction. The fixture housing also provides a junction box accessible from either the room side or the attic side of a fixture, while maintaining a sealed fixture housing. Further, a recessed fixture frame for use with a housing of maximal size to be installed between building structural members with mounting bars having protruding tabs. Mounting bar brackets are inset from each frame side an amount sufficient to accommodate the tabs between the building structural member and the bracket.

Abstract: A kit for preventing the movement of door frames during the time that brick and mortar are being erected around the frames. As one element of the kit, there is at least one block which fits between the door jambs to prevent inward or outward bowing of the jambs. The blocks contain peripheral holes which contain protective clips. The blocks may be tied in place at the desired location by passing a tie through the appropriate holes and around the doorjamb. A second element of the kit is at least one supporting brace which prevents movement of the door frame away from the vertical plane of the frame. The brace contains connecting holes at each end and, preferably, is made of telescopic tubing for ease in adjustment of length. The lower portion of the brace rotatably connects to a support. The upper end of the brace rotatably connects to a two-piece holder which removably attaches to a door jamb.

Abstract: A retractable ceiling assembly for a poultry house, characterized by a ceiling which can be selectively raised from a flat to a pitched configuration in order to accommodate high-profile equipment or materials in the poultry house for cleaning, maintenance or storage purposes. In a preferred embodiment the retractable ceiling assembly is characterized by at least one ceiling unit including multiple rafter units which span the width of the poultry house in parallel, spaced-apart relationship with respect to each other. Each of the rafter units includes a pair of cross members pivotally attached to each other at substantially the middle of the rafter unit. A flexible ceiling typically constructed of overlapping sheets of fabric material is mounted on the bottom surfaces of the rafter units. A typically manually-operated winch, mounted on the interior of the poultry house roof at substantially the center of the ceiling unit, is connected to each rafter unit at the pivoting midpoint thereof by means of cables.