Abstract: According to the present invention, a shield for a glove box housing radioactive material is comprised of spaced apart clamping members which maintain three overlapping flaps in place therebetween. There is a central flap and two side flaps, the side flaps overlapping at the interior edges thereof and the central flap extending past the intersection of the side flaps in order to insure that the shield is always closed when the user withdraws his hand from the glove box. Lead loaded neoprene rubber is the preferred material for the three flaps, the extent of lead loading depending upon the radiation levels within the glove box.

Abstract: A rail car having an interior cavity and an end opening for loading and unloading lading is provided with a pair of door assemblies, each of which includes a plurality of panels, each pivotally movable with respect to the other for closing at least a portion of the end opening. Pivot means comprising a shaft for mounting each of the door assemblies are provided to move the door assemblies between their respective open position and closed position. The pivot means are mounted for movement toward and away from the interior of the rail car on a track to permit storage of the door assemblies within the rail car when their panels are folded back upon one another. The shaft is manually driven by means of a housing. A rack and a source of rotational power including a cooperating pinion mounted on the shaft act to guide, move and lock the door. The housing has a cavity into which one or more enlarged lever ends are inserted and secured before assembly of the housing to the shaft.

Abstract: Presented is a screen door structure embodying a smaller animal access door through which animals may pass through the screen door while still providing protection against flying insects.

Abstract: A window screen is provided which is especially adapted for use on vans or like vehicles, and which includes means formed as an integral part thereof, for facilitating access to the latching device usually provided on such vans for opening and closing the windows of the van whereby the window may be opened or closed without removal of the screen. The screen has a frame of special cross-section designed to facilitate attachment of screening thereto, as well as attachment of the screen to the window frame or opening.

Abstract: A magnetically actuated cat door is provided wherein the owner's cat can wear a magnet and go freely in and out of the door while other cats are effectively barred from entering.

Abstract: A storm window construction includes longitudinally grooved framing strips attached to the four faces of a window casing either inside or outside the window glass. Edge portions of a clear flexible plastic membrane stretched across the window opening and spaced from the glass are held within the grooves of the framing strips by bead strips to maintain the membrane under tension and provide an insulating air space between the membrane and the glass. The bead strips are oblong and can be inserted in the framing strip grooves only along the short diameter of the bead. Once in the groove the bead strip tends to rotate into wedging engagement with cylindrical inner wall portions of the groove under membrane tension to secure the bead and membrane in place. Surface portions of each bead strip intersected by its short diameter and portions of each framing strip at the entrance to the groove may be scored or toothed longitudinally to resist removal of the bead strip from the groove of the framing strip.

Abstract: A pet door installed in a window screen or screen door consisting of a screen frame member having a frame track in which a spline cord can hold the edge of a cut off portion of a screen door or window together with first and second outer members which are coupled to the center screen frame member, one of the outer members having a hinged center portion for allowing a pet to pass through from either side.