Abstract: An improved needle valve having a protective cap. The valve is of the type having an adjustable needle valve held in a housing connected to an air line. The needle valve meters air flow into a line and the improved valve has a cap with slits in the side thereof. The cap is oriented so that the slits face downwardly and, thus, any water or debris falling on the valve is conducted away from the air inlet portion of the valve. The valve is mounted so that it may be rotated 360 degrees about its point of mounting.

Abstract: A security sleeve for facilitating the mounting of plumbing fixtures in fire rated masonry or concrete wall construction. The sleeve has a pair of metal plates which are spaced apart about the thickness of the wall. The plates have a plurality of holes which correspond with a plurality of conduits bridging the metal plates to form passageways for plumbing pipes and fasteners connected to the plumbing fixture.

Abstract: A vandal-resistant security view port for use in prison cells and the like. The view port permits observation into a cell or room and is mounted on a frame which can be attached over an opening in a wall of the cell. The view port has a transparent pane and a grate and may be open or covered by a hinged door operable from the back side of the wall.

Abstract: A plenum/vacuum chamber for providing air circulation in a room. The chamber is attached to a housing affixed over an opening in the wall of the room and extends into the room. The housing has a grille passing therethrough which has an air-tight compartment around it.

Abstract: A vandal-resistant and tamper-proof plenum or vacuum chamber security air flow adjustment device installed inside the cabinet of a plumbing fixture. The device has a grille formed in the wall of the cabinet with many spaced openings therein and one surface of the grille is accessible from within a cell or other room and the back surface is inaccessible therefrom. A damper member is slidingly mounted against the inaccessible surface and is adjustable to control the amount of air flowing through the grille. The damper member has many openings which are spaced apart the same distance as the openings in the grille and the damper member is inaccessible from the cell but accessible from a pipe chase positioned on the other side of the cell wall.

Abstract: A vandal-resistant and tamper-proof security mirror assembly. The mirror is particularly useful for installation in a prison cell and is not removable from the viewing side thereof but is removable and replaceable from the back of the mounting surface such as from a pipe chase. The mirror assembly is held in a pan which is held behind an opening of the mounting surface.

Abstract: A vandal-resistant push button switch assembly. The switch assembly has a switch actuating device with no exposed fasteners which switch may be used in a prison cell or other area requiring a high degree of vandal resistance. Although the switch may be readily operated from within the cell, it cannot be removed from the cell or destroyed under anything but the most extreme conditions. The switch has a push button actuating shaft which is depressed by the user and this shaft in turn activates a push button electrical switch mounted on the back side of the mounting surface.

Abstract: A fabricated floor drain for waste reception. The drain has a receptor body having a bottom outlet and generally vertical side walls. A top rim is affixed to the top of the body and a large top flange having a removable screed guide is affixed to the top rim.

Abstract: A vandal resistant security light fixture having a housing and a light which is serviceable and removable from outside the room in which it is installed. The housing has at least one surface which faces into the room and is open at the back to permit servicing or replacement of the light assembly without having to enter the room. The fixture is vandal resistant and is particularly useful in prison cells and may be provided with one or more vandal resistant switches and vandal resistant electrical receptacles.

Abstract: A wall sleeve and installation jig for the vandal-resistant mounting of multiple adjacent fixtures. The jig is positioned in a wall such as the wall of a prison cell and fixtures such as a lavatory, mirror, light or the like are securely mounted thereon.

Abstract: An improved liquid-filled dashpot mechanism for use with a spring-biased, axially-displaceable valve stem, comprising: a housing having a passageway therein, a stem in the passageway adapted for reciprocation therein, a pair of annular rolling diaphragms disposed in spaced-apart, face-to-face relationship within the passageway in the housing, each diaphragm being respectively secured in fluid sealing relationship to the housing and the stem to collectively form an enclosed container for the dashpot liquid, a piston fixedly mounted on the stem intermediate the rolling diaphragms adapted for operative displacement within the housing and dividing the container into two chambers, a liquid metering passageway in the piston for providing fluid communication between the two chambers, and a check valve secured to the piston to permit the unidirectional flow of liquid therethrough, and when the dashpot liquid is not permitted to flow through the check valve, to direct the flow of dashpot fluid through the liquid meter

Abstract: A waste drain connection for coupling the waste outlet of a plumbing fixture having a receptacle for a fluid-sealing gasket thereabout to a plumbing drain pipe including a fluid-sealing member having a sleeve portion adapted for intimate fluid-sealing about the plumbing drain pipe and an outwardly-extending flange forming a gasket about one end thereof and a sleeve and gasket compression member for containing the sleeve and for compressively urging the sleeve into greater intimate contact with the plumbing drain pipe to ensure a fluid sealing relationship therebetween and for compressively urging the gasket into intimate contact with the gasket receptacle to effectuate a fluid sealing relationship therebetween.

Abstract: A combination lavatory and toilet assembly including a sanitary enclosure having a rear side with a plurality of apertures therein, an upper side including means defining a lavatory basin with a drain opening therein and communicable with a plumbing drain pipe, a front side defining an access opening closed by a pivotally mounted closure member, a relatively pivotable toilet adapted to be stored in a first position within the enclosure and being pivotable about a generally vertical axis to a second position disposed exteriorly of the enclosure to permit use thereof, toilet support and pivot means fixedly coupled to the rear portion of the toilet for supporting the toilet and for pivotal movement between the first and second positions and including means for coupling the toilet to water supply piping and means for coupling the outlet of the toilet in fluid communication with the plumbing drain, wherein the toilet support and pivot means is supported independently of the enclosure, and linkage means operatively

Abstract: A security frame and mirror assembly for mounting to a wall, including a frame with a sidewall and a flange thereabout, a plurality of threaded receptacles secured to the rear face of the flange, mirror nested between the receptacles and the flange, and threaded rods having one end secured to the threaded receptacles and the other end engaged with the mounting wall.

Abstract: An improved toilet seat and flushing rim joined as an integral part of the toilet bowl, comprising a hollow, disc-shaped annulus with an egg-shaped perforation therein for the passage of human excrement and having an upper wall sloping downwardly from its outer rim and inwardly towards its inner rim which surrounds the perforation forming a toilet seat and a lower wall joined in fluid sealing relationship to the inner rim of the upper wall and sloping downwardly therefrom and outwardly towards the toilet bowl sidewall and having a serrated edge about its outer peripheral edge the edge being disposed in juxtaposition to the inside sidewall of the toilet bowl, thereby forming an inherently selfdraining flushing rim.

Abstract: A relievable hanger for towels and the like is disclosed which incorporates a ball having a fixed rod extending therefrom. The ball is movably captured within a socket to form a ball joint. A portion of the ball is bored out to receive therein a spring-loaded element with a rounded, blunted end. Positioning the rod upwardly to serve as a hanger for towels and the like disposes the blunted-end of the spring-loaded element over a detent within the socket. The blunted end is urged by the spring into the detent which relievably locks the rod in its upright position.

Abstract: An adjustable dashpot mechanism for controlling the rate of return of a spring-biased axially-displaceable shaft, comprising: a tubular housing having portions of unequal diameters therein with rims thereabout a shaft slidably mounted within the housing and extending beyond the ends of the housing, a dashpot piston fixedly mounted to the shaft within the housing and having an adjustable orifice therethrough, a flexible flange disposed between the periphery of the dashpot piston and the housing for effecting fluid sealing engagement therebetween when the dashpot piston is moved away from the smaller diametered portion in the housing and for effecting nonfluid sealing engagement when the dashpot piston is moved towards the smaller diametered portion in the housing, a reservoir piston slidably mounted on the shaft within the housing between the larger diametered portion of the housing and the dashpot piston and a spring disposed between the housing and the reservoir piston for urging the reservoir piston towards