Abstract: An improved, delayed closing plumbing valve of the type having a cartridge with hydraulic fluid in a sealed chamber retained between an upper and lower diaphragm positioned about a longitudinally movable valve stem assembly. The chamber has a one-way piston which divides the chamber into an upper and lower section, and there is a restricted fluid flow path between the two sections. A water shut off gasket is at the base of a valve stem and has a removable gasket ring to permit the replacement of the gasket. The valve seat may also be removable for replacement. The lower diaphragm is provided with a sealed chamber to prevent its degradation by particles in the water. The diaphragms at the upper and lower end of the chamber are retained and sealed to the valve stem by retaining rings having a conical upper end which holds the inner part of the diaphragm against the valve stem. The diaphragms preferably permit the turning of the valve stem with respect to the cartridge without damage to the diaphragms.

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: A fabricated floor drain for waste reception. The drain has a receptor body having an outwardly extending top rim and a flange which extends outwardly about the entire exterior of the side walls of the body. The flange functions both to anchor the drain as well as to provide a seal for a water proof membrane. Seepage drain holes are positioned at the intersection of the flange and side walls.

Abstract: A plumbing fixture in combination with means for preventing overflow from a toilet bowl having a P-trap when an obstruction is created in the waste outlet thereof, such plumbing fixture including a blow-out jet pipe, the entrance of the pipe being coupled in fluid communication with the water supply pipe connected to the toilet bowl at the upper portion thereof and the outlet of the pipe coupled in fluid communication with the P-trap of the toilet bowl of the plumbing fixture, comprising: a toilet bowl having a water supply pipe operably coupled therewith; an electrically-controlled flushing valve operably associated with the supply pipe for controlling the flow of water to the toilet bowl; a source of electricity for operating the valve; electrical switch means operably associated with the source of electricity for controlling the delivery of electricity for controlling the delivery of electricity to the valve for actuation thereof; an insulated electrical probe mounted in the water supply pipe; said electri

Abstract: A plumbing fixture with a toilet bowl having a P-trap with means for inhibiting overflow from the toilet bowl when an obstruction exists in the waste outlet thereof, comprising: a tolet bowl having a flushing rim thereabout adapted to be coupled to a water supply pipe; an electrically controlled flushing valve for controlling the flow of water in the water supply pipe; a source of electricity for operating the flushing valve; a switch for controlling the flow of electricity to the flushing valve; a blow-out jet pipe coupled to the P-trap and adapted to be coupled to the water supply pipe; a hollow adapter having at least four openings thereinto wherein one opening is coupled to a water supply pipe, one opening is coupled to the blow-out jet pipe, and one opening is coupled to the flushing rim so that when water resides therein water also resides in the adapter via the opening coupled to the flushing rim, said adapter having a weir therein dividing the openings coupled to the water supply pipe and the blow-out

Abstract: An improved apparatus for securing, in fluid sealing relationship, the waste outlet of a plumbing fixture to a waste receiving pipe extending through and beyond a mounting structure, such as a wall or a floor, the waste receiving pipe having a radially-extending flange about one end thereof with a plurality of open portions therein for receiving headed fasteners, and the waste outlet of the plumbing fixture extending into the waste receiving pipe, including: an annular fluid sealing gasket with a series of apertures therethrough, one side of which is disposed in intimate contact with the flange of the waste receiving pipe; gasket support means for supporting the other side of the gasket and having a series of apertures therein alignable with the apertures in the gasket, the gasket support means slideably disposed in fluid-sealing relationship about the waste outlet of the plumbing fixture adjacent the end thereof; head fastening means for securing the flange of the waste receiving pipe to the gasket support m

Abstract: A rectangular vandal-proof plumbing valve access box for housing at least one plumbing valve therein and for containing same within the wall of a building, including an access cover facing the user-occupied side of the wall with security bolts anchoring the cover to the access box and having a lip extending over the wall about the access box, the box further having a pair of re-inforced rims thereabout with valve locating notches located about one of the rims of the access box.

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