Abstract: A control stop for a flushing system including a metering flush valve connected to supply liquid to a toilet fixture. The control stop is in series flow relation between a source of pressurized liquid and the metering flush valve and serves the several functions of controlling flow to the metering flush valve for reducing noise and maintaining desired flushing action, preventing reverse flow and trapping pressure at the metering flush valve in the event of loss of inlet pressure, and shutting off the flow path for installation, service or replacement of the metering flush valve. The control stop includes a regulator having a valving portion engageable with a valve seat communicating with the outlet of the control stop and acts as a low pressure cut-off rather than a check valve. A spring biases the regulator toward the valve seat and the regulator is normally held open by liquid pressure.

Abstract: A plumbing hookup kit for making water supply connections between any of numerous different fittings such as faucet shanks, toilet tank fill valve shanks, and valve, coupling and adapter compression and slip fittings in 3/8", 7/16" and 1/2" sizes. The kit includes a length of supply tubing with an annular terminal attached to each end, together with a seal ring adapted to encircle each terminal. With smaller fitting sizes, the seal ring and terminal effect a fluid tight connection in cooperation with the fitting and its associated coupling nut. Adaptor sleeves of different sizes and different configurations cooperate with the terminal and seal ring to effect a fluid tight seal with larger fittings and associated coupling nuts of either the compression or slip type.

Abstract: A fill valve for controlling liquid level in a toilet water tank or other tank includes a valve head assembly positioned at a selected level in the tank by a telescoping riser assembly with liquid inlet and outlet conduits extending toward the tank bottom. An adjusting nut on a stationary riser engages thread structures on inlet and outlet conduits for raising or lowering the valve head assembly and adjusting the liquid level. A main valve in the head assembly is controlled by a non-horizontal diaphragm separating a vent chamber and a control chamber. The control chamber is pressurized as liquid rises to the selected level by a standpipe extending downwardly in the tank. The valve closing and opening levels are offset by partly filling the vent chamber with liquid when the main valve is open to hydraulically load the diaphragm. A vacuum breaker valve obstructs backflow through the valve, vents the flow path when the valve is closed, and regulates flow into the vent chamber when the valve is open.

Abstract: A flush valve for use with a toilet tank assembly having a flush outlet surrounded by a valve seat, an overflow pipe, and a lift arm movable to initiate flow through the valve seat includes a one piece integral body of molded plastic material. The valve body includes a float fabricated on one end that is aligned with the valve seat to control flow therethrough. An integral beam is fabricated at another end of the body. The float and beam are interconnected by planar portions of the body. A mounting collar is also integrally formed on another planar portion of the body extending from the beam to the collar. The collar may be mounted on the overflow pipe to secure the valve to the toilet tank assembly. An elongated lift strap integrally fabricated with the body extends from the float member and includes a tooth structure for attachment to the lift arm.

Abstract: A faucet assembly including pinch valves for controlling the flow of hot and cold water. A base is secured to the deck of a sink from above the deck and a body secured to the base completes the faucet housing. A spout extends over the basin and includes an outlet at its end. Two flexible tubes are connected to a mixing chamber near the outlet and extend through the spout and through the base for connection to hot and cold water conduits remote from the sink deck. The tubes are normally pinched closed adjacent the mixing chamber by springs, and operating levers at opposite sides of the spout rotate about a shaft and operate a linkage and valve mechanism for overcoming the spring forces to permit flow. Lost motion connections render the spring closing forces independent of lever position. A cross bar limits lever movement and provides a support surface against which the tubes are pinched. The tubes are located in the valve region by a block which serves as a barrier to leakage.

Abstract: A fill valve for controlling liquid level in a toilet tank or other tank includes a housing with an inlet, an outlet, a valve, and a level sensing mechanism for opening the valve to permit flow when the liquid level is below a predetermined value. A flow impedance path including a compact array of many baffles defining multiple consecutive right angle turns dissipates fluid pressure without substantial velocity increases and consequent cavitation and noise. Stable valve closure when the predetermined level is reached is effected by the mounting and configuration of a valve control lever. The fill valve may be disassembled for service without removal from the tank. A coupling and mounting nut assembly facilitates mounting without tools in a variety of tanks.

Abstract: A pilot valve designed to regulate a main liquid flow valve disposed in a fluid system is disclosed having a diaphragm and sliding poppet assembly which is biased in one direction by a reference force and movable in the opposite direction in response to variances in regulated pressure sensed upon the diaphragm. The pilot valve includes integrally formed self-cleaning restrictors which dampen the operation of the valve to eliminate chatter as the pilot valve throttles to maintain the desired liquid flow level in the fluid system. Stability during operation is provided by a positive feedback force being applied to the pilot poppet which is of the same magnitude as the pressure which positions the valve member of the main flow valve. This positive feedback force significantly reduces phase lag between the pilot and the main flow valve, thereby increasing valve response to load changes.

Abstract: A faucet assembly including pinch valves for controlling the flow of hot and cold water. A base is secured to the deck of a sink from above the deck and a body secured to the base completes the faucet housing. A spout extends over the basin and includes an outlet at its end. Two flexible tubes are connected to a mixing chamber near the outlet and extend through the spout and through the base for connection to hot and cold water conduits remote from the sink deck. The tubes are normally pinched closed adjacent the mixing chamber by springs, and operating levers at opposite sides of the spout rotate about a shaft and operate a linkage and valve mechanism for overcoming the spring forces to permit flow. Lost motion connections render the spring closing forces independent of lever position. A cross bar limits lever movement and provides a support surface against which the tubes are pinched. The tubes are located in the valve region by a block which serves as a barrier to leakage.

Abstract: A product and method for packaging a flush valve on a display card wherein the valve is self-supporting on the card and the package requires no components or elements other than the valve and the card. The flush valve includes a flanged body portion received in an aperture in the card with the flange overlying a surface of the card. An elongated flexible lift strap extending from the valve is wrapped around the card and valve to hold the valve in place on the card. An end of the strap is frictionally retained in an opening in the card to maintain the strap in its wrapped condition.

Abstract: A fill valve for controlling liquid level in a toilet tank or other tank includes a housing with an inlet, an outlet, a valve, and a level sensing mechanism for opening the valve to permit flow when the liquid level is below a predetermined value. A flow impedance path including a compact array of many baffles defining multiple consecutive right angle turns dissipates fluid pressure without substantial velocity increases and consequent cavitation and noise. Stable valve closure when the predetermined level is reached is effected by the mounting and configuration of a valve control lever. The fill valve may be disassembled for service without removal from the tank. A coupling and mounting nut assembly facilitates mounting without tools in a variety of tanks. A backflow preventer including few simple parts may be incorporated to provide redundant cross-connection protection.

Abstract: A valve for controlling fluid flow in a fluid system such as a pipeline which includes a body defining an internal chamber in fluid connection with an inlet and an outlet. The valve further includes a deformable valve liner mounted within the chamber which sits against a valve seat and a frustoconical grill having a plurality of ports therein. The liner and the body define a control chamber which is coupled to a source of controlled pressure. A relief region is provided between the liner and the grill at the plane of intersection of the liner and the grill.

Abstract: A flow responsive device for use in a fluid flow system to establish a signal when a predetermined flow rate is attained within a flow conduit. The device is adapted for connection to a flow conduit and has a target vane adapted for insertion within the flow conduit for movement in response to predetermined flow to open internal valve means against the bias force of a compression spring and control pressure within a pressure chamber. In operation, the control pressure is maintained at a higher pressure than the fluid pressure within the flow conduit so that after initial opening of the valve means, the control pressure drops and the valve means undergoes fast-action movement to its fully open condition. The flow rate at which the valve means closes is less than the flow rate at which the valve means opens so that hunting of the valve means during operation is prevented.

Abstract: A servo operated throttling control valve for controlling fluid flow in a fluid system such as a pipe line includes a body defining an internal chamber in fluid communication with an inlet and an outlet fabricated in the body. The valve further includes a deformable valve element mounted within the chamber that, in the valve closed position, seats against a valve seat and a rib grill defined in the chamber. The valve element and the body define a control chamber adapted to be coupled to a source of control pressure. The configuration of the body is fluted to accommodate bolt patterns employed in different flange ratings.

Abstract: A fill valve for controlling liquid level in a toilet tank or other tank includes a housing with an inlet, an outlet, a valve, and a level sensing mechanism for opening the valve to permit flow when the liquid level is below a predetermined value. A flow impedance path including a compact array of many baffles defining multiple consecutive right angle turns dissipates fluid pressure without substantial velocity increases and consequent cavitation and noise. Stable valve closure when the predetermined level is reached is effected by the mounting and configuration of a valve control lever. The fill valve may be disassembled for service without removal from the tank. A coupling and mounting nut assembly facilitates mounting without tools in a variety of tanks. A backflow preventer including few simple parts may be incorporated to provide redundant cross-connection protection.

Abstract: A pilot regulator for pressure regulation servo-control of a valve in a compressible fluid system includes a delay arrangement for achieving both rapid response and stable operation. The regulator includes a restrictor for supplying fluid from the main valve inlet to a control chamber, and a pilot valve for exhausting fluid from the control chamber. A diaphragm assembly for operating the pilot valve is biased in one direction by a reference force or pressure and in the opposite direction by the static pressure to be regulated. The control chamber and a delay chamber, in adjustable restricted communication with the control chamber, bias the diaphragm assembly in opposite directions. When static pressure change causes movement of the diaphragm assembly and opening or closing of the pilot valve, the difference in control pressure with respect to delay pressure permits limited abrupt movement of the diaphragm assembly, and provides a gradual continued reset movement.

Abstract: A valve for controlling the level of water in a toilet flush tank includes a body and cover having interfacing surfaces defining a valve chamber and a diaphragm chamber. A valve seat in the valve chamber communicates with a water inlet by way of a projection integral with the body adapted to extend through the flush tank water inlet opening to mount the housing in a normally submerged position. A diaphragm is held in the diaphragm chamber between the cover and body, and a flexible valve member is held in the valve chamber between the cover and body. An air passage defined in part by the projection vents the diaphragm chamber to atmosphere through the flush tank floor, and liquid pressure is communicated through the cover to the opposite side of the diaphragm. The water inlet passage extends to the center of the valve seat, which is surrounded by a valving surface having a number of segment shaped outlet ports communicating with water outlet passages in the valve body.

Abstract: An inlet orifice device to control thruput flow for a pressure regulator, and to prevent increases in inlet pressure from causing variations in outlet pressure. The novel inlet orifice device also permits improved relief valve performance by limiting the maximum available thruput flow to constant levels, within the design range of inlet pressure, regardless of the variation of the inlet pressure supplied within such range.The improved inlet orifice device serves the dual function of controlling the thruput flow by (1) varying the open area (flow limiter area) on the inlet side of the pressure regulator thru the said device and (2) cooperating with the valve to vary the open area (throttling area) on the outlet side of the said device. The improved inlet orifice device includes a fixed nozzle on the inlet side and a control member moveable relative the nozzle and the valve, which valve is disposed on the outlet side and actuated responsive the diaphragm.