Abstract: A pressurized flushing assembly mounted in the tank of a toilet for providing a rapid and thorough flushing of the toilet bowl with a low volume of water. The assembly includes a water storage tank defining an outlet aperture communicating with the cistern drain and a valve assembly disposed within the storage tank for opening and closing the outlet aperture. The valve assembly communicates with a supply of pressurized water for directing water under pressure into the storage tank to compress the ambient air therein. The valve assembly includes a housing, a control valve, a fluid control piston, a cistern drain valve and a push button actuator for opening the control valve. Opening the control valve allows water within the valve assembly to flow therethrough and from the valve assembly, creating a pressure drop within the housing above the fluid control piston causing the fluid control piston rapidly to rise and allowing water to flow past the piston and from the valve assembly.

Abstract: A pressurized flushing assembly mounted in the tank of a toilet for providing a rapid and thorough flushing of the toilet bowl with a low volume of water. The assembly includes a water storage tank defining an outlet aperture communicating with the cistern drain and a valve assembly disposed within the storage tank for opening and closing the outlet aperture. The valve assembly communicates with a supply of pressurized water for directing water under pressure into the storage tank to compress the ambient air therein. The valve assembly includes a housing, a control valve, a fluid control piston, a cistern drain valve and a push button actuator for opening the control valve. Opening the control valve allows water within the valve assembly to flow therethrough and from the valve assembly, creating a pressure drop within the housing above the fluid control piston causing the fluid control piston rapidly to rise and allowing water to flow past the piston and from the valve assembly.

Abstract: An in line pressure sensitive back flow prevention valve assembly adaptable for high volume flow applications comprising an elongated housing having a fluid inlet and outlet at opposite ends thereof, an axial control rod reciprocally mounted therein, a valve motor piston carried by one end of the rod in sliding engagement with the housing inwardly spaced from the fluid inlet and an elongated double poppet valve slidably mounted within the housing on the control rod and defining with a second slidably mounted piston, an upstream check valve and, with a slidably mounted sleeve, a downstream check valve. Biasing spring urge the motor piston toward the fluid inlet and the check valves to the closed position. The valve elements are sized to utilize the fluid forces acting thereon to open the valve assembly in response to slight decreases in downstream pressure and to cooperate with the biasing springs to close the valve assembly in response to significant increases in downstream pressure.

Abstract: A noise attenuating filter for use in a fluid flow systems which includes a cylindrical body defining a plurality of arcuate open-ended passageways extending longitudinally therethrough, a corresponding plurality of small radial slots in one end thereof communicating with the passageways and a closing member biased outwardly from the slotted end of the cylindrical body so that during use, fluid flows about the closing member and into and through the arcuate passageways until such time as the fluid pressure on the closing member causes the closing member to cover the upstream end of the annular passageways whereupon the fluid is caused to travel into the passageways through the smaller radial slots thereby reducing the volume of flow through the system and attenuating the noise of the fluid flow while additionally preventing the passage of large particles through the system.

Abstract: Disclosed herein is a pressure activated fluid control system particularly adapted for use as a flushing mechanism for toilets of the water tank type. This system includes a push button actuated control valve assembly which, in the shutoff position, urges a needle valve against a movable valve seat; a pressure actuated direction flow valve; and a tank ball lifting mechanism. The direction flow valve is in fluid communication with the control valve assembly which upon actuation of the control valve, allows incoming water under line pressure to pass to the lifting mechanism, raise a lift piston and lift the tank ball from the cistern drain. The tank ball depends from a piston disposed within a water filled lower cylinder and following the draining of the cistern, the tank ball slowly and precisely returns to the cistern drain as the water below the piston head within the lower cylinder passes from the cylinder through a check valve disposed about the piston rod.

Abstract: Described herein is a pressure activated fluid control system particularly adapted for use as a flushing mechanism for toilets of the water tank type. The system includes a push-button actuated needle valve assembly which, in the shutoff position, presses against a movable valve seat; a pressure actuated direction flow valve; and a tank ball lifting mechanism. The direction flow valve is in fluid communication with the needle valve assembly and includes a floating piston which upon actuation of the needle valve, allows incoming water under line pressure to pass to the lifting mechanism, raise a lift piston and lift the tank ball from the cistern drain. The tank ball depends from a piston disposed within a water filled lower cylinder and following the draining of the cistern, the tank ball slowly and precisely returns to the cistern drain as the water below the piston head within the lower cylinder passes from the cylinder through a check valve disposed about the piston rod.