Arichell Technologies Inc.

Robert Shamitz

Natan E Parsons

Kay Herbert

David W Hadley

Fatih Guler

A tank-type flusher includes an intake valve, i.e., a fill valve, a diaphragm-operated flush valve, and a pressure control mechanism. The intake valve is connected to an external water source and is constructed to close water flow to a water storage tank at about a predefined water level in the water tank. The diaphragm-operated flush valve is constructed to control a flush valve member between a seated state and an unseated state allowing water discharge from the water tank into a toilet bowl. There is a diaphragm, separating a flush-valve chamber and a pilot chamber, arranged to seal the flush-valve chamber and thereby maintain pressure forcing the flush valve member to the seated state preventing the water discharge from the water storage tank to the toilet bowl. The pressure control mechanism is constructed and arranged, upon actuation, to reduce pressure in the pilot chamber of the diaphragm-operated flush valve to cause deformation of the diaphragm and thereby reduce pressure in the flush-valve chamber causing the water discharge.

Toilet flusher with novel valves and controls

A valve device and a method for operating at least two valves is actuated by an actuator and arranged for controlling fluid flow in at least two separate fluid lines. The two valves are preferably diaphragm operated valves, but may be also piston valves. The valve device includes a pressure release mechanism constructed to change pressure in a diaphragm chamber of each diaphragm operated valve and thereby open or close the valve. The pressure release mechanism may include a fluid passage in communication with each diaphragm chamber, where it is simultaneously controlled by a movement of a single sealing member actuated by a single actuator. The valve device may also include a manual actuator.

Device and method for operating at least two valves

Disclosed is a valve device and a method for operating at least two valves actuated by an actuator and arranged for controlling fluid flow in at least two separate fluid lines. The valve device can simultaneously control at least two diaphragm operated valves using a single actuator. The valve device includes a pressure release mechanism constructed to change pressure in a diaphragm chamber of each diaphragm operated valve and thereby open or close the diaphragm operated valve.

By depressing a push button ( ), a user deforms a flexible diaphragm ( ) and thereby causes an incompressible fluid to flow from a first actuation-chamber segment ( ) through openings ( ) in a divider wall ( ) and into a second chamber segment ( ). That flow deforms a second flexible diaphragm ( ), which accordingly causes an actuator shaft ( ) to break the seal formed by an O-ring ( ) and thereby permit flow from a main valve inlet ( ) through a main valve outlet ( ). When the user releases the push button ( ), an actuator check valve ( ) prevents the incompressible fluid from returning through the divider-wall openings ( ) to the first chamber segment ( ). The actuator therefore returns only slowly, through a bleed orifice ( ). A pressurizer conduit ( ) communicates the valve's outlet pressure to a stop chamber ( ) and thereby causes the position of a stop member ( ) to be dependent on that pressure. The position of the stop member ( ) determines the length of the button travel and thus the time required for the valve to close. This reduces the effect of inlet pressure on the amount of fluid that one valve operation causes to be delivered.

Push button for metered flow

A remote valve ( ) controls relief of pressure by way from a pilot-valve chamber ( ) whose pressure in turn controls pressure relief pressure chamber ( ) by which a pressurized-water source holds a flush valve ( ) seated in a flush opening at the base of a toilet tank ( ). An actuator chamber defined by a housing ( ) and flexible diaphragms ( ) and ( ) contains an incompressible fluid, and the user's depression of a push button ( ) causes that fluid to be displaced through a check valve ( ) so as to displace a valve member ( ), which is coupled to one of the flexible diaphragms, from a sealing position to an unsealing position, where it permits flow from a valve inlet ( ) to a valve outlet ( ). This relieves the pressure that holds the flush valve ( ) closed. A spring ( ) biases the valve member ( ) to a rest position, to which it tends to return when the user releases the push button ( ). But the check valve ( ) restricts the incompressible fluid's flow path to a small bleed orifice ( ). This imposes a time delay before valve member ( ) can return to its sealing position and thus cause the flush valve ( ) again to close. The time delay ensures adequate flushing flow.

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Brighton, MA, United States of America

Robert Shamitz