Apparatus for flushing a toilet, comprising an accumulator
AssigneeThomas Dudley Limited
InventorsSimon Boyes, Martin Dudley, Andrew Holmes
Life of this patent
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Abstract
A flushing apparatus (1, 301) for being installed in the cistern of a toilet including a flushing device (2) for fluid connection with an outlet of a cistern and a hydraulically-driven control circuit (3, 303) for operating the flushing device. The control circuit (3, 303) includes a water inlet (P) for fluidly connecting the control circuit (3, 303) to a source of pressurised water and an accumulator (6) fluidly connected to the water inlet (P) and configured to supplement, in use, the flow of pressurised water supplied by the source trough the control circuit (3, 303) to activate the flushing device (2).
Claims15
A toilet flushing apparatus comprising a flushing device for fluid connection with an outlet of a toilet cistern and a hydraulically-driven control circuit for operating the flushing device, the hydraulically-driven control circuit comprising a water inlet for fluidly connecting the control circuit to a source of pressurised water, a hydraulically-driven actuator comprising a cylinder and a piston disposed therein, an operating valve between the hydraulically-driven actuator and the water inlet for selectively opening fluid communication therebetween and an accumulator fluidly connected between the operating valve and the water inlet, wherein the accumulator is configured to supplement, in use, the flow of pressurised water supplied by the source to the actuator through the control circuit, the operating valve having an inlet fluidly connected to the accumulator and an outlet fluidly connected to a chamber in the cylinder, so that, when the operating valve is opened, pressurized fluid flows from the accumulator, through the operating valve, and into the cylinder chamber to drive the piston to operate the flushing device.
A toilet cistern flushing apparatus comprising a flushing device for fluid connection with an outlet of a toilet cistern and a hydraulically-driven control circuit for operating the flushing device, the control circuit comprising a water inlet for fluidly connecting the control circuit to a source of pressurized water, a hydraulically-driven actuator, an operating valve between the actuator and the water inlet for selectively opening fluid communication therebetween and an accumulator fluidly connected between the operating valve and the water inlet, wherein the accumulator is configured to supplement, in use, the flow of pressurized water supplied by the source to the actuator through the control circuit, wherein the flushing device comprises a syphon having an inverted generally U shaped duct with an upleg and a downleg, an open-ended chamber fluidly connected to the upleg and a piston movable in the chamber, the actuator being operatively connected to the piston for moving the piston in the chamber to initiate a syphonic flushing action.
Dependencies are inferred from the claim text.