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Water closet tank fill valve

  • US 4,903,731 A
  • Filed: 06/09/1989
  • Issued: 02/27/1990
  • Est. Priority Date: 06/09/1989
  • Status: Expired due to Fees
First Claim
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1. A self closing valve for a water closet tank, comprising:

  • an upright casing having a top and having a depending inlet tube forming a water inlet port;

    a valve seat in the inlet port;

    a valve mating with said seat for opening and closing the inlet port,said valve having an upstanding stem;

    control wheel means including a wheel having a gear rack adjacent its periphery and having a camming surface bearing against the end of said valve stem opposite the valve for seating or unseating said valve in accordance with the angular position of said control wheel;

    means biasing said valve toward the valve seat;

    water wheel means including a water wheel having radially disposed vanes journalled by the casing adjacent its top;

    tube means communicating at one end with the inlet port downstream from the valve seat and having its other end disposed adjacent the water wheel means in water wheel angular rotating position; and

    ,water wheel driven gear train means operatively interposed between said water wheel and said control wheel for angularly rotating said control wheel to a valve closed position in response to a predetermined number of revolutions of said water wheel.

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