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US 3,939,507 AGranted
Water closet water volume control
OwnerEdward C. Clarkinventor
Life of this patent
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OwnerEdward C. Clarkinventor
Estimating the term…
A water closet is provided with a device for limiting the amount of water discharged from its water tank during flushing. More particularly, the volume of water discharged from the tank is limited by low water level reached during flushing. The water limiting device has a tube inserted into the outlet water passage of the tank and through the normal valve seat of the typical ball or flapper valve member, and the valve member is seated atop the tube. In one embodiment, for use with an outlet valve unit having a generally horizontal valve seat, the bottom of the tube is tapered to wedge into telescopic relationship with the outlet passage and may, if desired, be fixedly secured to the normal overflow pipe of the outlet valve unit. In a unit having an inclined seat for receiving a flapper valve member, the tube has a cylindrical end portion telescoped into the outlet passage, and an inclined flange seated against the inclined valve seat. Below this flange is an annular seat which mates with a beveled mouth of the outlet passage. The tube seat may be resilient and sealingly engage the mouth with an integral annular gasket seated against the flange and the valve seat. An arm integral with the upper portion of the tube is secured to the overflow pipe and carries a pair of opposed fingers for receiving apertured ears of the flapper valve which is seated atop the tube. These fingers are comparable to the conventional fingers provided on the typical outlet valve unit. A variation has a rigid tube seat integral with the flange, for seating against the beveled mouth of the outlet passage, and a separate annular gasket is provided for seating between the flange and the valve seat of the outlet passage.
A water closet comprising, a flushing water tank including an outlet valve unit having an outlet passage with a valve seat, said unit further having a valve member operatively associated with said valve seat in conventional assembly of the outlet valve unit for controlling the flow of flushing water from the tank through the outlet passage, and a device including a conduit operatively fixed to a fixed portion of said outlet valve unit and having one end portion in substantially fixed sealed telescoped engagement with said outlet passage, and an opposite end portion having a valve seat spaced upwardly from the first said valve seat, and said valve member being operatively associated with the conduit valve seat for controlling the flow of flushing water from the tank through the conduit and the outlet passage, thereby reducing the quantity of flushing water discharged from the tank over the quantity discharged when the outlet valve unit is in said conventional assembly.
A water closet flushing tank water level control device comprising an elongated conduit having opposite ends, a first of said ends including means for operatively fixedly sealed connection with a typical outlet water passage of the tank, and the other of said ends having means in the form of a valve seat for receiving a typical outlet valve member of the tank, and means on said conduit for maintaining the first end in said fixedly sealed connection with said outlet water passage and for operatively fixedly securing said conduit relative to a fixed portion of said tank, whereby the device appreciably reduces the quantity of water discharged from the tank.
Dependencies are inferred from the claim text.