Water closet

A water closet comprising a bowl having an open lower end, a concave pan beneath said bowl supported for movement between a first position in which said pan encloses said open lower end and a second position in which said pan is tilted in an elevated position at one side of said bowl, said pan being in spaced relation to said bowl and having a depth so that when in its first position its peripheral lip is at a higher elevation than said open lower end, water flushing means actuable for discharging flush water to the interior of said bowl, and an actuator mechanism connected to said pan and to said water flushing means for moving said pan to its second position and for simultaneously actuating said flushing means to deliver flush water to the bowl while the pan is tilted and for returning the pan to its first position and for rendering said flushing means inactive, said water flushing means including a valve adapted to be opened to supply flush water, a flush water accumulation chamber located adjacent to the upper end of said bowl and downstream of said valve for discharging by gravity a measured quantity of flush water into said bowl after said actuating mechanism has returned the pan to its first position and closed said valve, said flush water accumulation chamber including a wall portion projecting laterally from the rear side of said bowl and defining a channel having a downward slope from its upstream end to its downstream end, the downstream end of said channel being directed into the upper end of said bowl tangentially thereof.

A water closet comprising a bowl having an open upper end and an open lower end, a concave pan beneath said bowl supported for pivotal movement between a first position in which said pan encloses said open lower end and a second position in which said pan is tilted in an elevated position at the rear of said bowl, said pan being supported for pivotal movement around an axis located at the upper end of the bowl and in a vertical transverse plane passing essentially through the center of said open lower end, the portion of the bowl forward of said open lower end having a circular curvature with its center essentially on said axis and the portion of the bowl to the rear of said open lower end having a relatively steeper upwardly inclined surface, the portions of said bowl on opposite sides of said open lower end having relatively steeper upwardly inclined surfaces than said portion of the bowl forward of said open lower end, said portions on opposite sides being relatively closer together than the front and rear portions of said bowl, said pan being in spaced relation to said bowl and having a depth and a configuration so that when in its first position the peripheral lip of the pan is at a higher elevation than said open lower end and the pan closely conforms to the shape of the enclosed lower portion of the bowl, water flushing means actuable for discharging flush water to the interior of said bowl, said pan conforming to the shape of the enclosed lower portion of the bowl so as to provide a wet spot of maximum effective area in the bowl consistent with minimum volume of water when the pan contains water above the level of the lower end of the bowl, an actuator mechanism connected to said pan and to said water flushing means for moving said pan to its second position and for simultaneously actuating said flushing means to deliver flush water to the bowl while the pan is tilted and for returning the pan to its first position and for rendering said flushing means inactive, and a flush water accumulation chamber located adjacent to the upper end of said bowl and downstream of said flushing means for discharging by gravity a measured quantity of flush water into said bowl after said actuating mechanism has returned the pan to its first position.

A water closet comprising a base with a hollow interior and having an upper annular portion for mounting a bowl, a bowl having an open lower end and an open upper end with a downturned flange around the outer periphery thereof, said downturned flange being positioned on and secured to the upper annular portion of said base, a concave pan beneath said bowl supported on the downturned flange for movement between a first position in which said pan encloses said open lower end and a second position in which said pan is tilted in an elevated position at one side of said bowl, the portion of the bowl forward of said open lower end having a circular curvature with its center essentially on the axis of movement of the pan and the portion of the bowl to the rear of said open lower end having a relatively steeper upwardly inclined surface, said pan being in spaced relation to said bowl and having a depth and a configuration so that when in its first position the peripheral lip of the pan is at a higher elevation than said open lower end and the pan closely conforms to the shape of the enclosed lower portion of the bowl, water flushing means actuable for discharging flush water to the interior of said bowl, and an actuator mechanism on the outer side of said downturned flange operatively connected to said pan and to said water flushing means for moving said pan to its second position and for simultaneously actuating said flushing means to deliver flush water to the bowl while the pan is tilted and for returning the pan to its first position and for rendering said flushing means inactive, said water flushing means including a valve adapted to be opened to supply flush water, a flush water accumulation chamber located adjacent to the upper end of said bowl and downstream of said valve for discharging by gravity a measured quantity of flush water into said bowl after said actuating mechanism has returned the pan to its first position and closed said valve.

A water closet comprising a bowl having an open lower end, a concave pan beneath said bowl supported for movement between a first position in which said pan encloses said open lower end and a second position in which said pan is tilted in an elevated position at one side of said bowl, said pan being in spaced relation to said bowl and having a depth so that when in its first position its peripheral lip is at a higher elevation than said open lower end, water flushing means actuable for discharging flush water to the interior of said bowl, and an actuator mechanism connected to said pan and to said water flushing means for moving said pan to its second position and for simultaneously actuating said flushing means to deliver flush water to the bowl while the pan is tilted and for returning the pan to its first position and for rendering said flushing means inactive, said water flushing means including a valve adapted to be opened to supply flush water, a flush water accumulation chamber located adjacent to the upper end of said bowl and downstream of said valve for discharging by gravity a measured quantity of flush water into said bowl after said actuating mechanism has returned the pan to its first position and closed said valve, said flush water accumulation chamber including a wall portion projecting laterally from the rear side of said bowl and defining a channel having a downward slope from its upstream end to its downstream end, the downstream end of said channel being directed into the upper end of said bowl tangentially thereof, and a vacuum breaker riser extending upward in said accumulation chamber at the upstream end of said channel through which flush water can enter said accumulation chamber from said valve, said accumulation chamber including a cover with a vent opening aligned with said vacuum breaker riser, and a vacuum breaker float mounted in said riser for reciprocal movement between a first position closing the upper end of said riser and in response to flush water pressure to an elevated position closing said vent opening, said cover having a configuration so that if flush water should inadvertently be discharged through said vent opening the discharged water will flow to said bowl.