Flush valve assembly

Claim 1

In a flush valve assembly for a water closet tank, a. an upstanding generally cylindrical member within said tank and having a first inlet at the upper end thereof for receiving water and an outlet at the lower end thereof for discharging water adjacent the bottom of said tank with the bore throughout said upstanding member, including Said first inlet, being at least as great as the bore of said outlet, b. a first valve seat surrounding said first inlet, c. a first valve member disposed to move selectively to a lower closed position in sealing engagement with said first valve seat and to an upper open position, d. a laterally disposed inlet for said upstanding member located within said tank at an elevation below said first inlet and adjacent the bottom of said tank with the bore of said laterally disposed inlet being at least as great as the bore of said outlet, e. a second valve seat surrounding said laterally disposed inlet, f. a depending flap valve member pivotally supported for movement selectively to a lower closed position in sealing engagement with said second valve seat and to an upper open position, g. an elongated arm pivotally connected adjacent one end to said tank with the other end thereof being movable in opposite directions, h. a pulley-like member mounted above said first valve member, i. a first flexible member connected at one end thereof to said first valve member and connected at the other end thereof to said elongated arm adjacent said other end thereof with the intermediate portion of said first flexible member passing over said pulley-like member, j. a second flexible member connected at one end thereof to said depending flap valve and connected at the other end thereof to said elongated arm adjacent said other end thereof, and k. a handle member outwardly of said tank and operatively connected to said elongated arm for pivoting said elongated arm in said opposite directions so that downward movement of said other end of said elongated arm opens said first valve member and upward movement of said other end of said elongated arm opens said flap valve so that upon opening said first valve member a minor portion of the contents of said tank is discharged and upon opening said flap valve member a major portion of the contents of said tank is discharged.