(under subclass 405) Subject matter having an element mounted on and extending through the tank wall which is movable toward or away from the tank to cause a mechanism therein to actuate the valve.
SEE OR SEARCH THIS CLASS, SUBCLASS:
406, for a push button device which actuates an electrical device to cause a flush.
407, for a push button device which actuates a pneumatic or hydraulic device to cause a flush.
408+, for a push button device which actuates a flush valve by a seat.