Apparatus for dispensing metered quantity of liquid

Claim 1

Apparatus for dispensing a metered quantity of liquid into a toilet bowl or the like, which comprises: a reservoir for containing said liquid; means, connected to said reservoir, for supporting said reservoir within the tank of said toilet; a downwardly extending member fastened to said reservoir and having a first, annular recess formed therein communicating with said reservoir by means of an inlet port; a downwardly extending first rod passing through a bore in said member; a first float secured to the lower end of said first rod; a first washer attached tO the other end of said rod, said washer being pressed into sealing engagement with said inlet port when the water level in said tank rises, said first float being actuated by a fall in the level of water in said tank to cause said first rod, and hence said first washer, to admit liquid from said resevoir into said first annular recess; and means, actuated by said fall in water level, for inhibiting discharge of the liquid in said recess into a discharge tube communicating with said toilet bowl, said admitting and inhibiting means being actuated, seriatim, by a rising level of water in said tank to first terminate the admission of liquid into said recess and, second, to permit the liquid in said recess to flow into said tube, hence, to said toilet bowl.