Water closet additive means

Details Water closet additive means Water closet additive means

1975-01-17

1976-05-04

Knowles, Allen N.

Baths, closets, sinks, and spittoons

Disinfection

Dispensing to water in flush tank

222 86, 222180, 2224007, E03D 902, B67D 506, B65D 8306

Patent

active

039539024

ABSTRACT:
A device for introducing an additive liquid into a tank of a water closet. When the water closet is flushed and the water level in the tank lowers from a first normal level to a second lower level, air is admitted into conduit means. As the water level later rises from the second level toward the first level, the admitted air is forced through the conduit means into a container, containing an additive liquid, where it is compressed. The compressed air forces a portion of the additive liquid through conduit means and into the water in the tank.

REFERENCES:
patent: 495563 (1893-04-01), Plumb
patent: 853434 (1907-05-01), Blackmere
patent: 1728737 (1929-09-01), Stoner
patent: 1749312 (1930-03-01), Blair
patent: 2658206 (1953-11-01), Martinez
patent: 2839763 (1958-06-01), Newsom
patent: 3200994 (1965-08-01), Levinson et al.
patent: 3342338 (1967-09-01), Selmeczi et al.
patent: 3374927 (1968-03-01), Schmidt

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