Baths – closets – sinks – and spittoons – Tubs – Particular construction or configuration details
Patent
1975-03-05
1976-05-25
Artis, Henry K.
Baths, closets, sinks, and spittoons
Tubs
Particular construction or configuration details
4 34, 4 37, 4 58, E03D 134, E03D 502, A61B 1900
Patent
active
039582817
ABSTRACT:
A toilet tank flush valve having a primary valve element for sealing the tank outlet opening and a secondary valve mounted therein. The secondary valve has a valve seat mounted on the primary valve and a movable valve element which couples the primary valve to the lift rod. Partial elevation of the lift rod opens the secondary valve without opening the primary valve and permits reclosure of the secondary valve for partial emptying of the tank. Full elevation of the lift rod opens the primary valve for complete tank opening.
REFERENCES:
patent: 2709263 (1955-05-01), Doty
patent: 2716242 (1955-08-01), Robinson
patent: 2940084 (1960-06-01), Fabbi et al.
patent: 3005206 (1961-10-01), Dollinger
patent: 3151337 (1964-10-01), Deniz
patent: 3186007 (1965-06-01), Falotico
patent: 3758893 (1973-09-01), Smolinski et al.
patent: 3869733 (1975-03-01), White
Artis Henry K.
Wiviott Fred
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