Baths – closets – sinks – and spittoons – Ventilation – Electric-motor pump
Patent
1991-07-11
1993-01-19
Cuchlinski, Jr., William A.
Baths, closets, sinks, and spittoons
Ventilation
Electric-motor pump
4216, E03D 9052
Patent
active
051797380
ABSTRACT:
A remotely operable exhaust blower is operatively associated with the upper discharge end of the vent pipe of a recreational vehicle holding tank. A vent line including an inlet end and an outlet end is provided with its outlet end opening downwardly into a closed passage which communicate the waste outlet of the toilet with the inlet of the holding tank. The inlet end of the vent line is communicated with the flushing water supply passage for the toilet bowl through the utilization of a float-type liquid flow preventing valve which allows downstream flow of odors and gases therethrough, prevents downstream flow of liquid under pressure therethrough and prevents upstream flow of gases therethrough in the absence of water pressure in the flushing water supply pipe upstream from the valve.
REFERENCES:
patent: 1290615 (1919-01-01), McGary
patent: 2728921 (1956-01-01), Dorko
patent: 3059245 (1962-10-01), Bell
patent: 3122757 (1964-03-01), Sowards
patent: 3681790 (1972-08-01), Dooley
patent: 3938201 (1976-02-01), McGrew
patent: 4318192 (1982-03-01), Williams et al.
patent: 4922557 (1990-05-01), Harding et al.
Cuchlinski Jr. William A.
Worth W. Morris
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