Baths – closets – sinks – and spittoons – Dry closets – With heating meas
Patent
1979-04-17
1980-12-02
Artis, Henry K.
Baths, closets, sinks, and spittoons
Dry closets
With heating meas
417213, 220 85, E04H 316, E04H 318
Patent
active
042362580
ABSTRACT:
An automatic cover for a liquid storage container and a method of control corresponding thereto including a cover disposed within the container, a membrane connected to a portion of the storage container and connected along a peripheral portion of the membrane to the cover, the membrane and the cover separating the storage container into a liquid storage compartment and a liquid balancing compartment, a pressurized mechanism connected to the peripheral portion of the membrane for controlling the shape and dimension of the cover and a member for feeding balancing liquid to and for withdrawing balancing liquid from the liquid balancing compartment in such a manner that hydrostatic pressure of the storage container is maintained within any predetermined range.
REFERENCES:
patent: 2731168 (1956-01-01), Watts
patent: 2924350 (1960-02-01), Greer
patent: 3509585 (1970-05-01), Solomon
patent: 3523308 (1970-08-01), Bradley
patent: 3533110 (1970-10-01), Gisondi
patent: 3600721 (1971-08-01), Pusey
patent: 3667070 (1972-06-01), Pitti et al.
patent: 3732581 (1973-05-01), Pitti et al.
patent: 3780385 (1973-12-01), Dunn
patent: 3810262 (1974-05-01), Strand
patent: 3813704 (1974-06-01), Troiano
Artis Henry K.
French Masterpieces, Incorporated
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