Baths – closets – sinks – and spittoons – Ventilation – Electric-motor pump
Reexamination Certificate
2007-10-02
2007-10-02
Huson, Gregory L. (Department: 3751)
Baths, closets, sinks, and spittoons
Ventilation
Electric-motor pump
C004S216000, C004S348000, C004S351000, C004S352000
Reexamination Certificate
active
10711824
ABSTRACT:
A ventilation system for a toilet which functions by drawing air from around the bowl through the original flush holes into the existing overflow-pipe and then into a fan compartment. The fan is activated by manipulating the flush handle upward. Malodorous air is then forced through an exhaust pipe into the sewage line downstream of the gas trap. The fan is deactivated when the flush handle is pressed downward and the toilet is flushed. A water-trap between the fan and the toilet tank prevents the malodorous air from escaping into the tank. The water in the water trap is changed with each flush by redirecting the refill tube into the water trap. This prevents the water in the water trap from becoming stagnant.
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Hoerbelt Bryan
Huson Gregory L.
Mahone Kristie A.
Smith & Hopen
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