Baths – closets – sinks – and spittoons – Ventilation – Electric-motor pump
Reexamination Certificate
2007-01-23
2007-01-23
Le, Huyen (Department: 3751)
Baths, closets, sinks, and spittoons
Ventilation
Electric-motor pump
C004S217000
Reexamination Certificate
active
11251356
ABSTRACT:
A system for removing odorous air from a toilet bowl into a sewer line includes a toilet seat defining a plurality of air inlets spaced apart along a bottom side and an air outlet at a rear side with an internal channel connecting the air inlets and outlet. The system includes an air pump suitable for mounting to a rear of the toilet for connection to the toilet seat with tubing. A pressure sensor on the seat actuates the pump to draw air through the inlets to the pump upon sensing the pressure of a user thereon. Additional tubing extends from the pump through the toilet wax ring for exhausting the air into a sewer line. A check valve on the additional tubing prevents return of sewer gas into the system.
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Le Huyen
Ream Dale J.
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