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Withdrawing the air from the airspace in a tightly closed water tank may create suction pressure especially when the toilet is flushed.
The inefficiency in withdrawing the odorous air from the sleeve into the exhaust pipe can be a drawback with this system, because only low air pressure can be applied so that the water within the sleeve is not also withdrawn.
A drawback in this system rests on the efficiency of the system, which in turn, is limited by the volume of odorous air th
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[0140] For the purposes of promoting an understanding of the principles of the invention, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.
[0141] As shown in FIG. 1, the present invention contemplates ventilation apparatus 10 for eliminating odor from traditional flush toilet 11. Toilet 11 generally includes toilet bowl 12 with rim 13 defining a plurality of holes 13A, water tank 14 with lid 6, discharge conduit 15 connecting bowl 12 and tank 14, and passageway 16 providing communication between tank 14, discharge conduit 15, and rim 13. Toilet 11 includes flush valve 17 disposed above discharge conduit 15, flush valve 17 having flapper 18 for opening and closing passageway 16 to allow movement of water from tank 14 into discharge conduit 15, water in conduit 15 is distributed along passageway 16 within rim 13 and into bowl 12 through the plurality of holes 13A.
[0142] According to one aspect of the pres...
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Abstract
An odor evacuation and mitigation system for a bathroom space including a central evacuation fan system, an odor evacuation system for a toilet having a toilet bowl, an automatic flushing system, and a steam and moisture ventilation system. The fan system includes an enclosure having a motor and fan therein and connected to an exhaust hose for expelling odors. The odor evacuation system for a toilet includes a flush valve in communication with a pipe, connected to an external suction device for removal of odors, through an overflow pipe and an evacuation pipe. The automatic flushing system includes a sensor connected to a servomotor for rotation of an actuation lever connected to a flush valve. The steam ventilation system includes a manifold body disposed over a shower enclosure and having a grille through which air flows into the manifold body and outward through an externally extending hose.
Description
CROSS-REFERENCE TO RELATED PCT AND U.S. APPLICATIONS[0001] This is a continuation-in-part application of co-pending PCT Application Serial No. PCT / US01 / 50232, filed Dec. 20, 2001, and designating the United States, which is a continuation-in-part of co-pending U.S. patent application Ser. No. 09 / 742,771, filed Dec. 20, 2000.[0002] 1. Field of the Invention[0003] The present invention relates generally to room ventilation systems.[0004] 2. Background Art[0005] Various types of toilet assemblies having an odor mitigation system are known in the art. An efficient way for odor removal from a water closet is by drawing odorous air from the toilet bowl through the flush rim. Ventilation systems utilizing this air passage have been disclosed in U.S. Pat. Nos. 3,703,010, 4,165,544, 4,583,250, 4,989,276, 5,321,856, and 5,617,590.[0006] The system described in the '010 patent includes a suction means in air communication with the airspace between the water within the water tank and the lid of...
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