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US3824637A Expired / Lapsed US ⏱️ 0.0 years remaining

Ventilating attachment for water closet

Assignee: Individual
•
Filing: 1972-10-27
•
Granted: 1974-07-23
•
Expires: 1992-10-27
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Abstract

Abstract In order to provide very efficient and effective ventilation of a water closet, a collector having an exhaust coupled to suction means is disposed directly beneath the seat at the rear thereof. The collector is held in place by and between the hinge bolts of the seat, and has a downwardly directed inlet opening which extends over the center rear portion of the bowl. A passageway, which is taller than its narrowest portion, extends laterally between the seat and the water reservoir of the water closet to effect a conduit between the inlet and exhaust openings. The exhaust opening is coupled, by means of a flexible hose, to the suction means comprising a motor driven centrifugal air pump. The air pump may discharge to a conduit leading outdoors or to another convenient discharge space, or the air from the bowl may be pulled by the suction pump through filtering means, such as activated charcoal, after which it is discharged into the local environment. With the latter configuration, a self-contained pump/filter unit is provided, and the activated charcoal is disposed within a chamber having a baffle which prevents ''''tunneling'''' of the flowing air through the charcoal after a period of use. The collector is provided with upwardly directed lips about both the inlet and exhaust openings to achieve a double trap against any water which might inadvertently enter the collector, thereby preventing any water from entering the flexible tubing to prevent electrical malfunctions of the motor driving the air pump.

Inventors

  • 👤 C Hunnicutt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 17:00
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/04; E03D9/05; E03D9/052

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 217 words
A system for ventilating a water closet bowl comprising: a. a collector unit having an inlet opening symmetrically disposed about the bowl fore and aft centerline and positioned at the rear thereof, said collector unit also having an outlet aperture in direct communication with said inlet opening, said inlet opening and said outlet aperture of said collector unit being in direct communication by a laterally extending chamber, a first passage coupling said inlet opening to said laterally extending chamber and terminating therein in an upwardly lipped aperture, said outlet aperture being defined by an upwardly extending circumferential lip; b. an air pump means having an intake and an exhaust; c. conduit means coupling said outlet aperture of said collector unit to said air pump intake; d. an air recirculating and treatment housing having an inlet coupled to said conduit means, said housing including an inner chamber and a quantity of activated charcoal at least partially filling said inner chamber, said housing further including said air pump means for drawing air from said collector unit, through said inner chamber and discharging the air through said air pump exhaust into the water closet environment; and e. air deflector means disposed in said inner chamber directly in the path of the gaseous mixture to prevent tunneling through the activated charcoal.
Claim 2
Independent Claim 217 words
A system for ventilating a water closet bowl comprising: a. a collector unit having an inlet opening symmetrically disposed about the bowl fore and aft centerline and positioned at the rear thereof, said collector unit also having an outlet aperture in direct communication with said inlet opening, said inlet opening and said outlet aperture of said collector unit being in direct communication by a laterally extending chamber, a first passage coupling said inlet opening to said laterally extending chamber and terminating therein in an upwardly lipped aperture, said outlet aperture being defined by an upwardly extending circumferential lip; b. an air pump means having an intake and an exhaust; c. conduit means coupling said outlet aperture of said collector unit to said air pump intake; d. an air recirculating and treatment housing having an inlet coupled to said conduit means, said housing including an inner chamber and a quantity of activated charcoal at least partially filling said inner chamber, said housing further including said air pump means for drawing air from said collector unit, through said inner chamber and discharging the air through said air pump exhaust into the water closet environment; and e. air deflector means disposed in said inner chamber directly in the path of the gaseous mixture to prevent tunneling through the activated charcoal.
Claim 3
Dependent Claim 63 words
The system of claim 1 in which said air pump means comprises an impeller, an electrical motor driving said impeller, an air exhaust chamber radially outboard of said impeller for receiving air moved by said impeller, an exhaust outlet coupling said exhaust chamber to a lower chamber, and at least one discharge aperture in said lower chamber communicating with the water closet environment.
Claim 4
Dependent Claim 16 words
The system of claim 2 including a plurality of discharge apertures circumferentially distributed about said housing.
Claim 5
Dependent Claim 73 words
The system of claim 3 in which said collector unit further includes first and second wing portions extending laterally on opposite sides of said inlet opening, first and second fixing apertures through, respectively, said first and second wing portions, said first and second fixing apertures spaced from one another to align with conventially spaced seat securing bolts whereby said collector may be secured in place by passing the bolts through said fixing apertures.

References Cited (Backward Citations)

US2017590A Cited
US2728088A Cited
US2747201A Cited
US2988756A Cited
US3230551A Cited
US3366979A Cited
US3335431A Cited
US3386109A Cited
US3491382A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-07-22 1978-01-21 1978-07-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-07-22 1982-01-21 1982-07-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-07-22 1986-01-21 1986-07-23 $7700.00 Window Closed / Lapsed

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