Filtration assembly for reducing malaodors in air and aerosolized waste from toilets

Abstract

An assembly for filtering toilet bowl odors including a first housing respectively disposed in spaced relation to and in fluid communication with the toilet bowl. A conduit connects interiors of the first and second housings in fluid communication with one another. A fan assembly is mounted within said first housing in fluid communicating relation with second housing, via the conduit, and is disposed and structured to define a path of fluid flow extending from an inlet of said second housing, through said conduit and a filter assembly, disposed in the first housing and/or second housing, to the exterior of said first housing, concurrent to activation of the fan assembly.

Claims

1. An assembly for filtering odors from a commercial toilet bowl comprising: a first housing disposed in spaced relation to the commercial toilet bowl and including a filter assembly, a second housing adjacent the commercial toilet bowl and including an inlet disposed in fluid communicating relation with an interior of the commercial toilet bowl, said first housing disposed vertically above said second housing and the commercial toilet bowl in supported attachment to a supportive wall, said second housing and said inlet disposed in supported attachment to a plumbing fixture, above and rearwardly of the commercial toilet bowl and a toilet seat thereon, a conduit extending vertically upward from said second housing to said first housing along and in adjacent relation to the supportive wall; said conduit disposed in interconnecting, fluid communicating relation between interiors of said first and second housings, a fan assembly mounted within said first housing in fluid communicating relation with said conduit, said fan assembly disposed to direct fluid flow from said conduit through said interior of said first housing and outwardly therefrom to an exterior of said first housing, and wherein activation of said fan assembly defining a path of fluid flow extending from the commercial toilet bowl, into said inlet, through said second housing and along said conduit into said first housing and through said filter assembly, to the exterior of said first housing.

2. The assembly as recited in claim 1 wherein said filter assembly includes a first filter unit structured to process odor in fluid passing therethrough.

3. The assembly as recited in claim 2 wherein said first filter unit comprises a carbon-based filter.

4. The assembly as recited in claim 2 wherein said filter assembly further comprises a second filter unit structured to process particulates in aerosolized fluid passing therethrough.

5. The assembly as recited in claim 4 wherein said second filter unit comprises a HEPA filter.

6. The assembly as recited in claim 4 further comprising a fluid sterilizing assembly disposed within said first housing, downstream of said conduit and upstream of said fan assembly.

7. The assembly as recited in claim 6 wherein said fluid sterilizing assembly comprises a plurality of UV light units disposed in vertically spaced relation to one another and collectively disposed in a transverse orientation relative to said path of fluid flow.

8. The assembly as recited in claim 7 wherein said first filter unit, said second filter unit and said fluid sterilizing assembly are disposed within said path of fluid flow.

9. The assembly as recited in claim 1 further comprising a fluid sterilizing assembly, including at least one UV light unit, disposed within said first housing in a transverse orientation relative to said path of fluid flow and downstream of said conduit and upstream of said fan assembly.

10. The assembly as recited in claim 1 further comprising a sensor assembly mounted on said first housing and structured and disposed to determine the use of the commercial toilet bowl by an individual; said sensor assembly connected in activating relation to said fan assembly.

11. The assembly as recited in claim 10 wherein said sensor assembly comprises a motion sensor.

12. The assembly as recited in claim 10 wherein said first housing and said sensor assembly face outwardly from the supportive wall for said first housing, in an exposed relation to a substantially frontal portion of the commercial toilet bowl.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) For a fuller understanding of the nature of the present invention, reference should be had to the following detailed description taken in connection with the accompanying drawings in which:

(2) FIG. 1 is a perspective view of one embodiment of the assembly of the present invention in an assembled form.

(3) FIG. 2A is a schematic representation of the assembly of the embodiment of FIG. 1 in one operative position.

(4) FIG. 2B is a schematic representation of the assembly of the embodiment of FIG. 1 in a different operative position from that represented in FIG. 2A.

(5) FIG. 3 is a perspective interior view of a first housing of the embodiment of the assembly as represented in FIG. 1.

(6) FIG. 4A is an exterior perspective view of a second housing of the embodiment of the assembly as represented in FIG. 1

(7) FIG. 4B is a longitudinal sectional view in perspective of the interior of the embodiment of FIG. 4A.

(8) FIG. 4C is a transverse sectional view in perspective of the interior of the embodiment of FIGS. 4A and 4B.

(9) FIG. 5 is a front elevational view in schematic form of one operative position of the embodiment of FIGS. 4A-4C.

(10) FIG. 6 is a perspective view of yet another embodiment of the assembly of the present invention operatively positioned at different toilet structures.

(11) FIG. 7 is a front perspective view in partial cutaway of a portion of the embodiment of the assembly as represented in FIG. 6.

(12) FIG. 8 is an interior view in schematic form of the embodiment of the assembly as represented in FIG. 6.

(13) FIG. 9 is a longitudinal sectional view of the interior of the schematic representation of the embodiment of FIG. 8.

(14) Like reference numerals refer to like parts throughout the several views of the drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

(15) The present invention is directed to an assembly for filtering odors issuing from a toilet bowl, including one or more embodiments which are operative to filter/remove odors from air and/or aerosolized fluid or “toilet plume”, resulting from the toilet being flushed. As described hereinafter in greater detail, different ones of a possible plurality of embodiments of the filtering assembly may be structurally and operatively adapted for use in either a domestic environment or commercial environment and/or both.

(16) Therefore, with primary reference to FIGS. 1-5 at least one preferred embodiment of the filtering assembly is generally indicated as 10 and comprises a first housing 12 and a second housing 14. As schematically represented in FIGS. 2A-2B, the first housing 12 is disposed in spaced relation to the toilet bowl 100, such as being mounted on the water tank 102 operatively associated with the toilet bowl 100. In addition, the second housing 14 is adapted to be removably mounted and/or supported on an outer peripheral rim 100′ of the toilet bowl 100 in immediately adjacent, fluid communicating relation with the interior 103 of the toilet bowl 100. The operative positioning of the second housing 14 may vary, such as being mounted on a side portion of the toilet bowl 100, as represented in FIG. 2A and/or on a rear portion of the toilet bowl 100, substantially adjacent the connecting area 105 of a toilet seat 106 (see FIG. 5), as represented in FIG. 2B.

(17) The filtering assembly 10 further includes an elongated, preferably flexible material conduit 16 disposed in interconnecting, fluid communicating relation with the interiors of both the first housing 12 and the second housing 14. As demonstrated, the length and flexibility of the conduit 16 may also vary so as to facilitate selective dispositioning and mounting of the second housing 14 in different operative locations on the outer/upper periphery 100′ of the toilet bowl 100, as represented in FIGS. 2A-2B. In order to facilitate shipping, storage, installation, maintenance, etc. of the filtering assembly 10, the conduit 16 is removably connected to both the first and second housing 12 and 14 respectively.

(18) Also, the first and second housings 12 and 14 may be removably but securely disposed in different operative positions on the toilet bowl 100 and water tank 102 utilizing an adhesive, or other appropriate connecting structure. Such an adhesive or other connecting structure is preferably disposed on or directly associated with under or rear surface portions of the first and second housings 12 and 14, which engage the water tank 102 and toilet bowl periphery 100′, respectively.

(19) With primary reference to FIG. 3, structural and operative features of the first housing 12 includes an at least partially hollow interior appropriately dimensioned to enclose a plurality of operative components. More specifically, the first housing 12 includes a fan assembly generally indicated as 18 comprising at least one but alternatively a plurality of fan units 20. As represented, the one or more fan units 20 are operatively disposed to direct fluid from the interior of the first housing 12 and conduit 16 outwardly to an exterior of the first housing 12 into the area or space surrounding the toilet 100. As indicated, the conduit 16 is removably connected to the first housing 12 by an appropriate fitting 16′, such that the interior the conduit 16 is disposed in direct fluid communication with the interior the first housing 12.

(20) Additional structural components within the first housing 12 includes control circuitry generally indicated as 24 which may be in the form of a printed circuit board or other appropriate circuitry, which in turn may be powered by a battery 26 or in the alternative by an AC power source (not shown). Because of the structural and operative versatility of the filtering assembly 10 including, but not limited to, it being battery-powered as well as its ease-of-use, installation, maintenance, etc., as set forth above, the filtering assembly 10 may be suited for use in a home and/or domestic environment.

(21) Also, in order to assure an adequate and effective filtering of fluid passing from the interior of the toilet bowl 100 through the filtering assembly 10, the first housing 12 may also include a secondary filter 22 to be used in conjunction with a primary filter 36, both of which may be activated carbon, associated with the second housing 14, as explained in greater detail hereinafter.

(22) Accordingly, as primarily represented in FIGS. 4A-4C, the second housing 14 comprises a filter segment 30 and a connector segment 32 removably connected to one another such that the interiors thereof are disposed in direct fluid communication with one another. In addition, the filter segment 30 includes an air/fluid inlet 34 formed at and at least partially defining an outer end of the filter segment 30. Also, a primary filter structure 36 is fixedly disposed within the interior of the filter segment 30 in direct fluid communication with fluid passing into the interior of the filter segment 30 through the inlet 34.

(23) The connector segment 32 includes an appropriate fitting as at 16″ which facilitates a removable connection to a corresponding end of the conduit 16. As such, when the filter assembly 10 is assembled as represented in at least FIGS. 1 and 2A-2B, the interior of the elongated conduit 16 is disposed in direct fluid communication with the interior of the second housing 14 including the interiors of both the removably connected filter segment 30 and the connector segment 32 and the interior of the first housing 12.

(24) Further, the removable connection between the filter segment 30 and the connector segment 32 of the second housing 14 may be defined by a substantially telescopic and/or snap-fit connection as represented in both FIGS. 4A-4B. As such, the inner end of the filter segment 14 may be at least partially flexible so as to at least partially pass into the interior of the open inner end 32′ of the connector segment 32. Further, the inner end of the filter segment 30 includes fixation ribs or like structures 38 disposed, dimensioned and configured to be removably received within a correspondingly disposed apertures or recesses 38′ formed adjacent the inner end 32′ of the connector segment 32. The flexibility of at least the inner end portion of the filter segment 14 will result in the one or more fixation ribs 38 being “snap-fit” into the correspondingly disposed one or more recesses 38′.

(25) The removable connection of the filter segment 30 from the connector segment 32 facilitates the connector segment 14 and the filter 36 contained therein being accurately described as a replaceable, “single-use” filter medium. More specifically, after a predetermined period of use, the filter 36 may require replacement in order to efficiently operate. Replacement of the filter 36 is accomplished by removal of the second housing 14 from its operative position (see FIGS. 2A-2B) and the subsequent detachment of the filter segment 30 from the connector segment 32. Once detached, the filter segment 30 and the filter 36 fixedly retain therein are collectively structured for disposal. Thereafter, a new or replacement filter segment 30 and fixedly retained filter 36 may be reattached to the connector segment 32 for continued use of the filter assembly 10, once the second housing 14 is disposed in the intended operative position.

(26) Accordingly, once completely assembled and disposed in the intended operative position as represented in FIG. 2A or FIG. 2B, a path of fluid flow is defined and/or established from the inlet 34 of the filter segment 30 of the second housing 14 through the filter 36, the interior of the connector segment 32, along the length of the interior of the conduit 16, into and through the first housing 12, through the secondary filter 28 and out of the first housing 12, through the fan assembly 18, comprising the one or more fan units 20.

(27) Additive features of the filter assembly 10 may comprise the inclusion of additional fragrance or scent materials 40 disposed in one or both the first and second housings 12 and 14 as clearly represented in at least FIGS. 4B and 4C.

(28) In order to assure proper operative placement of the second housing 14 in direct, fluid communicating relation with the interior 103 of the toilet bowl 100, an outer end 14′ of the filter segment 14 is appropriately dimensioned and configured to fit within a clearance space 109, beneath a closed seat 106 associated with the toilet bowl 100, as schematically represented in FIG. 5. For purposes of clarity the filter assembly 10, specifically including the second housing 14, is not accurately oriented in order to properly represent the spacing 109 between the toilet seat 106 and the upper or outer periphery 100′.

(29) As commonly structured and utilized, the toilet seat 106 in spaced above the periphery 100′ due to the provision of the one or more bumpers 107, typically attached to the undersurface of the toilet seat 106. In cooperation therewith and with reference to FIG. 4A the outer end 14′ of the filter segment 14 in the area contiguous and/or adjacent to the inlet 34 has a reduced “height” 14″, preferably in the range of generally about 13 mm. As such the reduced height of the outer end 14′ of the filter segment 14 is sufficiently dimensioned and configured to fit within the space 109 between the toilet seat 106 and the outer periphery 100′, in direct fluid communication with the interior 103 of the toilet bowl 100, as schematically represented by directional arrow 111.

(30) As represented in FIGS. 6-9, one or more additional embodiments of the present invention may include a filter assembly 10′, structurally and operatively similar to the above described embodiment of the filter assembly 10, but may be more adapted for use in a commercial environment, as represented in FIG. 6. As such, the at least one additional embodiment of the present invention includes the filter assembly 10′ having a first housing 50 disposed in spaced relation to the toilet bowl 100 and also in spaced relation to a second housing 52. When in a commercial environment, the first housing 50 may be mounted on an exposed surface of a wall 110 adjacent to the toilet bowl 100. Further, because of its operative disposition in a commercial environment the filtering assembly 10′ may be powered by a conventional AC power supply via a wired connection 112. As also represented in FIG. 6, the filtering assembly 10′ includes an elongated conduit 54 disposed in interconnecting, fluid communicating relation between the interiors of the first housing 50 and the second housing 52. As such, the elongated conduit 54 may be operatively similar to the conduit 16 of the above described filtering assembly 10.

(31) With primary reference to FIG. 7, the second housing 52 includes an inlet 56 operatively disposed immediately adjacent an interior 103 of the toilet bowl 100, such that the inlet 56 is in fluid receiving, fluid communicating relation with the interior 103 of the toilet bowl 100. In order to provide stability, the second housing 52 may be connected to or otherwise supported by a water pipe and/or plumbing fixture 114 associated with the toilet bowl 100 and operative to facilitate the flushing thereof.

(32) As represented in FIGS. 8 and 9, the first housing 50 includes a filter assembly generally indicated as 58, contained therein. In addition, a fan assembly generally indicated as 60 is mounted within the first housing 50 in fluid communication with the conduit 54 and through the conduit 54, in fluid communication with the interior of the second housing 52 and the inlet 56 associated therewith. Therefore, the fan assembly 60, when activated, is disposed and structured to direct fluid flow 120 exiting the conduit 54, through the interior of the first housing 50 and outwardly therefrom to an exterior of the first housing 50, as schematically represented by directional arrows 120′, subsequent to being filtered by filter assembly 58. Accordingly, an activation of the fan assembly 60, within the interior of the first housing 50, defines or establishes a path of fluid flow 120 extending from said inlet 56 of the second housing 52, through the conduit 54 and into the interior of the first housing 50, through the filter assembly 58, to the exterior of the first housing 50 and back into the space, area or environment surrounding the toilet bowl 100.

(33) Yet additional features of the additional one or more embodiments of the filter assembly 10′, which may render it more adaptable for use in a commercial environment, comprise the filter assembly 58 including a first filter unit 64 and a second filter unit 66, both located in the path of fluid flow 120, downstream of the conduit 54 and upstream of the fan assembly 60. The first filter unit 64 may be a carbon-based and/or carbon activated filter, primarily operative to remove odors from air/gas passing there through. The second filter unit 66 of the filter assembly 58 is preferably structured to process aerosolized fluid and any particulate matter contained therein. As such the second filter unit 66 may comprise an HEPA filter. As indicated, aerosolized fluid may result from the toilet being flushed and the creation of a “toilet plume”, possibly containing odor causing particulate waste material.

(34) It is also noted and recognized that the inlet 56 of the second housing 52 is disposed immediately adjacent and preferably exteriorly of the interior 103 of the toilet bowl 100. Accordingly, the fan assembly 60 is adequately powered and otherwise structured to expose the interior 103 of the toilet bowl 100 to a sufficiently strong fluid flow, to “draw” and/or collect aerosolized fluid along the path of fluid flow 120, from the interior 103 of the toilet bowl 100, through the inlet 56 and through the conduit 54, into the interior of the first housing 50, through the filter assembly 58 and outwardly from the exterior of the first housing 50.

(35) In addition to the filter assembly 58 including, the first and second filter units 64 and 66 respectively, a fluid sterilizing assembly 70 may be disposed along the path of fluid flow 120, within the first housing 50, upstream of the conduit 54 and downstream of the fan assembly 60. The sterilizing assembly 70 may comprise at least one or in the alternative a plurality of ultraviolet (UV) lights 72 disposed in the aforementioned path of fluid flow 120 exiting from the filter assembly 58, or otherwise passing through the interior of the first housing 50.

(36) Possible installation and use of this additional embodiment of the filter assembly 10′ of the present invention may include a sensor assembly 74 such as, but not limited to, a motion sensor. The sensor assembly 74 may be preferably mounted on and at least partially exposed location on the first housing 50 facing a frontal portion of the toilet bowl 100 and be so positioned/oriented to detect the presence of an individual utilizing the toilet bowl 100. The sensor assembly 74 may be further structured to activate the fan assembly 60 while an individual remains in a predetermined detection zone, associated with the use of the toilet bowl 100. Automatic shutoff of the fan assembly 60 will result upon an absence of an individual from the aforementioned detection zone. Powering of the fan assembly 60 may best be accomplished by the direct wired connection 112 to the conventional AC power source, typically associated with most commercial locations, which include restrooms and or semi-public toilet facilities. Interconnection of the fan assembly 60, sensor assembly 74, one or more light units 72 and other electrically powered structures of the filter assembly 10′ may be accomplished by appropriate control circuitry such as, but not limited to, printed circuitry 24, as described above with reference to the filtering assembly 10.

(37) As a possible additive feature, a fragrance scent dispensing device or structure 40′ may be included within the interior of the first housing 50 similar to the fragrance or scent dispensing structure 40 of the embodiment of FIGS. 4B and 4C.

(38) Since many modifications, variations and changes in detail can be made to the described preferred embodiment of the invention, it is intended that all matters in the foregoing description and shown in the accompanying drawings be interpreted as illustrative and not in a limiting sense. Thus, the scope of the invention should be determined by the appended claims and their legal equivalents.