US4890791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for eliminating malodorous smells
Assignee: Individual
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Filing: 1988-09-30
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Granted: 1990-01-02
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Expires: 2008-09-30
Abstract
Abstract A device (10) for use in eliminating malodorous smells from a confined area. The device (10) includes a housing (12) defined by a side-wall (14) and walls (18, 22) closing opposite axial ends (16, 24) thereof. A reservoir (20) is defined within the housing (12) within an annular, interior wall (32). An annular space (38) is defined, thereby, between the interior wall (32) and the side-wall (14) of the housing (12). A porous insert (62) formed of fibrous material is received within the annular space (38). An annular ring of wicking material (64) encircles the insert (62), and a plurality of angularly-spaced, radially-extending spoke-like wicks (68) extend from the reservoir (20) to the ring wicking material (64). Liquid neutralizing agent (34) in the reservoir (20) is conducted from the reservoir (20), through the spoke-like wicks (68) to the ring wicking material (64), and, in turn, to the porous insert (62).
Inventors
- 👤 Craig O. Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:19
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/12; A61L9/127; Y; Y10; Y10S; Y10S261/00; Y10S261/88
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
145 words
Apparatus for eliminating malodorous smells in a confined area by distributing a liquid neutralizing agent for exposure to the air in the area, comprising: (a) a circular housing having at least one air flow port formed therein; (b) an annular, fibrous, porous material insert received within said housing so that air flow through said port will pass through said insert, the fibrous structure of said insert being such as to facilitate dispersal of liquid neutralizing agent coming in contact therewith throughout said insert; (c) an enclosure within said housing, defining a reservoir for receiving the liquid neutralizing agent, said reservoir being replenishable as liquid neutralizing agent therein becomes depleted; and (d) an annular ring of wicking material circumferentially enclosing said annular porous material insert, and a plurality of angularly-spaced, radial spokes of wicking material extending from said reservoir to said annular ring of wicking material.
Claim 2
Dependent Claim
145 words
Apparatus for eliminating malodorous smells in a confined area by distributing a liquid neutralizing agent for exposure to the air in the area, comprising: (a) a circular housing having at least one air flow port formed therein; (b) an annular, fibrous, porous material insert received within said housing so that air flow through said port will pass through said insert, the fibrous structure of said insert being such as to facilitate dispersal of liquid neutralizing agent coming in contact therewith throughout said insert; (c) an enclosure within said housing, defining a reservoir for receiving the liquid neutralizing agent, said reservoir being replenishable as liquid neutralizing agent therein becomes depleted; and (d) an annular ring of wicking material circumferentially enclosing said annular porous material insert, and a plurality of angularly-spaced, radial spokes of wicking material extending from said reservoir to said annular ring of wicking material.
Claim 3
Dependent Claim
31 words
Apparatus in accordance with claim 1 wherein said housing includes an annular wall engaging an inside diameter of said porous material insert, said enclosure defining said reservoir comprising said annular wall.
Claim 4
Dependent Claim
260 words
A cartridge for holding and distributing a liquid neutralizing agent to expose the agent to the air in a confined area permeated by malodorous smells, comprising: (a) a cylindrical housing having a first axial end for attachment to a surface in an area from which the malodorous smells are to be eliminated, a wall closing a second axial end of said housing, and an annular circumferential side-wall, said wall closing said second axial end of said housing having a plurality of perforations formed in an annular portion thereof radially outward from a central unperforated portion; (b) an interior annular wall, radially coextensive with said annular side-wall of said housing and concentric therewith, said interior annular wall extending axially from said first axial end of said housing to said wall closing said second axial end of said housing, and being spaced radially inwardly from innermost perforations in said perforated portion of said wall closing said second axial end of said housing to define a reservoir replenishable as liquid neutralizing agent therein becomes depleted; (c) a porous material insert received within said housing between said interior annular wall and said annular side-wall of said housing, and engaging said perforated portion of said wall closing said second axial end of said housing so that air flow through said perforations pass through said insert, said insert having a fibrous structure so as to facilitate dispersal of liquid neutralizing agent coming in contact with said insert therethroughout; and (d) means for conducting the liquid neutralizing agent from said reservoir to various locations about said insert.
Claim 5
Dependent Claim
260 words
A cartridge for holding and distributing a liquid neutralizing agent to expose the agent to the air in a confined area permeated by malodorous smells, comprising: (a) a cylindrical housing having a first axial end for attachment to a surface in an area from which the malodorous smells are to be eliminated, a wall closing a second axial end of said housing, and an annular circumferential side-wall, said wall closing said second axial end of said housing having a plurality of perforations formed in an annular portion thereof radially outward from a central unperforated portion; (b) an interior annular wall, radially coextensive with said annular side-wall of said housing and concentric therewith, said interior annular wall extending axially from said first axial end of said housing to said wall closing said second axial end of said housing, and being spaced radially inwardly from innermost perforations in said perforated portion of said wall closing said second axial end of said housing to define a reservoir replenishable as liquid neutralizing agent therein becomes depleted; (c) a porous material insert received within said housing between said interior annular wall and said annular side-wall of said housing, and engaging said perforated portion of said wall closing said second axial end of said housing so that air flow through said perforations pass through said insert, said insert having a fibrous structure so as to facilitate dispersal of liquid neutralizing agent coming in contact with said insert therethroughout; and (d) means for conducting the liquid neutralizing agent from said reservoir to various locations about said insert.
Claim 6
Dependent Claim
66 words
Apparatus in accordance with claim 3 wherein said porous material insert is annular and has an inside diameter closely approximating an outside diameter of said interior annular wall, said conducting means including an annular ring of wicking material, circumferentially enclosing said annular porous material insert, and a plurality of angularly-spaced, radial spokes of wicking material extending from said reservoir to said annular ring of wicking material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-01 | 1993-07-03 | 1994-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-01 | 1997-07-03 | 1998-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-01 | 2001-07-03 | 2002-01-02 | $7700.00 | Window Closed / Lapsed |