US5433923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indoor humidifier and air purifier
Assignee: Individual
•
Filing: 1993-11-10
•
Granted: 1995-07-18
•
Expires: 2013-11-10
Abstract
Abstract A room humidifier and air purifier withdraws air from ambient room atmosphere into a region having a living plant with its roots in a growing media of highly adsorbent activated carbon and zeolite; passing air preferably downward through such media and back into the air over hot light bulbs which destroy undesirable airborne mold spores. The light bulbs are also used to supply sufficient light for plant growth and aesthetics through indirect lighting on the plant leaves.
Inventors
- 👤 Billy C. Wolverton
- 👤 John D. Wolverton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:13
CPC Classifications
A; A62; A62B; A62B11/00; A61; A61L; A61L9/00; A61L9/015; A61L9/02; A61L9/03; A61L9/037; B; B01; B01D; B01D53/00; B01D53/34; B01D53/74; B01D53/84; B01D53/85; F; F24; F24F; F24F8/00; F24F8/10; F24F8/15; F24F8/158; F24F8/175; F24F2221/00; F24F2221/02; F24F2221/12; Y; Y02; Y02A; Y02A50/00; Y02A50/20
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
100 words
An apparatus for purifying and humidifying air within a confined space comprising: a container for containing a living plant, said container defining a root zone therewithin for the growth of root; a water reservoir defined within said container; an air permeable growth media within said container separate from, but connected to, said water reservoir for capillary water flow therefrom, said media being unsaturated with water; means for drawing air into and through said growth media and for expelling said air into a confined space surrounding said container; and an area of expanded clay, inside said container beneath said growth media.
Claim 2
Independent Claim
100 words
An apparatus for purifying and humidifying air within a confined space comprising: a container for containing a living plant, said container defining a root zone therewithin for the growth of root; a water reservoir defined within said container; an air permeable growth media within said container separate from, but connected to, said water reservoir for capillary water flow therefrom, said media being unsaturated with water; means for drawing air into and through said growth media and for expelling said air into a confined space surrounding said container; and an area of expanded clay, inside said container beneath said growth media.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 said water reservoir further comprising: an area of expanded clay, filling said container beneath said growth medium.
Claim 4
Dependent Claim
79 words
The apparatus of claim 1, said water reservoir further comprising: an open annular water chamber within said container; said annular water chamber surrounding a central axial zone within said container; said annular water chamber being spaced a distance from the sidewalls of said container; said area of expanded clay filling said central axial area and a layer of expanded clay surrounding said annular water chamber; and means for conducting water reservoir from said reservoir into said expanded clay area.
Claim 5
Dependent Claim
39 words
The apparatus of claim 3, said means for conducting water further comprising: a plurality of vertical wicks extending within said central axial area from within said expanded clay in said central axial area up to within said growth media.
Claim 6
Dependent Claim
61 words
The apparatus of claim 1, said means for drawing and expelling air further comprising: a horizontally disposed toroidal air inlet, having air flow perforations, disposed within said growth media; a plurality of ducts extended for air flow from said air inlet to an exhaust fan within said container; said exhaust fan exhausting air through a clean air outlet of said container.
Claim 7
Dependent Claim
99 words
The apparatus of claim 1, wherein said means for drawing and expelling air comprise: at least one set of a plurality of perforated tubes extending from within the said water reservoir up to within said growth media; at least one perforated horizontal tube interconnecting a respective of said vertical perforated tubes; an exhaust fan means connecting the top of at least one of said vertical perforated tubes, for air flow, with an inlet to said an exhaust fan; said exhaust fan drawing air from said perforated tube, expelling said air from a clean air outlet of said exhaust fan.
Claim 8
Dependent Claim
22 words
The apparatus of claim 5 wherein said clean air outlet is a plurality of louvers located around a base of said container.
Claim 9
Dependent Claim
22 words
The apparatus of claim 6 wherein said clean air outlet is a plurality of louvers located within a base of said container.
Claim 10
Independent Claim
65 words
The apparatus of claim;1, said means for drawing and expelling air further comprises: a plurality of a clean air outlets, each comprising a duct extending up the outside of said apparatus; means within each said duct for applying radiant energy into air flowing out of said clean air outlet; said radiant energy decreasing the microbe and spore content of clean air emitted from said duct.
Claim 11
Dependent Claim
34 words
The apparatus of claim 9, said means for applying radiant energy comprising: a growth lamp within the outlet of each said duct, said growth lamp illuminating the base of a plant within said container.
Claim 12
Dependent Claim
32 words
The apparatus of claim 9, said means for applying radiant energy comprising: an incandescent lamp within each clean air duct, said incandescent lamp illuminating the base of a plant within said container.
Claim 13
Dependent Claim
19 words
The apparatus of claim 9, said means for applying radiant energy comprising: an ultraviolet light source within each duct.
Claim 14
Dependent Claim
62 words
The apparatus of claim 5, said means for expelling air comprise: a plurality of clean air outlets, each comprising a duct extending up the outside of said apparatus; means within each said duct for imposing radiant energy into air flowing out of said clean air outlet; said radiant energy decreasing the microbe and spore content of clean air emitted from said duct.
Claim 15
Dependent Claim
63 words
The apparatus of claim 6, said means for expelling air further comprises: a plurality of clean air outlets, each comprising a duct extending up the outside of said apparatus; means within each said duct for imposing radiant energy into air flowing out of said clean air outlet; said radiant energy decreasing the microbe and spore content of clean air emitted from said duct.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-07-17 | 1999-01-16 | 1999-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-17 | 2003-01-16 | 2003-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-17 | 2007-01-16 | 2007-07-18 | $7700.00 | Window Closed / Lapsed |