US4485519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ozone cleaning system
Assignee: Carpet Clinic Ltd
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Filing: 1982-05-24
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Granted: 1984-12-04
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Expires: 2002-05-24
Abstract
Abstract The present invention relates to a system for ozone cleaning of surfaces on carpets, furniture, drapery and the like. The system comprises an ozone producing unit and a portable cleaning unit having a cleaning head. The ozone produced in the system is directed past the cleaning head onto the surface to be cleaned while the cleaning head is in operation for maximizing the cleaning effects of the system.
Inventors
- 👤 David S. Collier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:19
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/4038; A47L11/34; A47L13/00; A47L13/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
143 words
A system for ozone cleaning of surfaces on carpets, furniture, drapery and the like, said system comprising an ozone producing unit and a portable cleaning unit having a cleaning head, at least one ozone outlet at said cleaning head, an ozone passage from said ozone producing unit, a blower for blowing ozone along said ozone passage, said ozone producing unit being sealed to prevent escape of ozone therefrom other than from said ozone passage and said at least one ozone outlet directing the ozone under pressure from said blower past said cleaning head at the contaminated surface, and a shroud opening downwardly around said cleaning head and adapted to ride along the surface for maintaining a downward pressurized penetration of the ozone directly into the surface while substantially preventing escape of the ozone other than at the surface for maximizing the cleaning thereof.
Claim 2
Independent Claim
143 words
A system for ozone cleaning of surfaces on carpets, furniture, drapery and the like, said system comprising an ozone producing unit and a portable cleaning unit having a cleaning head, at least one ozone outlet at said cleaning head, an ozone passage from said ozone producing unit, a blower for blowing ozone along said ozone passage, said ozone producing unit being sealed to prevent escape of ozone therefrom other than from said ozone passage and said at least one ozone outlet directing the ozone under pressure from said blower past said cleaning head at the contaminated surface, and a shroud opening downwardly around said cleaning head and adapted to ride along the surface for maintaining a downward pressurized penetration of the ozone directly into the surface while substantially preventing escape of the ozone other than at the surface for maximizing the cleaning thereof.
Claim 3
Dependent Claim
19 words
A system as claimed in claim 1 wherein said ozone producing unit is mounted directly on said cleaning unit.
Claim 4
Dependent Claim
49 words
A system as claimed in claim 2 wherein said cleaning unit is adapted for cleaning floors and rugs with said shroud being secured to said cleaning unit by a flexible seal providing flotation of said shroud for automatic height adjustment of said shroud to the surface to be cleaned.
Claim 5
Dependent Claim
38 words
A system as claimed in claim 3 wherein said ozone passage comprises at least one tube from said ozone unit to said shroud, said at least one tube being flexible to move with the flotation of said shroud.
Claim 6
Dependent Claim
51 words
A system as claimed in claim 1 wherein said ozone producing unit is away from said cleaning unit with said cleaning unit being a hand held size for cleaning furniture and drapery and wherein said ozone passage comprises an elongated flexible tube from said ozone producing unit to said cleaning unit.
Claim 7
Dependent Claim
30 words
A system as claimed in claim 1 wherein said cleaning head is adapted to agitate the contaminated surface as the ozone is directed through the at least one ozone outlet.
Claim 8
Dependent Claim
49 words
A system as claimed in claim 6 including a shroud on said cleaning unit which completely surrounds and is of greater circumference than said cleaning head, said shroud being provided with a plurality of ozone outlets outwardly around said cleaning head for directing the ozone to the contaminated surface.
Claim 9
Dependent Claim
37 words
A system as claimed in claim 7 wherein said ozone passage comprises a plurality of tubes from said ozone unit to said outlets at said shroud, said outlets being spaced away from one another around said shroud.
Claim 10
Independent Claim
50 words
A system as claimed in claims 1, 2 or 5 wherein said ozone producing unit comprises an electrical grid network adapted to provide a corona for producing ozone, said electrical grid network being provided with a control for controlling intensity of the corona to adjust the amount of ozone produced.
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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) | 1987-12-04 | 1988-06-04 | 1988-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-04 | 1992-06-04 | 1992-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-04 | 1996-06-04 | 1996-12-04 | $7700.00 | Window Closed / Lapsed |