US5223105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ozone generator
Assignee: Arthurson Corp Pty Ltd
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Filing: 1990-06-29
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Granted: 1993-06-29
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Expires: 2010-06-29
Abstract
Abstract An ozone generator (1) comprises an ultra-violet lamp (2), means (3, 12, 13) for directing a flow of an oxygen containing gas through a zone (16) in which the gas is exposed to ultra-violet radiator emanating from the lamp, and means (8, 9) to expose the gas to a high voltage, low current electric field prior to or during exposure to ultra-violet radiation. Preferably at least one magnet 15 is associated with lamp 2 so that ionized particles within the lamp are concentrated by a magnetic field to congregate in a localized region in the vicinity of the zone (16).
Inventors
- 👤 Craig J. Arthurson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:07
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/08; B01J19/12; B01J19/122; B01J19/123; C; C01; C01B; C01B13/00; C01B13/10; B01J19/087; B01J2219/00; B01J2219/08; B01J2219/0803; B01J2219/085; B01J2219/0852; B01J2219/0854; C02; C02F; C02F1/00; C02F1/72; C02F1/78
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
67 words
An ozone generator comprising an ultraviolet lamp; means to direct a flow of an oxygen-containing gas through a zone at which the gas is exposed to ultraviolet radiation emanating from the lamp; and means to expose the gas to a voltage exceeding 5000 volts and to a low current, electric field at which there is no visible discharge, prior to or during exposure to the ultraviolet radiation.
Claim 2
Dependent Claim
67 words
An ozone generator comprising an ultraviolet lamp; means to direct a flow of an oxygen-containing gas through a zone at which the gas is exposed to ultraviolet radiation emanating from the lamp; and means to expose the gas to a voltage exceeding 5000 volts and to a low current, electric field at which there is no visible discharge, prior to or during exposure to the ultraviolet radiation.
Claim 3
Dependent Claim
58 words
Apparatus according to claim 1 comprising a housing surrounding the lamp, the housing having a gas inlet and a gas outlet whereby a gas admitted at the inlet is exposed to ultraviolet radiation in a zone between the inlet and the outlet, and at least two spaced apart electrodes between which a high electric potential difference is applied.
Claim 4
Dependent Claim
23 words
Apparatus according to claim 1 wherein the lamp is elongate and the housing tubular, the zone extending between the lamp and the housing.
Claim 5
Dependent Claim
16 words
Apparatus according to claim 2 wherein the inlet is at or adjacent one of the electrodes.
Claim 6
Dependent Claim
15 words
Apparatus according to claim 2 wherein the outlet is intermediate said two spaced apart electrodes.
Claim 7
Dependent Claim
15 words
Apparatus according to claim 2 wherein the electrodes are spaced more than 20 cm apart.
Claim 8
Dependent Claim
14 words
Apparatus according to claim 2 wherein the voltage between the electrodes exceeds 15000 Volts.
Claim 9
Dependent Claim
11 words
Apparatus according to claim 2 wherein said electrodes are rod electrodes.
Claim 10
Dependent Claim
110 words
An ozone generator comprising an ultraviolet lamp; means to direct a flow of an oxygen-containing gas through a zone at which the gas is exposed to ultraviolet radiation emanating from the lamp; means to expose the gas to a voltage exceeding 5000 volts and to a low current electric field at which there is no visible discharge, prior to or during exposure to the ultraviolet radiation; and at least one magnet associated with the lamp such that, in use, ionized particles within the lamp are influenced by a magnetic field to congregate in one or more localized regions whereby to concentrate ultra-violet radiation emanating from the lamp in the zone.
Claim 11
Dependent Claim
110 words
An ozone generator comprising an ultraviolet lamp; means to direct a flow of an oxygen-containing gas through a zone at which the gas is exposed to ultraviolet radiation emanating from the lamp; means to expose the gas to a voltage exceeding 5000 volts and to a low current electric field at which there is no visible discharge, prior to or during exposure to the ultraviolet radiation; and at least one magnet associated with the lamp such that, in use, ionized particles within the lamp are influenced by a magnetic field to congregate in one or more localized regions whereby to concentrate ultra-violet radiation emanating from the lamp in the zone.
Claim 12
Dependent Claim
23 words
Apparatus according to claim 9 wherein the magnet is one of a pair of magnets disposed with the like poles facing one another.
Claim 13
Dependent Claim
41 words
Apparatus according to claim 9 wherein the magnet is spaced from the exterior of the lamp by a gap and the magnet concentrates ultra-violet radiation in the gap so that air passing through the gap experiences a high intensity of radiation.
Claim 14
Dependent Claim
26 words
Apparatus according to claim 9 wherein the magnet is torroidal and surrounds a portion of the lamp being spaced from the lamp by an annular gap.
Claim 15
Independent Claim
66 words
A method for generating ozone comprising the steps of: directing a flow of an oxygen-containing gas through a zone at which the gas is exposed to ultraviolet radiation emanating from an ultra-violet lamp; and exposing the gas to a voltage exceeding 5000 volts and to a low current electric field at which there is no visible discharge, prior to or during exposure to the ultraviolet radiation.
Claim 16
Independent Claim
66 words
A method for generating ozone comprising the steps of: directing a flow of an oxygen-containing gas through a zone at which the gas is exposed to ultraviolet radiation emanating from an ultra-violet lamp; and exposing the gas to a voltage exceeding 5000 volts and to a low current electric field at which there is no visible discharge, prior to or during exposure to the ultraviolet radiation.
Claim 17
Dependent Claim
20 words
A method according to claim 13 wherein the electric field is provided by electrodes spaced more than 20 cm apart.
Claim 18
Dependent Claim
52 words
A method according to claim 14 further including the steps of subjecting ionized particles within the lamp to a magnetic field effective to congregate the ions in one or more localized regions whereby to concentrate the ultra-violet radiation emanating from the lamp in a zone, and directing the gas through the zone.
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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) | 1996-06-28 | 1996-12-28 | 1997-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-28 | 2000-12-28 | 2001-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-28 | 2004-12-28 | 2005-06-29 | $7700.00 | Window Closed / Lapsed |