US3622492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ozone generator
Assignee: IIT Research Institute
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Filing: 1968-12-18
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Granted: 1971-11-23
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Expires: 1988-12-18
Abstract
Abstract To provide a compact ozone generator, films of polymeric material are employed as dielectrics in combination with flat, planar electrodes to produce ozone by silient electrical discharge in an oxygen containing gas stream. The electrodes and dielectrics are cooled by the gas stream which is recycled across the electrodes and dielectrics and through an external heat exchanger.
Inventors
- 👤 Layton C Kinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:13
CPC Classifications
F; F28; F28D; F28D7/00; F28D7/08; C; C01; C01B; C01B13/00; C01B13/10; C01B13/11; F28D7/082; F28D7/085; C01B2201/00; C01B2201/10; C01B2201/12; C01B2201/30; C01B2201/32; C01B2201/34; C01B2201/70; C01B2201/74
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
26 words
An apparatus in accordance with claim 1 in which said dielectrics are in the form of films of about 0.5 to 10 mils in cross-sectional thickness.
Claim 2
Independent Claim
121 words
An apparatus for producing ozone comprising, means defining a generating station chamber in which ozone is generated from a gas stream having oxygen therein, a heat exchanger in fluid communication with said generating station chamber for cooling the gas stream as it flows therethrough, means for recirculating said gas stream through said chamber and said heat exchanger, and ozone-generating means in said chamber having flat, planar electrodes and dielectrics formed of films of polymeric material for generating a silent electrical discharge for producing ozone in the gas stream, said dielectrics being so thin in cross section as to be non-self-sustaining, and means holding said dielectrics in a flat and tensioned state and in planes parallel to the planes of the electrodes.
Claim 3
Dependent Claim
45 words
An apparatus in accordance with claim 3, in which said electrodes are nonhollow, flat, planar plates having length and breadth dimEnsions substantially in excess of a depth dimension whereby said plates have large surface to mass ratios for transfer of heat to said gas stream.
Claim 4
Dependent Claim
31 words
An apparatus in accordance with claim 4 in which means are provided for holding said film dielectrics in flat planes and spacing said film dielectrics at uniform spacings from one another.
Claim 5
Independent Claim
186 words
An apparatus for producing ozone comprising, means defining a generating station chamber in which ozone is generated from a gas stream maintained at a substantially constant pressure in its flow into and through said generating station and having oxygen therein, a heat exchanger external to said generating station, duct means connecting said external heat exchanger in fluid communication with said generating station chamber for conveying the gas stream to recycle said gas stream through said external heat exchanger, means in said external heat exchanger providing a separate passageway for the flow of a cooling medium through said external heat exchanger to cool the recycling ozone-bearing gas stream flowing through said external heat exchanger, means for recirculating said gas stream through said duct means and said external heat exchanger at a flow rate in excess of 1 c.f.m./ft.2 of generating electrode surface, and ozone-generating means in said chamber having flat, planar electrodes and thin, flat, platelike dielectrics of polymeric material having a cross-sectional thickness of less than 0.010 inch for generating a silent electrical discharge for producing ozone in the gas stream flowing through said ozone-generating means.
Claim 6
Dependent Claim
28 words
An apparatus in accordance with claim 13 in which said flat platelike electrodes and dielectrics have at least one flat planar side thereof in face to face contact.
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |