Patent US4877588A successfully refreshed from Google Patents.
US4877588A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for generating ozone by corona discharge
Assignee: Trineos
•
Filing: 1988-06-17
•
Granted: 1989-10-31
•
Expires: 2008-06-17
Abstract
Abstract Ozone is added to captured water by a method and apparatus which involves corona discharge into an oxygen-containing gas in regions in a generator which alternate with regions where the newly formed ozone is cooled. The alternating corona and cooling regions permit the ozone to form without being thermally decomposed as soon as it is formed. Also disclosed is an overall system and method of controlling the level of dissolved ozone in a body of captured water which modulates the output of an ozone generator in accordance with readings of oxidation-reduction potential in the water.
Inventors
- 👤 Lee C. Ditzler
- 👤 Ronald F. Lemberger
- 👤 Cynthia L. Slezak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:27
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/10; C01B13/11; C01B2201/00; C01B2201/10; C01B2201/14; C01B2201/40; C01B2201/60; C01B2201/66; C01B2201/70; C01B2201/74; C01B2201/76; C02; C02F; C02F1/00; C02F1/72; C02F1/78
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
161 words
Apparatus for generating ozone from an oxygen-containing gas: an inner cylinder of thermally conductive dielectric material surrounded by an intermediate cylinder of thermally and electrically conductive material to define a first annular space, said intermediate cylinder surrounded by an external cylinder to define a second annular space; a passage at one end of said inner cylinder communicating the interior thereof with said first annular space, whereby gas emerging from said inner cylinder is directed into said first annular space to flow therethrough countercurrent to said gas in said inner cylinder; a plurality of conductive bands along the interior surface of said dielectric cylinder to define corona discharge regions in said first annular space, said conductive bands spaced apart axially to define corona-free regions therebetween of sufficient axial dimension to permit removal of heat generated in said corona discharge regions by heat exchange through said inner cylinder and said through said intermediate cylinder; and means for supplying current to said conductive bands.
Claim 2
Dependent Claim
161 words
Apparatus for generating ozone from an oxygen-containing gas: an inner cylinder of thermally conductive dielectric material surrounded by an intermediate cylinder of thermally and electrically conductive material to define a first annular space, said intermediate cylinder surrounded by an external cylinder to define a second annular space; a passage at one end of said inner cylinder communicating the interior thereof with said first annular space, whereby gas emerging from said inner cylinder is directed into said first annular space to flow therethrough countercurrent to said gas in said inner cylinder; a plurality of conductive bands along the interior surface of said dielectric cylinder to define corona discharge regions in said first annular space, said conductive bands spaced apart axially to define corona-free regions therebetween of sufficient axial dimension to permit removal of heat generated in said corona discharge regions by heat exchange through said inner cylinder and said through said intermediate cylinder; and means for supplying current to said conductive bands.
Claim 3
Dependent Claim
37 words
Apparatus in accordance with claim 1 in which said conductive bands are from about 2 cm to about 20 cm in width, and said corona-free regions are from about 2 cm to about 20 cm in width.
Claim 4
Dependent Claim
32 words
Apparatus in accordance with claim 1 in which said first annular space defines a gap between said inner cylinder and said intermediate cylinder of from about 1 mm to about 3 mm.
Claim 5
Dependent Claim
43 words
Apparatus in accordance with claim 1 in which said current supplying means comprises an electric cable passing through said inner cylinder and means for transmitting current from said electric cable to said conductive bands while permitting the passage of said oxygen-containing gas therethrough.
Claim 6
Dependent Claim
28 words
Apparatus in accordance with claim 4 in which said current transmitting means is a series of circular brushes extending from said electric cable to contact said conductive bands.
Claim 7
Dependent Claim
18 words
Apparatus in accordance with claim 4 further comprising means for passing liquid coolant through said second annular space.
Claim 8
Dependent Claim
221 words
Apparatus for generating ozone from an oxygen-containing gas: an inner cylinder of thermally conductive dielectric material surrounded by an intermediate cylinder of thermally and electrically conductive material with a gap therebetween of from about 1 mm to about 3 mm to define a first annular space, said intermediate cylinder surrounded by an external cylinder to define a second annular space; a passage at one end of said inner cylinder communicating the interior thereof with said first annular space, whereby gas emerging from said inner cylinder is directed into said first annular space to flow therethrough countercurrent to said gas in said inner cylinder; means for passing liquid coolant through said second annular space; a plurality of conductive bands of about 2 cm to about 20 cm in width along the interior surface of said dielectric cylinder to define corona discharge regions in said first annular space, said conductive bands spaced apart axially to define corona-free regions therebetween of sufficient axial dimension ranging from about 2 cm to about 20 cm in width to permit removal of heat generated in said corona discharge regions by heat exchange through said inner cylinder and said through said intermediate cylinder; and an electric cable passing through said inner cylinder and a series of circular brushes extending from said electric cable to contact said conductive bands.
Claim 9
Dependent Claim
221 words
Apparatus for generating ozone from an oxygen-containing gas: an inner cylinder of thermally conductive dielectric material surrounded by an intermediate cylinder of thermally and electrically conductive material with a gap therebetween of from about 1 mm to about 3 mm to define a first annular space, said intermediate cylinder surrounded by an external cylinder to define a second annular space; a passage at one end of said inner cylinder communicating the interior thereof with said first annular space, whereby gas emerging from said inner cylinder is directed into said first annular space to flow therethrough countercurrent to said gas in said inner cylinder; means for passing liquid coolant through said second annular space; a plurality of conductive bands of about 2 cm to about 20 cm in width along the interior surface of said dielectric cylinder to define corona discharge regions in said first annular space, said conductive bands spaced apart axially to define corona-free regions therebetween of sufficient axial dimension ranging from about 2 cm to about 20 cm in width to permit removal of heat generated in said corona discharge regions by heat exchange through said inner cylinder and said through said intermediate cylinder; and an electric cable passing through said inner cylinder and a series of circular brushes extending from said electric cable to contact said conductive bands.
References Cited (Backward Citations)
US1130827A
Cited
US1050260A
Cited
US1074462A
Cited
US3364129A
Cited
US3671417A
Cited
US4216096A
Cited
US4320301A
Cited
US4410495A
Cited
US4504446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-10-30 | 1993-05-01 | 1993-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-30 | 1997-05-01 | 1997-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-30 | 2001-05-01 | 2001-10-31 | $7700.00 | Window Closed / Lapsed |