US3891561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corona generator apparatus
Assignee: Atlantic Richfield Co
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Filing: 1973-09-07
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Granted: 1975-06-24
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Expires: 1993-09-07
Abstract
Abstract A corona generator method and apparatus preferably for generating ozone, employing a plurality of corona generating cells each comprising a pair of parallel spaced-apart electrodes having a fired-on coating of porcelain enamel. The electrodes are connected to an AC voltage source of sufficient voltage to generate a corona discharge, and an oxygen-containing gas is passed between the electrodes to generate ozone. A high concentration ozone is produced as well as a large quantity of ozone, without water cooling, and at voltages of approximately 6,000 volts. An equation setting forth, for the first time, the interrelationships between the various parameters in a corona generator is derived by Applicant. According to the invention, the corona power is maximized by maximizing the expression Epsilon /Td, where epsilon is the dielectric constant of te porcelain enamel coating and Td is the dielectric thickness.
Inventors
- 👤 Frank Eugene Lowther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:24
CPC Classifications
H; H01; H01T; H01T19/00; C; C01; C01B; C01B13/00; C01B13/10; C01B13/11; B; B01; B01J; B01J2219/00; B01J2219/08; B01J2219/0803; B01J2219/0805; B01J2219/0845; B01J2219/0849; C01B2201/00; C01B2201/10; C01B2201/12; C01B2201/30; C01B2201/34
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
6 words
A PAIR OF ADJACENT, SPACED-APART, ELECTRODES;
Claim 2
Dependent Claim
6 words
A PAIR OF ADJACENT, SPACED-APART, ELECTRODES;
Claim 3
Dependent Claim
26 words
AN OZONE GENERATOR COMPRISING: A. A CORONA GENERATING CORE INCLUDING A PLURALITY OF SEPARATE, INDIVIDUAL CORONA GENERATING CELLS; B. EACH OF SAID CORONA GENERATING CELLS COMPRISING:
Claim 4
Dependent Claim
26 words
AN OZONE GENERATOR COMPRISING: A. A CORONA GENERATING CORE INCLUDING A PLURALITY OF SEPARATE, INDIVIDUAL CORONA GENERATING CELLS; B. EACH OF SAID CORONA GENERATING CELLS COMPRISING:
Claim 5
Dependent Claim
61 words
a continuous, air-tight dielectric spacer gasket of corona and ozone resistant material, positioned between and in contact with the internal facing surface of each electrode of said pair of electrodes of each cell around the entire periphery of each of said electrodes, for defining a corona generating chamber between said internal facing surfaces of said electrodes and interiorly of said gasket;
Claim 6
Dependent Claim
61 words
a continuous, air-tight dielectric spacer gasket of corona and ozone resistant material, positioned between and in contact with the internal facing surface of each electrode of said pair of electrodes of each cell around the entire periphery of each of said electrodes, for defining a corona generating chamber between said internal facing surfaces of said electrodes and interiorly of said gasket;
Claim 7
Dependent Claim
19 words
The apparatus according to claim 1 including means for forcing cooling air through said passageways for cooling said core.
Claim 8
Dependent Claim
61 words
A CONTINUOUS, AIR-TIGHT DIELECTRIC SPACER GASKET OF CORONA AND OZONE RESISTANT MATERIAL, POSITIONED BETWEEN AND IN CONTACT WITH THE INTERNAL FACING SURFACE OF EACH ELECTRODE OF SAID PAIR OF ELECTRODES OF EACH CELL AROUND THE ENTIRE PERIPHERY OF EACH OF SAID ELECTRODES, FOR DEFINING A CORONA GENERATING CHAMBER BETWEEN SAID INTERNAL FACING SURFACES OF SAID ELECTRODES AND INTERIORLY OF SAID GASKET;
Claim 9
Dependent Claim
61 words
A CONTINUOUS, AIR-TIGHT DIELECTRIC SPACER GASKET OF CORONA AND OZONE RESISTANT MATERIAL, POSITIONED BETWEEN AND IN CONTACT WITH THE INTERNAL FACING SURFACE OF EACH ELECTRODE OF SAID PAIR OF ELECTRODES OF EACH CELL AROUND THE ENTIRE PERIPHERY OF EACH OF SAID ELECTRODES, FOR DEFINING A CORONA GENERATING CHAMBER BETWEEN SAID INTERNAL FACING SURFACES OF SAID ELECTRODES AND INTERIORLY OF SAID GASKET;
Claim 10
Dependent Claim
24 words
The apparatus according to claim 2 wherein said spacer means are electrically conductive and electrically connect adjacent electrodes of adjacent cells to each other.
Claim 11
Dependent Claim
13 words
means for feeding an oxygen-containing gas into and ozone out of said chamber;
Claim 12
Dependent Claim
13 words
means for feeding an oxygen-containing gas into and ozone out of said chamber;
Claim 13
Dependent Claim
13 words
MEANS FOR FEEDING AN OXYGEN-CONTAINING GAS INTO AND OZONE OUT OF SAID CHAMBER;
Claim 14
Dependent Claim
13 words
MEANS FOR FEEDING AN OXYGEN-CONTAINING GAS INTO AND OZONE OUT OF SAID CHAMBER;
Claim 15
Dependent Claim
12 words
MEANS FOR SEALING SAID CHAMBER AIR-TIGHT AND FOR MAINTAINING SAID CHAMBER AIR-TIGHT;
Claim 16
Dependent Claim
12 words
MEANS FOR SEALING SAID CHAMBER AIR-TIGHT AND FOR MAINTAINING SAID CHAMBER AIR-TIGHT;
Claim 17
Dependent Claim
12 words
means for sealing said chamber air-tight and for maintaining said chamber air-tight;
Claim 18
Dependent Claim
12 words
means for sealing said chamber air-tight and for maintaining said chamber air-tight;
Claim 19
Dependent Claim
21 words
The apparatus according to claim 3 wherein each of said coatings comprises a plurality of separate, individually fired-on porcelain enamel coats.
Claim 20
Dependent Claim
98 words
a fired-on coating of porcelain enamel dielectric material covering the entire internal surface in said chamber of each of said electrodes said coating being fired on at a temperature greater than 1,000* F; c. spacer means positioned between adjacent cells in said core for spacing said cells a predetermined distance apart, said spacer means having cooling passageways therethrough, and each of said electrodes having substaNtially all of its external surface in heat-exchange relationship to at least one of said cooling passageways; and d. the total thickness of both coatings of dielectric material together being less than 20 mils.
Claim 21
Dependent Claim
98 words
a fired-on coating of porcelain enamel dielectric material covering the entire internal surface in said chamber of each of said electrodes said coating being fired on at a temperature greater than 1,000* F; c. spacer means positioned between adjacent cells in said core for spacing said cells a predetermined distance apart, said spacer means having cooling passageways therethrough, and each of said electrodes having substaNtially all of its external surface in heat-exchange relationship to at least one of said cooling passageways; and d. the total thickness of both coatings of dielectric material together being less than 20 mils.
Claim 22
Dependent Claim
57 words
The apparatus according to claim 4 wherein said plurality of layers on each electrode includes a ground coat having a thickness of about 2 1/2 mils fired-on at a temperature of about 1,480* F., and at least one cover coat having a thickness of about 4 1/2 mils and fired on at a temperature of about 1,420*F.
Claim 23
Dependent Claim
97 words
A FIRED-ON COATING OF PORCELAIN ENAMEL DIELECTRIC MATERIAL COVERING THE ENTIRE INTERNAL SURFACE IN SAID CHAMBER OF EACH OF SAID ELECTRODES SAID COATING BEING FIRED ON AT A TEMPERATURE GREATER THAN 1,000*F; C. SPACER MEANS POSITIONED BETWEEN ADJACENT CELLS IN SAID CORE FOR SPACING SAID CELLS A PREDETERMINED DISTANCE APART, SAID SPACER MEANS HAVING COOLING PASSAGEWAYS THERETHROUGH, AND EACH OF SAID ELECTRODES HAVING SUBSTANTIALLY ALL OF ITS EXTERNAL SURFACE IN HEAT-EXCHANGE RELATIONSHIP TO AT LEAST ONE OF SAID COOLING PASSAGEWAYS; AND D. THE TOTAL THICKNESS OF BOTH COATINGS OF DIELECTRIC MATERIAL TOGETHER BEING LESS THAN 20 MILS.
Claim 24
Dependent Claim
97 words
A FIRED-ON COATING OF PORCELAIN ENAMEL DIELECTRIC MATERIAL COVERING THE ENTIRE INTERNAL SURFACE IN SAID CHAMBER OF EACH OF SAID ELECTRODES SAID COATING BEING FIRED ON AT A TEMPERATURE GREATER THAN 1,000*F; C. SPACER MEANS POSITIONED BETWEEN ADJACENT CELLS IN SAID CORE FOR SPACING SAID CELLS A PREDETERMINED DISTANCE APART, SAID SPACER MEANS HAVING COOLING PASSAGEWAYS THERETHROUGH, AND EACH OF SAID ELECTRODES HAVING SUBSTANTIALLY ALL OF ITS EXTERNAL SURFACE IN HEAT-EXCHANGE RELATIONSHIP TO AT LEAST ONE OF SAID COOLING PASSAGEWAYS; AND D. THE TOTAL THICKNESS OF BOTH COATINGS OF DIELECTRIC MATERIAL TOGETHER BEING LESS THAN 20 MILS.
Claim 25
Dependent Claim
68 words
The apparatus according to claim 5 including means for holding said cells and spacers together and including a pair of pressure plates for applying substantially uniform pressure inwardly over the external surface of the outer two electrodes of said core, for maintaining the electrodes of all cells parallel to each other, wherein said holding means includes means for separately removing individual ones of said cells from said core.
Claim 26
Dependent Claim
47 words
The apparatus according to claim 6 wherein said feeding means includes a separate inlet and outlet port, both ports extending through one electrode of each cell, and including a gas feeding tube connected to each port and extending out of said core through one of said passageways.
Claim 27
Dependent Claim
37 words
The apparatus according to claim 1 wherein said means for sealing said chamber air-tight include a sealant outside of said chamber and between each electrode and an outer periphery of said gasket located outside of said chamber.
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) | 1978-06-23 | 1978-12-23 | 1979-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-23 | 1982-12-23 | 1983-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-23 | 1986-12-23 | 1987-06-24 | $7700.00 | Window Closed / Lapsed |