US4882129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ozone generator cell
Assignee: Sharp Corp
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Filing: 1987-08-26
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Granted: 1989-11-21
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Expires: 2007-08-26
Abstract
Abstract An ozone generator cell of a novel design includes a thin ceramic sheet sandwiched between a perforated metallic sheet serving as discharge electrode and a water-cooled aluminum base. Dry air or oxygen is passed over the electrode surface and a high-voltage, high-frequency electric field is applied between the electrode and the base for a corona discharge.
Inventors
- 👤 Dana Andrews
- 👤 Hiroji Hanawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:56
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/10; C01B13/11; C01B2201/00; C01B2201/10; C01B2201/12; C01B2201/20; C01B2201/22; C01B2201/24; C01B2201/30; C01B2201/34; C01B2201/70; C01B2201/74; C01B2201/76
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
111 words
An ozone generator cell comprising one or more combinations each including a thermally conductive solid metallic plate-like base forming a part of water cooling means and having a planar flat surface, a planar ceramic sheet separated from cooling water of said cooling system by said base and attached by a surface-to-surface contact to said flat surface of said base, and a discharge electrode attached to said cramic sheet distal from said base, enclosure means with an inlet and outlet adapted to cause a gas to flow therein from said inlet to said outlet over said discharge electrode, and means for causing a corona discharge between said discharge electrode and said base.
Claim 2
Dependent Claim
111 words
An ozone generator cell comprising one or more combinations each including a thermally conductive solid metallic plate-like base forming a part of water cooling means and having a planar flat surface, a planar ceramic sheet separated from cooling water of said cooling system by said base and attached by a surface-to-surface contact to said flat surface of said base, and a discharge electrode attached to said cramic sheet distal from said base, enclosure means with an inlet and outlet adapted to cause a gas to flow therein from said inlet to said outlet over said discharge electrode, and means for causing a corona discharge between said discharge electrode and said base.
Claim 3
Dependent Claim
12 words
The ozone generator cell of claim 1 wherein said base comprises aluminum.
Claim 4
Dependent Claim
19 words
The ozone generator cell of claim 1 wherein ceramic sheet is attached to said base in thermally conductive relationship.
Claim 5
Dependent Claim
19 words
The ozone generator cell of claim 1 wherein said ceramic sheet is attached to said base by silicone bonding.
Claim 6
Dependent Claim
16 words
The ozone generator cell of claim 1 wherein said ceramic sheet is brazed to said base.
Claim 7
Dependent Claim
13 words
The ozone generator cell of claim 1 wherein said ceramic sheet comprises alumina.
Claim 8
Dependent Claim
16 words
The ozone generator cell of claim 1 wherein said discharge electrode comprises a perforated metal sheet.
Claim 9
Dependent Claim
16 words
The ozone generator cell of claim 7 wherein said perforated metal sheet has a honeycomb pattern.
Claim 10
Dependent Claim
13 words
The ozone generator cell of claim 1 wherein said discharge electrode comprises tungsten.
Claim 11
Dependent Claim
17 words
The ozone generator cell of claim 1 wherein said discharge electrode comprises aluminum, TiB 2 or BN.
Claim 12
Dependent Claim
23 words
The ozone generator cell of claim 1 wherein two of said combinations are disposed opposite to each other, sandwiching said enclosure means therebetween.
Claim 13
Dependent Claim
21 words
The ozone generator cell of claim 11 wherein said discharge electrodes of said two combinations are separated by about 1/2 inch.
Claim 14
Dependent Claim
38 words
The ozone generator cell of claim 11 further comprising two plugs each supported by one of said combinations in an electrically insulated manner and establishing an electrical contact with the discharge electrode of the other of said combinations.
Claim 15
Dependent Claim
35 words
The ozone generator cell of claim 13, wherein each of said plugs comprises a conductor rod surrounded by a tubular insulative member and biasing means for pressing said rod against one of said discharge electrodes.
Claim 16
Dependent Claim
18 words
The ozone generator cell of claim 1 wherein said corona discharge causing means comprise a high-frequency high-voltage source.
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) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |