Patent US5474750A successfully refreshed from Google Patents.
US5474750A
Expired / Lapsed
US
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Resonant power supply circuit for ozone generators
Assignee: QUANTUM ZONE LLC
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Filing: 1995-01-25
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Granted: 1995-12-12
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Expires: 2015-01-25
Abstract
Abstract An ozone generator is provided, with a resonant power circuit to energize the corona plates. The circuit includes a pair of transistors where the primary winding of the transformer acts as the collector load on each of the transistors. Additionally, two other transistors are provided for safety purposes to short the base signal of the power transistors if the power supply to the ozone generating plates gets too high. The circuit is resonant thereby requiring low power consumption. The resonant circuit takes full advantage of the characteristics of the transformer to quickly and efficiently energize the plates for the generation of corona for the purpose of creating ozone.
Inventors
- 👤 William Racca
- 👤 Edward F. Racca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:10
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/10; C01B13/11; C01B13/115; G; G05; G05F; G05F3/00; G05F3/02; G05F3/08; G05F3/10; G05F3/16; G05F3/20; G05F3/22
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
91 words
In an ozone generator a transformer having a pair of primary windings and a secondary winding coupled by a high reluctance core, the secondary winding being connected to a pair of plates capable of generating corona, a multivibrator coupled to the primary windings having a first switch that conducts through a first primary in one direction and a second switch that conducts through the other primary in the other direction, the secondary winding having a resonant network that is reflected in the primary winding whereby substantially a sine wave is generated.
Claim 2
Dependent Claim
91 words
In an ozone generator a transformer having a pair of primary windings and a secondary winding coupled by a high reluctance core, the secondary winding being connected to a pair of plates capable of generating corona, a multivibrator coupled to the primary windings having a first switch that conducts through a first primary in one direction and a second switch that conducts through the other primary in the other direction, the secondary winding having a resonant network that is reflected in the primary winding whereby substantially a sine wave is generated.
Claim 3
Dependent Claim
136 words
In an ozone generator a resonant power supply circuit comprising: a direct current source having a positive terminal and a negative terminal; a transformer having a center tapped primary winding and a secondary winding; a pair of high-power transistors; said positive terminal being connected to the collectors of said high-power transistors through said center tap of the primary winding of the transformer; a first pair of resistors; bases of said high-power transistors being cross coupled through said first pair of resistors to collectors of said high-power transistors; a pair of low-power transistors; said low-power transistors coupling said first pair of resistors to ground through the collector-emitter junction of said low-power transistors, respectively; and a pair of plates separated by a suitable dielectric capable of generating corona for the production of ozone connected across the secondary winding.
Claim 4
Dependent Claim
136 words
In an ozone generator a resonant power supply circuit comprising: a direct current source having a positive terminal and a negative terminal; a transformer having a center tapped primary winding and a secondary winding; a pair of high-power transistors; said positive terminal being connected to the collectors of said high-power transistors through said center tap of the primary winding of the transformer; a first pair of resistors; bases of said high-power transistors being cross coupled through said first pair of resistors to collectors of said high-power transistors; a pair of low-power transistors; said low-power transistors coupling said first pair of resistors to ground through the collector-emitter junction of said low-power transistors, respectively; and a pair of plates separated by a suitable dielectric capable of generating corona for the production of ozone connected across the secondary winding.
Claim 5
Dependent Claim
19 words
The circuit of claim 2, wherein said transformer has a ratio of primary winding to secondary winding of 1:400.
Claim 6
Dependent Claim
15 words
The circuit of claim 2, wherein said first pair of resistors are each 3300 ohms.
Claim 7
Dependent Claim
15 words
The circuit of claim 2, wherein said second pair of resistors are each 0.82 ohms.
Claim 8
Dependent Claim
12 words
The circuit of claim 2, wherein said high-power transistors are each D44H11.
Claim 9
Dependent Claim
12 words
The circuit of claim 2, wherein said low-power transistors are each 2N3904.
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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) | 1998-12-11 | 1999-06-12 | 1999-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-12-11 | 2003-06-12 | 2003-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-12-11 | 2007-06-12 | 2007-12-12 | $7700.00 | Window Closed / Lapsed |