Patent US6178371B1 successfully refreshed from Google Patents.
US4293775A
Expired / Lapsed
US
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Ozone pipe for ozone production plant
Assignee: Mannesmann Demag AG
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Filing: 1979-11-13
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Granted: 1981-10-06
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Expires: 1999-11-13
Abstract
Abstract An ozone pipe is provided for use in a large production plant employing a large number of such pipes in parallel. The pipe of the invention avoids the usual drawbacks for such pipes in large plants in having the metal electrodes melt without discharge of the fuse, or having the fuses discharge in a large number of pipes simultaneously without any indication in the glass pipes of the cause. The above is achieved by the use of a fuse with a capacity within the range of between about 0.63 and 0.15 amperes, and by providing a resistance in each tube mounted in series with the fuse in the power supply.
Inventors
- 👤 Ewald Feuerstake
- 👤 Klaus Schwarz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:11
CPC Classifications
C; C01; C01B; C01B13/00; C01B13/10; C01B13/11; C01B2201/00; C01B2201/10; C01B2201/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
144 words
In an ozone production pipe for use with a plurality of such pipes in parallel in a large ozone production plant employing several hundred pipes, said production pipe comprising (a) a tubular body comprised of a dielectric material; (b) a metal jacket electrode encasing said body; (c) a counter-electrode in the form of a metal coating on the inside of said tubular body; (d) an electrical current supply connection mounted in one end of said tubular body; (e) means in said body providing electrical flow communication between said electrical current supply connection and said counter-electrode; (f) a high voltage fuse mounted in said flow communication means; the improvement characterized by (g) said high voltage fuse having a capacity within the range of between about 0.15 to 0.63 amperes; and (h) a resistance is mounted in said flow communication means in series with said fuse.
Claim 2
Dependent Claim
144 words
In an ozone production pipe for use with a plurality of such pipes in parallel in a large ozone production plant employing several hundred pipes, said production pipe comprising (a) a tubular body comprised of a dielectric material; (b) a metal jacket electrode encasing said body; (c) a counter-electrode in the form of a metal coating on the inside of said tubular body; (d) an electrical current supply connection mounted in one end of said tubular body; (e) means in said body providing electrical flow communication between said electrical current supply connection and said counter-electrode; (f) a high voltage fuse mounted in said flow communication means; the improvement characterized by (g) said high voltage fuse having a capacity within the range of between about 0.15 to 0.63 amperes; and (h) a resistance is mounted in said flow communication means in series with said fuse.
Claim 3
Dependent Claim
20 words
The apparatus of claim 1, further characterized by (a) the capacity of said high voltage fuse is about 0.2 amperes.
Claim 4
Dependent Claim
24 words
The apparatus of claim 1, further characterized by (a) said resistance is provided by an element that changes its resistance depending on the current.
Claim 5
Dependent Claim
14 words
The apparatus of claim 1, further characterized by (a) said resistance is a semi-conductor.
Claim 6
Dependent Claim
83 words
The apparatus of claim 1, further characterized by (a) said tubular body is open at the end thereof adjacent said power supply connection; (b) an air and/or gas supply nozzle is positioned in the end of said tubular body opposite said power supply connection; and (c) an annular discharge chamber is positioned between said tubular body and said metal jacket electrode; (d) whereby said annular discharge chamber serves as a return pipe for the medium treated and emerging from said ozone production pipe.
References Cited (Backward Citations)
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GB1227954A
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DE2150919A1
Cited
US4048668A
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FR2343351A1
Cited
US4156653A
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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) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |