US3376468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for heating gases to high temperatures
Assignee: Northern Natural Gas Co
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Filing: 1965-10-11
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Granted: 1968-04-02
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Expires: 1985-10-11
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Hirt
- 👤 Chester W Marynowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/32
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
141 words
APPARATUS FOR HEATING GASES TO HIGH TEMPERATURES COMPRISING, (A) MEANS FOR CREATING AN ELECTRIC ARC, (B) MEANS FOR SUPPLYING A GAS STREAM TO SAID ARC TO BE HEATED THEREBY TO FORM A PREIONIZING ZONE OF HIGH TEMPERATURE, (C) MEANS FOR INTRODUCING IONIZING ADDITIVES TO SAID GAS STREAM IN ADVANCE OF SAID ARC TO BE IONIZED BY HEAT FROM SAID ARC, (D) AN ORIFICE FOR THE FLOW OF HEATED GAS CONTAINING IONIZED ADDITIVES FROM SAID ZONE OF HIGH TEMPERATURE IN THE FRONT OF A JET, (E) A CHAMBER DOWNSTREAM OF SAID ORIFICE INTO WHICH SAID JET IS DISCHARGED TO CREATE A HIGH DEGREE OF TURBULENCE IN THE CHAMBER, (F) MEANS SPACED FROM THE JET FOR INTRODUCING A GAS TO BE HEATED INTO PORTIONS OF SAID CHAMBER, (G) MEANS FOR MAINTAINING A UNIFORMITY DISTRIBUTED ELECTRICAL DISCHARGE THROUGH THE GASES WITHIN SAID CHAMBER, AND
References Cited (Backward Citations)
US3201635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |