US3907981A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for recombining hydrogen and oxygen
Assignee: Boeing North American Inc
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Filing: 1973-03-12
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Granted: 1975-09-23
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Expires: 1993-03-12
Abstract
Abstract A method and apparatus for thermally recombining hydrogen and oxygen comprising a heating chamber in which the gases to be combined are initially heated to a temperature above the threshold for thermal combination or recombination, a reaction chamber into which the heated gases are transferred from said heating chamber to complete the reaction and which is formed to mix previously reacted gases with the gases delivered from said heating chamber, and temperature control means responsive to the temperature in said reaction chamber for controlling the power to the said heating chamber.
Inventors
- 👤 James O Henrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:36
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01J; B01J12/00; B01J12/005; C; C01; C01B; C01B5/00; Y; Y10; Y10T; Y10T436/00; Y10T436/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
178 words
A CONTINUOUS METHOD OF THERMALLY RECOMBINING OXYGEN AND HYDROGEN COMPRISING THE STEPS OF A. PASSING A STREAM OF GAS CONTAINING FREE OXYGEN AND HYDROGEN THROUGH A FIRST CHAMBER, B. INITIALLY HEATING THE GAS IN THE FIRST CHAMBER TO A TEMPERA-TURE ABOVE THE THRESHOLD TEMPERATURE FOR THERMAL RECOMBINATION TO INITIATE A THERMAL RECOMBINATION REACTION, C. TRANSFERRING THE GAS FROM THE FIRST CHAMBER INTO A SECOND CHAMBER AND REDIRECTING THE GAS IN A DIERCTION COUNTERCURRENT TO THE GASES COMING INTO THE SECOND CHAMBER, D. EXHAUSTING SOME OF THE REDIRECTED GASES FROM THE SECOND CHAMBER, E. MIXING THE REMAINDER REDIRECTED GASES WITH THE GASES BEING TRANSFERRED FROM THE FIRST CHAMBER INTO THE SECOND CHAMBER TO HEAT THE TRANSFERRED GASES, F. PROVIDING A TEMPERATURE SENSING MEANS IN THE SECOND CHAMBER FOR SENSING THE TEMPERATURE THEREIN, AND G. SUBSTANTIALLY MAINTAINING A DESIRED TEMPERATURE IN THE SECOND CHAMBER SUCH THAT SUBSTANTIALLY ALL OF THE RECOMBINATION REACTION TAKES PLACE IN THE SECOND CHAMBER, SAID DESIRED TEMPERATURE BEING MAINTAINED BY CONTROLLING THE TEMPERATURE IN STEP (B) IN RESPONSE TO THE TEMPERATURE SENSED IN THE SECOND CHAMBER.
Claim 2
Dependent Claim
178 words
A CONTINUOUS METHOD OF THERMALLY RECOMBINING OXYGEN AND HYDROGEN COMPRISING THE STEPS OF A. PASSING A STREAM OF GAS CONTAINING FREE OXYGEN AND HYDROGEN THROUGH A FIRST CHAMBER, B. INITIALLY HEATING THE GAS IN THE FIRST CHAMBER TO A TEMPERA-TURE ABOVE THE THRESHOLD TEMPERATURE FOR THERMAL RECOMBINATION TO INITIATE A THERMAL RECOMBINATION REACTION, C. TRANSFERRING THE GAS FROM THE FIRST CHAMBER INTO A SECOND CHAMBER AND REDIRECTING THE GAS IN A DIERCTION COUNTERCURRENT TO THE GASES COMING INTO THE SECOND CHAMBER, D. EXHAUSTING SOME OF THE REDIRECTED GASES FROM THE SECOND CHAMBER, E. MIXING THE REMAINDER REDIRECTED GASES WITH THE GASES BEING TRANSFERRED FROM THE FIRST CHAMBER INTO THE SECOND CHAMBER TO HEAT THE TRANSFERRED GASES, F. PROVIDING A TEMPERATURE SENSING MEANS IN THE SECOND CHAMBER FOR SENSING THE TEMPERATURE THEREIN, AND G. SUBSTANTIALLY MAINTAINING A DESIRED TEMPERATURE IN THE SECOND CHAMBER SUCH THAT SUBSTANTIALLY ALL OF THE RECOMBINATION REACTION TAKES PLACE IN THE SECOND CHAMBER, SAID DESIRED TEMPERATURE BEING MAINTAINED BY CONTROLLING THE TEMPERATURE IN STEP (B) IN RESPONSE TO THE TEMPERATURE SENSED IN THE SECOND CHAMBER.
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein in step (b) the gas initially is heated to a temperature above 1,200*F.
Claim 4
Dependent Claim
15 words
The method of claim 1 wherein in step (g) the desired temperature is below 1,500*F.
Claim 5
Dependent Claim
16 words
The method of claim 1 wherein in step (g) the desired temperature is from 1,300*to 1,400*F.
Claim 6
Dependent Claim
19 words
The method of claim 4 wherein in step (b) the gas initially is heated to a temperature above 1,200*F.
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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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |