US2954415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of carrying out chemical reactions in the gaseous phase at high temperature by interaction with freely falling contact bodies present in the gaseous phase
Assignee: Individual
•
Filing: 1954-12-28
•
Granted: 1960-09-27
•
Expires: 1974-12-28
Abstract
No abstract record available.
Inventors
- 👤 Topsoe Haldor Frederik Axel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:35
CPC Classifications
F; F28; F28C; F28C3/00; F28C3/10; F28C3/12; F28C3/14; B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; C; C10; C10G; C10G11/00; C10G11/14; C10G9/00; C10G9/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A METHOD OF PRODUCING ACETYLENE FROM METHANE CONTAINING NATURAL GAS COMPRISING PRODUCING A DEFINED STREAM OF FREELY FALLING CARBORUNDUM BODIES FREE FROM SUPPORT BY, AND SUBSTANTIAL MECHANICAL INTERACTION WITH, EACH OTHER AND OTHER SOLID BODIES, SAID STREAM MOVING UNINTERRUPTEDLY ALONG A VERTICAL PATH MADE UP OF SUCCESSIVE ZONES CONSISTING OF A HEATING ZONE, AND INTERMEDIATE BLOCKING ZONE, A REACTION ZONE AND A FINAL BLOCKING ZONE DURING THE FREE FALL OF SAID BODIES, ADMITTING HEATING GAS TO SAID STREAM AT THE LOWER END OF SAID HEATING ZONE TO HEAT SAID BODIES, DURING THE FREE FALL OF THE LATTER THROUGH SAID HEATING ZONE, TO A TEMPERATURE OF APPROXIMATELY 1700*C., REMOVING THE PRODUCTS OF THE HEATING GAS FROM SAID STREAM AT THE UPPER END OF SAID HEATING ZONE, ADMITTING METHANE CONTAINING NATURAL GAS TO SAID STREAM AT THE LOWER END OF SAID REACTION ZONE, ADMITTING WATER VAPOR TO SAID INTERMEDIATE BLOCKING ZONE AT THE UPPER END OF THE LATTER, AND REMOVING THE PRODUCTS OF THE
Claim 2
Independent Claim
162 words
A METHOD OF PRODUCING ACETYLENE FROM METHANE CONTAINING NATURAL GAS COMPRISING PRODUCING A DEFINED STREAM OF FREELY FALLING CARBORUNDUM BODIES FREE FROM SUPPORT BY, AND SUBSTANTIAL MECHANICAL INTERACTION WITH, EACH OTHER AND OTHER SOLID BODIES, SAID STREAM MOVING UNINTERRUPTEDLY ALONG A VERTICAL PATH MADE UP OF SUCCESSIVE ZONES CONSISTING OF A HEATING ZONE, AND INTERMEDIATE BLOCKING ZONE, A REACTION ZONE AND A FINAL BLOCKING ZONE DURING THE FREE FALL OF SAID BODIES, ADMITTING HEATING GAS TO SAID STREAM AT THE LOWER END OF SAID HEATING ZONE TO HEAT SAID BODIES, DURING THE FREE FALL OF THE LATTER THROUGH SAID HEATING ZONE, TO A TEMPERATURE OF APPROXIMATELY 1700*C., REMOVING THE PRODUCTS OF THE HEATING GAS FROM SAID STREAM AT THE UPPER END OF SAID HEATING ZONE, ADMITTING METHANE CONTAINING NATURAL GAS TO SAID STREAM AT THE LOWER END OF SAID REACTION ZONE, ADMITTING WATER VAPOR TO SAID INTERMEDIATE BLOCKING ZONE AT THE UPPER END OF THE LATTER, AND REMOVING THE PRODUCTS OF THE
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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) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |