US3178488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of unsaturates by the nonuniform mixing of paraffin hydrocarbons with hot combustion gases
Assignee: Eastman Kodak Co
•
Filing: 1960-09-21
•
Granted: 1965-04-13
•
Expires: 1980-09-21
Abstract
No abstract record available.
Inventors
- 👤 George A Akin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:48
CPC Classifications
C; C07; C07C; C07C4/00; C07C4/02; C07C4/04; C10; C10G; C10G2400/00; C10G2400/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A FLAME CRACKING PROCESS FOR THE SIMULTANEOUS PRODUCTION OF SUBSTANTIAL YIELDS OF ACETYLENE, ETHYLENE AND PROPYLENE BY THE NON-UNIFORM MIXING, IN AN ELONGATED CRACKING ZONE, OF A GASEOUS HYDROCARBON FEED STREAM CONTAINING A PARAFFIN OF AT LEAST 3 CARBON ATOMS PER MOLECULE WITH HOT COMBUSTION GASES FORMED BY BURNING A HYDROCARBON FUEL WHICH COMPRISES: (A) DIRECTING SAID HOT COMBUSTION GASES INTO SAID ELONGATED CRACKING ZONE AT A LINEAR VELOCITY OF ABOUT 500 TO ABOUT 1500 FEET PER SECOND; (B) INTRODUCING SAID GASEOUS HYDROCARBON FEED STREAM, AT A LINEAR VELOCITY OF ABOUT 50 TO ABOUT 250 FEET PER SECOND, INTO SAID ELONGATED CRACKING ZONE; (C) QUENCHING THE EFFLUENT FROM SAID ELONGATED CRACKING ZONE, SAID EFFLUENT HAVING A TEMPERATURE OF ABOUT 800*C. TO ABOUT
Claim 2
Dependent Claim
122 words
A FLAME CRACKING PROCESS FOR THE SIMULTANEOUS PRODUCTION OF SUBSTANTIAL YIELDS OF ACETYLENE, ETHYLENE AND PROPYLENE BY THE NON-UNIFORM MIXING, IN AN ELONGATED CRACKING ZONE, OF A GASEOUS HYDROCARBON FEED STREAM CONTAINING A PARAFFIN OF AT LEAST 3 CARBON ATOMS PER MOLECULE WITH HOT COMBUSTION GASES FORMED BY BURNING A HYDROCARBON FUEL WHICH COMPRISES: (A) DIRECTING SAID HOT COMBUSTION GASES INTO SAID ELONGATED CRACKING ZONE AT A LINEAR VELOCITY OF ABOUT 500 TO ABOUT 1500 FEET PER SECOND; (B) INTRODUCING SAID GASEOUS HYDROCARBON FEED STREAM, AT A LINEAR VELOCITY OF ABOUT 50 TO ABOUT 250 FEET PER SECOND, INTO SAID ELONGATED CRACKING ZONE; (C) QUENCHING THE EFFLUENT FROM SAID ELONGATED CRACKING ZONE, SAID EFFLUENT HAVING A TEMPERATURE OF ABOUT 800*C. TO ABOUT
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-12 | 1968-10-12 | 1969-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-12 | 1972-10-12 | 1973-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-12 | 1976-10-12 | 1977-04-13 | $7700.00 | Window Closed / Lapsed |