US2702269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coking or cracking of oils, pitches, and the like
Assignee: Rain Carbon Germany GmbH
•
Filing: 1950-10-27
•
Granted: 1955-02-15
•
Expires: 1970-10-27
Abstract
No abstract record available.
Inventors
- 👤 Geller Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:15
CPC Classifications
C; C10; C10B; C10B55/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A DEVICE FOR COKING AND CRACKING OILS, PITCHES AND THE LIKE, COMPRISING IN COMBINATION A VERTICAL, CYLINDRICAL HEATING CHAMBER; AT LEAST ONE CONDUIT FOR THE INTRODUCTION INTO THE MIDDLE ZONE OF SAID CHAMBER, OF THE MATERIAL TO BE TREATED; SAID HEATING CHAMBER HAVING A DOWNWARDLY TAPERING LOWER END PART FORMING AN OPENING FOR THE DISCHARGE OF RESIDUAL PRODUCTS AND BEING PROVIDED AT ITS UPPER END PART WITH A TUBULAR OUTLET FOR THE DISCHARGE OF VOLATILC PRODUCTS FORMED IN THE HEATING CHAMBER; A CYLINDRICAL CASING PROVIDED WITH A THERMALLY INSULATING LAYER ON ITS INNER SIDE AND SURROUNDING THE WALL OF THE HEATING CHAMBER TO FORM A NARROW ANNULAR GAP THEREWITH THE UPPER END PART OF SAID CASING SURROUNDING THE TUBULAR OUTLET OF THE HEATING CHAMBER AND FORMING THEREWITH AN ANNULAR COLLECTING CHANNEL FOR HEATING GASES, SAID CHANNEL HAVING A DISCHARGE OPENING FOR USED HEATING GASES, THE BOTTOM WALL OF THE CHANNEL BEING FORMED BY PERFORATED ELEMENTS ARRANGED ABOVE SAID ANNULAR GAP; THE WALL OF THE HEATING CHAMBER EXTENDING DOWNWARD AROUND ITS TAPERING END PORTION AND FORMING AN ANNULAR SECOND CHANNEL WITH THE LATTER; SAID SECOND CHANNEL BEING PROVIDED WITH AT LEAST ONE OPENING FOR BURNERS SUPPLYING HEATING GASES; SAID SECOND ANNULAR CHANNEL BEING CON-
Claim 2
Independent Claim
203 words
A DEVICE FOR COKING AND CRACKING OILS, PITCHES AND THE LIKE, COMPRISING IN COMBINATION A VERTICAL, CYLINDRICAL HEATING CHAMBER; AT LEAST ONE CONDUIT FOR THE INTRODUCTION INTO THE MIDDLE ZONE OF SAID CHAMBER, OF THE MATERIAL TO BE TREATED; SAID HEATING CHAMBER HAVING A DOWNWARDLY TAPERING LOWER END PART FORMING AN OPENING FOR THE DISCHARGE OF RESIDUAL PRODUCTS AND BEING PROVIDED AT ITS UPPER END PART WITH A TUBULAR OUTLET FOR THE DISCHARGE OF VOLATILC PRODUCTS FORMED IN THE HEATING CHAMBER; A CYLINDRICAL CASING PROVIDED WITH A THERMALLY INSULATING LAYER ON ITS INNER SIDE AND SURROUNDING THE WALL OF THE HEATING CHAMBER TO FORM A NARROW ANNULAR GAP THEREWITH THE UPPER END PART OF SAID CASING SURROUNDING THE TUBULAR OUTLET OF THE HEATING CHAMBER AND FORMING THEREWITH AN ANNULAR COLLECTING CHANNEL FOR HEATING GASES, SAID CHANNEL HAVING A DISCHARGE OPENING FOR USED HEATING GASES, THE BOTTOM WALL OF THE CHANNEL BEING FORMED BY PERFORATED ELEMENTS ARRANGED ABOVE SAID ANNULAR GAP; THE WALL OF THE HEATING CHAMBER EXTENDING DOWNWARD AROUND ITS TAPERING END PORTION AND FORMING AN ANNULAR SECOND CHANNEL WITH THE LATTER; SAID SECOND CHANNEL BEING PROVIDED WITH AT LEAST ONE OPENING FOR BURNERS SUPPLYING HEATING GASES; SAID SECOND ANNULAR CHANNEL BEING CON-
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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) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |