US2903400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for low temperature distillation of carbonaceous materials
Assignee: Individual
•
Filing: 1955-12-12
•
Granted: 1959-09-08
•
Expires: 1975-12-12
Abstract
No abstract record available.
Inventors
- 👤 Franklin E Poindexter
- 👤 Frank W Lowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:34
CPC Classifications
C; C10; C10B; C10B49/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN AN APPARATUS INCLUDING A CARBONIZER UNIT FOR DISTILLING CARBONACEOUS MATERIAL TO PRODUCE CHAR AND VOLATILES; THE IMPROVEMENT WHICH COMPRISES A FILTER UNIT INCLUDING A CASING HAVING SPACED APART UPPER AND LOWER PORTIONS INTERCONNECTED BY A DUCT PORTION, SAID UPPER PORTION HAVING AN INLET ADAPTED TO RECEIVE CHAR FROM THE CARBONIZER UNIT AND THROUGH WHICH CHAR PASSES INTO SAID DUCT AND LOWER PORTIONS TO PROVIDE A BODY OF CHAR THEREIN, CONVEYING MEANS POSITIONED IN SAID LOWER PORTION FOR REMOVING CHAR THEREFROM AT A PREDETERMINED RATE TO MAINTAIN THE BODY OF CHAR IN SAID DUCT AND LOWER PORTIONS, SECOND CONVEYING MEANS IN SAID UPPER PORTION ADAPTED TO PREVENT FLUCTUATIONS IN CHAR OUTPUT OF THE CARBONIZER FROM FILLING SAID UPPER PORTON WITH CHAR, AND MEANS CONNECTED TO SAID LOWER PORTION FOR DRAWING THE VOLATILES THROUGH THE BODY OF CHAR TO FILTER FOREIGN PARTICLES FROM THE VOLATILES.
Claim 2
Dependent Claim
144 words
IN AN APPARATUS INCLUDING A CARBONIZER UNIT FOR DISTILLING CARBONACEOUS MATERIAL TO PRODUCE CHAR AND VOLATILES; THE IMPROVEMENT WHICH COMPRISES A FILTER UNIT INCLUDING A CASING HAVING SPACED APART UPPER AND LOWER PORTIONS INTERCONNECTED BY A DUCT PORTION, SAID UPPER PORTION HAVING AN INLET ADAPTED TO RECEIVE CHAR FROM THE CARBONIZER UNIT AND THROUGH WHICH CHAR PASSES INTO SAID DUCT AND LOWER PORTIONS TO PROVIDE A BODY OF CHAR THEREIN, CONVEYING MEANS POSITIONED IN SAID LOWER PORTION FOR REMOVING CHAR THEREFROM AT A PREDETERMINED RATE TO MAINTAIN THE BODY OF CHAR IN SAID DUCT AND LOWER PORTIONS, SECOND CONVEYING MEANS IN SAID UPPER PORTION ADAPTED TO PREVENT FLUCTUATIONS IN CHAR OUTPUT OF THE CARBONIZER FROM FILLING SAID UPPER PORTON WITH CHAR, AND MEANS CONNECTED TO SAID LOWER PORTION FOR DRAWING THE VOLATILES THROUGH THE BODY OF CHAR TO FILTER FOREIGN PARTICLES FROM THE VOLATILES.
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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) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |