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US2813823A Expired / Lapsed US ⏱️ 0.0 years remaining

Destructive distillation of hydrocarbonaceous materials

Assignee: Individual
•
Filing: 1956-09-19
•
Granted: 1957-11-19
•
Expires: 1976-09-19
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Abstract

No abstract record available.

Inventors

  • 👤 Maurice W Putman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 13:46
CPC Classifications
C; C10; C10G; C10G1/00; C10G1/02; Y; Y10; Y10S; Y10S159/00; Y10S159/03; Y10S159/29

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 216 words
A METHOD FOR THE DISTILLATION OF OIL SHALEOF OIL SHALE FOR THE PRODUCTION OF USEFUL LIQUID PRODUCTS WHICH INVOLVES THE STEPS OF CONTINUOUSLY PASSING THE SHALE AS A BED OF BROKEN SOLIDS DOWNWARDLY IN A SUBSTANTIALLY VERTICAL COLUMN SUCCESSIVELY THROUGH A PREHEATING ZONE AND A DISTILLATION ZONE, CONTINOUSLY PASSING A STREAM OF NONCONDENSABLE GASES CONTAINING ARTIFICIALLY INDUCED CONDENSATION NUCLEI SELECTED FROM THE CLASS CONSISTING OF SODIUM CHLORIDE, POTASSIUM CHLORIDE AND CALCIUM CHLORIDE UPWARDLYY THROUGH SAID DISTILLATION ZONE AT A TEMPERATURE SUFFICIENT TO EFFECT THERMAL DECOMPOSITION OF SAID OIL SHALE, THEREBY PRODUCING CONDENSABLE PRODUCT VAPORS WHICH ARE CARRIEDD UPWARDLY IN SAID GAS STREAM CONTAINING ARTIFICIALLY INDUCED CONDENSATION NUCLEI, PERMITTING SAID VAPOR-CONTAINING GAS STREAM TO PASS UPWARDLY THROUGH SAID PREHEATING ZONE, WHEREBY THE DESCENDING SHALE BECOMES PROGRESSIVELY HEATED, WITHDRAWING SAID GAS STREAM FROM SAID COLUMN AT A TEMPERATURE SUFFICIENTLY LOW SO THAT SUBSTANTIALLY THE ENTIRE VAPOR CONTENT OF SAID GAS STREAM CONTAINING ARTIFICIALLY INDUCED CONDENSATION NUCLEI UNDERGOES CONDENSATION WITHIN SAID COLUMN, WHEREBY THE MAJOR PORTION OF THE VAPORS CONDENSE ON THE ARTIFICIALLY INDUCED NUCLEI ASS A RELATIVELY STABLE MIST AND A MINIMUM AMOUNT OF CONDENSATION OCCURS ON THE SURFACE OF SAID SHALE, WITHDRAW-EAWING SAID RELATIVELY STABLE MIST AND ACCOMPANYING GAS STREAM FROM THE COLUMN, AND SEPARATING THE SHALE-OIL MIST, INCLUDING THE ARTIFICIALLY INDUCED NUCLEI, FROM THE ACCOMPANYING GASES.
Claim 2
Independent Claim 216 words
A METHOD FOR THE DISTILLATION OF OIL SHALEOF OIL SHALE FOR THE PRODUCTION OF USEFUL LIQUID PRODUCTS WHICH INVOLVES THE STEPS OF CONTINUOUSLY PASSING THE SHALE AS A BED OF BROKEN SOLIDS DOWNWARDLY IN A SUBSTANTIALLY VERTICAL COLUMN SUCCESSIVELY THROUGH A PREHEATING ZONE AND A DISTILLATION ZONE, CONTINOUSLY PASSING A STREAM OF NONCONDENSABLE GASES CONTAINING ARTIFICIALLY INDUCED CONDENSATION NUCLEI SELECTED FROM THE CLASS CONSISTING OF SODIUM CHLORIDE, POTASSIUM CHLORIDE AND CALCIUM CHLORIDE UPWARDLYY THROUGH SAID DISTILLATION ZONE AT A TEMPERATURE SUFFICIENT TO EFFECT THERMAL DECOMPOSITION OF SAID OIL SHALE, THEREBY PRODUCING CONDENSABLE PRODUCT VAPORS WHICH ARE CARRIEDD UPWARDLY IN SAID GAS STREAM CONTAINING ARTIFICIALLY INDUCED CONDENSATION NUCLEI, PERMITTING SAID VAPOR-CONTAINING GAS STREAM TO PASS UPWARDLY THROUGH SAID PREHEATING ZONE, WHEREBY THE DESCENDING SHALE BECOMES PROGRESSIVELY HEATED, WITHDRAWING SAID GAS STREAM FROM SAID COLUMN AT A TEMPERATURE SUFFICIENTLY LOW SO THAT SUBSTANTIALLY THE ENTIRE VAPOR CONTENT OF SAID GAS STREAM CONTAINING ARTIFICIALLY INDUCED CONDENSATION NUCLEI UNDERGOES CONDENSATION WITHIN SAID COLUMN, WHEREBY THE MAJOR PORTION OF THE VAPORS CONDENSE ON THE ARTIFICIALLY INDUCED NUCLEI ASS A RELATIVELY STABLE MIST AND A MINIMUM AMOUNT OF CONDENSATION OCCURS ON THE SURFACE OF SAID SHALE, WITHDRAW-EAWING SAID RELATIVELY STABLE MIST AND ACCOMPANYING GAS STREAM FROM THE COLUMN, AND SEPARATING THE SHALE-OIL MIST, INCLUDING THE ARTIFICIALLY INDUCED NUCLEI, FROM THE ACCOMPANYING GASES.

References Cited (Backward Citations)

US1617697A Cited
US2757129A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1960-11-18 1961-05-20 1961-11-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1964-11-18 1965-05-20 1965-11-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1968-11-18 1969-05-20 1969-11-19 $7700.00 Window Closed / Lapsed

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