US2765872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the recovery of hydrocarbon vapors
Assignee: California Research LLC
•
Filing: 1955-01-31
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Granted: 1956-10-09
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Expires: 1975-01-31
Abstract
No abstract record available.
Inventors
- 👤 Robert F Hartman
- 👤 Edward H Lynch
- 👤 Laverne P Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:35
CPC Classifications
C; C10; C10G; C10G5/00; C10G5/04; B; B01; B01D; B01D2259/00; B01D2259/45; B01D2259/4516; C10G2300/00; C10G2300/10; C10G2300/1025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A METHOD OF RECOVERING LIGHT HYDROCARBON VAPORS FROM A VESSEL CONTAINING SAID VAPORS IN ADMIXTURE WITH AIR, WHICH COMPRISES RECOVERING THE AIR-VAPOR MIXTURE FROM SAID VESSEL; SUBSTANTIALLY SATURATING SAID MIXTURE IN RESPECT TO ITS HYDROCARBON CONTENT BY CONTACTING SAID MIXTURE IN A SATURATION ZONE WITH A LIQUID STREAM OF NORMALLY LIQUID HYDROCARBONS; COMPRESSING THE RESULTING SATURATED MIXTUTE TO A PRESSURE IN THE RANGE OF FROM ABOUT 50 TO 1000 P.S.I.G.; CONTACTING THE RESULTING COMPRESSED MIXTURE IN ACONTACTING ZONE WITH A LIQUID STREAM OF NORMALLY LIQUID HYDROCARBONS; AND RECOVERING FORM SAID CONTACTING ZONE AN OVERHEAD GASEOUSS PHASE WHICH IS RELATIVELY FREE OF HYDROCARBON VAPORS AND CAN BE VENTED WITHOUR APPRECIABLE CONTAMINATION TO THE ATMOSPHERE, AND, AS BOTTOMS FORM SAID CONTACTING ZONE, THE LIQUID HYDROCARBON STREAM INTRODUCED THEREIN AS ENRICHED WITH HYDROCARBONS FROM THE COMPRESSED MIXTURE.
Claim 2
Independent Claim
134 words
A METHOD OF RECOVERING LIGHT HYDROCARBON VAPORS FROM A VESSEL CONTAINING SAID VAPORS IN ADMIXTURE WITH AIR, WHICH COMPRISES RECOVERING THE AIR-VAPOR MIXTURE FROM SAID VESSEL; SUBSTANTIALLY SATURATING SAID MIXTURE IN RESPECT TO ITS HYDROCARBON CONTENT BY CONTACTING SAID MIXTURE IN A SATURATION ZONE WITH A LIQUID STREAM OF NORMALLY LIQUID HYDROCARBONS; COMPRESSING THE RESULTING SATURATED MIXTUTE TO A PRESSURE IN THE RANGE OF FROM ABOUT 50 TO 1000 P.S.I.G.; CONTACTING THE RESULTING COMPRESSED MIXTURE IN ACONTACTING ZONE WITH A LIQUID STREAM OF NORMALLY LIQUID HYDROCARBONS; AND RECOVERING FORM SAID CONTACTING ZONE AN OVERHEAD GASEOUSS PHASE WHICH IS RELATIVELY FREE OF HYDROCARBON VAPORS AND CAN BE VENTED WITHOUR APPRECIABLE CONTAMINATION TO THE ATMOSPHERE, AND, AS BOTTOMS FORM SAID CONTACTING ZONE, THE LIQUID HYDROCARBON STREAM INTRODUCED THEREIN AS ENRICHED WITH HYDROCARBONS FROM THE COMPRESSED MIXTURE.
References Cited (Backward Citations)
US2252687A
Cited
US2689625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |