US2787335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of acetylene components from gas
Assignee: Beazer East Inc
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Filing: 1955-09-13
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Granted: 1957-04-02
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Expires: 1975-09-13
Abstract
No abstract record available.
Inventors
- 👤 Robert L Irvine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:59
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A PROCESS FOR REMOVING AN ACETYLENE COMPONENT FROM A GASEOUS STREAM WITH A VOLAATILE SOLVENT, SAID SOLVENT HAVING A GREATER AFFINITY FOR ACETYLENE, WHICH COMPRISES CONTACTING SAID GASEOUS FEED STREAM UNDER PRESSURE WITH SAID VOLATILE SOLVENT TO FORM A SOLVENT PHASE CONTAINING AN EXTRACT RICHER IN ACETYLENE THAN THE GASEOUS FEED STREAM AND OFF-GAS STREAM RICHER IN REMAINING GASES THAN THE GASEOUS FEED STREAM; REDUCING THE PRESSURE ON THE OFF-GAS STREAM TO COOL SAID STREAM BY EXPANSION THEREBY LIQUEFYING VOLATILE SOLVENT THEREIN, THE ACETYLENE EXTRACTION PRESSURE AND THE ESPANDED OFF-GAS PRESSURE BEING CONTROLLED SO THAT THE EXPANSION RATIO IS SUCH THAT A TEMPERATURE IS PRODUCED SUFFICIENTLY LOW TO RESULT IN
Claim 2
Dependent Claim
110 words
A PROCESS FOR REMOVING AN ACETYLENE COMPONENT FROM A GASEOUS STREAM WITH A VOLAATILE SOLVENT, SAID SOLVENT HAVING A GREATER AFFINITY FOR ACETYLENE, WHICH COMPRISES CONTACTING SAID GASEOUS FEED STREAM UNDER PRESSURE WITH SAID VOLATILE SOLVENT TO FORM A SOLVENT PHASE CONTAINING AN EXTRACT RICHER IN ACETYLENE THAN THE GASEOUS FEED STREAM AND OFF-GAS STREAM RICHER IN REMAINING GASES THAN THE GASEOUS FEED STREAM; REDUCING THE PRESSURE ON THE OFF-GAS STREAM TO COOL SAID STREAM BY EXPANSION THEREBY LIQUEFYING VOLATILE SOLVENT THEREIN, THE ACETYLENE EXTRACTION PRESSURE AND THE ESPANDED OFF-GAS PRESSURE BEING CONTROLLED SO THAT THE EXPANSION RATIO IS SUCH THAT A TEMPERATURE IS PRODUCED SUFFICIENTLY LOW TO RESULT IN
References Cited (Backward Citations)
US1900655A
Cited
US2241717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |