US3089250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recovering a volatile organic solvent from an absorbent with steam
Assignee: Research Development Co
•
Filing: 1959-08-17
•
Granted: 1963-05-14
•
Expires: 1979-08-17
Abstract
No abstract record available.
Inventors
- 👤 Victor Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:39
CPC Classifications
D; D06; D06M; D06M23/00; D06M23/10; C; C01; C01B; C01B32/00; C01B32/30; C01B32/354; C01B32/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A METHOD OF REMOVING A VOLATILE ORGANIC SOLVENT FROM AN ADSORBENT WITH STRIPPING STEAM, COMPRISING THE STEPS OF SUPPORTING SAID ADSORBENT ON A PERFORATE SURFACE WITHIN A CONTAINER, HEATING A SURFACE BELOW THE PERFORATE SURFACE WITHIN SAID CONTAINER TO A TEMPERATURE ABOVE THE BOILING POINT OF WATER UNDER THE PRESSURE EXISTING WITHIN SAID CONTAINER, AND ADMITTING STRIPPING STEAM INTO THE CONTAINER AND IN CONTACT WITH THE ADSORBENT TO STRIP THE VOLATILE SOLVENT THEREFROM, SAID HEATED SURFACE ACTING TO REVOLATILIZE CONDENSATE FORMED BY THE STEAMING OPERATION AND ACTING TO MAINTAIN THE AREA WITHIN THE CONTAINER BENEATH THE PERFORATE SURFACE IN A LIQUID-FREE CONDITION.
Claim 2
Independent Claim
102 words
A METHOD OF REMOVING A VOLATILE ORGANIC SOLVENT FROM AN ADSORBENT WITH STRIPPING STEAM, COMPRISING THE STEPS OF SUPPORTING SAID ADSORBENT ON A PERFORATE SURFACE WITHIN A CONTAINER, HEATING A SURFACE BELOW THE PERFORATE SURFACE WITHIN SAID CONTAINER TO A TEMPERATURE ABOVE THE BOILING POINT OF WATER UNDER THE PRESSURE EXISTING WITHIN SAID CONTAINER, AND ADMITTING STRIPPING STEAM INTO THE CONTAINER AND IN CONTACT WITH THE ADSORBENT TO STRIP THE VOLATILE SOLVENT THEREFROM, SAID HEATED SURFACE ACTING TO REVOLATILIZE CONDENSATE FORMED BY THE STEAMING OPERATION AND ACTING TO MAINTAIN THE AREA WITHIN THE CONTAINER BENEATH THE PERFORATE SURFACE IN A LIQUID-FREE CONDITION.
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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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |