US3369874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixture separation by cyclic pulsing in a temperature graduated adsorbent bed
Assignee: Research Corp
•
Filing: 1966-02-08
•
Granted: 1968-02-20
•
Expires: 1986-02-08
Abstract
No abstract record available.
Inventors
- 👤 Richard H Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:48
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
THE METHOD OF CONCENTRATING A COMPONENT OF A LIQUID MIXTURE COMPRISING CONTACTING THE LIQUID MIXTURE WITH A LIQUID PERMEABLE STATIONARY COLUMN OF SOLID ADSORBENT, FLOWING THE LIQUID THROUGH THE COLUMN OF ADSORBENT WHILE MAINTAINING A SUBSTANTIAL TEMPERATURE DIFFERENTAIL BETWEEN THE ENDS OF THE COLUMN OF ADSORBENT, AND SIMULATENEOUSLY CYCLICALLY DISPLACING THE LIQUID AS IT FLOWS THROUGH THE COLUMN OF ODSOBRBENT WITH RESPECT TO THE COLUMN OF ADSORBENT AT A FREQUENCY SUCH THAT IT ESTABLISHES A SUBSTANTIAL DEGREE OF HEAT EXCHANGE BETWEEN THE LIQUID AND THE SOLID ADSORBENT IN CONTACT THEREWITH TO ESTABLISH A TEMPERATURE GRADIENT ALONG THE COLUMN, THEREBY ESTABLISHING A CONCENTRATION GRADIENT OF A COMPONENT OF THE LIQUID MIXTURE ALONG THE COLUMN.
Claim 2
Independent Claim
113 words
THE METHOD OF CONCENTRATING A COMPONENT OF A LIQUID MIXTURE COMPRISING CONTACTING THE LIQUID MIXTURE WITH A LIQUID PERMEABLE STATIONARY COLUMN OF SOLID ADSORBENT, FLOWING THE LIQUID THROUGH THE COLUMN OF ADSORBENT WHILE MAINTAINING A SUBSTANTIAL TEMPERATURE DIFFERENTAIL BETWEEN THE ENDS OF THE COLUMN OF ADSORBENT, AND SIMULATENEOUSLY CYCLICALLY DISPLACING THE LIQUID AS IT FLOWS THROUGH THE COLUMN OF ODSOBRBENT WITH RESPECT TO THE COLUMN OF ADSORBENT AT A FREQUENCY SUCH THAT IT ESTABLISHES A SUBSTANTIAL DEGREE OF HEAT EXCHANGE BETWEEN THE LIQUID AND THE SOLID ADSORBENT IN CONTACT THEREWITH TO ESTABLISH A TEMPERATURE GRADIENT ALONG THE COLUMN, THEREBY ESTABLISHING A CONCENTRATION GRADIENT OF A COMPONENT OF THE LIQUID MIXTURE ALONG THE COLUMN.
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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) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |