Patent US2620047A successfully refreshed from Google Patents.
US2620047A
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Adsorption process
Assignee: Standard Oil Development Co
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Filing: 1950-09-08
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Granted: 1952-12-02
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Expires: 1970-09-08
Abstract
No abstract record available.
Inventors
- 👤 Robert P Cahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:59
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/06; B01D53/10; B01D53/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN THE SEPARATION COMPONENTS OF A FLUID MIXTURE BY MEANS OF SELECTIVE ADSORPTION EMPLOYING A FINELY DIVIDED MOVING SOLID ADSORBENT OF 50 TO 200 MICRONS PARTICLE SIZE IN WHICH THE FLUID MIXTURE IS CONTACTED COUNTERCURRENTLY WITH THE DOWNWARDLY MOVING SOLID ADSORBENT IN AN ADSORPTION ZONE, THE IMPROVEMENT WHICH COMPRISES MAINTAINING IN AT LEAST PART OF THE ADSORPTION ZONE DURING THE ADSORPTION RELATIVELY LARGER PARTICLES OF SOLID, STATIONARY PACKING AT LEAST ONEQUARTER INCH IN DIAMETER AND HAVING RELATIVELY THE SAME ADSORPTION CHARACTERISTICS AS THE MOVING ADSORBENT.
Claim 2
Dependent Claim
85 words
IN THE SEPARATION COMPONENTS OF A FLUID MIXTURE BY MEANS OF SELECTIVE ADSORPTION EMPLOYING A FINELY DIVIDED MOVING SOLID ADSORBENT OF 50 TO 200 MICRONS PARTICLE SIZE IN WHICH THE FLUID MIXTURE IS CONTACTED COUNTERCURRENTLY WITH THE DOWNWARDLY MOVING SOLID ADSORBENT IN AN ADSORPTION ZONE, THE IMPROVEMENT WHICH COMPRISES MAINTAINING IN AT LEAST PART OF THE ADSORPTION ZONE DURING THE ADSORPTION RELATIVELY LARGER PARTICLES OF SOLID, STATIONARY PACKING AT LEAST ONEQUARTER INCH IN DIAMETER AND HAVING RELATIVELY THE SAME ADSORPTION CHARACTERISTICS AS THE MOVING ADSORBENT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |