US3131232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid-solid contacting process and flow control method therefor
Assignee: Universal Oil Products Co
•
Filing: 1959-07-27
•
Granted: 1964-04-28
•
Expires: 1979-07-27
Abstract
No abstract record available.
Inventors
- 👤 Donald B Broughton
- 👤 Don B Carson
- 👤 Laurence O Stine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:53
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/0407; B01D53/0423; B01D2251/00; B01D2251/20; B01D2251/206; B01D2251/2067; B01D2251/70; B01D2252/00; B01D2252/20; B01D2252/202; B01D2252/2023; B01D2253/00; B01D2253/10; B01D2253/106; B01D2253/108; B01D2253/30; B01D2253/302; B01D2253/308; B01D2255/00; B01D2255/20; B01D2255/207; B01D2255/20738; B01D2256/00; B01D2256/16; B01D2256/18; B01D2256/24; B01D2257/00; B01D2257/70; B01D2257/702; B01D2257/7022; B01D2259/00; B01D2259/40; B01D2259/40003; B01D2259/40005; B01D2259/40083; B01D2259/40086; B01D2259/404; B01D53/0438; B01D53/0454; B01D53/26; B01D53/261; Y; Y10; Y10S; Y10S585/00; Y10S585/919; Y10S585/921; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0396
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN A CONTINUOUS FLUID-SOID CONTACTING PROCESS FOR ALTERING THE COMPOSITION OF A FEED STREAM TO YIELD AT LEAST ONE PRODUCT STREAM WHEREIN A FLUID IS CONTINUOUSLY CIRCULATED THROUGH AN ELONGATED CONTACTING ZONE CONTAINING A SOLID CONTACTING MATERIAL WHICH EFFECTS SAID ALTERATION OF COMPOSITION, ONE END OF WHICH ZONE COMMUNICATES WITH THE OTHER THROUGH A FLOW-REGULATING MEANS TO FORM A CLOSED FLOW PATH THERETHROUGH, SAID ZONE HAVING M INTERMITTENT FLOW-CONDUCTING TRANSFER POINTS SPACED ALONG THE LENGTH OF THE FLOW PATH, AND WHEREIN THERE ARE SUBSTANTIALLY SIMULTANEOUSLY INTRODUCED TO AND WITHDRAWN
Claim 2
Dependent Claim
89 words
IN A CONTINUOUS FLUID-SOID CONTACTING PROCESS FOR ALTERING THE COMPOSITION OF A FEED STREAM TO YIELD AT LEAST ONE PRODUCT STREAM WHEREIN A FLUID IS CONTINUOUSLY CIRCULATED THROUGH AN ELONGATED CONTACTING ZONE CONTAINING A SOLID CONTACTING MATERIAL WHICH EFFECTS SAID ALTERATION OF COMPOSITION, ONE END OF WHICH ZONE COMMUNICATES WITH THE OTHER THROUGH A FLOW-REGULATING MEANS TO FORM A CLOSED FLOW PATH THERETHROUGH, SAID ZONE HAVING M INTERMITTENT FLOW-CONDUCTING TRANSFER POINTS SPACED ALONG THE LENGTH OF THE FLOW PATH, AND WHEREIN THERE ARE SUBSTANTIALLY SIMULTANEOUSLY INTRODUCED TO AND WITHDRAWN
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) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |