US2579944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for coating particulate material
Assignee: Colgate Palmolive Co
•
Filing: 1945-04-09
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Granted: 1951-12-25
•
Expires: 1965-04-09
Abstract
No abstract record available.
Inventors
- 👤 Donald E Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:05
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/0039; B; B01; B01J; B01J2/00; B01J2/003; Y; Y10; Y10S; Y10S159/00; Y10S159/03; Y10S159/06; Y10S159/09; Y10S159/14; Y10S159/17; Y10S159/26; Y10S424/00; Y10S424/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
PROCESS FOR TREATING A SOLUTION CONTAINING SOLIDIFIABLE MATERIAL WHICH COMPRISES FLUIDIZING BY MEANS OF A FLUIDIZING GAS FINE SOLID PARTICLES OF SAID MATERIAL, TRANSFERRING SAID PARTICLES TO A CONFINED ZONE, SPRAYING SAID SOLUTION UPON SAID FLUIDIZED PARTICLES IN SAID ZONE TO COAT THE SAME WITH THE SOLUTION, PASSING THE COATED FLUIDIZED PARTICLES UPWARDLY OUT OF SAID ZONE TO AND THROUGH AN ELECTROSTATIC FIELD TO HEAT THE SAME AND DRIVEN OFF VAPOROUS MATERIAL FROM THE PARTICELS, PASSING THE HEATED AND COATED FLUIDIZED PARTICLES TO A SECOND CONFINED ZONE, SPRAYING A SECOND AND DIFFERENT HEATED SOLUTION CONTAINING SOLIFIFIABLE MATERIAL UPON THE FLUIDIZED PARTICLES IN SAID SECOND ZONE TO COAT THE SAME, PASSING SAID PARTICLES FROM THE SECOND ZONE UPWARDLY THROUGH A RADIENT HEAT ZONE TO HEAT THE SAME
Claim 2
Dependent Claim
126 words
PROCESS FOR TREATING A SOLUTION CONTAINING SOLIDIFIABLE MATERIAL WHICH COMPRISES FLUIDIZING BY MEANS OF A FLUIDIZING GAS FINE SOLID PARTICLES OF SAID MATERIAL, TRANSFERRING SAID PARTICLES TO A CONFINED ZONE, SPRAYING SAID SOLUTION UPON SAID FLUIDIZED PARTICLES IN SAID ZONE TO COAT THE SAME WITH THE SOLUTION, PASSING THE COATED FLUIDIZED PARTICLES UPWARDLY OUT OF SAID ZONE TO AND THROUGH AN ELECTROSTATIC FIELD TO HEAT THE SAME AND DRIVEN OFF VAPOROUS MATERIAL FROM THE PARTICELS, PASSING THE HEATED AND COATED FLUIDIZED PARTICLES TO A SECOND CONFINED ZONE, SPRAYING A SECOND AND DIFFERENT HEATED SOLUTION CONTAINING SOLIFIFIABLE MATERIAL UPON THE FLUIDIZED PARTICLES IN SAID SECOND ZONE TO COAT THE SAME, PASSING SAID PARTICLES FROM THE SECOND ZONE UPWARDLY THROUGH A RADIENT HEAT ZONE TO HEAT THE SAME
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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) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |