US3026568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing coated bitumen pellets
Assignee: Schuller Services Ltd
•
Filing: 1958-11-14
•
Granted: 1962-03-27
•
Expires: 1978-11-14
Abstract
No abstract record available.
Inventors
- 👤 Moar Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:04
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1013; E01C19/1022; B; B01; B01J; B01J2/00; B01J2/02; B01J2/04; C; C08; C08L; C08L95/00; C08L2555/00; C08L2555/20; C08L2555/22; C08L2555/40; C08L2555/50; C08L2555/52; Y; Y10; Y10S; Y10S425/00; Y10S425/101; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
IN THE PRODUCTION OF COATED BITUMEN PELLETS, THE METHOD COMPRISING THE STEPS OF (A) SPRAYING MOLTEN BITUMEN DOWNWARDLY INTO AN UPWARDLY DIRECTED STREAM OF AIR CARRYING A POWDERED COATING MATERIAL TO ATOMIZE THE BITUMEN INTO FINE PETTELTS, INITIALLY COAT, AND PARTIALLY COOL THE SAME TO A SEMI-MOLTEN STATE; AND (B) PASSING SAID INITIALLY COATED PELLETS THROUGH A SECOND ZONE OF SWIRLING AIR CARRYING THE COATING MATERIAL WHEREBY THE SEMI-MOLTEN PELLETS ACQUIRE ADDITIONAL COATING.
Claim 2
Dependent Claim
73 words
IN THE PRODUCTION OF COATED BITUMEN PELLETS, THE METHOD COMPRISING THE STEPS OF (A) SPRAYING MOLTEN BITUMEN DOWNWARDLY INTO AN UPWARDLY DIRECTED STREAM OF AIR CARRYING A POWDERED COATING MATERIAL TO ATOMIZE THE BITUMEN INTO FINE PETTELTS, INITIALLY COAT, AND PARTIALLY COOL THE SAME TO A SEMI-MOLTEN STATE; AND (B) PASSING SAID INITIALLY COATED PELLETS THROUGH A SECOND ZONE OF SWIRLING AIR CARRYING THE COATING MATERIAL WHEREBY THE SEMI-MOLTEN PELLETS ACQUIRE ADDITIONAL COATING.
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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) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |