US3085757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of comminuting particulate material
Assignee: Consolidation Coal Co
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Filing: 1960-08-19
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Granted: 1963-04-16
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Expires: 1980-08-19
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Regan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:07
CPC Classifications
B; B02; B02C; B02C17/00; B02C17/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
THE METHOD OF PREPARING PARTICULATE COAL CONTAINING A QUANTITY OF PARTICLES THAT REMAIN ON AN 8 MESH TYLER STANDARD SCREEN AND A QUANTITY OF PARTICLES THAT PASS THROUGH A 325 MESH TYLER STANDARD SCREEN FOR TRANSPORTATION BY PIPELINE SO THAT THE PREPARED COAL PRODUCT WILL CONTAIN AN INCREASED AMOUNT OF COAL PARTICLES THAT PASS THROUGH A 325 MESH TYLER STANDARD SCREEN AND ALSO CONTAIN COAL PARTICLES THAT REMAIN ON AN 8 MESH TYLER STANDARD SCREEN, SAID METHOD COMPRISING THE STEPS OF: (1) INTRODUCING SAID PARTICULATE COAL INTO A VESSEL CONTAINING AN INVENTORY OF ATTRITIVE ELEMENTS, SAID VESSEL HAVING A VERTICAL SHAFT WITH A PLURALITY OF ARMS EXTENDING RADIALLY THEREFROM, SAID ATTRITIVE ELEMENTS CONSISTING ESSENTIALLY OF COAL PARTICLES THAT WILL PASS THROUGH A SCREEN HAVING 11/4" OPENINGS BUT WILL BE RETAINED ON A SCREEN HAVING 1/4" OPENINGS, (2) AGITATING SAID ATTRITIVE ELEMENTS AND SAID PARTICULATE COAL WITHIN SAID VESSEL BY ROTATING SAID SHAFT, (3) WITHDRAWING A PREPARED COAL PRODUCT FROM SAID VESSEL THROUGH A SCREEN HAVING 1/4" OPENINGS, AND (4) THEREAFTER INTRODUCING SAID PREPARED COAL PRODUCT INTO A PIPELINE FOR TRANSPORTATION THERETHROUGH.
Claim 2
Independent Claim
181 words
THE METHOD OF PREPARING PARTICULATE COAL CONTAINING A QUANTITY OF PARTICLES THAT REMAIN ON AN 8 MESH TYLER STANDARD SCREEN AND A QUANTITY OF PARTICLES THAT PASS THROUGH A 325 MESH TYLER STANDARD SCREEN FOR TRANSPORTATION BY PIPELINE SO THAT THE PREPARED COAL PRODUCT WILL CONTAIN AN INCREASED AMOUNT OF COAL PARTICLES THAT PASS THROUGH A 325 MESH TYLER STANDARD SCREEN AND ALSO CONTAIN COAL PARTICLES THAT REMAIN ON AN 8 MESH TYLER STANDARD SCREEN, SAID METHOD COMPRISING THE STEPS OF: (1) INTRODUCING SAID PARTICULATE COAL INTO A VESSEL CONTAINING AN INVENTORY OF ATTRITIVE ELEMENTS, SAID VESSEL HAVING A VERTICAL SHAFT WITH A PLURALITY OF ARMS EXTENDING RADIALLY THEREFROM, SAID ATTRITIVE ELEMENTS CONSISTING ESSENTIALLY OF COAL PARTICLES THAT WILL PASS THROUGH A SCREEN HAVING 11/4" OPENINGS BUT WILL BE RETAINED ON A SCREEN HAVING 1/4" OPENINGS, (2) AGITATING SAID ATTRITIVE ELEMENTS AND SAID PARTICULATE COAL WITHIN SAID VESSEL BY ROTATING SAID SHAFT, (3) WITHDRAWING A PREPARED COAL PRODUCT FROM SAID VESSEL THROUGH A SCREEN HAVING 1/4" OPENINGS, AND (4) THEREAFTER INTRODUCING SAID PREPARED COAL PRODUCT INTO A PIPELINE FOR TRANSPORTATION THERETHROUGH.
References Cited (Backward Citations)
US2764359A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |