US2511901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agglomeration of carbon black
Assignee: —
•
Filing: —
•
Granted: 1950-06-20
•
Expires: 1967-06-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:03
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/56; C09C1/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A CONTINUOUS PROCESS FOR PELLETING CARBON BLACK WHICH COMPRISES CONTACTING SMALL GLOBULES OF LATEX WITH DRY FLOCULENT CARBON BLACK ON AN EXTENDED INCLINED MOVING SURFACE OF DRY FLOCCULENT CARBON BLACK TO PRODUCE AGGLOMERATES OF LATEX AND CARBON BLACK, SAID INCLINED MOVING SURFACE MAKING AN ANGLE OF APPROXIMATELY 40* WITH THE HORIZONTAL AND MOVING IN A GENERALLY DOWNWARD DIRECTION AT SAID ANGLE, ADDING FURTHER DRY FLOCCULENT CARBON BLACK TO THE SURFACE OF SAID AGGLOMERATES BY ROLLING SAID AGGLOMERATES DOWN SAID INCLINED SURFACE IN THE DIRECTION OF MOVEMENT OF SAID INCLINED SUFACE, SEPARATING AGGLOMERATES FROM UNAGGLOMERATED CARBON BLACK, RECYCLING THE UNAGGLOMERATED CARBON BLACK INTO THE FIRST MENTIONED DRY FLOCCULENT CARBON BLACK DRYING THE SEPARATED AGGLOMERATES TO A DESIRED MOISTURE CONTENT AND REMOVING DRIED AGGLOMERATES AS THE PRODUCT OF THE PROCESS.
Claim 2
Dependent Claim
128 words
A CONTINUOUS PROCESS FOR PELLETING CARBON BLACK WHICH COMPRISES CONTACTING SMALL GLOBULES OF LATEX WITH DRY FLOCULENT CARBON BLACK ON AN EXTENDED INCLINED MOVING SURFACE OF DRY FLOCCULENT CARBON BLACK TO PRODUCE AGGLOMERATES OF LATEX AND CARBON BLACK, SAID INCLINED MOVING SURFACE MAKING AN ANGLE OF APPROXIMATELY 40* WITH THE HORIZONTAL AND MOVING IN A GENERALLY DOWNWARD DIRECTION AT SAID ANGLE, ADDING FURTHER DRY FLOCCULENT CARBON BLACK TO THE SURFACE OF SAID AGGLOMERATES BY ROLLING SAID AGGLOMERATES DOWN SAID INCLINED SURFACE IN THE DIRECTION OF MOVEMENT OF SAID INCLINED SUFACE, SEPARATING AGGLOMERATES FROM UNAGGLOMERATED CARBON BLACK, RECYCLING THE UNAGGLOMERATED CARBON BLACK INTO THE FIRST MENTIONED DRY FLOCCULENT CARBON BLACK DRYING THE SEPARATED AGGLOMERATES TO A DESIRED MOISTURE CONTENT AND REMOVING DRIED AGGLOMERATES AS THE PRODUCT OF THE PROCESS.
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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) | 1953-06-19 | 1953-12-19 | 1954-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-19 | 1957-12-19 | 1958-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-19 | 1961-12-19 | 1962-06-20 | $7700.00 | Window Closed / Lapsed |