US3298618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispersing apparatus
Assignee: EIDP Inc
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Filing: 1963-10-17
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Granted: 1967-01-17
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Expires: 1983-10-17
Abstract
No abstract record available.
Inventors
- 👤 Charles W Talpey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:43
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/80; B01F27/93; B01F27/05; B01F27/11; B01F27/19; B01F27/191
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
AN APPARATUS FOR GRINDING AND DISPERSING PARTICULATE SOLIDS IN LIQUIDS WHICH COMPRISES A VERTICAL CYLINDRICAL VESSEL HAVING AN INLET IN THE LOWER PORTION THEREOF, AN ANNULAR SUPPRESSION PLATE MOUNTED ON TOP OF SAID VESSEL, THE OPENING IN SAID SUPPRESSION PLATE BEING GENERALLY CENTERED THEREIN, A ROTATABLE MEMBER EXTENDING THROUGH SAID OPENING AND INTO SAID VESSEL GENERALLY ALONG THE CYLINDRICAL AXIS OF SAID VESSEL, A PLURALITY OF IMPELLERS WITHIN SAID VESSEL ATTACHED TO SAID ROTATABLE MEMBER, THE DIAMETER OF SAID IMPELLERS BEING A SUBSTANTIAL PORTION OF THE DIAMETER OF SAID VESSEL AND THE UPPERMOST IMPELLER BEING SPACED FROM ABOUT 1/4 INCH TO ABOUT 1 INCH FROM THE LOWER SURFACE OF SAID SUPPRESSION PLATE, SAID OPENING IN SAIS SUPPRESSION PLATE BEING OF A DIAMETER WHICH WILL PERMIT A SUBSTANTIAL FLOW OF A DISPERSION OF SAID SOLIDS IN SAID LIQUIDS THROUGH SAID OPENING WHEN SAID SUPPRESSION PLATE AND SAID ROTATABLE MEMBER ARE IN OPERATIONAL RELATIONSHIP AND SAID DIAMETER OF SAID OPENING BEING A MAXIMUM OF ABOUT 2 INCHES LARGER THAN THE DIAMETER OF SAID ROTATABLE MEMBER.
Claim 2
Independent Claim
173 words
AN APPARATUS FOR GRINDING AND DISPERSING PARTICULATE SOLIDS IN LIQUIDS WHICH COMPRISES A VERTICAL CYLINDRICAL VESSEL HAVING AN INLET IN THE LOWER PORTION THEREOF, AN ANNULAR SUPPRESSION PLATE MOUNTED ON TOP OF SAID VESSEL, THE OPENING IN SAID SUPPRESSION PLATE BEING GENERALLY CENTERED THEREIN, A ROTATABLE MEMBER EXTENDING THROUGH SAID OPENING AND INTO SAID VESSEL GENERALLY ALONG THE CYLINDRICAL AXIS OF SAID VESSEL, A PLURALITY OF IMPELLERS WITHIN SAID VESSEL ATTACHED TO SAID ROTATABLE MEMBER, THE DIAMETER OF SAID IMPELLERS BEING A SUBSTANTIAL PORTION OF THE DIAMETER OF SAID VESSEL AND THE UPPERMOST IMPELLER BEING SPACED FROM ABOUT 1/4 INCH TO ABOUT 1 INCH FROM THE LOWER SURFACE OF SAID SUPPRESSION PLATE, SAID OPENING IN SAIS SUPPRESSION PLATE BEING OF A DIAMETER WHICH WILL PERMIT A SUBSTANTIAL FLOW OF A DISPERSION OF SAID SOLIDS IN SAID LIQUIDS THROUGH SAID OPENING WHEN SAID SUPPRESSION PLATE AND SAID ROTATABLE MEMBER ARE IN OPERATIONAL RELATIONSHIP AND SAID DIAMETER OF SAID OPENING BEING A MAXIMUM OF ABOUT 2 INCHES LARGER THAN THE DIAMETER OF SAID ROTATABLE MEMBER.
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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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |