Patent US3224686A successfully refreshed from Google Patents.
US3224686A
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Impact pulverization-classification
Assignee: EIDP Inc
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Filing: 1962-04-27
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Granted: 1965-12-21
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Expires: 1982-04-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Curtis C Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:58
CPC Classifications
B; B02; B02C; B02C23/00; B02C13/00; B02C13/14; B02C13/18; B02C13/1807; B02C13/1814; B02C13/22; B02C13/24; B02C23/18; B02C23/24; B02C23/30; B02C23/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
131 words
A METHOD OF IMPACT PULVERIZATION-CLASSIFICATION OF SOLIDS COMPRISING, IN SEQUENCE,. SUBJECTING SAID SOLIDS TO CENTRIFUGAL IMPACT PULVERIZATION IN THE PRESENCE OF A CONCURRENTLY FLOWING STREAM OF CARRIER GAS, THEREBY EFFECTING THE THROWOUT OF COARSE PULVERIZED SOLIDS BY THE COMBINED EFFECTS OF CENTRIFUGAL FORCE AND GRAVITY AND THE ENTRAINMENT OF THE FINE DISPERSED PULVERIZED SOLIDS IN SAID CARRIER GAS, INTRODUCING AN ADDITIONAL QUANTITY OF CARRIER GAS IN CO-ROTATIONAL VORTICAL FLOW TO THE CARRIER GAS ENTRAINING SAID FINE DISPERSED PULVERIZED SOLIDS IN SUFFICIENT QUANTITY TO EFFECT A CLASSIFICATION OF SAID DISPERSED PULVERIZED SOLIDS INTO A FIRST FRACTION OF FINE PARTICLE SIZE CONCENTRATED CENTRALLY OF SAID VORTICAL FLOW AND A SECOND FRACTION OF COARSE PARTICLE SIZE CONCENTRATED PERIPHERALLY OF SAID VORTICAL FLOW, AND WITHDRAWING AT LEAST SAID FIRST FRACTION AS A SEPARATE PULVERIZED PRODUCT.
Claim 2
Independent Claim
131 words
A METHOD OF IMPACT PULVERIZATION-CLASSIFICATION OF SOLIDS COMPRISING, IN SEQUENCE,. SUBJECTING SAID SOLIDS TO CENTRIFUGAL IMPACT PULVERIZATION IN THE PRESENCE OF A CONCURRENTLY FLOWING STREAM OF CARRIER GAS, THEREBY EFFECTING THE THROWOUT OF COARSE PULVERIZED SOLIDS BY THE COMBINED EFFECTS OF CENTRIFUGAL FORCE AND GRAVITY AND THE ENTRAINMENT OF THE FINE DISPERSED PULVERIZED SOLIDS IN SAID CARRIER GAS, INTRODUCING AN ADDITIONAL QUANTITY OF CARRIER GAS IN CO-ROTATIONAL VORTICAL FLOW TO THE CARRIER GAS ENTRAINING SAID FINE DISPERSED PULVERIZED SOLIDS IN SUFFICIENT QUANTITY TO EFFECT A CLASSIFICATION OF SAID DISPERSED PULVERIZED SOLIDS INTO A FIRST FRACTION OF FINE PARTICLE SIZE CONCENTRATED CENTRALLY OF SAID VORTICAL FLOW AND A SECOND FRACTION OF COARSE PARTICLE SIZE CONCENTRATED PERIPHERALLY OF SAID VORTICAL FLOW, AND WITHDRAWING AT LEAST SAID FIRST FRACTION AS A SEPARATE PULVERIZED PRODUCT.
Claim 3
Independent Claim
93 words
AN APPARATUS FOR IMPACT PULVERIZATION-CLASSIFICATION OF SOLIDS COMPRISING, IN COMBINATION, (2) A CENTRIFUGAL IMPACT MILL INCORPORATING A POWER-DRIVEN ROTARY PULVERIZER DISK PROVIDED ON ITS OUTBOARD SURFACE WITH RADIALLY DISPOSED SOLIDS-DIRECTING VANES IMPARTING EXTREME CENTRIFUGAL FORCE LOADINGS TO SOLIDS MOVED THEREPAST MOUNTED GENERALLY CO-AXIAL WITH RESPECT TO A STATOR RING HAVING AN AXIALLY ORIENTED FACE ENCIRCLING THE PERIPHEREY OF SAID PULVERIZER DISK AT CLOSE CLEARANCE THEREWITH, MEANS FOR INTRODUCING SOLIDS TO BE PULVERIZED, AND MEANS FOR INTRODUCING CARRIER GAS IN CONCURRENT FLOW WITH SAID SOLIDS RADIALLY OUTWARD PAST THE VANES OF SAID PULVERIZER DISK,
Claim 4
Independent Claim
93 words
AN APPARATUS FOR IMPACT PULVERIZATION-CLASSIFICATION OF SOLIDS COMPRISING, IN COMBINATION, (2) A CENTRIFUGAL IMPACT MILL INCORPORATING A POWER-DRIVEN ROTARY PULVERIZER DISK PROVIDED ON ITS OUTBOARD SURFACE WITH RADIALLY DISPOSED SOLIDS-DIRECTING VANES IMPARTING EXTREME CENTRIFUGAL FORCE LOADINGS TO SOLIDS MOVED THEREPAST MOUNTED GENERALLY CO-AXIAL WITH RESPECT TO A STATOR RING HAVING AN AXIALLY ORIENTED FACE ENCIRCLING THE PERIPHEREY OF SAID PULVERIZER DISK AT CLOSE CLEARANCE THEREWITH, MEANS FOR INTRODUCING SOLIDS TO BE PULVERIZED, AND MEANS FOR INTRODUCING CARRIER GAS IN CONCURRENT FLOW WITH SAID SOLIDS RADIALLY OUTWARD PAST THE VANES OF SAID PULVERIZER DISK,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |