Patent US3191872A successfully refreshed from Google Patents.
US3191872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disintegrating apparatus
Assignee: Individual
•
Filing: 1958-03-03
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Granted: 1965-06-29
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Expires: 1978-03-03
Abstract
No abstract record available.
Inventors
- 👤 Howard W Dyson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:41
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/66; B; B02; B02C; B02C18/00; B02C18/0084; B02C18/0092; D21B; D21B1/00; D21B1/04; D21B1/12; D21B1/30; D21B1/34; D21B1/345
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
A SLURRY-FORMING DEVICE COMPRISING; A TANK HAVING A SMOOTHLY DISHED BOTTOM, THE INNER PORTION OF SAID BOTTOM HAVING SLIGHT UPWARD CURVATURE, GRADUALLY CONTINUED BY SHARPER UPWARD CURVATURE OF A MAJOR OUTER PORTION OF SAID BOTTOM CONSTITUTING THE REMAINDER OF THE ENTIRE BOTTOM AREA, AND SAID OUTER PORTION BEING CONTINUED BY AN UPSTANDING SIDE WALL, SAID TANK BEING PERFORATED ABOUT ITS PERIPHERY ABOVE SAID BOTTOM AREA; A COLLECTING TROUGH SURROUNDING SAID PERFORATED PORTION TO RECEIVE THE SLURRY PASSING THERETHROUGH; A ROTOR PLATE CLOSELY OVERLYING SAID BOTTOM AND HAVING AN UPPER SURFACE OPENLY FACING THE OVERLYING REGION OF THE TANK, SAID ROTOR PLATE COVERING SUBSTANTIALLY ALL OF THE AREA, AND SUBSTANTIALLY ONLY THE AREA OF SAID INNER PORTION OF THE BOTTOM; A SERIES OF COMBINED TOOTH AND VANE MEMBERS ON SAID UPPER SURFACE OF SAID PLATE; GENERALLY-RADIALLY EXTENDING VANE ELEMENTS DEPENDING DOWNWARDLY FROM SAID PLATE INTO CLOSE PROXIMITY TO THE UNDERLYING BOTTOM OF SAID TANK; AND MEANS FOR ROTATING SAID PLATE TO PROPEL THE SLURRY CENTRIFUGALLY OUTWARDLY IN A SWIRLING MASS OVER THE OUTER PORTION OF THE SMOOTH BOTTOM, AGAINST THE UPSTANDING SIDE WALL, UPWARDLY ALONG THE SIDE WALL, ACROSS THE PERFORATED PORTION OF THE TANK, THROUGH SAID PERFORATED PORTION, AND INTO SAID COLLECTING TROUGH.
Claim 2
Dependent Claim
203 words
A SLURRY-FORMING DEVICE COMPRISING; A TANK HAVING A SMOOTHLY DISHED BOTTOM, THE INNER PORTION OF SAID BOTTOM HAVING SLIGHT UPWARD CURVATURE, GRADUALLY CONTINUED BY SHARPER UPWARD CURVATURE OF A MAJOR OUTER PORTION OF SAID BOTTOM CONSTITUTING THE REMAINDER OF THE ENTIRE BOTTOM AREA, AND SAID OUTER PORTION BEING CONTINUED BY AN UPSTANDING SIDE WALL, SAID TANK BEING PERFORATED ABOUT ITS PERIPHERY ABOVE SAID BOTTOM AREA; A COLLECTING TROUGH SURROUNDING SAID PERFORATED PORTION TO RECEIVE THE SLURRY PASSING THERETHROUGH; A ROTOR PLATE CLOSELY OVERLYING SAID BOTTOM AND HAVING AN UPPER SURFACE OPENLY FACING THE OVERLYING REGION OF THE TANK, SAID ROTOR PLATE COVERING SUBSTANTIALLY ALL OF THE AREA, AND SUBSTANTIALLY ONLY THE AREA OF SAID INNER PORTION OF THE BOTTOM; A SERIES OF COMBINED TOOTH AND VANE MEMBERS ON SAID UPPER SURFACE OF SAID PLATE; GENERALLY-RADIALLY EXTENDING VANE ELEMENTS DEPENDING DOWNWARDLY FROM SAID PLATE INTO CLOSE PROXIMITY TO THE UNDERLYING BOTTOM OF SAID TANK; AND MEANS FOR ROTATING SAID PLATE TO PROPEL THE SLURRY CENTRIFUGALLY OUTWARDLY IN A SWIRLING MASS OVER THE OUTER PORTION OF THE SMOOTH BOTTOM, AGAINST THE UPSTANDING SIDE WALL, UPWARDLY ALONG THE SIDE WALL, ACROSS THE PERFORATED PORTION OF THE TANK, THROUGH SAID PERFORATED PORTION, AND INTO SAID COLLECTING TROUGH.
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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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |