US3021202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discharge seal device for rotating vessels
Assignee: Ozark-Mahoning Co
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Filing: 1959-07-10
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Granted: 1962-02-13
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Expires: 1979-07-10
Abstract
No abstract record available.
Inventors
- 👤 John E Peirce
- 👤 Jack H Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:09
CPC Classifications
B; B65; B65G; B65G53/00; B65G53/34; B65G53/40; B65G53/48; C; C01; C01B; C01B7/00; C01B7/19; C01B7/191; C01B7/192
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
IN A CYLINDRICAL VESSEL ROTATABLE AROUND ITS LONGITUDINAL AXIS IN A SUBSTANTIALLY HORIZONTAL ORIENTATION, AN OPENING IN ONE END OF THE VESSEL ON THE AXIAL LINE, A SPIRAL CONVEYOR CASE POSITIONED IN SAID OPENING AND EXTENDING INTO SAID VESSEL WITH ITS LONGITUDINAL AXIS ON THE AXIS OF THE VESSEL, MEANS FIXING SAID CASE TO SAID VESSEL TO ROTATE THEREWITH AND FIX ITS POSITION IN SAID OPENING, A SPIRAL CONVEYOR ON A CONVEYOR SHAFT ROTATABLY MOUNTED IN SAID CASE AND EXTENDING BOTH INTO AND OUTSIDE OF SAID VESSEL MEANS IN SAID VESSEL FOR FEEDING MATERIAL THEREFROM INTO SAID CASE, MEANS ON THE END OF THE CASE EXTERNAL OF THE VESSEL RESILIENTLY RESISTING EXTRUSION OF MATERIAL THEREFROM WHEREBY TO FORCE FORMATION OF A GAS SEALING PLUG IN SAID CASE AND MEANS FOR ROTATING SAID CONVEYOR SHAFT RESILIENTLY COUPLED THEREWITH WHEREBY TO PERMIT MOTION OF THE CONVEYOR SHAFT RELATIVE THE ROTATING MEANS WITHOUT STRESSING THE FORMER.
Claim 2
Dependent Claim
153 words
IN A CYLINDRICAL VESSEL ROTATABLE AROUND ITS LONGITUDINAL AXIS IN A SUBSTANTIALLY HORIZONTAL ORIENTATION, AN OPENING IN ONE END OF THE VESSEL ON THE AXIAL LINE, A SPIRAL CONVEYOR CASE POSITIONED IN SAID OPENING AND EXTENDING INTO SAID VESSEL WITH ITS LONGITUDINAL AXIS ON THE AXIS OF THE VESSEL, MEANS FIXING SAID CASE TO SAID VESSEL TO ROTATE THEREWITH AND FIX ITS POSITION IN SAID OPENING, A SPIRAL CONVEYOR ON A CONVEYOR SHAFT ROTATABLY MOUNTED IN SAID CASE AND EXTENDING BOTH INTO AND OUTSIDE OF SAID VESSEL MEANS IN SAID VESSEL FOR FEEDING MATERIAL THEREFROM INTO SAID CASE, MEANS ON THE END OF THE CASE EXTERNAL OF THE VESSEL RESILIENTLY RESISTING EXTRUSION OF MATERIAL THEREFROM WHEREBY TO FORCE FORMATION OF A GAS SEALING PLUG IN SAID CASE AND MEANS FOR ROTATING SAID CONVEYOR SHAFT RESILIENTLY COUPLED THEREWITH WHEREBY TO PERMIT MOTION OF THE CONVEYOR SHAFT RELATIVE THE ROTATING MEANS WITHOUT STRESSING THE FORMER.
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) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |