US3268159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge
Assignee: JM Voith GmbH
•
Filing: 1963-10-11
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Granted: 1966-08-23
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Expires: 1983-10-11
Abstract
No abstract record available.
Inventors
- 👤 Kern Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:32
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/20; B04B2001/2083
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
189 words
A CENTRIFUGE FOR THE SEPARATION OF DISPERSED SOLIDS FROM A MUD, SAID CENTRIFUGE COMPRISING A CONTINUOUS ROTATABLE BODY CARRYING ON ITS RADIALLY OUTER SURFACE A HELICALLY ELONGATED SCREW FLANGE, A ROTATABLE DRUM SURROUNDING THE BODY AND MOUNTED FOR ROTATION RELATIVE TO THE BODY, ONE END OF THE DRUM BEING PROVIDED WITH AN END-WALL CARRYING A CENTRAL HOLLOW SHAFT FOR ROTATABLY SUPPORTING THE DRUM THE END-WALL HAVING CONDUIT MEANS FOR CONDUCTING THE MUD INTO THE ANNULAR SPACE BETWEEN THE BODY AND THE DRUM, THE OUTER PERIPHERY OF SAID FLANGE SUBSTANTIALLY FITTING THE ADJACENT WALL OF SAID DRUM, THE OPPOSITE END OF THE DRUM BEING OF REDUCED DIAMETER AND HAVING OPENINGS IN IT FOR THE DISCHARGE OF SOLIDS WHICH HAVE BEEN MOVED BY THE SCREW FLANGE TO THAT END OF THE DRUM, AND PASSAGEWAY MEANS IN SAID BODY EXTENDING LENGHTWISE OF THE AXIS OF ROTATION THEREOF OPENING AT ONE END INTO SAID ANNULAR SPACE AND EXTENDING THROUGH AN END PORTION OF SAID BODY FOR CONDUCTING THE SEPARATED LIQUID AWAY FROM SAID ANNULAR SPACE, SAID PASSAGEWAY MEANS BEING OF RESTRICTED CROSS-SECTION TO PREVENT THE DEPOSITION THEREIN OF SOLIDS FROM THE SEPARATED LIQUID.
Claim 2
Dependent Claim
189 words
A CENTRIFUGE FOR THE SEPARATION OF DISPERSED SOLIDS FROM A MUD, SAID CENTRIFUGE COMPRISING A CONTINUOUS ROTATABLE BODY CARRYING ON ITS RADIALLY OUTER SURFACE A HELICALLY ELONGATED SCREW FLANGE, A ROTATABLE DRUM SURROUNDING THE BODY AND MOUNTED FOR ROTATION RELATIVE TO THE BODY, ONE END OF THE DRUM BEING PROVIDED WITH AN END-WALL CARRYING A CENTRAL HOLLOW SHAFT FOR ROTATABLY SUPPORTING THE DRUM THE END-WALL HAVING CONDUIT MEANS FOR CONDUCTING THE MUD INTO THE ANNULAR SPACE BETWEEN THE BODY AND THE DRUM, THE OUTER PERIPHERY OF SAID FLANGE SUBSTANTIALLY FITTING THE ADJACENT WALL OF SAID DRUM, THE OPPOSITE END OF THE DRUM BEING OF REDUCED DIAMETER AND HAVING OPENINGS IN IT FOR THE DISCHARGE OF SOLIDS WHICH HAVE BEEN MOVED BY THE SCREW FLANGE TO THAT END OF THE DRUM, AND PASSAGEWAY MEANS IN SAID BODY EXTENDING LENGHTWISE OF THE AXIS OF ROTATION THEREOF OPENING AT ONE END INTO SAID ANNULAR SPACE AND EXTENDING THROUGH AN END PORTION OF SAID BODY FOR CONDUCTING THE SEPARATED LIQUID AWAY FROM SAID ANNULAR SPACE, SAID PASSAGEWAY MEANS BEING OF RESTRICTED CROSS-SECTION TO PREVENT THE DEPOSITION THEREIN OF SOLIDS FROM THE SEPARATED LIQUID.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |