US3136722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pusher-type centrifuge
Assignee: Pennwalt Corp
•
Filing: 1961-10-18
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Granted: 1964-06-09
•
Expires: 1981-10-18
Abstract
No abstract record available.
Inventors
- 👤 Fred P Gooch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:00
CPC Classifications
B; B04; B04B; B04B3/00; B04B3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
187 words
A COMPACT CENTRIFUGAL CONTINUOUS SOLIDS RIDER OF THE PUSHER TYPE COMPRISING IN COMBINATION AN OUTER CYLINDRICAL ROTOR HAVING A LIQUID-DRAINING SURFACE COMPOSED OF SMOOTH SPACED BARS DISPOSED LONITUDINALLY THEREOF AND AN INNER ROTOR COAXIAL WITHIN THE OUTER ROTOR AND DEFINED BY A CENTRAL PORTION AND AN OUTER FRUSTO-CONICAL PERFORATE PORTION, THE LARGER END OF THE FRUSTO-CONICAL PORTION COMPRISING AN ANNULAR PUSH SURFACE AND FACING AN OPEN END OF THE OUTER ROTOR, MEANS FOR ROTATINGTHE ROTORS TOGETHER, MEANS FOR RECIPROCATING THE INNER ROTOR RELATIVE TO THE OUTER ROTOR, A FEED TUBE EXTENDING AXIALLY INTO THE SAID OPEN END OF THE OUTER ROTOR AND TERMINATING IN AN OUTLET, THE MARGIN OF THE OUTLET BEING FLARED AND SPACED FROM THE CENTRAL PORTION OF THE INNER ROTOR, AN IMPRFORATE FLARING DISTRIBUTOR SHELL MOUNTED FOR ROTATION WITH THE INNER ROTOR, THE SMALLER END OF THE SHELL CLOSELY CIRCUMPOSING THE FLARED OUTLET OF THE FEED TUBE, THE LARGER END OF THE SHELL DISPOSED ADJACENT THE INNER PERIPHERY OF THE OUTER FRUSTO-CONICAL PORTION OF THE INNER ROTOR, AND VANE MEANS POSITIONED RADIALLY AND EXTENDING BETWEEN THE FRUSTO-CONICAL PORTION AND THE SHELL, AND THE SHELL
Claim 2
Dependent Claim
187 words
A COMPACT CENTRIFUGAL CONTINUOUS SOLIDS RIDER OF THE PUSHER TYPE COMPRISING IN COMBINATION AN OUTER CYLINDRICAL ROTOR HAVING A LIQUID-DRAINING SURFACE COMPOSED OF SMOOTH SPACED BARS DISPOSED LONITUDINALLY THEREOF AND AN INNER ROTOR COAXIAL WITHIN THE OUTER ROTOR AND DEFINED BY A CENTRAL PORTION AND AN OUTER FRUSTO-CONICAL PERFORATE PORTION, THE LARGER END OF THE FRUSTO-CONICAL PORTION COMPRISING AN ANNULAR PUSH SURFACE AND FACING AN OPEN END OF THE OUTER ROTOR, MEANS FOR ROTATINGTHE ROTORS TOGETHER, MEANS FOR RECIPROCATING THE INNER ROTOR RELATIVE TO THE OUTER ROTOR, A FEED TUBE EXTENDING AXIALLY INTO THE SAID OPEN END OF THE OUTER ROTOR AND TERMINATING IN AN OUTLET, THE MARGIN OF THE OUTLET BEING FLARED AND SPACED FROM THE CENTRAL PORTION OF THE INNER ROTOR, AN IMPRFORATE FLARING DISTRIBUTOR SHELL MOUNTED FOR ROTATION WITH THE INNER ROTOR, THE SMALLER END OF THE SHELL CLOSELY CIRCUMPOSING THE FLARED OUTLET OF THE FEED TUBE, THE LARGER END OF THE SHELL DISPOSED ADJACENT THE INNER PERIPHERY OF THE OUTER FRUSTO-CONICAL PORTION OF THE INNER ROTOR, AND VANE MEANS POSITIONED RADIALLY AND EXTENDING BETWEEN THE FRUSTO-CONICAL PORTION AND THE SHELL, AND THE SHELL
References Cited (Backward Citations)
US3123557A
Cited
US1842464A
Cited
US2367961A
Cited
GB590969A
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FR1024145A
Cited
US2685370A
Cited
US2806603A
Cited
US2755934A
Cited
GB750531A
Cited
DE1079551B
Cited
US2828021A
Cited
US3087621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-09 | 1967-12-09 | 1968-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-09 | 1971-12-09 | 1972-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-09 | 1975-12-09 | 1976-06-09 | $7700.00 | Window Closed / Lapsed |