Patent US3090549A successfully refreshed from Google Patents.
US3090549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge apparatus
Assignee: Individual
•
Filing: 1958-02-24
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Granted: 1963-05-21
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Expires: 1978-02-24
Abstract
No abstract record available.
Inventors
- 👤 Rastgeldi Selahaddin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:14
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/02; B04B5/00; B04B5/04; B04B5/0442; B04B2005/0457
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A CENTRIFUGE FOR CONTINUOUSLY SEPARATING THE SOLID COMPONENTS OF A FLUID DISPERSION IN ACCORDANCE WITH THEIR DENSITY OR SIZE COMPRISING A ROTOR HAVING AN AXIAL INLET, A FLEXIBLE TUBE OF SUBSTANTIALLY UNIFORM DIAMETER HELICALLY WOUND ON THE ROTOR WITH ONE OPEN END THEREOF DISPOSED IN SAID INLET FOR CONTINUOUSLY RECEIVING SAID FLUID DISPERSION, THE OTHER END OF SAID TUBE BEING OPEN AND DISPOSED ON THE PERIPHERY OF SAID ROTOR FOR CONTINUOUSLY DISCHARGING SAID DISPERSION, MEANS ON THE ROTOR IN PRESSURE CONTACT WITH SAID TUBE AT SPACED POINTS ALONG ITS LENGTH TO FORM SPACED PERMANENTLY FORMED COMMUNICATING CHAMBERS IN SAID TUBE THROUGHOUT ITS LENGTH, AND MEANS FOR ROTATING SAID ROTOR ABOUT ITS AXIS.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |