US3350002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge apparatus
Assignee: Beckman Coulter Inc
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Filing: 1963-03-14
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Granted: 1967-10-31
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Expires: 1983-03-14
Abstract
No abstract record available.
Inventors
- 👤 Edward G Pickels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:16
CPC Classifications
B; B04; B04B; B04B11/00; B04B11/04; B04B1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A CENTRIFUGAL ROTOR ASSEMBLY FOR CENTRIFUGATION OF LIQUID SAMPLE AND RESUSPENSION OF SEDIMENT RECOVERED THEREFROM COMPRISING A HOLLOW BOWL FORMED WITH AN UPWARDLY EXTENDING INNER WALL, A CORE BODY CARRIED WITHIN SAID BOWL AND DISPOSED ABOUT A VERTICAL AXIS FOR CENTRIFUGATION OPERATIONS, SAID CORE BODY HAVING A SUBSTANTIALLY CYLINDRICAL OUTER SURFACE AND BEING FREE TO ROTATE INDEPENDENT OF SAID HOLLOW BOWL, SAID CORE BODY COMPRISING DISCRETE SEGMENTS CONTRACTABLE DURING CENTRIFUGATION TO PROVIDE A SEPARATION CHAMBER FOR ACCUMULATING SEDIMENT, SAID SEPARATION CHAMBER BEING DEFINED BY SAID INNER WALL OF SAID BOWL AND SAID OUTER SURFACE OF SAID CORE BODY, AND SAID CORE BODY BEING FREE UPON TERMINATION OF CENTRIFUGATION TO MOVE TOWARD SAID INNER WALL OF SAID BOWL AND RIDE ALONG SAID INNER WALL TO REMOVE SAID SEDIMENT THEREFROM FOR RESUSPENDING SAID SEDMENT.
Claim 2
Dependent Claim
132 words
A CENTRIFUGAL ROTOR ASSEMBLY FOR CENTRIFUGATION OF LIQUID SAMPLE AND RESUSPENSION OF SEDIMENT RECOVERED THEREFROM COMPRISING A HOLLOW BOWL FORMED WITH AN UPWARDLY EXTENDING INNER WALL, A CORE BODY CARRIED WITHIN SAID BOWL AND DISPOSED ABOUT A VERTICAL AXIS FOR CENTRIFUGATION OPERATIONS, SAID CORE BODY HAVING A SUBSTANTIALLY CYLINDRICAL OUTER SURFACE AND BEING FREE TO ROTATE INDEPENDENT OF SAID HOLLOW BOWL, SAID CORE BODY COMPRISING DISCRETE SEGMENTS CONTRACTABLE DURING CENTRIFUGATION TO PROVIDE A SEPARATION CHAMBER FOR ACCUMULATING SEDIMENT, SAID SEPARATION CHAMBER BEING DEFINED BY SAID INNER WALL OF SAID BOWL AND SAID OUTER SURFACE OF SAID CORE BODY, AND SAID CORE BODY BEING FREE UPON TERMINATION OF CENTRIFUGATION TO MOVE TOWARD SAID INNER WALL OF SAID BOWL AND RIDE ALONG SAID INNER WALL TO REMOVE SAID SEDIMENT THEREFROM FOR RESUSPENDING SAID SEDMENT.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |