US3191856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge rotor
Assignee: Beckman Coulter Inc
•
Filing: 1962-03-27
•
Granted: 1965-06-29
•
Expires: 1982-03-27
Abstract
No abstract record available.
Inventors
- 👤 Edward G Pickels
- 👤 Richard C Stallman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:49
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/04; B04B5/0442; B04B2005/0464
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A CENTRIFUAGE, A ROTOR HAVING INNER AND OUTER BOWLS SECURED TOGETHER TO FORM A CYLINDRICAL CHAMBER THEREBETWEEN, A CENTRAL BOWL DISPOSED IN SAID CHAMBER, MEANS FORMED TO DEFINE A SELF-LUBRICATED BEARING INTERFACE BETWEEN SAID INNER AND CENTRAL BOWLS, SAID INTERFACE EXTENDING TRANSVERSELY OF THE AXIS OF ROTATION OF THE ROTOR AND DISPOSED TO SUPPORT SAID CENTRAL BOWL UPON SAID INNER BOWL AND TO PERMIT RELATIVE ROTATION THEREBETWEEN, MEANS ROTATABLE WITH AND SECURED TO THE OUTER BOWL AND FORMED TO BE AXIALLY MOVABLE BETWEEN ADVANCED AND RETRACTED POSITIONS TO RESPECTIVELY LOCK AND UNLOCK SAID OUTER BOWL WITH RESPECT TO SAID CENTRAL BOWL, SAID CENTRAL BOWL BEING OTHERWISE FREE TO ROTATE IN SAID CHAMBER, THE LAST NAMED
Claim 2
Dependent Claim
116 words
IN A CENTRIFUAGE, A ROTOR HAVING INNER AND OUTER BOWLS SECURED TOGETHER TO FORM A CYLINDRICAL CHAMBER THEREBETWEEN, A CENTRAL BOWL DISPOSED IN SAID CHAMBER, MEANS FORMED TO DEFINE A SELF-LUBRICATED BEARING INTERFACE BETWEEN SAID INNER AND CENTRAL BOWLS, SAID INTERFACE EXTENDING TRANSVERSELY OF THE AXIS OF ROTATION OF THE ROTOR AND DISPOSED TO SUPPORT SAID CENTRAL BOWL UPON SAID INNER BOWL AND TO PERMIT RELATIVE ROTATION THEREBETWEEN, MEANS ROTATABLE WITH AND SECURED TO THE OUTER BOWL AND FORMED TO BE AXIALLY MOVABLE BETWEEN ADVANCED AND RETRACTED POSITIONS TO RESPECTIVELY LOCK AND UNLOCK SAID OUTER BOWL WITH RESPECT TO SAID CENTRAL BOWL, SAID CENTRAL BOWL BEING OTHERWISE FREE TO ROTATE IN SAID CHAMBER, THE LAST NAMED
References Cited (Backward Citations)
US560635A
Cited
US585936A
Cited
US2017598A
Cited
GB189404094A
Cited
US780444A
Cited
US732886A
Cited
US1780655A
Cited
US2003621A
Cited
US2139715A
Cited
US2125453A
Cited
GB481711A
Cited
US2316982A
Cited
US2344888A
Cited
US2573585A
Cited
DE877128C
Cited
US2808201A
Cited
US3096282A
Cited
US3073517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |