US3722791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge rotor with removable trunnion pins
Assignee: Beckman Coulter Inc
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Filing: 1972-04-03
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Granted: 1973-03-27
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Expires: 1992-04-03
Abstract
Abstract A centrifuge rotor having a core with outwardly extending support arms having removable trunnion pins for supporting a carrier.
Inventors
- 👤 H Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:34
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0414; B04B5/0421
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
182 words
A centrifuge rotor comprising a core for mounting the rotor on a drive shaft for rotating the rotor about its axis of rotation, a plurality of spaced arms extending radially outward from the axis of rotation, a pair of intersecting holes formed in the ends of each of said arms, said holes lying in a plane perpendicular to the axis of rotation, one of said pairs of holes in each arm aligned with one of the holes in one adjacent arm and the other aligned with one of the holes on the other adjacent arm, trunnion pins disposed in each of said holes with one end extending outwardly from said arms towards the outwardly extending pin of an adjacent arm to form a trunnion for supporting a carrier, the other end of each of said pins including a stepped portion defining a surface and a shoulder, and said other end of the pins in each pair of holes being oriented to overlap with said surface of each in face to face relationship and the shoulders abutting a side of the cooperating pin.
Claim 2
Dependent Claim
182 words
A centrifuge rotor comprising a core for mounting the rotor on a drive shaft for rotating the rotor about its axis of rotation, a plurality of spaced arms extending radially outward from the axis of rotation, a pair of intersecting holes formed in the ends of each of said arms, said holes lying in a plane perpendicular to the axis of rotation, one of said pairs of holes in each arm aligned with one of the holes in one adjacent arm and the other aligned with one of the holes on the other adjacent arm, trunnion pins disposed in each of said holes with one end extending outwardly from said arms towards the outwardly extending pin of an adjacent arm to form a trunnion for supporting a carrier, the other end of each of said pins including a stepped portion defining a surface and a shoulder, and said other end of the pins in each pair of holes being oriented to overlap with said surface of each in face to face relationship and the shoulders abutting a side of the cooperating pin.
Claim 3
Dependent Claim
14 words
A centrifuge rotor as in claim 1 wherein said pins are right circular cylinders.
Claim 4
Dependent Claim
14 words
A centrifuge rotor as in claim 1 wherein the arms terminate in enlarged portions.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |