US4375272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fixed angle tube carrier
Assignee: Beckman Coulter Inc
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Filing: 1981-07-01
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Granted: 1983-03-01
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Expires: 2001-07-01
Abstract
Abstract A fixed angle tube carrier is provided for use with externally shouldered sample tubes and a centrifuge rotor having formed therein a plurality of symmetrically disposed vertical slots in its outer peripheral surface. The slots are formed in the shape of a "T" and adapted for sliding engagement with a tube carrier. The tube carrier comprises a vertically elongated member having a "T" shaped cross-section which is adapted for sliding engagement with the slots of the rotor. The carrier contains a plurality of circular recesses which are open at each end and adapted for holding an externally shouldered sample tube. The longitudinal axis of each recess is disposed radially of the vertical axis of the rotor and at an angle less than 90° thereto.
Inventors
- 👤 John H. Sutton, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:30
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0414
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
125 words
A tube carrier for use with externally shouldered sample tubes and a centrifuge rotor adapted to rotate about its vertical axis, said rotor having formed therein a plurality of symmetrically disposed vertical slots in its outer peripheral surface, said slots formed in the shape of a T and adapted for sliding engagement with a tube carrier, said carrier comprising: a vertically elongated member having a T-shaped cross section adapted for sliding engagement with the slots of said rotor; said carrier containing a plurality of circular recesses; said recesses open at each end and adapted for holding an externally shouldered sample tube; the longitudinal axis of each said recess disposed radially of the vertical axis of said rotor and at an angle less than 90° thereto.
Claim 2
Dependent Claim
125 words
A tube carrier for use with externally shouldered sample tubes and a centrifuge rotor adapted to rotate about its vertical axis, said rotor having formed therein a plurality of symmetrically disposed vertical slots in its outer peripheral surface, said slots formed in the shape of a T and adapted for sliding engagement with a tube carrier, said carrier comprising: a vertically elongated member having a T-shaped cross section adapted for sliding engagement with the slots of said rotor; said carrier containing a plurality of circular recesses; said recesses open at each end and adapted for holding an externally shouldered sample tube; the longitudinal axis of each said recess disposed radially of the vertical axis of said rotor and at an angle less than 90° thereto.
Claim 3
Dependent Claim
29 words
The tube carrier recited in claim 1, wherein the longitudinal axis of each said recess defines an angle of 45° with respect to the vertical axis of said rotor.
Claim 4
Dependent Claim
148 words
A tube carrier for use with externally shouldered sample tubes having indexing means and a centrifuge rotor adapted to rotate about its vertical axis and having formed therein a plurality of symmetrically disposed vertical slots in its outer peripheral surface, said slots formed in the shape of a "T" and adapted for sliding engagement with a tube carrier, said carrier comprising: a vertically elongated member having a T-shaped cross section adapted for sliding engagement with the slots of said rotor; a plurality of circular recesses intersecting said carrier radially of said vertical axis of said rotor and at an angle thereto; a concentric counterbore joining each of said recesses on the side nearest said vertical axis of said rotor; a longitudinal slot extending the length of said counterbore adapted for engagement with said indexing means of said sample tube to orient said tube on insertion into a recess.
Claim 5
Dependent Claim
148 words
A tube carrier for use with externally shouldered sample tubes having indexing means and a centrifuge rotor adapted to rotate about its vertical axis and having formed therein a plurality of symmetrically disposed vertical slots in its outer peripheral surface, said slots formed in the shape of a "T" and adapted for sliding engagement with a tube carrier, said carrier comprising: a vertically elongated member having a T-shaped cross section adapted for sliding engagement with the slots of said rotor; a plurality of circular recesses intersecting said carrier radially of said vertical axis of said rotor and at an angle thereto; a concentric counterbore joining each of said recesses on the side nearest said vertical axis of said rotor; a longitudinal slot extending the length of said counterbore adapted for engagement with said indexing means of said sample tube to orient said tube on insertion into a recess.
Claim 6
Dependent Claim
22 words
The carrier of claim 3 wherein said indexing means of said sample tube comprises the hinge portion of a hinged tube cap.
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) | 1986-02-28 | 1986-08-30 | 1987-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-28 | 1990-08-30 | 1991-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-28 | 1994-08-30 | 1995-03-01 | $7700.00 | Window Closed / Lapsed |