US4589864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge rotor having a resilient trunnion
Assignee: Sorvall Products LP
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Filing: 1984-11-05
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Granted: 1986-05-20
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Expires: 2004-11-05
Abstract
Abstract A centrifuge rotor is provided in which an array of loops is circumferentially provided about the exterior of the hub. The loops have openings therein which receive a hook-like appurtenance mounted on a sample container and support the same for pivotal rotation from first to second position. The loops are resiliently mounted to the hub such that increased centrifugal force is accommodated by radially outward deflection of loops. The loops may be torsioned to untwist as the carrier pivots from the first to the second position.
Inventors
- 👤 Paul M. Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:58
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0414; B04B5/0421
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
134 words
A swinging bucket centrifuge rotor for supporting a sample container having a hooked end through angular rotation from a first position in which the axis of the sample container lies substantially parallel to the rotor axis of rotation to a second position in which the axis of the container lies substantially perpendicularly thereto, the rotor comprising: a central hub connectable to a source of motive energy; and, a looped member mounted to the hub, the looped member having an opening therein sized to receive the hooked end of the container and support the same for movement from the first to the second position, the opening defined by the looped member lying in a plane that defines a predetermined angle with respect to the axis of rotation when the container is in the second position.
Claim 2
Dependent Claim
134 words
A swinging bucket centrifuge rotor for supporting a sample container having a hooked end through angular rotation from a first position in which the axis of the sample container lies substantially parallel to the rotor axis of rotation to a second position in which the axis of the container lies substantially perpendicularly thereto, the rotor comprising: a central hub connectable to a source of motive energy; and, a looped member mounted to the hub, the looped member having an opening therein sized to receive the hooked end of the container and support the same for movement from the first to the second position, the opening defined by the looped member lying in a plane that defines a predetermined angle with respect to the axis of rotation when the container is in the second position.
Claim 3
Dependent Claim
32 words
The rotor of claim 1 wherein the looped member is resilient so that when in the second position increased centrifugal force is accommodated by the radially outwardly deflection of the looped member.
Claim 4
Dependent Claim
69 words
The rotor of claim 2 wherein the hub has a first and a second groove formed therein, each groove having a first end and a second end with one end of the first groove being circumferentially adjacent to one end of the second groove, the looped member being received within the grooves such that the looped member projects through the circumferentially adjacent ends of the first and second grooves.
Claim 5
Dependent Claim
39 words
The rotor of claim 3 wherein rotation of the rotor causes the sample container to pivot from the first to the second position on an interface defined between the hooked end of the sample container and the looped member.
Claim 6
Dependent Claim
41 words
The rotor of claim 3 wherein, in the first position, the sample container twists the looped member such that as the rotor rotates pivotal movement of the sample container to the second position is accommodated by untwisting of the looped member.
Claim 7
Dependent Claim
25 words
The rotor of claim 3 wherein, upon rotation of the rotor, pivotal movement of the sample container to the second position twists the looped member.
Claim 8
Dependent Claim
39 words
The rotor of claim 2 wherein rotation of the rotor causes the sample container to pivot from the first to the second position on an interface defined between the hooked end of the sample container and the looped member.
Claim 9
Dependent Claim
41 words
The rotor of claim 7 wherein, in the first position, the sample container twists the looped member such that as the rotor rotates pivotal movement of the sample container to the second position is accomodated by untwisting of the looped member.
Claim 10
Dependent Claim
25 words
The rotor of claim 7 wherein, upon rotation of the rotor, pivotal movement of the sample container to the second position twists the looped member.
Claim 11
Dependent Claim
41 words
The rotor of claim 2 wherein, in the first position, the sample container twists the looped member such that as the rotor rotates pivotal movement of the sample container to the second position is accommodated by untwisting of the looped member.
Claim 12
Dependent Claim
30 words
The rotor of claim 10 wherein the pivotal movement of each sample container occurs without relative movement between the sample container and the looped member on which it is received.
Claim 13
Dependent Claim
25 words
The rotor of claim 2 wherein, upon rotation of the rotor, pivotal movement of the sample container to the second position twists the looped member.
Claim 14
Dependent Claim
30 words
The rotor of claim 12 wherein the pivotal movement of each sample container occurs without relative movement between the sample container and the looped member on which it is received.
Claim 15
Dependent Claim
40 words
The rotor of claim 1 wherein the looped member is defined by a resilient ring mounted to the rotor so that when in the second position increased centrifugal force is accommodated by the radially outwardly deflection of the looped member.
Claim 16
Dependent Claim
120 words
The rotor of claim 14 wherein the rotor has a predetermined number of pockets each sized to receive a sample container therein and wherein the hub has the same predetermined number of grooves formed therein, each groove having a first end and a second end with the first end of each groove being circumferentially adjacent to the second end of the circumferentially adjacent groove, the resilient ring being received within the grooves such that predetermined portions of the resilient ring project from the hub through the adjacent circumferential ends of circumferentially adjacent grooves to define the predetermined number of loops each one of which projects into a pocket and is adapted to receive the hooked end of a sample container.
Claim 17
Dependent Claim
41 words
The rotor of claim 15 wherein the rotor causes each sample container to pivot from the first to the second position on an interface defined between the hooked end of a sample container and the loop on which it is received.
Claim 18
Dependent Claim
46 words
The rotor of claim 15 wherein, in the first position, the sample container twists the looped member on which it is received such that as the rotor rotates pivotal movement of the sample container to the second position is accommodated by untwisting of the looped member.
Claim 19
Dependent Claim
30 words
The rotor of claim 17 wherein the pivotal movement of each sample container occurs without relative movement between the sample container and the looped member on which it is received.
Claim 20
Dependent Claim
30 words
The rotor of claim 15 wherein, upon rotation of the rotor, pivotal movement of each sample container to the second position twists the looped member on which it is received.
Claim 21
Dependent Claim
30 words
The rotor of claim 19 wherein the pivotal movement of each sample container occurs without relative movement between the sample container and the looped member on which it is received.
Claim 22
Dependent Claim
39 words
The rotor of claim 14 wherein rotation of the rotor causes the sample container to pivot from the first to the second position on an interface defined between the hooked end of the sample container and the looped member.
Claim 23
Dependent Claim
41 words
The rotor of claim 21 wherein, in the first position, the sample container twists the looped member such that as the rotor rotates pivotal movement of the sample container to the second position is accomodated by untwisting of the looped member.
Claim 24
Dependent Claim
25 words
The rotor of claim 21 wherein, upon rotation of the rotor, pivotal movement of the sample container to the second position twists the looped member.
Claim 25
Dependent Claim
41 words
The rotor of claim 14 wherein, in the first position, the sample container twists the looped member such that as the rotor rotates pivotal movement of the sample container to the second position is accommodated by untwisting of the looped member.
Claim 26
Dependent Claim
25 words
The rotor of claim 24 wherein the pivotal movement of the sample container occurs without relative movement between the sample container and the looped member.
Claim 27
Dependent Claim
25 words
The rotor of claim 14 wherein, upon rotation of the rotor, pivotal movement of the sample container to the second position twists the looped member.
Claim 28
Dependent Claim
30 words
The rotor of claim 26 wherein the pivotal movement of each sample container occurs without relative movement between the sample container and the looped member on which it is received.
Claim 29
Dependent Claim
69 words
The rotor of claim 1 wherein the hub has a first and a second groove formed therein, each groove having a first end and a second end with one end of the first groove being circumferentially adjacent to one end of the second groove, the looped member being received within the grooves such that the looped member projects through the circumferentially adjacent ends of the first and second grooves.
Claim 30
Dependent Claim
39 words
The rotor of claim 28 wherein rotation of the rotor causes the sample container to pivot from the first to the second position on an interface defined between the hooked end of the sample container and the looped member.
Claim 31
Dependent Claim
41 words
The rotor of claim 28 wherein, in the first position, the sample container twists the looped member such that as the rotor rotates pivotal movement of the sample container to the second position is accommodated by untwisting of the looped member.
Claim 32
Dependent Claim
25 words
The rotor of claim 28 wherein, upon rotation of the rotor, pivotal movement of the sample container to the second position twists the looped member.
Claim 33
Dependent Claim
39 words
The rotor of claim 1 wherein rotation of the rotor causes the sample container to pivot from the first to the second position on an interface defined between the hooked end of the sample container and the looped member.
Claim 34
Dependent Claim
41 words
The rotor of claim 32 wherein, in the first position, the sample container twists the looped member such that as the rotor rotates pivotal movement of the sample container to the second position is accomodated by untwisting of the looped member.
Claim 35
Dependent Claim
25 words
The rotor of claim 32 wherein, upon rotation of the rotor, pivotal movement of the sample container to the second position twists the looped member.
Claim 36
Dependent Claim
41 words
The rotor of claim 1 wherein, in the first position, the sample container twists the looped member such that as the rotor rotates pivotal movement of the sample container to the second position is accommodated by untwisting of the looped member.
Claim 37
Dependent Claim
25 words
The rotor of claim 35 wherein the pivotal movement of the sample container occurs without relative movement between the sample container and the looped member.
Claim 38
Dependent Claim
25 words
The rotor of claim 1 wherein, upon rotation of the rotor, pivotal movement of the sample container to the second position twists the looped member.
Claim 39
Dependent Claim
25 words
The rotor of claim 37 wherein the pivotal movement of the sample container occurs without relative movement between the sample container and the looped member.
References Cited (Backward Citations)
US3752390A
Cited
US3877634A
Cited
US4254905A
Cited
US4190195A
Cited
US4344563A
Cited
US4400166A
Cited
US4431423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |