US4427406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional shaped liner for a centrifuge rotor
Assignee: Beckman Coulter Inc
•
Filing: 1982-03-22
•
Granted: 1984-01-24
•
Expires: 2002-03-22
Abstract
Abstract A one piece integrally formed sectional shaped liner for use in combination with similarly shaped sectional liners in a generally cylindrical chamber of a centrifuge rotor. The utilization of a plurality of similarly shaped plastic liners within a single rotor chamber allows for the placement of different fluid samples in a single rotor during one centrifuge run. The liners are designed in such a manner that they do not require a separate capping means and are preferably made through a blow molding process. The liners are designed to provide adjacent support to each other during the centrifugation run.
Inventors
- 👤 Steven T. Nielsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:18
CPC Classifications
B; B04; B04B; B04B7/00; B04B7/08; B04B7/12; B04B5/00; B04B5/04; B04B5/0407
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
136 words
A sectional shaped centrifuge rotor liner for placement in a single cylindrical cavity of a centrifuge rotor with other similarly shaped liners, said sectional shaped liner comprising: an apex edge formed by the junction of two walls of said liner, said apex edge of said liner being aligned with the spin axis of said rotor when said liner is placed in said rotor; and an annular side of said liner positioned adjacent the wall of said rotor cavity farthest from said spin axis, the portion of said liner adjacent said annular side holding more fluid sample than the portion of said liner adjacent said apex edge, so that the majority of the fluid sample within said liner will be displaced at some radial distance from said spin axis of said rotor when said rotor is operating.
Claim 2
Dependent Claim
136 words
A sectional shaped centrifuge rotor liner for placement in a single cylindrical cavity of a centrifuge rotor with other similarly shaped liners, said sectional shaped liner comprising: an apex edge formed by the junction of two walls of said liner, said apex edge of said liner being aligned with the spin axis of said rotor when said liner is placed in said rotor; and an annular side of said liner positioned adjacent the wall of said rotor cavity farthest from said spin axis, the portion of said liner adjacent said annular side holding more fluid sample than the portion of said liner adjacent said apex edge, so that the majority of the fluid sample within said liner will be displaced at some radial distance from said spin axis of said rotor when said rotor is operating.
Claim 3
Dependent Claim
91 words
In combination, a plurality of centrifuge rotor liners designed for cooperative use with each other to fill a generally cylindrical cavity within a centrifuge rotor, each of said liners comprising at least two vertical walls which are oriented in such a manner that said walls intersect each other at the spin axis of said rotor when said each of said liners is placed in said rotor cavity, said vertical walls of PG,13 each liner being supported by the vertical walls of the other of said adjacent liners in said rotor cavity.
Claim 4
Dependent Claim
91 words
In combination, a plurality of centrifuge rotor liners designed for cooperative use with each other to fill a generally cylindrical cavity within a centrifuge rotor, each of said liners comprising at least two vertical walls which are oriented in such a manner that said walls intersect each other at the spin axis of said rotor when said each of said liners is placed in said rotor cavity, said vertical walls of PG,13 each liner being supported by the vertical walls of the other of said adjacent liners in said rotor cavity.
Claim 5
Dependent Claim
32 words
A centrifuge rotor liner as defined in claims 1 or 2, wherein four of said liners are placed within said centrifuge rotor, each of said liners occupying one-fourth of said cylindrical cavity.
Claim 6
Dependent Claim
17 words
A centrifuge rotor liner as defined in claims 1 or 2, wherein said liner is sectorial shaped.
Claim 7
Dependent Claim
22 words
A centrifuge rotor liner as defined in claims 1 or 2, wherein said liner comprises an inner chamber and an outer chamber.
Claim 8
Dependent Claim
78 words
A centrifuge rotor assembly comprising: a rotor having a single cylindrical cavity; and a plurality of sample carrying rotor liners positioned within said cavity, each of said liners providing lateral support to adjacent liners within said rotor during centrifugation, each of said liners comprises a sectorial shaped container with a truncated wall spaced from the spin axis of said rotor leaving an annular space between said spin axis and said truncated walls of said plurality of rotor liners.
Claim 9
Dependent Claim
78 words
A centrifuge rotor assembly comprising: a rotor having a single cylindrical cavity; and a plurality of sample carrying rotor liners positioned within said cavity, each of said liners providing lateral support to adjacent liners within said rotor during centrifugation, each of said liners comprises a sectorial shaped container with a truncated wall spaced from the spin axis of said rotor leaving an annular space between said spin axis and said truncated walls of said plurality of rotor liners.
Claim 10
Dependent Claim
15 words
A centrifuge rotor assembly as defined in claim 6, wherein said truncated wall is flat.
Claim 11
Dependent Claim
23 words
A centrifuge rotor assembly as defined in claim 6, wherein said truncated wall has a generally convex shape projecting toward said spin axis.
Claim 12
Dependent Claim
89 words
A sectional shaped centrifuge rotor liner for placement in a single cylindrical cavity of a centrifuge rotor with at least one other similarly shaped liner, said liner comprising: at least one flat surface intersecting the spin axis of said rotor when placed in said rotor; and an annular side of said liner for mating and supporting contact with the cylindrical wall of said cavity of said rotor, said one flat surface being supported within said rotor by the flat surface of said other similarly shaped liner in said rotor.
Claim 13
Dependent Claim
89 words
A sectional shaped centrifuge rotor liner for placement in a single cylindrical cavity of a centrifuge rotor with at least one other similarly shaped liner, said liner comprising: at least one flat surface intersecting the spin axis of said rotor when placed in said rotor; and an annular side of said liner for mating and supporting contact with the cylindrical wall of said cavity of said rotor, said one flat surface being supported within said rotor by the flat surface of said other similarly shaped liner in said rotor.
Claim 14
Dependent Claim
66 words
A sectional shaped centrifuge rotor liner for placement in a single cylindrical chamber of a centrifuge rotor with at least one other similarly shaped liner, said liner comprising: at least one vertical flat surface; and at least one vertical curved surface, said flat surface contacting a flat surface of said similarly shaped liner when in said rotor, said contacting flat surfaces supporting each other during centrifugation.
Claim 15
Dependent Claim
66 words
A sectional shaped centrifuge rotor liner for placement in a single cylindrical chamber of a centrifuge rotor with at least one other similarly shaped liner, said liner comprising: at least one vertical flat surface; and at least one vertical curved surface, said flat surface contacting a flat surface of said similarly shaped liner when in said rotor, said contacting flat surfaces supporting each other during centrifugation.
Claim 16
Dependent Claim
126 words
A sectional shaped centrifuge rotor liner for placement in a single cylindrical cavity of a centrifuge rotor with other similarly shaped liners, said sectional shaped liner comprising: at least two vertical walls oriented in such a manner with respect to each other that a plane contiguous and parallel to the surface of one wall and a plane contiguous and parallel to the surface of the other wall intersect each other to form a line that is parallel and approximately coincident with the spin axis of said rotor when said liner is placed in said rotor; and a truncated wall spaced from said spin axis and joining said two vertical walls, said truncated wall forming a space between said liner and said spin axis within said rotor.
Claim 17
Dependent Claim
126 words
A sectional shaped centrifuge rotor liner for placement in a single cylindrical cavity of a centrifuge rotor with other similarly shaped liners, said sectional shaped liner comprising: at least two vertical walls oriented in such a manner with respect to each other that a plane contiguous and parallel to the surface of one wall and a plane contiguous and parallel to the surface of the other wall intersect each other to form a line that is parallel and approximately coincident with the spin axis of said rotor when said liner is placed in said rotor; and a truncated wall spaced from said spin axis and joining said two vertical walls, said truncated wall forming a space between said liner and said spin axis within said rotor.
References Cited (Backward Citations)
US3096283A
Cited
US3239136A
Cited
US3724747A
Cited
US4056225A
Cited
US4142670A
Cited
US4301963A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-23 | 1987-07-25 | 1988-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-23 | 1991-07-25 | 1992-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-23 | 1995-07-25 | 1996-01-24 | $7700.00 | Window Closed / Lapsed |