US4135660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable tube rack carrier
Assignee: Beckman Coulter Inc
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Filing: 1977-06-20
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Granted: 1979-01-23
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Expires: 1997-06-20
Abstract
Abstract A pivotal carrier for use in centrifuge rotors wherein the ends of the rotor carriers are adjustable to vary the supporting or receiving surface area in the carrier to accommodate various sized tube racks which may be used in the centrifuge rotor. Holding members in opposite ends of each carrier are movable to a plurality of positions to symmetrically position the tube rack within the carrier to maintain dynamic rotor balance.
Inventors
- 👤 Thomas E. Conn
- 👤 Victor J. Grilli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:53
CPC Classifications
B; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0414; B04B5/0421; B01; B01L; B01L9/00; B01L9/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
76 words
A centrifuge rotor for carrying test tube racks comprising: at least two carriers, each pivotally mounted on said rotor; and a pair of removable U-shaped clips located in said carrier, said carrier having a series of adjustment holes to provide variable positions for said clips within said carriers for adjusting the length of the receiving area in said carriers for said racks to accommodate various length racks and hold said racks symmetrically positioned on said carriers.
Claim 2
Dependent Claim
76 words
A centrifuge rotor for carrying test tube racks comprising: at least two carriers, each pivotally mounted on said rotor; and a pair of removable U-shaped clips located in said carrier, said carrier having a series of adjustment holes to provide variable positions for said clips within said carriers for adjusting the length of the receiving area in said carriers for said racks to accommodate various length racks and hold said racks symmetrically positioned on said carriers.
Claim 3
Dependent Claim
54 words
A centrifuge rotor as defined in claim 1, wherein each of said pair of clips being positioned at opposite ends of said carrier and wherein each of said carriers has a support slot for each of said clips to retain the plane of said clips in an orientation generally parallel to said receiving area.
Claim 4
Dependent Claim
102 words
A centrifuge rotor for carrying test tube racks comprising: at least two carriers pivotally attached to said rotor, each of said carriers having opposite open ends; a pair of spring biased holding members, each adjustably positioned adjacent said opposite open ends of said carriers; means within said carriers for retaining said holding members in a generally parallel orientation with the support base of each of said carriers; and means located in said carrier for receiving said holding members, said receiving means providing a plurality of selectible positions for said holding members, so that said carrier can accommodate various sized test tube racks.
Claim 5
Dependent Claim
102 words
A centrifuge rotor for carrying test tube racks comprising: at least two carriers pivotally attached to said rotor, each of said carriers having opposite open ends; a pair of spring biased holding members, each adjustably positioned adjacent said opposite open ends of said carriers; means within said carriers for retaining said holding members in a generally parallel orientation with the support base of each of said carriers; and means located in said carrier for receiving said holding members, said receiving means providing a plurality of selectible positions for said holding members, so that said carrier can accommodate various sized test tube racks.
Claim 6
Dependent Claim
84 words
A centrifuge rotor for carrying test tube racks comprising: at least two carriers, each pivotally mounted on said rotor; and a pair of holding members selectively positioned at opposite ends of each of said carriers; and a series of adjustment apertures within each of said carriers for selective receipt of said holding members, said carriers accommodating and supporting various length tube racks in a secure symmetrical location on said carriers by selectively securing said holding members in one of said series of adjustment apertures.
Claim 7
Dependent Claim
84 words
A centrifuge rotor for carrying test tube racks comprising: at least two carriers, each pivotally mounted on said rotor; and a pair of holding members selectively positioned at opposite ends of each of said carriers; and a series of adjustment apertures within each of said carriers for selective receipt of said holding members, said carriers accommodating and supporting various length tube racks in a secure symmetrical location on said carriers by selectively securing said holding members in one of said series of adjustment apertures.
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) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |