US3578240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receptacle holder for centrifuges
Assignee: Individual
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Filing: 1969-04-14
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Granted: 1971-05-11
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Expires: 1989-04-14
Abstract
Abstract A holder for a receptacle such as a blood-containing receptacle which is to be centrifuged. The holder includes an outer wall structure which is lined by an inner flexible lining. The outer wall structure is formed with axial bores in which hydraulic pistons are respectively slidable. The outer wall structure and the flexible liner define between themselves a chamber of a predetermined configuration for receiving a compensating hydraulic liquid which is acted upon by the pistons which slide in the bores in response to centrifugal forces which are present during the centrifuging operations. With this construction the configuration of the chamber is such that the hydraulic liquid is displaced by the pistons during centrifuging in such a way that horizontal and radial forces which otherwise would act on the receptacle during centrifuging thereof are eliminated with the compensating hydraulic liquid.
Inventors
- 👤 Gunter Eberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:27
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; B01L3/5021; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B04B5/0414; B04B5/0421; B04B7/00; B04B7/08; G; G10; G10K; G10K1/00; G10K1/06; G10K1/062; G10K1/063; G10K1/064; G10K1/0645; H; H03; H03J; H03J1/00; H03J1/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
A holder for a receptacle such as a blood-containing receptacle which is to be centrifuged, comprising outer wall means and inner flexible liner means surrounded by and engaging an inner surface of said outer wall means, said outer wall means being formed with axial bores, a plurality of hydraulic piston means respectively slidable in said axial bores, and said outer wall means and liner means defining between themselves a chamber of a predetermined configuration for receiving hydraulic liquid displaced into said chamber upon centrifugal displacement of said pistons in said bores during centrifuging of a receptacle placed within said liner means, said pistons, outer wall means, and liner means coacting to eliminate axial and radial forces which otherwise would act on the receptacle duriNg centrifuging thereof.
Claim 2
Dependent Claim
126 words
A holder for a receptacle such as a blood-containing receptacle which is to be centrifuged, comprising outer wall means and inner flexible liner means surrounded by and engaging an inner surface of said outer wall means, said outer wall means being formed with axial bores, a plurality of hydraulic piston means respectively slidable in said axial bores, and said outer wall means and liner means defining between themselves a chamber of a predetermined configuration for receiving hydraulic liquid displaced into said chamber upon centrifugal displacement of said pistons in said bores during centrifuging of a receptacle placed within said liner means, said pistons, outer wall means, and liner means coacting to eliminate axial and radial forces which otherwise would act on the receptacle duriNg centrifuging thereof.
Claim 3
Dependent Claim
48 words
The combination of claim 1 and wherein said piston means include spring means situated in each of said bores for displacing the hydraulic piston therein to a given rest position, so as to eliminate axial and radial compensating forces which are applied to the receptacle during centrifuging thereof.
Claim 4
Dependent Claim
23 words
The combination of claim 1 and wherein said liner means has a wall provided with different portions which are respectively of different thickness.
Claim 5
Dependent Claim
42 words
The combination of claim 1 and wherein the chamber defined between said outer wall means and liner means and the parts of said bores which extend from said chamber up to said pistons all define a closed space for the compensating liquid.
Claim 6
Dependent Claim
54 words
The combination of claim 1 and wherein said pistons, outer wall means, and liner means are respectively interchangeable with other pistons, outer wall means, and liner means for changing such features as the volume of said bores, the weights of said pistons, and configuration of said chamber so as to control the compensating forces.
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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |