US3905528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-piece concentric centrifuge sample container
Assignee: Individual
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Filing: 1974-04-10
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Granted: 1975-09-16
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Expires: 1994-04-10
Abstract
Abstract The invention provides a container assembly for use in conjunction with centrifuges of the normal or axial type. The assembly includes a pair of telescopically engageable containers in fluid communication via a conduit extending coaxially from the base of the outer container through the base of the inner container. Component phases of a fluid mixture within the inner container may be separated by withdrawing the inner container from the outer container until the conduit opening communicates with the appropriate component phase, and fluid is permitted to flow through the conduit into the outer container.
Inventors
- 👤 Hugh V Maiocco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:30
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; B01L3/5021; B04; B04B; B04B5/00; B04B5/04; B04B5/0407; B01L2300/00; B01L2300/06; B01L2300/0681
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
104 words
In a centrifuge, a container assembly for containing a fluid mixture during centrifugation and for separating phases of said fluid mixture resulting from centrifugation, said container assembly comprising a. an outer container; b. an inner container, telescopically engageable with said outer container, and having an opening in the base thereof; c. a conduit threadably secured to the base of said outer container and communicating said outer container with said inner container through said opening in the base of said inner Container; and d. sealing means for preventing fluid leakage into said outer container from said inner container through said opening in the base thereof.
Claim 2
Dependent Claim
104 words
In a centrifuge, a container assembly for containing a fluid mixture during centrifugation and for separating phases of said fluid mixture resulting from centrifugation, said container assembly comprising a. an outer container; b. an inner container, telescopically engageable with said outer container, and having an opening in the base thereof; c. a conduit threadably secured to the base of said outer container and communicating said outer container with said inner container through said opening in the base of said inner Container; and d. sealing means for preventing fluid leakage into said outer container from said inner container through said opening in the base thereof.
Claim 3
Dependent Claim
17 words
The invention of claim 1, wherein said conduit has an irregular circumference and said opening conforms thereto.
Claim 4
Dependent Claim
94 words
A container assembly including separating means for separating phases of a fluid mixture contained therein, said container assembly comprising a. an outer container; b. an inner container, telescopically engageable with said outer container, and having an opening in the base thereof; c. a conduit threadably secured to the base of said outer container and communicating said outer container with said inner container through said opening in the base of said inner container; and sealing means for preventing fluid leakage into said outer container from said inner container through said opening in the base thereof.
Claim 5
Dependent Claim
94 words
A container assembly including separating means for separating phases of a fluid mixture contained therein, said container assembly comprising a. an outer container; b. an inner container, telescopically engageable with said outer container, and having an opening in the base thereof; c. a conduit threadably secured to the base of said outer container and communicating said outer container with said inner container through said opening in the base of said inner container; and sealing means for preventing fluid leakage into said outer container from said inner container through said opening in the base thereof.
Claim 6
Dependent Claim
40 words
The invention of claim 3, wherein said conduit has an irregular circumference and said opening conforms thereto so that substantial relative rotation of the inner container with respect to the conduit does not occur when said inner container is rotated.
Claim 7
Dependent Claim
25 words
The invention of claim 4, wherein said conduit communicates said inner container with said outer container via apertures in the distal and proximal portions thereof.
Claim 8
Dependent Claim
165 words
In a container assembly comprising a. an outer container; b. an inner container, telescopically engageable with said outer container, and having an opening in the base thereof; c. a conduit threadably secured to the base of said outer container and communicating said outer container with said inner container through said opening in the base thereof; and d. sealing means for preventing fluid leakage into said outer container from said inner container through said opening in the base thereof; a method for separating the component phases of a fluid mixture contained in said inner container comprising: i. withdrawing said inner container from said outer container until fluid of the less dense phase flows into said conduit and enters said outer container; ii. continuing to withdraw said inner container from said outer container until the desired amount of fluid has entered said outer container; and iii. disengaging said conduit from said base of the outer container and removing said conduit and said inner container as a unit.
Claim 9
Dependent Claim
165 words
In a container assembly comprising a. an outer container; b. an inner container, telescopically engageable with said outer container, and having an opening in the base thereof; c. a conduit threadably secured to the base of said outer container and communicating said outer container with said inner container through said opening in the base thereof; and d. sealing means for preventing fluid leakage into said outer container from said inner container through said opening in the base thereof; a method for separating the component phases of a fluid mixture contained in said inner container comprising: i. withdrawing said inner container from said outer container until fluid of the less dense phase flows into said conduit and enters said outer container; ii. continuing to withdraw said inner container from said outer container until the desired amount of fluid has entered said outer container; and iii. disengaging said conduit from said base of the outer container and removing said conduit and said inner container as a unit.
Claim 10
Dependent Claim
47 words
The invention of claim 6, wherein said opening in the base of said inner container is irregular and the circumference of the conduit conforms thereto, and wherein said conduit is disengaged from the base of said outer container by rotating said inner container in the appropriate direction.
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) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |