US4214993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating fluids
Assignee: Sorvall Products LP
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Filing: 1978-04-03
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Granted: 1980-07-29
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Expires: 1998-04-03
Abstract
Abstract An apparatus for separating fluids is formed essentially of three pieces which may be nested together to form a stacked array. The three pieces are a cap, an extraction cartridge housing a separating column, and a primary recovery cup. A secondary recovery cup may also be nested onto the lower end of the waste cup. The primary recovery cup has interior flanges for positioning and protecting the bottom end of the column against damage. Each of the elements has an enlarged upper portion forming an exterior step which facilitates mounting in the swinging bucket of a centrifuge. The column itself may comprise particles of a suitable separatory material with the top and the bottom of the particles retained by porous supports.
Inventors
- 👤 Jesse G. Forsythe, Jr.
- 👤 Donald R. Johnson
- 👤 Linda M. St. Onge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:27
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; B01L3/5021; G; G01; G01N; G01N30/00; G01N30/02; G01N30/60; G01N30/6091
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
185 words
Apparatus for processing fluids comprising, in combination, an extraction cartridge having an enlarged middle portion, tapered inward toward its lower end, adapted to receive said fluids and a tubular lower portion communicating with said middle portion, separating column material disposed in said lower portion, the bottom end of said lower portion defining a nozzle for fluids passing through said lower portion, a first container, the interior lower end of said container defining longitudinal interiorly extending radial guides for positioning said lower portion of said extraction cartridge and protecting said nozzle, the top portion of each of said extraction cartridge and said first container defining enlarged sections of equal inside diameter, a closure member insertable into the top end of either said extraction cartridge or said first container, said extraction cartridge middle portion and said first container each formed to have a mating taper to permit the nesting and sealing of said cartridge in said container, whereby said separating column material and said nozzle are protected and sealed when said closure member is inserted in said cartridge and said cartridge is nested in said first container.
Claim 2
Dependent Claim
185 words
Apparatus for processing fluids comprising, in combination, an extraction cartridge having an enlarged middle portion, tapered inward toward its lower end, adapted to receive said fluids and a tubular lower portion communicating with said middle portion, separating column material disposed in said lower portion, the bottom end of said lower portion defining a nozzle for fluids passing through said lower portion, a first container, the interior lower end of said container defining longitudinal interiorly extending radial guides for positioning said lower portion of said extraction cartridge and protecting said nozzle, the top portion of each of said extraction cartridge and said first container defining enlarged sections of equal inside diameter, a closure member insertable into the top end of either said extraction cartridge or said first container, said extraction cartridge middle portion and said first container each formed to have a mating taper to permit the nesting and sealing of said cartridge in said container, whereby said separating column material and said nozzle are protected and sealed when said closure member is inserted in said cartridge and said cartridge is nested in said first container.
Claim 3
Dependent Claim
55 words
The apparatus of claim 1 wherein said separating column material contains particles sized to essentially inhibit a fluid flow under the influence of a centrifugal force of one X gravity, but which permits controlled flow to effect extraction of constituents of said fluid under the influence of a centrifugal force greater than one X gravity.
Claim 4
Dependent Claim
33 words
The apparatus of claim 2 which also includes a second container formed to have a mating taper with said first container to permit the nesting of said first container in said second container.
Claim 5
Dependent Claim
26 words
The apparatus of claim 3 wherein a porous sphere is positioned at either end of said separating column material for retention thereof in said lower portion.
Claim 6
Dependent Claim
15 words
The apparatus of claim 4 wherein said separating column material is an ion exchange resin.
Claim 7
Dependent Claim
49 words
The apparatus of claim 5 wherein the top portion of said container defines an enlarged section having an inside diameter equal to the inside diameter of said first container, said enlarged sections define respective exterior step portions which are useable for suspending said cartridge and said containers for centrifugation.
Claim 8
Dependent Claim
26 words
The apparatus of claim 1 wherein said enlarged sections define respective exterior step portions which are useable for suspending said cartridge and said container for centrifugation.
Claim 9
Dependent Claim
33 words
The apparatus of claim 1 which also includes a second container formed to have a mating taper with said first container to permit the nesting of said first container in said second container.
Claim 10
Dependent Claim
56 words
The apparatus of claim 1 wherein the lower portion of said cartridge includes means to essentially inhibit a fluid flow under the influence of a centrifugal force of one X gravity, but which permits controlled flow to effect extraction of constituents of said fluid under the influence of a centrifugal force greater than one X gravity.
Claim 11
Dependent Claim
30 words
The apparatus of claim 1 wherein said separating column material contains particles sized to essentially inhibit fluid flow unless under the influence of a head of more than 1/4 bar.
Claim 12
Dependent Claim
28 words
The apparatus of claim 1 wherein said separating column contains means to essentially inhibit fluid flow unless under the influence of a head of more than 1/4 bar.
Claim 13
Dependent Claim
19 words
The apparatus of claim 1 wherein a filtration medium is disposed in said extraction cartridge above said column material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-29 | 1984-01-28 | 1984-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-29 | 1988-01-28 | 1988-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-29 | 1992-01-28 | 1992-07-29 | $7700.00 | Window Closed / Lapsed |