Patent US4155846A successfully refreshed from Google Patents.
US4155846A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-segmented adsorption ion exchange or gell filtration column apparatus and process
Assignee: Individual
•
Filing: 1977-10-19
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Granted: 1979-05-22
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Expires: 1997-10-19
Abstract
Abstract A process and apparatus for chromatic separation of components by flowing fluid in contact with material wherein the fluid flows downwardly through a column comprising a plurality of contacting chambers each of which contain material to be contacted, and wherein each of the chambers are selectively subjected to treatment by said fluid, the material preferably comprising adsorptive, gel or ion exchange substances, or the like, and filtration material for purification and as a continuous or discontinuous process.
Inventors
- 👤 Leo J. Novak
- 👤 Paul H. Bowdle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:57
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/60; G01N30/6052; G01N30/6069; G01N30/6082
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
105 words
A process for contacting eluting fluid with particulate material to effect chromatic separation and/or purification of the same comprising the steps of causing the eluting fluid to flow through a column having a plurality of sequentially arranged segmented chambers, each chamber containing material to be contacted with eluting fluid, and wherein the material is disposed between screen members in the chambers, the flow of eluting fluid being permitted to pass through the screen members while inhibiting the passage of particulate material being contacted with eluting fluid, said eluting fluid being arranged to flow exclusively and/or selectively in or out of each of the segmented chambers.
Claim 2
Dependent Claim
105 words
A process for contacting eluting fluid with particulate material to effect chromatic separation and/or purification of the same comprising the steps of causing the eluting fluid to flow through a column having a plurality of sequentially arranged segmented chambers, each chamber containing material to be contacted with eluting fluid, and wherein the material is disposed between screen members in the chambers, the flow of eluting fluid being permitted to pass through the screen members while inhibiting the passage of particulate material being contacted with eluting fluid, said eluting fluid being arranged to flow exclusively and/or selectively in or out of each of the segmented chambers.
Claim 3
Dependent Claim
38 words
The process as set forth in claim 1 wherein the process is applied to the purification of material selected from the group consisting of proteins, amino acid mixtures, enzymes, and complex biological and macromolecular mixtures requiring purification treatment.
Claim 4
Dependent Claim
40 words
The process as set out in claim 1 wherein the contacting eluting fluid contacts material disposed in a pluraltiy of segmented chambers of the column with eluting fluid being arranged to flow exclusively in or out of each segmented chambers.
Claim 5
Dependent Claim
16 words
The process of claim 3 wherein the segmented chambers contain preselected adsorptive ion exchange gel material.
Claim 6
Dependent Claim
33 words
The process of claim 1 wherein the material to be contacted comprises more than one type of segment chamber material for simultaneous and continuous treatment of the segmented chamber materials in the column.
Claim 7
Dependent Claim
12 words
The process of claim 1 wherein the product being eluted contains urokinase.
Claim 8
Dependent Claim
16 words
The process of claim 5 wherein the material of the segmented chamber comprises ion exchange resin.
Claim 9
Dependent Claim
109 words
Apparatus for contacting eluting fluid with materials which comprises a vertically arranged segmented chromatic column, a plurality of materials contacting chambers providing a multisegmented column, means comprising a valve controlled passageway extending through the column for passing said fluid to the chambers, a three-way valve plug means for controlling the flow of contacting fluid to each of said chambers, said chambers comprising screen means positioned on the top and bottom of the chambers of the multisegmented column, said valve plug means being shaped to provide a cavity adjacent said screen means for the removal of air bubbles therefrom, and means for selectively collecting fluid from each of said chambers.
Claim 10
Dependent Claim
109 words
Apparatus for contacting eluting fluid with materials which comprises a vertically arranged segmented chromatic column, a plurality of materials contacting chambers providing a multisegmented column, means comprising a valve controlled passageway extending through the column for passing said fluid to the chambers, a three-way valve plug means for controlling the flow of contacting fluid to each of said chambers, said chambers comprising screen means positioned on the top and bottom of the chambers of the multisegmented column, said valve plug means being shaped to provide a cavity adjacent said screen means for the removal of air bubbles therefrom, and means for selectively collecting fluid from each of said chambers.
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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) | 1982-05-21 | 1982-11-20 | 1983-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-21 | 1986-11-20 | 1987-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-21 | 1990-11-20 | 1991-05-22 | $7700.00 | Window Closed / Lapsed |