US4314824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Programmable, continuous flow analyzer
Assignee: BIFOK AB
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Filing: 1980-05-06
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Granted: 1982-02-09
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Expires: 2000-05-06
Abstract
Abstract Method and device for continuous flow-through analysis with a non-segmented laminar carrier flow, to which reagents are added at programmable intervals. The programming can be done by switching in various loops with valves, interchangeable connections or by composing the apparatus of different prefabricated modules to produce the desired reaction conditions.
Inventors
- 👤 Elo H. Hansen
- 👤 Jaromir Ruzicka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:33
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/08; G01N35/085; G01N2035/00465; G01N2035/00534; Y; Y10; Y10T; Y10T436/00; Y10T436/11; Y10T436/117497
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
89 words
A method of preparing a sample for treatment in which a continuous flow of liquid carrier receives sample portions, said method comprising: passing said carrier through a conduit in a manner such that flow of said carrier is laminar, unsegmented and continuous, introducing sample portions into said carrier, controlling dispersion of said sample portion in said carrier by varying at least one of the following: the volume of said sample portion, the flow velocity of said carrier, or the dimensions of said conduit conducting said sample and said carrier.
Claim 2
Independent Claim
89 words
A method of preparing a sample for treatment in which a continuous flow of liquid carrier receives sample portions, said method comprising: passing said carrier through a conduit in a manner such that flow of said carrier is laminar, unsegmented and continuous, introducing sample portions into said carrier, controlling dispersion of said sample portion in said carrier by varying at least one of the following: the volume of said sample portion, the flow velocity of said carrier, or the dimensions of said conduit conducting said sample and said carrier.
Claim 3
Dependent Claim
32 words
The method of claim 1 wherein dispersion of said sample portion and said carrier is controlled by varying the length of the conduit through which said sample and said carrier is passed.
Claim 4
Dependent Claim
23 words
The method of claim 1 wherein dispersion of said sample portion and said carrier is controlled by varying the diameter of said conduit.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein dispersion of said sample portion and said carrier is controlled by varying the volume of said sample.
Claim 6
Independent Claim
96 words
A method of treating a sample in which a continuous flow of a liquid carrier receives sample portions, said method comprising: passing said carrier through a conduit in a manner such that flow of said carrier is laminar, unsegmented and continuous, controlling dispersion of said sample portions in said carrier by varying at least one of the following: the volume of said sample portion, the flow velocity of said carrier, the dimensions of said conduit conducting said sample and said carrier; and introducing a treatment material into said sample as it is carried through said conduit.
Claim 7
Independent Claim
96 words
A method of treating a sample in which a continuous flow of a liquid carrier receives sample portions, said method comprising: passing said carrier through a conduit in a manner such that flow of said carrier is laminar, unsegmented and continuous, controlling dispersion of said sample portions in said carrier by varying at least one of the following: the volume of said sample portion, the flow velocity of said carrier, the dimensions of said conduit conducting said sample and said carrier; and introducing a treatment material into said sample as it is carried through said conduit.
Claim 8
Dependent Claim
18 words
The method of claim 5 wherein the treatment material is a reagent which chemically reacts with said sample.
Claim 9
Independent Claim
64 words
An apparatus for continuous flowthrough treatment of samples comprising: a main conduit for conducting a liquid carrier, said conduit being disposed to conduct said carrier in a manner such that the flow of said carrier is laminar, unsegmented and continuous, means for inserting sample plugs into said carrier at controlled intervals, and means for controlling the dispersion of said sample plugs in said carrier.
Claim 10
Independent Claim
64 words
An apparatus for continuous flowthrough treatment of samples comprising: a main conduit for conducting a liquid carrier, said conduit being disposed to conduct said carrier in a manner such that the flow of said carrier is laminar, unsegmented and continuous, means for inserting sample plugs into said carrier at controlled intervals, and means for controlling the dispersion of said sample plugs in said carrier.
Claim 11
Independent Claim
74 words
An apparatus for continuous flowthrough treatment of a sample comprising: a main conduit for conducting a liquid carrier, said conduit being disposed to conduct said carrier in a manner such that the flow of said carrier is laminar, unsegmented and continuous; means for inserting sample plugs into said carrier at controlled intervals; means for introducing a treatment material into said carrier; and means for controlling the dispersion of said sample plugs in said carrier.
Claim 12
Independent Claim
74 words
An apparatus for continuous flowthrough treatment of a sample comprising: a main conduit for conducting a liquid carrier, said conduit being disposed to conduct said carrier in a manner such that the flow of said carrier is laminar, unsegmented and continuous; means for inserting sample plugs into said carrier at controlled intervals; means for introducing a treatment material into said carrier; and means for controlling the dispersion of said sample plugs in said carrier.
Claim 13
Dependent Claim
24 words
The method of claim 1 wherein dispersion of said sample portion and said carrier is controlled by varying the flow velocity of said carrier.
References Cited (Backward Citations)
US4224033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-08 | 1985-08-10 | 1986-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-08 | 1989-08-10 | 1990-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-08 | 1993-08-10 | 1994-02-09 | $7700.00 | Window Closed / Lapsed |