US3607079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Analysis arrangement for chemical analyzing apparatus
Assignee: Scientific Industries Inc
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Filing: 1969-06-02
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Granted: 1971-09-21
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Expires: 1989-06-02
Abstract
Abstract For use in a chemical-analyzing apparatus, a liquid sample analysis arrangement, comprising a liquid sample receiving, holding and transferring strip medium comprising an elongated tape having a plurality of spaced, uniformly dimensioned, liquid sample absorbing locations on one face thereof; and an analyzing strip medium comprising an elongated tape to which sample from the absorbent locations is transferred, and which analyzing medium has reagent applied to it to react with the transferred liquid sample; the analyzing apparatus comprising means for feeding and taking up the above noted strip mediums, means for dispensing liquid sample to the receiving medium, means for causing the transfer of liquid sample from the receiving to the analyzing medium and means for cooperating with the analyzing medium for analyzing the reaction between the reagent and the liquid sample. Alternatively, reagent can be caused to travel to the strip medium which has previously received liquid sample, instead of in the reverse direction and reaction on and analysis of this sample receiving medium will be performed.
Inventors
- 👤 Theodore Maxon
- 👤 Lowell A Kleiman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:42
CPC Classifications
G; G01; G01N; G01N35/00; G01N35/00009; Y; Y10; Y10T; Y10T436/00; Y10T436/11; Y10T436/110833
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
52 words
The system for chemical analysis of claim 1, wherein said receiving medium comprises a strip which includes a plurality of spaced-apart locations adapted to receive and hold sample and which are adapted to release the sample, thereby to transfer the sample to said analyzing medium; said analyzing medium also comprising a strip.
Claim 2
Dependent Claim
114 words
In combination, the system for chemical analysis of claim 2, and a chemical-analyzing apparatus; said chemical-analyzing apparatus comprising, means for holding and supplying each of said strip mediums; means for dispensing liquid sample to said receiving medium; superimposing means moving into contact with both said strip mediums after liquid sample has been applied to said receiving medium for superimposing said mediums, thereby to bring about transfer of sample from said receiving medium to said analyzing medium; analyzing means cooperating with said analyzing medium after transfer of sample to saiD analyzing medium has occurred and after a reaction between the transferred sample and the reagent on said analyzing medium has occurred to analyze the reaction.
Claim 3
Dependent Claim
50 words
The system for chemical analysis of claim 1, wherein said receiving medium includes at least one absorbent portion, which absorbent portion is adapted to receive and hold liquid sample and to be squeezed to release the sample from said absorbent portion, thereby to transfer the sample to said analyzing medium.
Claim 4
Dependent Claim
34 words
The system for chemical analysis of claim 4, wherein said analyzing medium is adapted to receive a reagent which reacts with the liquid sample transferred to said analyzing medium, thereby to analyze said sample.
Claim 5
Dependent Claim
42 words
The system for chemical analysis of claim 5, wherein said receiving medium comprises a strip on said face of which is positioned a plurality of spaced apart absorbent locations for serving as the sample receiving and holding portion of said receiving medium.
Claim 6
Dependent Claim
77 words
The system for chemical analysis of claim 6, wherein said absorbent locations each are adapted to receive and hold a uniform volume of liquid sample; each of said locations having its own said face which is adapted to be superimposed on said face of said analysis medium; each said face of said locations having uniform dimensions, whereby a uniform volume of sample may be transferred by and uniformly spread over said analysis medium by each said location.
Claim 7
Dependent Claim
115 words
In combination, the system for chemical analysis of claim 6, and a chemical analyzing apparatus; said chemical-analyzing apparatus comprising, means for holding and supplying each of said strip mediums; means for dispensing liquid sample to said receiving medium; superimposing means moving into contact with both said strip mediums after liquid sample has been applied to said receiving medium for superimposing said mediums, thereby to bring about transfer of sample from said receiving medium to said analyzing medium; analyzing means cooperating with said analyzing medium after transfer of sample to said analyzing medium has occurred and after a reaction between the transferred sample and the reagent on said analyzing medium has occurred to analyze the reaction.
Claim 8
Dependent Claim
22 words
The combination of claim 8, wherein said superimposing means squeezes said analyzing and said receiving mediums together to bring about sample transfer.
Claim 9
Dependent Claim
74 words
The combination of claim 8, wherein said absorbent locations each are adapted to receive and hold a uniform volume of liquid sample; each of said locations having its own said face which is adapted to be superimposed on said face of said analysis medium; each said face of said locations having uniform dimensions, whereby a uniform volume of sample may be transferred by and uniformly spread over said analysis medium by each said location.
Claim 10
Independent Claim
144 words
A system for chemical analysis comprising two strip mediums, one of which is a liquid sample receiving and holding medium, and the other of which is a reagent receiving and holding medium, the latter being for holding reagent which reacts with the liquid sample to produce an analyzable reaction; each said strip medium having a face which is adapted to be superimposed directly into contact with the said face of the other strip medium; said sample-receiving medium being adapted to receive, from a dispensing device, and to hold liquid sample to be analyzed; said reagent-receiving medium being adapted to receive and to hold reagent to be reacted with the liquid sample; one of said sample-receiving and said reagent-receiving mediums being adapted to transfer its contents to the other said medium, whereby the reaction between sample and reagent takes place on that other said medium.
Claim 11
Dependent Claim
29 words
The system for chemical analysis of claim 11, wherein said reagent-receiving medium is comprised of material which has the capacity to transfer its reagent contents to said sample-receiving medium.
Claim 12
Dependent Claim
52 words
The system for chemical analysis of claim 12, wherein said sample-receiving medium coMprises a strip which includes a plurality of spaced apart locations, each adapted to receive and hold liquid sample and to which the reagent on said reagent receiving and holding medium is transferred; said reagent-receiving medium also comprises a strip.
Claim 13
Dependent Claim
107 words
In combination, the system for chemical analysis of claim 13, and a chemical analyzing apparatus; said chemical-analyzing apparatus comprising, means for holding and supplying each of said strip mediums; means for dispensing liquid sample to said sample-receiving medium; superimposing means moving into contact with both said strip mediums after liquid sample has been applied to said liquid-sample-receiving mediums for superimposing said mediums, thereby to bring about transfer of reagent from said reagent holding to said sample holding medium; analyzing means cooperating with said sample-receiving medium, after reagent transfer has occurred and after a reaction between the transferred reagent and the sample has occurred, to analyze the reaction.
Claim 14
Independent Claim
79 words
A method for chemical analysis comprising the steps of applying liquid sample to be analyzed onto the face of one strip medium; applying reagent to be reacted with the liquid sample onto the face of another strip medium; superimposing the two strip medium faces directly into contact with each other; next, transferring either of the liquid sample and the reagent to the other strip medium, thereby causing a reaction between sample and reagent; and analyzing the resulting sample-reagent reaction.
Claim 15
Dependent Claim
22 words
The method for chemical analysis of claim 15, wherein said transferring step is performed by squeezing the two strip medium faces together.
Claim 16
Dependent Claim
21 words
The method for chemical analysis of claim 15, wherein the transferring step consists of transferring the reagent to the liquid-sample-holding medium.
Claim 17
Dependent Claim
23 words
The method for chemical analysis of claim 15, wherein the transferring step consists of transferring the liquid sample to the reagent-holding strip medium.
Claim 18
Dependent Claim
28 words
The method for chemical analysis of claim 18, wherein the reagent is applied to the reagent-holding strip medium after sample has been transferred to the reagent-holding strip medium.
Claim 19
Independent Claim
111 words
A method for chemically analyzing a plurality of liquid samples comprising the steps of applying each liquid sample to the face of a single strip medium, each sample being spaced apart from the others on the one strip medium; applying reagent to be reacted with the liquid sample on the face of another strip medium; superimposing the two strip medium faces directly into contact with each other so that the faces of the reagent holding strip medium contacts all of the liquid samples; next, transferring either of the liquid samples and the reagent to the other strip medium, thereby causing a reaction between reagent and every sample; analyzing every sample-reagent reaction.
Claim 20
Dependent Claim
22 words
The method for chemical analysis of claim 20, wherein said transferring step is performed by squeezing the two strip medium faces together.
Claim 21
Dependent Claim
28 words
The method for chemical analysis of claim 20, wherein the transferring step consists of transferring the liquid sample from the liquid-sample-holding strip medium to the reagent-holding strip medium.
Claim 22
Dependent Claim
39 words
The method for chemical analysis of claim 20, wherein after each sample is applied to the face of a strip medium, it is spread over a larger area of the strip medium to enlarge the area of the reaction.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |