US4141954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction tube assembly for automatic analyzer
Assignee: Olympus Corp
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Filing: 1977-10-25
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Granted: 1979-02-27
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Expires: 1997-10-25
Abstract
Abstract An assembly comprises a disc having an annular array of a number of reaction tubes formed adjacent to the periphery thereof. Each reaction tube is U-shaped and has its one end formed as an open-ended reaction chamber and its other end functioning as an air supply port. The link portion between the reaction chamber and the port is made transparent, forming a flow cell which permits the transmission of light which is used for the purpose of analytical determination. The assembly permits treatment with a reagent of a sample for reaction as well as a photometry for colorimetric analysis of the sample solution obtained by the reaction treatment of the sample.
Inventors
- 👤 Sadao Shigetomi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:20
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/01; G01N21/03
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
78 words
A reaction tube assembly for an automatic analyzer comprising a disc having a plurality of reaction tubes disposed along the periphery thereof, each reaction tube including a reaction chamber which is open at one end of the tube, the other end of the tube being formed as an air supply port with a hollow link providing a communication between the reaction chamber and the air supply port, the link being made transparent to serve as a flow cell.
Claim 2
Dependent Claim
78 words
A reaction tube assembly for an automatic analyzer comprising a disc having a plurality of reaction tubes disposed along the periphery thereof, each reaction tube including a reaction chamber which is open at one end of the tube, the other end of the tube being formed as an air supply port with a hollow link providing a communication between the reaction chamber and the air supply port, the link being made transparent to serve as a flow cell.
Claim 3
Dependent Claim
16 words
A reaction tube assembly according to claim 1 in which each reaction tube is generally transparent.
Claim 4
Dependent Claim
26 words
A reaction tube assembly according to claim 1 in which each reaction tube is formed by a transparent box-shaped body into which a partition is fitted.
Claim 5
Dependent Claim
20 words
The assembly of claim 3 wherein the partition is fitted into the body to define a generally U-shaped hollow interior.
Claim 6
Dependent Claim
55 words
The assembly of claim 1 further comprising analyzer means including a light source and a sensor means positioned a spaced distance apart; means for stepping said disc in an incremental fashion to position the transparent portion of each tube between said light source and said sensor to permit analysis of the content of each tube.
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) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |