US3829223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing rotor for fast analyzer of rotary cuvette type with means for enhancing the mixing of sample and reagent liquids
Assignee: United States Atomic Energy Commission
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Filing: 1973-07-20
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Granted: 1974-08-13
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Expires: 1993-07-20
Abstract
Abstract A rotor design which provides improved mixing of sample and reagent liquids in a fast photometric analyzer of the rotary cuvette type is described. According to the preferred embodiment, one or more ramp-like projections are provided along the wall of each sample analysis cuvette to enhance mixing.
Inventors
- 👤 S Hamel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:34
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/01; G01N21/03; G01N21/07; B; B01; B01F; B01F33/00; B01F33/50; B01F2101/00; B01F2101/23
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
124 words
In a rotor for use in a fast photometric analyzer of the rotary cuvette type comprising a disk-shaped member of laminated construction with a central opaque disk sandwiched between top and bottom transparent walls, and wherein said disk-shaped member defines a circular array of sample analysis cuvettes extending axially through said central opaque disk and means for loading and injecting sample and reagent liquids into said sample analysis cuvettes; the improvement wherein each of said sample analysis cuvettes has a generally cylindrical side wall defined by said opaque disk with a projection extending axially along said side wall between said top and bottom transparent walls and radially inward toward the center of said cuvette for enhancing the mixing of sample and reagent liquids therein.
Claim 2
Dependent Claim
124 words
In a rotor for use in a fast photometric analyzer of the rotary cuvette type comprising a disk-shaped member of laminated construction with a central opaque disk sandwiched between top and bottom transparent walls, and wherein said disk-shaped member defines a circular array of sample analysis cuvettes extending axially through said central opaque disk and means for loading and injecting sample and reagent liquids into said sample analysis cuvettes; the improvement wherein each of said sample analysis cuvettes has a generally cylindrical side wall defined by said opaque disk with a projection extending axially along said side wall between said top and bottom transparent walls and radially inward toward the center of said cuvette for enhancing the mixing of sample and reagent liquids therein.
Claim 3
Dependent Claim
31 words
The improvement of claim 1 wherein said projection defines two axially extending, intersecting, concave surfaces, each having a radius of curvature which is smaller than that of said sample analysis cuvette.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |