US4549812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid phase counter
Assignee: Centre National de la Recherche Scientifique
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Filing: 1984-10-24
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Granted: 1985-10-29
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Expires: 2004-10-24
Abstract
Abstract Liquid phase counter for a partly liquid, transparent mixture. This counter comprises at least one cell containing a transparent liquid mixture, means for homogenizing a mixture, means for the optical measurement of the transparency of the mixture, means for displacing the said means parallel to the cell, means for positioning said means to the right of a cell and an electronic control and processing means determining the number of phases of a mixture as a function of the signal supplied by the optical measuring means. Application to the formation of the phase diagram of a partly liquid, transparent mixture.
Inventors
- 👤 Pierre Bothorel
- 👤 Roland Bernon
- 👤 Guy Gabriel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:27
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/04; B; B01; B01F; B01F33/00; B01F33/45; B01F33/452; G01N33/00; G01N33/26; G01N33/28; G01N33/2823; G01N21/00; G01N21/17; G01N21/59; G01N21/5907; G01N2021/5969
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
140 words
A liquid phase counter for a partly liquid and transparent mixture, wherein it comprises: at least one cell fixed to a support, each cell being arranged vertically and containing a partly liquid and transparent mixture, a means for homogenizing the mixture of each cell, an optical means for measuring the optical transparency of the mixture between two walls of a cell, a displacement means for displacing the homogenization means and the measuring means over the entire height of a cell and a parallel thereto, as well as a positioning means for positioning said means to the right of each cell, an electronic control and processing means supplying signals for controlling the displacement and positioning means and the homogenization means and able to determine the number of phases of a mixture according to the signals received from the optical measuring means.
Claim 2
Dependent Claim
140 words
A liquid phase counter for a partly liquid and transparent mixture, wherein it comprises: at least one cell fixed to a support, each cell being arranged vertically and containing a partly liquid and transparent mixture, a means for homogenizing the mixture of each cell, an optical means for measuring the optical transparency of the mixture between two walls of a cell, a displacement means for displacing the homogenization means and the measuring means over the entire height of a cell and a parallel thereto, as well as a positioning means for positioning said means to the right of each cell, an electronic control and processing means supplying signals for controlling the displacement and positioning means and the homogenization means and able to determine the number of phases of a mixture according to the signals received from the optical measuring means.
Claim 3
Dependent Claim
58 words
A counter according to claim 1 for plotting the phase diagram of a partly liquid, transparent mixture, wherein it also comprises for each cell: one or more sources, each supplying one constituent of the mixture, at least one pump per source, electrovalve controlled by the electronic means to permit the addition of each liquid constituent to each cell.
Claim 4
Dependent Claim
24 words
A counter according to claim 1, wherein the cells are located on a circular ring, whose centre constitutes the axis of the positioning means.
Claim 5
Dependent Claim
26 words
A counter according to claim 1, wherein the optical measuring means comprises a lighting source and a facing photodiode arranged on either side of the cell.
Claim 6
Dependent Claim
17 words
A counter according to claim 1, wherein the homogenization means comprises an electromagnet and a magnetic bar.
Claim 7
Dependent Claim
30 words
A counter according to claim 5, wherein a permanent magnet is located in the cell or outside the same, above the mixture, constituting a rest position for the magnetic bar.
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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) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |