US3736059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for spectrochemical analysis of solutions
Assignee: Individual
•
Filing: 1971-06-17
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Granted: 1973-05-29
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Expires: 1991-06-17
Abstract
Abstract A device for the quantitative spectrochemical analysis of solutions uses two spark discharge electrodes. One of the electrodes is a carbon rod electrode whose one end is shaped as a truncated cone and has a semi-spherical end surface. The other electrode is a circular carbon disc electrode which has a rotary drive and is located beneath the rod electrode. A condensing chamber atomizer is provided for producing a flow of aerosol from the solution to be tested and a jet for the flow of aerosol is directed at the disk outside the spark discharge zone. The device uses optical and electrical equipment comprises among other things a lenticulated condensor, multichannel spectrometer and photomultipliers.
Inventors
- 👤 W Schuhknecht
- 👤 M Bollsterling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:18
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/66; G01N21/69
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
In a device for quantitative spectrochemical analysis of a solution, comprising: two spark-discharge electrodes (2;3) defining a spark discharge zone, one of which electrodes has the form of a disk (3) and is provided with a drive; and a means for applying the solution to the periphery of the disk, the improvement residing in that the said means include an atomizer for producing a flow of aerosol from the solution and have means to arrest relatively large droplets from the aerosol, and a nozzle disposed outside said spark discharge zone for directing the flow of aerosol at the disk (3).
Claim 2
Dependent Claim
100 words
In a device for quantitative spectrochemical analysis of a solution, comprising: two spark-discharge electrodes (2;3) defining a spark discharge zone, one of which electrodes has the form of a disk (3) and is provided with a drive; and a means for applying the solution to the periphery of the disk, the improvement residing in that the said means include an atomizer for producing a flow of aerosol from the solution and have means to arrest relatively large droplets from the aerosol, and a nozzle disposed outside said spark discharge zone for directing the flow of aerosol at the disk (3).
Claim 3
Dependent Claim
22 words
A device according to claim 1 in which said means to arrest relatively large droplets from the aerosol comprises a condensing chamber.
Claim 4
Dependent Claim
41 words
A device according to claim 1 in which the nozzle as seen in a direction of rotation of the disk (3) is directed at and disposed adjacent to the second quarter of the disk periphery located outside the spark discharge zone.
Claim 5
Independent Claim
137 words
A method of performing spectral analysis of a solution by supplying the solution in the form of an aerosol into a spark discharge gap and examining the spectrum emitted by the spark discharge, comprising: arranging a spark discharge gap between a conducting rotatable disk and proximate elongate counter electrode; atomizing the solution into the form of a aerosol to be fed in a predetermined manner to the spark discharge gap; arresting relatively large and liquid particles of the aerosol; and feeding the aerosol devoid of said relatively large and liquid particles, into the spark discharge gap on the disk periphery from a region away from the spark discharge gap, whereby the aerosol becomes substantially dry when reaching the spark discharge gap and is devoid of heavy particles, thereby improving the accuracy of results of the spectral examination.
Claim 6
Independent Claim
137 words
A method of performing spectral analysis of a solution by supplying the solution in the form of an aerosol into a spark discharge gap and examining the spectrum emitted by the spark discharge, comprising: arranging a spark discharge gap between a conducting rotatable disk and proximate elongate counter electrode; atomizing the solution into the form of a aerosol to be fed in a predetermined manner to the spark discharge gap; arresting relatively large and liquid particles of the aerosol; and feeding the aerosol devoid of said relatively large and liquid particles, into the spark discharge gap on the disk periphery from a region away from the spark discharge gap, whereby the aerosol becomes substantially dry when reaching the spark discharge gap and is devoid of heavy particles, thereby improving the accuracy of results of the spectral examination.
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |