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US3625614A
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Method of and device for the modulated sample supply in the spectrochemical analysis of a solution
Assignee: Carl Zeiss AG
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Filing: 1969-12-18
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Granted: 1971-12-07
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Expires: 1989-12-18
Abstract
Abstract The invention relates to a method and a device used in the spectrochemical analysis of a solution in which samples of the solution are fed periodically from a sample vessel to a vaporizer to produce in the latter a photometric signal. The fluid line between the sample vessel and the vaporizer consists principally of flexible hoses and contains at least one section of a rigid capillary tube which by means of an eccentric drive mechanism is reciprocated lengthwise to its longitudinally axis to convey individual columns of the sample solution to the vaporizer. The sample vessel may be divided into a plurality of sections, each containing a different solution and one end of the fluid line may be periodically immersed by the action of said eccentric drive successively into these sections to convey successively a different solution to the vaporizer.
Inventors
- 👤 Roland Herrmann
- 👤 Werner Neu
- 👤 Kurt Rudiger
- 👤 Brigitte Gutsche
- 👤 Hans Kirchhof
- 👤 Werner Trampisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:51
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/71; G01N21/714; G01N1/00; G01N1/02; G01N1/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
136 words
A method of modulated sample feed in the spectrochemical analysis of a solution, in which at least a section of a fluid line having a free end and leading from a sample vessel to a vaporizer is periodically moved to and fro in the axial direction of said section of said line, so that the solution will reach the vaporizer only during a portion of this cyclic movement, wherein the improvement comprises the steps of moving said section of the fluid line leading to said vaporizer in an axial direction during a portion of a cycle of movement with a speed which is greater than the velocity of flow of the solution in said section, and causing said free end of the fluid line to remain immersed in the solution during the entire cycle of movement.
Claim 2
Dependent Claim
51 words
A method as claimed in claim 21, additionally comprising alternatingly vaporizing several solutions by periodically moving several fluid intake lines leading from different sample vessels to said vaporizer, producing phase shift between the movement of said several intake lines whereby only one solution at a time will alternatingly enter said vaporizer.
Claim 3
Independent Claim
54 words
A method of modulated sample feed in the spectrochemical analysis of a solution, including the steps of varying periodically the volume of the fluid line leading from a sample vessel to a vaporizer to vary the volume of solution fed to the vaporizer and maintaining a single uninterrupted liquid column in said fluid line.
Claim 4
Independent Claim
151 words
A device for use in the spectrochemical analysis of a solution comprising vessel means for supplying a modulated sample to a vaporizer, including a pivotally mounted lever, an eccentric drive for operating said lever, a fluid intake line having a rigid section and at least one partially flexible section leading from said vessel means to said vaporizer, means for attaching said rigid section to said lever in such a manner that said rigid section of said fluid line is moved in an axial direction to and fro, wherein the improvement comprises a pump connected as said vessel means with one end of said fluid line for assuring a uniform supply of the solution, and said eccentric drive is said rigid section of said fluid intake line to move said rigid section connected to a speed which is greater than the velocity of the flow of the solution in said rigid section.
Claim 5
Independent Claim
75 words
A device for use in the spectrochemical analysis of a solution which feeds a modulated sample to a vaporizer, comprising a sample vessel and a vaporizer, a fluid intake line connecting said vessel with said vaporizer, said fluid intake line being provided with a lateral tubular extension independent of said vessel closed by means of a reciprocable member so as to vary, without interruption, the feed of the solution from said vessel to the vaporizer.
Claim 6
Independent Claim
179 words
A device for use in the spectrochemical analysis of a solution comprising vessel means for supplying a modulated sample to a vaporizer, including a pivotally mounted lever, in eccentric drive for operating said lever, a capillary fluid intake line having a rigid section and at least one partially flexible section leading from said vessel means to said vaporizer, said rigid section being attached to said lever in such a manner that said rigid section of said fluid intake line is moved in an axial direction to and fro when said lever is actuated, wherein the improvement comprises a plurality of said capillary fluid lines leading to a single vaporizer, each of said lines being immersed and remaining immersed with one of their ends in a different solution for the alternating vaporization of several solutions a plurality of said levers operatively connected to said lines for periodically moving the same, and a plurality of said eccentric drives coupled to provide said lines with a phasE shift such that only one solution at a time is alternatingly fed to said vaporizer.
References Cited (Backward Citations)
US3469438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |