US3602716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for high-speed chromatographic analysis of gases
Assignee: Chemoprojekt Projektova Inzenyrska a Konzultacni Organizace
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Filing: 1968-11-14
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Granted: 1971-08-31
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Expires: 1988-11-14
Abstract
Abstract A high-speed chromatographic gas analysis apparatus with an evaluating system and an ionization detector. The substance to be analized becomes ionized within the detector, and the resulting ions are attracted to electrodes of the detector. The ions generate an ionic current in the electrodes, and this current is used to indicate the weight of the substance being analized. The electrode arrangement is such that two separate and independent ionic current circuits are formed. One current circuit is connected to a capacitor which becomes charged by the current flow. The other ionic current circuit is transmitted to a controlling arrangement which establishes the interval during which the capacitor is charged. Although the two current circuits are independent and separate from each other, the current flow through both circuits is substantially identical.
Inventors
- 👤 Stanislav Matousek
- 👤 Zdenek Typlt
- 👤 Josef Kovar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:31
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/86; G01N30/8651; G01N30/62; G01N30/64; G01N30/70
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
335 words
An arrangement for the chromotographic analysis of gases, comprising an ionization detector including a source of ionization and a measuring electrode having a first electrode part and a second electrode part for simultaneously generating two mutually independent sets of first and second output signals which are similar in shape and are generated for each component of analyzed gas so that successive components produce successive pairs of said first and second output signals; storage means including a plurality of storage elements for storing data on the quantity of each of said components present in said analyzed gas, each component being associated with a different storage element so that each of said storage elements defines uniquely the quantity of the component associated with the respective storage element, said storage elements being isolated from each other so that the data stored within each of said storage elements is variable And independent of the data stored in the remaining elements; switch means connected with said first electrode part and having a plurality of positions for connecting said first electrode part with said storage elements, respectively so that in each connecting position of said switch means a different storage element is charged by said first output signal generated by said first electrode part; storage control means for moving said switch means between said positions, said storage control means being connected with said second electrode part and being controlled by said second output signals generated by the same to move said switch means from any of said positions thereof to another position when said second output signal generated by a component reaches a predetermined level so that each first output signal representing a different component is stored in a different storage element whereby each storage element stores a final charge representing the quantity of the respective stored component when the respective storage element is disconnected by said switch means from said first electrode part; and means for evaluating the charges of said storage elements for determining the quantity of each component.
Claim 2
Dependent Claim
335 words
An arrangement for the chromotographic analysis of gases, comprising an ionization detector including a source of ionization and a measuring electrode having a first electrode part and a second electrode part for simultaneously generating two mutually independent sets of first and second output signals which are similar in shape and are generated for each component of analyzed gas so that successive components produce successive pairs of said first and second output signals; storage means including a plurality of storage elements for storing data on the quantity of each of said components present in said analyzed gas, each component being associated with a different storage element so that each of said storage elements defines uniquely the quantity of the component associated with the respective storage element, said storage elements being isolated from each other so that the data stored within each of said storage elements is variable And independent of the data stored in the remaining elements; switch means connected with said first electrode part and having a plurality of positions for connecting said first electrode part with said storage elements, respectively so that in each connecting position of said switch means a different storage element is charged by said first output signal generated by said first electrode part; storage control means for moving said switch means between said positions, said storage control means being connected with said second electrode part and being controlled by said second output signals generated by the same to move said switch means from any of said positions thereof to another position when said second output signal generated by a component reaches a predetermined level so that each first output signal representing a different component is stored in a different storage element whereby each storage element stores a final charge representing the quantity of the respective stored component when the respective storage element is disconnected by said switch means from said first electrode part; and means for evaluating the charges of said storage elements for determining the quantity of each component.
Claim 3
Dependent Claim
37 words
The arrangement as defined in claim 1 including amplifying means connected between said storage elements and said means for evaluating the charges of said storage elements, said amplifying means amplifying the signals stored in said storage elements.
Claim 4
Dependent Claim
35 words
The arrangement as defined in claim 1 wherein said means for evaluating the charges of said storage elements comprises indicating means whereby the data stored by said storage elements may be displaced to an observer.
Claim 5
Dependent Claim
54 words
The arrangement as defined in claim 1 including analog to digital converting means for converting the data stored in analog form by said storage elements into corresponding digital form for applying to said means for evaluating the charges of said storage element, said evaluating means being a digital evaluator adapted to receiving digital signals.
Claim 6
Dependent Claim
48 words
An arrangement for the chromatographic analysis of gases, as claimed in claim 1 wherein said ionization detector includes a cylindrical cathode, a radioactive radiator on the inner surface of said cathode, and wherein said measuring electrode is at least partially positioned in the axis of said cylindrical cathode.
Claim 7
Dependent Claim
19 words
An arrangement as claimed in claim 1 wherein said electrode parts are a pair of spaced coaxial annular members.
Claim 8
Dependent Claim
26 words
An arrangement as claimed in claim 1 wherein said electrode parts are symmetrically positioned semiannular members located in the same plane and opening toward each other.
Claim 9
Dependent Claim
35 words
An arrangement as claimed in claim 1 wherein said electrode parts are a pair of coaxially positioned rod-shaped members extending end to end, said measuring electrode including an insulating member positioned between said rod-shaped members.
Claim 10
Dependent Claim
43 words
An arrangement as claimed in claim 1 wherein said electrode parts are a pair of spaced symmetrically positioned rodlike members of circular cross section extending coaxially, said measuring electrode including an insulating member of substantially rectangular cross section positioned between said rodlike members.
Claim 11
Dependent Claim
21 words
An arrangement as claimed in claim 9 wherein said rodlike members and said insulating member together have a circular cross section.
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) | 1974-08-30 | 1975-03-01 | 1975-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-30 | 1979-03-01 | 1979-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-30 | 1983-03-01 | 1983-08-31 | $7700.00 | Window Closed / Lapsed |