US3912470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator for separating gases of different molecular weight and chromatography arrangement
Assignee: Balzers Patent und Beteiligungs AG
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Filing: 1974-06-24
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Granted: 1975-10-14
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Expires: 1994-06-24
Abstract
Abstract The separator has an evacuable chamber provided with an inlet nozzle for the gases, an outlet nozzle facing the inlet nozzle, an apertured diaphragm or the like controlling the stream of the useful gas removed through the outlet nozzle and a connection to a vaccum pump to evacuate the residual gas. A further nozzle is provided to direct a stream of auxiliary gas into the said chamber and is arranged, relative to the first-mentioned inlet nozzle, that the two gas streams produced in the evacuated chamber through the two inlet nozzles intersect each other, preferably at a right angle. A supply line to the auxiliary gas nozzle contains a valve whereby the force of the auxiliary gas stream may be regulated to control the amount of gas flowing out through the outlet nozzle. The auxiliary gas may be the same gas as used for the carrier gas. The outlet nozzle may be connected to a mass spectrometer or the like, particularly to an evacuated ionization chamber thereof.
Inventors
- 👤 Rudolf Fluckiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:28
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/84; G01N30/62; G01N30/72; G01N30/7293; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2273
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
250 words
IN A SEPARATOR FOR SEPARATING GASES HAVING DIFFERENT MOLECULAR WEIGHTS, SUCH AS FOR SEPARATING THE LIGHTER CARRIER GAS FROM THE HEAVIER GAS TO BE ANALYZED IN GAS CHROMATOGRAPHY, OF THE TYPE HAVING EVACUABLE CHAMBER SERVING AS A JET SEPARATOR AND PROVIDED WITH AN INLET NOZZLE FOR DIRECTING A MOLECULAR JET OF THE MIXED GAS INTO THE CHAMBER OF UNDISTURBED EXPANSION THEREIN, AN OUTLET NOZZLE COAXIALLY ALIGNED WITH THE INLET NOZZLE AND FACING AND ADJACENTLY SPACED THEREFROM TO SPLIT THE MOLECULAR JET OF GASES INTO A HEAVIER USEFUL CORE PORTION, FLOWING THROUGH THE OUTLET NOZZLE, AND A LIGHTER RESIDUAL PERIPHERAL PORTION, THE AXIAL SPACING OF THE INLET AND OUTLET NOZZLES BEING SUCH THAT THE MOLECULAR JET OF MIXED GASES LEAVING THE INLET NOZZLE TRAVERSES THE SPACE BETWEEN THE INLET AND OUTLET NOZZLES WHILE MAINTAINING ITS MOLECULAR FLOW WITHOUT TURBLENCE, MEANS CONTROLLING THE VOLUME OF THE STREAM OF HEAVIER USEFUL GAS REMOVED THROUGH THE OUTLET NOZZLE, AND A CONNECTION TO A PUMP FOR EVACUATING THE LIGHTER RESIDUAL GAS FROM THE CHAMBER, THE IMPROVEMENT COMPRISING, IN COMBINATION, A CONDUIT INCLUDING A FURTHER INLET NOZZLE OPENING ANDADJACENT SAID INLET AD OUTLET NOZZLES IN SAID CHAMBER, AND MEANS CONNECTED TO SAID FURTHER INLET NOZZLE FOR DIRECTING A REGULABLE STREAM OF AUXILILARY GAS UNDER PRESSURE THROUGH SAID FURTHER INLET NOZZLE OPENING IN A DIRECTION TO INTERSECT AND CONTROLLABLY DEFLECT SAID MOLECULAR JET IN THE SPACE BETWEEN SAID INLET AND OUTLET NOZZLES TO CONTROL THE AMOUNT OF HEAVIER USEFUL GAS ENTERING SAID OUTLET NOZZLE AND FLOWING THERETHROUGH
Claim 2
Dependent Claim
250 words
IN A SEPARATOR FOR SEPARATING GASES HAVING DIFFERENT MOLECULAR WEIGHTS, SUCH AS FOR SEPARATING THE LIGHTER CARRIER GAS FROM THE HEAVIER GAS TO BE ANALYZED IN GAS CHROMATOGRAPHY, OF THE TYPE HAVING EVACUABLE CHAMBER SERVING AS A JET SEPARATOR AND PROVIDED WITH AN INLET NOZZLE FOR DIRECTING A MOLECULAR JET OF THE MIXED GAS INTO THE CHAMBER OF UNDISTURBED EXPANSION THEREIN, AN OUTLET NOZZLE COAXIALLY ALIGNED WITH THE INLET NOZZLE AND FACING AND ADJACENTLY SPACED THEREFROM TO SPLIT THE MOLECULAR JET OF GASES INTO A HEAVIER USEFUL CORE PORTION, FLOWING THROUGH THE OUTLET NOZZLE, AND A LIGHTER RESIDUAL PERIPHERAL PORTION, THE AXIAL SPACING OF THE INLET AND OUTLET NOZZLES BEING SUCH THAT THE MOLECULAR JET OF MIXED GASES LEAVING THE INLET NOZZLE TRAVERSES THE SPACE BETWEEN THE INLET AND OUTLET NOZZLES WHILE MAINTAINING ITS MOLECULAR FLOW WITHOUT TURBLENCE, MEANS CONTROLLING THE VOLUME OF THE STREAM OF HEAVIER USEFUL GAS REMOVED THROUGH THE OUTLET NOZZLE, AND A CONNECTION TO A PUMP FOR EVACUATING THE LIGHTER RESIDUAL GAS FROM THE CHAMBER, THE IMPROVEMENT COMPRISING, IN COMBINATION, A CONDUIT INCLUDING A FURTHER INLET NOZZLE OPENING ANDADJACENT SAID INLET AD OUTLET NOZZLES IN SAID CHAMBER, AND MEANS CONNECTED TO SAID FURTHER INLET NOZZLE FOR DIRECTING A REGULABLE STREAM OF AUXILILARY GAS UNDER PRESSURE THROUGH SAID FURTHER INLET NOZZLE OPENING IN A DIRECTION TO INTERSECT AND CONTROLLABLY DEFLECT SAID MOLECULAR JET IN THE SPACE BETWEEN SAID INLET AND OUTLET NOZZLES TO CONTROL THE AMOUNT OF HEAVIER USEFUL GAS ENTERING SAID OUTLET NOZZLE AND FLOWING THERETHROUGH
Claim 3
Dependent Claim
49 words
In a separator for separating gases having different molecular weights, the improvement claimed in claim 1 including a supply conduit, for the auxiliary gas, connecting said further inlet opening to a source of auxiliary gas; and a valve interposed in said supply conduit and having an adjustable gas conductance.
Claim 4
Dependent Claim
41 words
In a separator for separating gases having different molecular weights, the improvement claimed in claim 2, in which said supply conduit for the auxiliary gas is divided into plural branches each having interposed therein a said valve with adjustable gas conductance.
Claim 5
Dependent Claim
52 words
In a separator for separating gases having different molecular weights, the improvement claimed in claim 1, in which said separator forms part of a chromatographic arrangement; said arrangement including a storage tank for supplying the carrier gas; said auxiliary gas supply conduit being connected to said storage tank for the carrier gas.
Claim 6
Dependent Claim
43 words
In a separator for separating gases having different molecular weights, the improvement claimed in claim 1, in which said further inlet opening comprises a nozzle having an axis intersecting the common axis of said first-mentioned nozzles at a point between said first-mentioned nozzles.
Claim 7
Dependent Claim
52 words
In a separator for separating gases having different molecular weights, the improvement claimed in claim 5, in which the axis of said last-mentioned nozzle constituting said further inlet nozzle opening intersects the common axis of the nozzles constituting said first-mentioned inlet nozzle opening and said outlet nozzle opening at a right angle.
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) | 1978-10-13 | 1979-04-14 | 1979-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-13 | 1983-04-14 | 1983-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-13 | 1987-04-14 | 1987-10-14 | $7700.00 | Window Closed / Lapsed |