Patent US1372829A successfully refreshed from Google Patents.
US4279727A
Expired / Lapsed
US
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Device for measuring the emission of gaseous inorganic fluorine or chlorine compounds
Assignee: Siemens AG
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Filing: 1979-12-19
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Granted: 1981-07-21
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Expires: 1999-12-19
Abstract
Abstract The invention relates to a device for measuring the emission of gaseous inorganic fluorine or chlorine compounds in exhaust gases by drawing the exhaust gases into a bulb-shaped absorption vessel containing a flowing-through absorption liquid and a cylindrical liquid separator and a cylindrical continuous-flow measuring cell with a fluorine-ion-sensitive or chlorine-ion-sensitive electrode measuring means for the potentiometric determination of the fluorine or chlorine-ion concentration. The absorption vessel is secured on a plate above the continuous flow measuring cell and the liquid separator is situated in between.
Inventors
- 👤 Egmont Scheubeck
- 👤 Gertrud Blazevic
- 👤 Marianne Boehner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:43
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/0004; G01N33/0009; G01N33/0027; G01N33/0036; G01N33/0052; G01N27/00; G01N27/26; G01N27/416; G01N27/4162
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
149 words
A device for continuously measuring the emission of gaseous inorganic fluorine or chlorine compounds, comprising means for continuously drawing exhaust gas to be analyzed into the device, receiving means within said device for continuously receiving said exhaust gas and for receiving a liquid for absorbing the inorganic fluorine or chlorine compounds in said gas, separating means for continuously separating the liquid containing absorbed inorganic fluorine or chlorine compounds from gas, means for continuously, directly measuring quantities of said fluorine or clorine compounds in said liquid by potentiometric methods and valve means for directing the flow of said liquid and liquid or liquids used for calibration of said device, said receiving, separating, measuring and valve means being affixed in relative positions on a base or plate such that said receiving means is positioned vertically above said measuring means and said separating means is positioned intermediate said receiving and measuring means.
Claim 2
Independent Claim
149 words
A device for continuously measuring the emission of gaseous inorganic fluorine or chlorine compounds, comprising means for continuously drawing exhaust gas to be analyzed into the device, receiving means within said device for continuously receiving said exhaust gas and for receiving a liquid for absorbing the inorganic fluorine or chlorine compounds in said gas, separating means for continuously separating the liquid containing absorbed inorganic fluorine or chlorine compounds from gas, means for continuously, directly measuring quantities of said fluorine or clorine compounds in said liquid by potentiometric methods and valve means for directing the flow of said liquid and liquid or liquids used for calibration of said device, said receiving, separating, measuring and valve means being affixed in relative positions on a base or plate such that said receiving means is positioned vertically above said measuring means and said separating means is positioned intermediate said receiving and measuring means.
Claim 3
Dependent Claim
24 words
The device of claim 1 wherein said receiving means contains means for bringing about intensive mixing between the exhaust gas and the absorption liquid.
Claim 4
Dependent Claim
21 words
The device of claim 1 wherein said measuring means comprises a fluorine or chlorine-ion sensitive indicator electrode and a reference electrode.
Claim 5
Dependent Claim
35 words
The device of claim 1 wherein said separating means contains an inlet tube for receiving said mixture of gas and absorption liquid which tube extends closely ahead of the outlet opening of said separating means.
References Cited (Backward Citations)
US3058901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-07-20 | 1985-01-19 | 1985-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-20 | 1989-01-19 | 1989-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-20 | 1993-01-19 | 1993-07-21 | $7700.00 | Window Closed / Lapsed |