Patent US3658485A successfully refreshed from Google Patents.
US3658485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas purifying apparatus
Assignee: Siemens AG
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Filing: 1969-04-22
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Granted: 1972-04-25
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Expires: 1989-04-22
Abstract
Abstract In a closed coolant loop of a nuclear reactor there is provided an apparatus for purifying contaminated nuclear reactor coolant gas of nuclear decomposition products, comprising filtering means for filtering a uniform flow of contaminated gas to be purified, the filtering means having components consisting at least partly of copper, gas removing means for removing a test quantity of the contaminated gas flowing through the filtering means, gas testing means connected to the gas removing means for receiving the test quantity and for analyzing the contaminating content of the test quantity, and means for selectively adding quantities of reducing and oxidizing gases to the contaminated gas so as to simultaneously regenerate the components of the filtering means as the contaminated gas is being purified.
Inventors
- 👤 Gottfried Gramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:42
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
20 words
Apparatus according to claim 1 wherein the components of said filtering means are in the form of porous sintered elements.
Claim 2
Dependent Claim
28 words
Apparatus according to claim 1 wherein the components of said filtering means are in the form of ceramic elements with vapor-deposited layers consisting at least partly of copper.
Claim 3
Dependent Claim
58 words
Apparatus according to claim 1 wherein said filtering means has an inlet and outlet for the flow of the gas to be purified, said gas removing means removing said test quantity from a location intermediate said inlet and outlet, and said components of said filtering means upstream of said gas removing location being in the form of particles.
Claim 4
Dependent Claim
133 words
In a closed coolant loop of a nuclear reactor, apparatus for purifying nuclear reactor coolant gas of nuclear decomposition products comprising circulating means for circulating the coolant gas to be purified, filtering means connected in said circulating means for filtering the coolant gas, said filtering means comprising copper and copper oxide bearing components, gas removing means for removing a test quantity of the coolant gas passing through said filtering means, gas testing means connected to said gas removing means for receiving said test quantity of the coolant gas and for analyzing the impurity content of said test quantity, and means for selectively adding quantities of oxygen and hydrogen to the coolant gas before it passes through said filter means so as to simultaneously regenerate said components as the coolant gas is being purified.
Claim 5
Dependent Claim
168 words
In a closed coolant loop of a nuclear reactor, apparatus for purifying a nucleAr reactor coolant gas of nuclear decomposition products comprising circulating means for circulating the coolant gas to be purified, filtering means connected in said circulating means for filtering the coolant gas, said filtering means comprising copper and copper oxide bearing components, gas removing means for removing a test quantity of the coolant gas passing through said filtering means, gas testing means connected to said gas removing means for receiving said test quantity of the coolant gas and for analyzing the impurity content of said test quantity, and oxygen and carbon monoxide supply means connected with said circulating means, said supply means being controlled by said gas testing means in accordance with the analysis of said test quantity for selectively adding quantities of oxygen and carbon monoxide to the coolant gas in said circulating means before it passes through said filter means so as to simultaneously regenerate said components as the coolant gas is being purified.
Claim 6
Dependent Claim
188 words
In a closed coolant loop of a nuclear reactor, apparatus for purifying a nuclear reactor coolant gas of nuclear decomposition products in the primary coolant loop of nuclear reactors comprising filtering means connected in the primary loop for filtering the coolant gas, said filtering means comprising a bed of copper and copper oxide bearing particles, gas removing means for removing a test quantity of the coolant gas passing through said bed of particles, gas testing means connected to said gas removing means for receiving said test quantity of the coolant gas and for analyzing the impurity content of said test quantity, oxidizing gas and reducing gas supply means, conduit means connecting said supply means with the primary loop of a nuclear reactor, valve means provided in said conduit means and controllable by said gas testing means in accordance with the analysis of said test quantity for selectively adding quantities of oxidizing gas and reducing gas to the coolant gas in the primary loop before it passes through said filter means so as to simultaneously regenerate the particles of said filtering means as the coolant gas is being purified.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |