CA1071890A - Gas purifier having rechargeable adsorber filter with removeable rechargeable sample canister - Google Patents
Gas purifier having rechargeable adsorber filter with removeable rechargeable sample canisterInfo
- Publication number
- CA1071890A CA1071890A CA264,063A CA264063A CA1071890A CA 1071890 A CA1071890 A CA 1071890A CA 264063 A CA264063 A CA 264063A CA 1071890 A CA1071890 A CA 1071890A
- Authority
- CA
- Canada
- Prior art keywords
- gas
- filter assemblies
- adsorbent material
- sample
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003463 adsorbent Substances 0.000 claims abstract description 306
- 239000000463 material Substances 0.000 claims abstract description 188
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 239000006096 absorbing agent Substances 0.000 claims abstract 2
- 230000000903 blocking effect Effects 0.000 claims description 41
- 239000007787 solid Substances 0.000 claims description 34
- 238000012360 testing method Methods 0.000 claims description 21
- 230000014759 maintenance of location Effects 0.000 claims description 18
- 230000003405 preventing effect Effects 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 230000002285 radioactive effect Effects 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 9
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 8
- 230000000737 periodic effect Effects 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 2
- 239000010457 zeolite Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 134
- 238000000429 assembly Methods 0.000 claims 134
- 238000011109 contamination Methods 0.000 claims 4
- 210000003414 extremity Anatomy 0.000 claims 4
- 210000003141 lower extremity Anatomy 0.000 claims 4
- 230000000063 preceeding effect Effects 0.000 claims 4
- 239000002594 sorbent Substances 0.000 claims 4
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 claims 2
- 239000002250 absorbent Substances 0.000 claims 1
- 230000002745 absorbent Effects 0.000 claims 1
- 230000004913 activation Effects 0.000 claims 1
- 229940000425 combination drug Drugs 0.000 claims 1
- 239000011133 lead Substances 0.000 claims 1
- 229960004839 potassium iodide Drugs 0.000 claims 1
- 235000007715 potassium iodide Nutrition 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract 1
- 230000005465 channeling Effects 0.000 description 28
- 238000013461 design Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 230000000717 retained effect Effects 0.000 description 5
- 239000013618 particulate matter Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 239000000356 contaminant Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- 241000282465 Canis Species 0.000 description 1
- 235000013162 Cocos nucifera Nutrition 0.000 description 1
- 244000060011 Cocos nucifera Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 150000001457 metallic cations Chemical class 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- -1 oxides of Chemical compound 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011257 shell material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013456 study Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0454—Controlling adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/02—Treating gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/306—Alkali metal compounds of potassium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/80—Organic bases or salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/93—Toxic compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40084—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by exchanging used adsorbents with fresh adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/403—Further details for adsorption processes and devices using three beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0446—Means for feeding or distributing gases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S95/00—Gas separation: processes
- Y10S95/90—Solid sorbent
- Y10S95/901—Activated carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Separation Of Gases By Adsorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Sampling And Sample Adjustment (AREA)
- Measurement Of Radiation (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/640,108 US4135896A (en) | 1975-12-11 | 1975-12-11 | Gas purifier having rechargeable adsorber filter with removeable rechargeable sample canister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1071890A true CA1071890A (en) | 1980-02-19 |
Family
ID=24566881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA264,063A Expired CA1071890A (en) | 1975-12-11 | 1976-10-25 | Gas purifier having rechargeable adsorber filter with removeable rechargeable sample canister |
Country Status (8)
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2384324A1 (fr) * | 1977-03-16 | 1978-10-13 | Framatome Sa | Puisard de recirculation pour les circuits d'injection de securite et d'aspersion d'un reacteur nucleaire |
| CA1102583A (en) * | 1977-07-22 | 1981-06-09 | Exxon Research And Engineering Company | Side stream monitoring |
| JPS5722977Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1980-03-10 | 1982-05-19 | ||
| US4500328A (en) * | 1983-02-22 | 1985-02-19 | Gilbert W. Brassell | Bonded carbon or ceramic fiber composite filter vent for radioactive waste |
| DE3635342A1 (de) * | 1986-10-17 | 1988-04-28 | Kernforschungsz Karlsruhe | Druckabbausystem fuer den sicherheitsbehaelter eines kernreaktors |
| US5198128A (en) * | 1987-07-03 | 1993-03-30 | Siemens Aktiengesellschaft | Waste disposal site, in particular for the ultimate disposal of radioactive substances |
| DE3838531A1 (de) * | 1988-11-14 | 1990-05-17 | Wolfgang Gerigk | Vorrichtung zur detektierung von verseuchter und vergifteter atemluft |
| GB2225734A (en) * | 1988-11-30 | 1990-06-13 | Marshall D A G | Fluid filter assembly |
| US5047348A (en) * | 1989-04-10 | 1991-09-10 | Massachusetts Institute Of Technology | Apparatus for housing radioactive items during incubation |
| US5334237A (en) * | 1993-02-26 | 1994-08-02 | Saes Pure Gas, Inc. | Method and apparatus for predicting end-of-life of a consumable in a fluid purification system |
| US6142742A (en) * | 1994-10-31 | 2000-11-07 | Saes Pure Gas, Inc. | Getter pump module and system |
| DE19548180C1 (de) * | 1995-12-22 | 1997-07-17 | Mann & Hummel Filter | Filteranordnung |
| US5964927A (en) * | 1997-07-11 | 1999-10-12 | Donaldson Company, Inc. | Adsorption apparatus |
| US6095356A (en) * | 1999-03-10 | 2000-08-01 | Children's Medical Center Corp. | Vented flask cap for absorbing radioactive gases |
| EP1357998B1 (en) * | 2000-05-05 | 2014-12-03 | Entegris, Inc. | Filters employing both acidic polymers and physical-adsorption media |
| US7540901B2 (en) * | 2000-05-05 | 2009-06-02 | Entegris, Inc. | Filters employing both acidic polymers and physical-adsorption media |
| US20040149130A1 (en) * | 2003-01-31 | 2004-08-05 | Dimiter Gorchev | HEPA filter housing system |
| US7201036B2 (en) * | 2004-02-27 | 2007-04-10 | Hunter Manufacturing Co. | Residual life indicating system |
| US7592178B2 (en) * | 2005-02-23 | 2009-09-22 | Hunter Menufacturing Co. | Filter integrity tester |
| TWI417130B (zh) * | 2006-07-13 | 2013-12-01 | Entegris Inc | 過濾系統 |
| JP5781279B2 (ja) * | 2010-06-15 | 2015-09-16 | 三菱重工業株式会社 | 放射性ヨウ素の吸着材及び放射性ヨウ素の除去装置 |
| JP2012026758A (ja) * | 2010-07-20 | 2012-02-09 | Chubu Electric Power Co Inc | 非常用ガス処理装置保守方法 |
| US9291484B2 (en) | 2010-10-01 | 2016-03-22 | 3M Innovative Properties Company | Method for correlating a monitoring device to the end of service life of a filter cartridge |
| KR20130099118A (ko) | 2010-10-01 | 2013-09-05 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 사용 수명의 종료 표시를 위한 휴대용 모니터 |
| KR102043480B1 (ko) | 2012-02-10 | 2019-11-11 | 엔테그리스, 아이엔씨. | 가스 정제기 |
| CN104822435A (zh) * | 2012-09-10 | 2015-08-05 | 恩特格林斯公司 | 防止层状净化床装置中微粒与粉尘游移的设备 |
| US9302226B2 (en) | 2014-05-05 | 2016-04-05 | Ge-Hitachi Nuclear Energy Americas Llc | Salt filtration system and method of removing a radioactive material from a gas using the same |
| US11650138B2 (en) * | 2019-10-31 | 2023-05-16 | Arcadis U.S., Inc. | Passive sampler |
| WO2021133619A1 (en) * | 2019-12-23 | 2021-07-01 | Entegris, Inc. | Filter life indicator media and holder |
| USD956197S1 (en) * | 2020-04-22 | 2022-06-28 | Guangdong Arcair Appliance Co., Ltd. | Air purifier |
| KR20250129658A (ko) * | 2022-12-30 | 2025-08-29 | 지이 버노바 테크놀로지 게엠베하 | 가스 분리 접촉기 모듈 조립체 및 가스 분리 접촉기 모듈 조립체를 제조하기 위한 방법 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US494837A (en) * | 1893-04-04 | John henry bellamy | ||
| GB308790A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1928-03-31 | 1930-05-29 | Deutsche Gasgluehlicht-Auer-Gesellschaft M.B.H. | |
| US2096851A (en) * | 1934-06-13 | 1937-10-26 | Bullard Co | Air purifier |
| US2150930A (en) * | 1935-08-15 | 1939-03-21 | Houdry Process Corp | Temperature regulation of chemical reactions |
| US2579477A (en) * | 1949-05-28 | 1951-12-25 | W B Connor Engineering Corp | Air-conditioning apparatus and the like |
| US2966234A (en) * | 1959-05-13 | 1960-12-27 | Nelson E Alexander | Membrane filter holder |
| US3141441A (en) * | 1962-04-23 | 1964-07-21 | Russell Mell | Sanitary receptacle |
| US3143997A (en) * | 1962-10-18 | 1964-08-11 | Gen Motors Corp | Filter capacity indicator |
| US3271089A (en) * | 1963-10-29 | 1966-09-06 | Harry I Krellen | Dehumidifying breather system for mobile cargo container |
| GB1124116A (en) * | 1965-07-28 | 1968-08-21 | Atomic Energy Authority Uk | Improvements in or relating to charcoal for use in trapping systems |
| US3658467A (en) * | 1969-07-28 | 1972-04-25 | Atomic Energy Commission | System for total iodine retention |
| US3678662A (en) * | 1970-05-14 | 1972-07-25 | Nat Bank And Trust Co Of Centr | Filter for moisture and oil vapor |
| US3747308A (en) * | 1971-02-03 | 1973-07-24 | Shell Oil Co | Gas treating apparatus |
| CH557690A (de) * | 1972-04-13 | 1975-01-15 | Delbag Luftfilter Gmbh | Mit riesel- oder schuettfaehigem kontaktmaterial beschicktes stehendes kesselfilter zur reinigung von gasen, insbesondere radioaktiver luft. |
| US3815335A (en) * | 1972-07-27 | 1974-06-11 | Barnebey Cheney Co | Washed activated charcoal adsorbers |
| US3873287A (en) * | 1972-07-27 | 1975-03-25 | Barnebey Cheney Co | Modular fluid filter construction |
| US3925046A (en) * | 1972-12-21 | 1975-12-09 | Cvi Corp | Radioactive gas standby treatment apparatus with high efficiency rechargeable charcoal filter |
| US3847574A (en) * | 1973-03-14 | 1974-11-12 | American Air Filter Co | Charcoal filter arrangement |
| US3961920A (en) * | 1974-01-24 | 1976-06-08 | Humphrey Gilbert | Gas adsorber cell test sampler |
| FR2271744A7 (en) * | 1974-05-17 | 1975-12-12 | Kernforschung Gmbh Ges Fuer | Gas purification by charged cartridge filter - comprising at least two identical streams in parallel |
| US3964890A (en) * | 1974-06-03 | 1976-06-22 | Cvi Corporation | Rechargeable particulate filter for radioactive contaminated gas streams |
-
1975
- 1975-12-11 US US05/640,108 patent/US4135896A/en not_active Expired - Lifetime
-
1976
- 1976-04-16 US US05/677,581 patent/US4133651A/en not_active Expired - Lifetime
- 1976-10-25 CA CA264,063A patent/CA1071890A/en not_active Expired
- 1976-11-11 ES ES453195A patent/ES453195A1/es not_active Expired
- 1976-12-01 DE DE19762654436 patent/DE2654436A1/de not_active Ceased
- 1976-12-10 JP JP51147882A patent/JPS5272288A/ja active Granted
- 1976-12-10 IT IT52565/76A patent/IT1074998B/it active
- 1976-12-10 FR FR7637314A patent/FR2357296A1/fr active Granted
- 1976-12-10 GB GB51693/76A patent/GB1523995A/en not_active Expired
-
1977
- 1977-05-04 ES ES458466A patent/ES458466A1/es not_active Expired
- 1977-05-30 JP JP6227977A patent/JPS534775A/ja active Pending
- 1977-12-11 ES ES458467A patent/ES458467A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2357296A1 (fr) | 1978-02-03 |
| US4133651A (en) | 1979-01-09 |
| JPS534775A (en) | 1978-01-17 |
| JPS5535974B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1980-09-18 |
| IT1074998B (it) | 1985-04-22 |
| DE2654436A1 (de) | 1977-06-23 |
| JPS5272288A (en) | 1977-06-16 |
| FR2357296B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1982-11-12 |
| ES458466A1 (es) | 1978-08-16 |
| US4135896A (en) | 1979-01-23 |
| ES458467A1 (es) | 1978-07-16 |
| ES453195A1 (es) | 1978-02-01 |
| GB1523995A (en) | 1978-09-06 |
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