DE3445639C2 - - Google Patents
Info
- Publication number
- DE3445639C2 DE3445639C2 DE3445639A DE3445639A DE3445639C2 DE 3445639 C2 DE3445639 C2 DE 3445639C2 DE 3445639 A DE3445639 A DE 3445639A DE 3445639 A DE3445639 A DE 3445639A DE 3445639 C2 DE3445639 C2 DE 3445639C2
- Authority
- DE
- Germany
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
- A62B18/088—Devices for indicating filter saturation
Landscapes
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843445639 DE3445639A1 (de) | 1984-12-14 | 1984-12-14 | Kolorimetrischer indikator zur anzeige des erschoepfungszustandes von gasfiltern |
GB08530095A GB2168259B (en) | 1984-12-14 | 1985-12-06 | A filter apparatus having a monitor for indicating the state of exhaustion of the filter |
US06/809,011 US4684380A (en) | 1984-12-14 | 1985-12-13 | Colorimetric indicator for the indication of the exhaustion of gas filters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843445639 DE3445639A1 (de) | 1984-12-14 | 1984-12-14 | Kolorimetrischer indikator zur anzeige des erschoepfungszustandes von gasfiltern |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3445639A1 DE3445639A1 (de) | 1986-06-26 |
DE3445639C2 true DE3445639C2 (US06633600-20031014-M00021.png) | 1987-02-12 |
Family
ID=6252781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843445639 Granted DE3445639A1 (de) | 1984-12-14 | 1984-12-14 | Kolorimetrischer indikator zur anzeige des erschoepfungszustandes von gasfiltern |
Country Status (3)
Country | Link |
---|---|
US (1) | US4684380A (US06633600-20031014-M00021.png) |
DE (1) | DE3445639A1 (US06633600-20031014-M00021.png) |
GB (1) | GB2168259B (US06633600-20031014-M00021.png) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3838531A1 (de) * | 1988-11-14 | 1990-05-17 | Wolfgang Gerigk | Vorrichtung zur detektierung von verseuchter und vergifteter atemluft |
DE4132680A1 (de) * | 1991-10-01 | 1993-04-08 | Draegerwerk Ag | Atemschutzmaske mit innenhalbmaske und schadstoffindikator |
DE10261842A1 (de) * | 2002-12-20 | 2004-07-15 | Atc Dr. Mann E.K. | Farbindikationssystem und seine Verwendung |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3610492A1 (de) * | 1986-03-27 | 1987-10-01 | Draegerwerk Ag | Atemschutzgeraet |
US5226937A (en) * | 1989-08-18 | 1993-07-13 | Pall Corporation | Void-containing sorbent pad |
ATE144904T1 (de) * | 1991-05-14 | 1996-11-15 | Purecab Australia Pty Ltd | Filter |
DE4214239C2 (de) * | 1992-04-30 | 1994-06-16 | Draegerwerk Ag | Atemschutzmaske mit einem indikator |
US5634426A (en) * | 1995-02-22 | 1997-06-03 | Tomlinson; Bruce | Absorption depletion indicators for anesthetic gas administration systems |
US5727498A (en) * | 1996-02-13 | 1998-03-17 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Retractable visual indicator assembly |
NL1004343C2 (nl) * | 1996-10-23 | 1998-04-24 | Tno | Inrichting voor het uit een gas of dampmengsel wegnemen van een of meer voor de mens ongewenste stoffen of gevaarlijke stoffen, en gasmasker dat een dergelijke inrichting omvat. |
US5759492A (en) * | 1997-05-22 | 1998-06-02 | Xerox Corporation | End of life monitor for a gas filter |
AT2166U3 (de) * | 1998-02-27 | 2002-05-27 | Lico Electronics Gmbh | Lötrauchabsaugende lupenlampe |
DE10030831B4 (de) * | 2000-06-23 | 2009-05-28 | Air Liquide Deutschland Gmbh | Indikatorpatrone für die Gasreinigung |
US6497756B1 (en) * | 2000-09-12 | 2002-12-24 | North Safety Products, Inc. | Service life indicator for respirator cartridge |
US6979361B2 (en) * | 2002-07-17 | 2005-12-27 | Gueorgui Milev Mihayiov | End of service life indicator for fluid filter |
CA2498714A1 (en) * | 2002-09-16 | 2004-03-25 | Aerocrine Ab | Scrubber |
CA2509909C (en) * | 2002-12-20 | 2011-05-24 | Fiso Technologies Inc. | Method and sensor for detecting a chemical substance using an optically anisotropic material |
US7442237B1 (en) * | 2004-09-16 | 2008-10-28 | The United States Of America As Represented By The Secretary Of The Army | Multi-agent end-of-service-life indicator for respirator filters |
DE102005026674A1 (de) * | 2005-05-31 | 2006-12-07 | M + W Zander Facility Engineering Gmbh | Verfahren zum Abscheiden von gasförmigen Bestandteilen in gasförmigen Medien sowie Filter zur Durchführung des Verfahrens |
US7651555B2 (en) * | 2005-08-17 | 2010-01-26 | Roseberry Jeffrey L | Onsite chemistry air filtration system |
US8435224B2 (en) | 2005-09-12 | 2013-05-07 | Abela Pharmaceuticals, Inc. | Materials for facilitating administration of dimethyl sulfoxide (DMSO) and related compounds |
AU2006291134C1 (en) * | 2005-09-12 | 2013-08-15 | Abela Pharmaceuticals, Inc. | Systems for removing dimethyl sulfoxide (DMSO) or related compounds, or odors associated with same |
US8882874B1 (en) * | 2005-10-13 | 2014-11-11 | Jonathan Cross | Flexible, multi-cartridge, reconfigurable/selectable air contaminant control system and method for fuel cells |
US7503962B2 (en) * | 2005-12-16 | 2009-03-17 | Attar Amir J | End of service and residual life indicator |
US8067110B2 (en) * | 2006-09-11 | 2011-11-29 | 3M Innovative Properties Company | Organic vapor sorbent protective device with thin-film indicator |
US20080069728A1 (en) * | 2006-09-17 | 2008-03-20 | Attar Amir J | System and method for analyzing samples that can be made to emit gas |
US8328903B2 (en) * | 2008-05-30 | 2012-12-11 | Scott Technologies, Inc. | Determining effluent concentration profiles and service lives of air purifying respirator cartridges |
BRPI0910150B1 (pt) * | 2008-06-30 | 2019-01-22 | 3M Innovative Properties Co | dispositivos indicadores de exposição |
US7860662B2 (en) * | 2008-12-17 | 2010-12-28 | Scott Technologies, Inc. | Systems and methods for determining filter service lives |
US8336543B2 (en) * | 2009-05-22 | 2012-12-25 | 3M Innovative Properties Company | Filter cartridge having cover for masking service life indicator |
US8365723B2 (en) * | 2009-05-22 | 2013-02-05 | 3M Innovative Properties Company | Filter cartridge having cone of visibility for end-of-service-life-indicator (ESLI) |
US8225782B2 (en) * | 2009-05-22 | 2012-07-24 | 3M Innovative Properties Company | Filter cartridge having location-registered view window for end-of-service-life-indicator (ESLI) |
US8955515B2 (en) * | 2009-10-23 | 2015-02-17 | 3M Innovative Properties Company | Patterned chemical sensor having inert occluding layer |
US9839609B2 (en) | 2009-10-30 | 2017-12-12 | Abela Pharmaceuticals, Inc. | Dimethyl sulfoxide (DMSO) and methylsulfonylmethane (MSM) formulations to treat osteoarthritis |
RU2537093C2 (ru) | 2010-04-02 | 2014-12-27 | 3М Инновейтив Пропертиз Компани | Фильтрующая система, включающая оптические датчики аналитов и оптические считывающие устройства |
US9061224B2 (en) | 2010-06-09 | 2015-06-23 | Cummins Filtration Ip Inc. | System for monitoring and indicating filter life |
BR112012020926A2 (pt) | 2010-06-17 | 2016-05-03 | Cummins Filtration Ip Inc | método para proporcionar a usuário de motor de combustão interna o intervalo de substituição de filtro de ar economicamente ótimo |
CN103068465B (zh) | 2010-08-06 | 2017-08-29 | 斯科特科技股份有限公司 | 通过可重复使用的传感器柱将化学和环境感应器集成到空气净化过滤器内的方法和装置 |
CN103119436A (zh) | 2010-09-23 | 2013-05-22 | 3M创新有限公司 | 用于气体介质的多孔化学指示物 |
EP2694952B1 (en) | 2011-03-28 | 2017-11-01 | 3M Innovative Properties Company | Sensor comprising a masking layer adhesive |
KR102027606B1 (ko) | 2011-12-12 | 2019-10-01 | 쓰리엠 이노베이티브 프로퍼티즈 캄파니 | 층상 필터 카트리지용 사용 수명 종료 표시 시스템 |
JP6370366B2 (ja) | 2013-03-15 | 2018-08-08 | スリーエム イノベイティブ プロパティズ カンパニー | 層状フィルターカートリッジのための耐用期間終了指示システム |
US10775312B2 (en) | 2017-06-15 | 2020-09-15 | Tesfa-Michael Tekleab | Instantaneous and time-lapse fluid-flow contaminant indicator |
WO2019182997A1 (en) * | 2018-03-19 | 2019-09-26 | The Regents Of The University Of California | Thin film-based dynamic structural color system for sensing, camouflage, and adaptive optics |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US595876A (en) * | 1897-12-21 | Self-indicating register | ||
CA644230A (en) * | 1962-07-03 | J. Wiswesser William | Gas mask canister | |
US1537519A (en) * | 1924-12-05 | 1925-05-12 | Yablick Max | Indicating gas-mask canister |
GB345672A (en) * | 1929-12-21 | 1931-03-23 | Leonard Angelo Levy | Method of and means for detecting water vapour |
US2034373A (en) * | 1932-06-16 | 1936-03-17 | Electrolux Corp | Vacuum cleaner |
DE694423C (de) * | 1933-12-14 | 1940-08-01 | Chem Fab Dr Hugo Stoltzenberg | Atemschutzfilter mit mehreren loesbar hintereinandergeschalteten Einzelfiltern |
FR46214E (fr) * | 1934-12-17 | 1936-04-02 | Dispositif pour la filtration des gaz nocifs, avec contrôle de l'efficacité de cette filtration et épurateur de sécurité | |
US2621753A (en) * | 1948-01-29 | 1952-12-16 | Dry Air Products Co | Unit desiccator |
US2554879A (en) * | 1949-07-12 | 1951-05-29 | Race & Race Inc | Dehumidifying device |
US2575234A (en) * | 1951-02-26 | 1951-11-13 | Jr Austin T Race | Dehumidifier |
US3171726A (en) * | 1961-09-20 | 1965-03-02 | Mine Safety Appliances Co | Gas-drying apparatus |
US3841484A (en) * | 1969-12-06 | 1974-10-15 | Hunter D Eng Ltd | Fluid filter with color indicator |
US3705480A (en) * | 1970-02-06 | 1972-12-12 | Wallace M Wireman | Dehydrator for gaseous fluids |
US3902485A (en) * | 1974-02-08 | 1975-09-02 | Richard A Wallace | Chemically activated warning system |
US3966440A (en) * | 1975-06-03 | 1976-06-29 | Catalyst Research Corporation | Colorimetric vinyl chloride indicator |
US4088461A (en) * | 1976-07-12 | 1978-05-09 | Auergesellschaft Gmbh | Combination of a supplementary filter and respirator filter |
US4155358A (en) * | 1976-12-13 | 1979-05-22 | Minnesota Mining And Manufacturing Company | Respirator |
CA1100419A (en) * | 1977-01-05 | 1981-05-05 | John A. Jones | Organic vapor respirator cartridge end-of-service indicator system and method |
US4154586A (en) * | 1978-01-13 | 1979-05-15 | American Optical Corporation | Respirator cartridge end-of-service lift indicator system and method of making |
US4278453A (en) * | 1980-02-25 | 1981-07-14 | Mako Compressors Inc. | Gas purification |
US4272480A (en) * | 1980-02-25 | 1981-06-09 | The United State Of America As Represented By The Secretary Of The Navy | Device for reducing the sensitivity of an ethylene oxide leak detector |
US4530706A (en) * | 1981-10-19 | 1985-07-23 | American Optical Corporation | Respirator cartridge end-of-service life indicator |
JPS60143817A (ja) * | 1983-12-30 | 1985-07-30 | Nippon Air Brake Co Ltd | 圧縮空気乾燥装置 |
-
1984
- 1984-12-14 DE DE19843445639 patent/DE3445639A1/de active Granted
-
1985
- 1985-12-06 GB GB08530095A patent/GB2168259B/en not_active Expired
- 1985-12-13 US US06/809,011 patent/US4684380A/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3838531A1 (de) * | 1988-11-14 | 1990-05-17 | Wolfgang Gerigk | Vorrichtung zur detektierung von verseuchter und vergifteter atemluft |
DE4132680A1 (de) * | 1991-10-01 | 1993-04-08 | Draegerwerk Ag | Atemschutzmaske mit innenhalbmaske und schadstoffindikator |
DE10261842A1 (de) * | 2002-12-20 | 2004-07-15 | Atc Dr. Mann E.K. | Farbindikationssystem und seine Verwendung |
Also Published As
Publication number | Publication date |
---|---|
GB2168259A (en) | 1986-06-18 |
GB8530095D0 (en) | 1986-01-15 |
DE3445639A1 (de) | 1986-06-26 |
US4684380A (en) | 1987-08-04 |
GB2168259B (en) | 1988-08-17 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |