JPS6218156U - - Google Patents
Info
- Publication number
- JPS6218156U JPS6218156U JP10436686U JP10436686U JPS6218156U JP S6218156 U JPS6218156 U JP S6218156U JP 10436686 U JP10436686 U JP 10436686U JP 10436686 U JP10436686 U JP 10436686U JP S6218156 U JPS6218156 U JP S6218156U
- Authority
- JP
- Japan
- Prior art keywords
- indicator
- organic vapor
- utility
- time indicating
- gas
- 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.)
- Pending
Links
- 230000002745 absorbent Effects 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 3
- 230000003647 oxidation Effects 0.000 claims 3
- 238000007254 oxidation reaction Methods 0.000 claims 3
- 239000000741 silica gel Substances 0.000 claims 3
- 229910002027 silica gel Inorganic materials 0.000 claims 3
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 claims 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000000241 respiratory effect Effects 0.000 description 1
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
Description
第１図は本考案による消尽時期指示装置を含む
有機蒸気／ガス用呼吸マスクカートリツジの側面
図、第２図は第１図の線２―２による拡大断面図
で、第３図は第２図の線３―３から矢印方向に見
た部分的断面図である。
１０…呼吸マスクカートリツジ、１２…指示薬
、１４…多孔性担体、１６…カートリツジ吸収剤
、１８…カートリツジ缶、２０…開口部、２２…
透明窓、２４…有孔障壁、２６…有孔蓋、２８…
有孔底板、３０，３２…パツド。
FIG. 1 is a side view of an organic vapor/gas respirator cartridge including an exhaustion time indicating device according to the present invention, FIG. 2 is an enlarged sectional view taken along line 2--2 in FIG. 1, and FIG. 3 is a partial cross-sectional view taken along line 3-3 in the figure in the direction of the arrow; FIG. DESCRIPTION OF SYMBOLS 10... Respiratory mask cartridge, 12... Indicator, 14... Porous carrier, 16... Cartridge absorbent, 18... Cartridge can, 20... Opening, 22...
Transparent window, 24... Perforated barrier, 26... Perforated lid, 28...
Perforated bottom plate, 30, 32... padded.
Claims (1)
を有する呼吸マスクカートリツジにおいて： 吸入に安全とされている限界値よりかなり低い
濃度の有機蒸気／ガスに対する曝露と同時に明瞭
な色彩変化を起こす有機蒸気／ガス酸化用指示薬
； 該指示薬を支持するかなり大きい深さを有し、
かつ多孔性で内部に前記指示薬を支持する半透明
担体；及び 上記缶に設けられ、前記半透明担体の深さ全体
にわたつて前記指示薬を観察して該指示薬の色彩
変化を容易に認識できる窓装置； を含む有機蒸気／ガス呼吸マスクカートリツジの
消尽時期指示装置。 ２ 半透明担体が多孔性粒状シリカゲルで、有機
蒸気／ガス酸化用指示薬が該シリカゲルの表面及
び内部に支持され、かつ重クロム酸ナトリウム、
硫酸及び水の配合物からなり、この配合物から液
体成分が蒸発された実用新案登録請求の範囲第１
項記載の消尽時期指示装置。 ３ 重クロム酸カリウムを重クロム酸ナトリウム
の代りに使用する実用新案登録請求の範囲第２項
記載の消尽時期指示装置。 ４ 有機蒸気／ガス酸化用指示薬がほぼ次の成分
比率： Ｎａ２Ｃｒ２Ｏ７ ３０ｇ 濃Ｈ２ＳＯ４ ３０ｍ 蒸留Ｈ２Ｏ ２００ｍ シリカゲル ４０ｇ で配合される実用新案登録請求の範囲第２項記
載の消尽時期指示装置。 ５ 吸収剤支持用缶が窓装置に隣接する有効障壁
装置を含み、該障壁装置は半透明の担体を所定位
置に保持し、かつ有機蒸気／ガス用吸収剤との混
合を防止する、実用新案登録請求の範囲第１項記
載の消尽時期指示装置。[Claims for Utility Model Registration] 1. In a respirator cartridge having a can internally supporting an absorbent for organic vapors/gases: Exposure to organic vapors/gases at concentrations significantly lower than the limits considered safe for inhalation. an indicator for organic vapor/gas oxidation that simultaneously produces a distinct color change; having a fairly large depth supporting the indicator;
a translucent carrier that is porous and supports the indicator therein; and a window provided in the can, through which the indicator can be observed throughout the entire depth of the translucent carrier and the color change of the indicator can be easily recognized. A device for indicating the expiration date of an organic vapor/gas respirator cartridge containing: 2. The translucent carrier is a porous granular silica gel, an indicator for organic vapor/gas oxidation is supported on and inside the silica gel, and sodium dichromate,
Utility model registration claim 1 consists of a mixture of sulfuric acid and water, from which the liquid component is evaporated.
Exhaustion time indicating device as described in section. 3. The exhaustion time indicating device according to claim 2 of the utility model registration, in which potassium dichromate is used in place of sodium dichromate. 4. The organic vapor/gas oxidation indicator is formulated with approximately the following component ratio: 30 g of Na 2 Cr 2 O 7 30 m of concentrated H 2 SO 4 200 m of distilled H 2 O 40 g of silica gel Exhaustion time indicating device. 5 Utility Model Where the Absorbent Supporting Can Contains an Effective Barrier Device Adjacent to the Window Device, Which Barrier Device Holds the Translucent Support in Place and Prevents Mixing with the Organic Vapor/Gas Absorbent An exhaustion time indicating device according to claim 1 of the registered claim.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75710577A | 1977-01-05 | 1977-01-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6218156U true JPS6218156U (en) | 1987-02-03 |
Family
ID=25046371
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15675977A Pending JPS5385993A (en) | 1977-01-05 | 1977-12-27 | Method and device for indicating time of entire consumption of organic vapor*gas breathing mask cartridge |
| JP10436686U Pending JPS6218156U (en) | 1977-01-05 | 1986-07-09 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15675977A Pending JPS5385993A (en) | 1977-01-05 | 1977-12-27 | Method and device for indicating time of entire consumption of organic vapor*gas breathing mask cartridge |
Country Status (6)
| Country | Link |
|---|---|
| JP (2) | JPS5385993A (en) |
| BR (1) | BR7800046A (en) |
| CA (1) | CA1100419A (en) |
| DE (1) | DE2758603A1 (en) |
| GB (1) | GB1554542A (en) |
| HK (1) | HK22181A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0219175A (en) * | 1988-05-17 | 1990-01-23 | Minnesota Mining & Mfg Co <3M> | Filter element |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4326514A (en) * | 1980-06-20 | 1982-04-27 | Minnesota Mining And Manufacturing Company | Cartridge respirator with service life indicator |
| US4365627A (en) * | 1980-09-22 | 1982-12-28 | The Dow Chemical Company | Filter-type respirator canister |
| GB2119659B (en) * | 1982-04-28 | 1985-10-02 | Mine Safety Appliances Co | Breathing device having irreversible moisture indicator |
| DE3445639A1 (en) * | 1984-12-14 | 1986-06-26 | Drägerwerk AG, 2400 Lübeck | COLORIMETRIC INDICATOR TO INDICATE THE EXHAUST OF GAS FILTERS |
| DE3610492A1 (en) * | 1986-03-27 | 1987-10-01 | Draegerwerk Ag | RESPIRATOR |
| WO1994019056A1 (en) * | 1993-02-27 | 1994-09-01 | Paul Hartmann Ag | Respiratory system protection |
| US5634426A (en) * | 1995-02-22 | 1997-06-03 | Tomlinson; Bruce | Absorption depletion indicators for anesthetic gas administration systems |
| 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 |
| US8955515B2 (en) * | 2009-10-23 | 2015-02-17 | 3M Innovative Properties Company | Patterned chemical sensor having inert occluding layer |
| US9192795B2 (en) | 2011-10-07 | 2015-11-24 | Honeywell International Inc. | System and method of calibration in a powered air purifying respirator |
| US9808656B2 (en) | 2012-01-09 | 2017-11-07 | Honeywell International Inc. | System and method of oxygen deficiency warning in a powered air purifying respirator |
| US9751038B2 (en) | 2013-03-15 | 2017-09-05 | 3M Innovative Properties Company | End of service life indicating systems for layered filter cartridges |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1725893A (en) * | 1924-12-05 | 1929-08-27 | Mine Safety Appliances Co | Indicating gas-mask canister |
| US3966440A (en) * | 1975-06-03 | 1976-06-29 | Catalyst Research Corporation | Colorimetric vinyl chloride indicator |
-
1977
- 1977-12-20 CA CA293,496A patent/CA1100419A/en not_active Expired
- 1977-12-27 JP JP15675977A patent/JPS5385993A/en active Pending
- 1977-12-27 DE DE19772758603 patent/DE2758603A1/en not_active Ceased
-
1978
- 1978-01-03 GB GB7178A patent/GB1554542A/en not_active Expired
- 1978-01-04 BR BR7800046A patent/BR7800046A/en unknown
-
1981
- 1981-05-21 HK HK22181A patent/HK22181A/en unknown
-
1986
- 1986-07-09 JP JP10436686U patent/JPS6218156U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0219175A (en) * | 1988-05-17 | 1990-01-23 | Minnesota Mining & Mfg Co <3M> | Filter element |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5385993A (en) | 1978-07-28 |
| GB1554542A (en) | 1979-10-24 |
| DE2758603A1 (en) | 1978-07-20 |
| HK22181A (en) | 1981-05-29 |
| BR7800046A (en) | 1978-08-15 |
| CA1100419A (en) | 1981-05-05 |
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