JPH0717317Y2 - 防じんマスク - Google Patents
防じんマスクInfo
- Publication number
- JPH0717317Y2 JPH0717317Y2 JP1988111222U JP11122288U JPH0717317Y2 JP H0717317 Y2 JPH0717317 Y2 JP H0717317Y2 JP 1988111222 U JP1988111222 U JP 1988111222U JP 11122288 U JP11122288 U JP 11122288U JP H0717317 Y2 JPH0717317 Y2 JP H0717317Y2
- Authority
- JP
- Japan
- Prior art keywords
- mask
- front cover
- valve seat
- filter
- intake valve
- 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 - Lifetime
Links
- 239000000428 dust Substances 0.000 title claims description 7
- 239000000463 material Substances 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988111222U JPH0717317Y2 (ja) | 1988-08-26 | 1988-08-26 | 防じんマスク |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988111222U JPH0717317Y2 (ja) | 1988-08-26 | 1988-08-26 | 防じんマスク |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02126665U JPH02126665U (en]) | 1990-10-18 |
| JPH0717317Y2 true JPH0717317Y2 (ja) | 1995-04-26 |
Family
ID=31659713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988111222U Expired - Lifetime JPH0717317Y2 (ja) | 1988-08-26 | 1988-08-26 | 防じんマスク |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0717317Y2 (en]) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10603456B2 (en) | 2011-04-15 | 2020-03-31 | Fisher & Paykel Healthcare Limited | Interface comprising a nasal sealing portion |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5497097U (en]) * | 1977-12-20 | 1979-07-09 | ||
| JPS6041243Y2 (ja) * | 1982-02-01 | 1985-12-14 | 興研株式会社 | 防じんマスク |
| JPH0542544Y2 (en]) * | 1985-06-28 | 1993-10-26 |
-
1988
- 1988-08-26 JP JP1988111222U patent/JPH0717317Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02126665U (en]) | 1990-10-18 |