JPH0427069Y2 - - Google Patents
Info
- Publication number
- JPH0427069Y2 JPH0427069Y2 JP17240987U JP17240987U JPH0427069Y2 JP H0427069 Y2 JPH0427069 Y2 JP H0427069Y2 JP 17240987 U JP17240987 U JP 17240987U JP 17240987 U JP17240987 U JP 17240987U JP H0427069 Y2 JPH0427069 Y2 JP H0427069Y2
- Authority
- JP
- Japan
- Prior art keywords
- switch
- ventilation hole
- plane part
- plane
- 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
- 238000009423 ventilation Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17240987U JPH0427069Y2 (en]) | 1987-11-11 | 1987-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17240987U JPH0427069Y2 (en]) | 1987-11-11 | 1987-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0177235U JPH0177235U (en]) | 1989-05-24 |
| JPH0427069Y2 true JPH0427069Y2 (en]) | 1992-06-29 |
Family
ID=31464382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17240987U Expired JPH0427069Y2 (en]) | 1987-11-11 | 1987-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0427069Y2 (en]) |
-
1987
- 1987-11-11 JP JP17240987U patent/JPH0427069Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0177235U (en]) | 1989-05-24 |
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