JPH0348459Y2 - - Google Patents
Info
- Publication number
- JPH0348459Y2 JPH0348459Y2 JP10225786U JP10225786U JPH0348459Y2 JP H0348459 Y2 JPH0348459 Y2 JP H0348459Y2 JP 10225786 U JP10225786 U JP 10225786U JP 10225786 U JP10225786 U JP 10225786U JP H0348459 Y2 JPH0348459 Y2 JP H0348459Y2
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- center member
- water
- container
- ventilation
- 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 17
- 239000000463 material Substances 0.000 claims description 10
- 239000005871 repellent Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- -1 Ethylene-tetrafluoroethylene Chemical group 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920000840 ethylene tetrafluoroethylene copolymer Polymers 0.000 description 2
- 230000002940 repellent Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 229920006026 co-polymeric resin Polymers 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10225786U JPH0348459Y2 (en]) | 1986-07-03 | 1986-07-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10225786U JPH0348459Y2 (en]) | 1986-07-03 | 1986-07-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS638484U JPS638484U (en]) | 1988-01-20 |
| JPH0348459Y2 true JPH0348459Y2 (en]) | 1991-10-16 |
Family
ID=30973744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10225786U Expired JPH0348459Y2 (en]) | 1986-07-03 | 1986-07-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348459Y2 (en]) |
-
1986
- 1986-07-03 JP JP10225786U patent/JPH0348459Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS638484U (en]) | 1988-01-20 |
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