JPH0221060Y2 - - Google Patents
Info
- Publication number
- JPH0221060Y2 JPH0221060Y2 JP6375786U JP6375786U JPH0221060Y2 JP H0221060 Y2 JPH0221060 Y2 JP H0221060Y2 JP 6375786 U JP6375786 U JP 6375786U JP 6375786 U JP6375786 U JP 6375786U JP H0221060 Y2 JPH0221060 Y2 JP H0221060Y2
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric vibrator
- ventilation hole
- goggles
- plate
- oscillator
- 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 23
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000000919 ceramic Substances 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- Respiratory Apparatuses And Protective Means (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6375786U JPH0221060Y2 (mo) | 1986-04-25 | 1986-04-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6375786U JPH0221060Y2 (mo) | 1986-04-25 | 1986-04-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62174523U JPS62174523U (mo) | 1987-11-06 |
| JPH0221060Y2 true JPH0221060Y2 (mo) | 1990-06-07 |
Family
ID=30899283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6375786U Expired JPH0221060Y2 (mo) | 1986-04-25 | 1986-04-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221060Y2 (mo) |
-
1986
- 1986-04-25 JP JP6375786U patent/JPH0221060Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62174523U (mo) | 1987-11-06 |
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