JPS62189543U - - Google Patents
Info
- Publication number
- JPS62189543U JPS62189543U JP7721586U JP7721586U JPS62189543U JP S62189543 U JPS62189543 U JP S62189543U JP 7721586 U JP7721586 U JP 7721586U JP 7721586 U JP7721586 U JP 7721586U JP S62189543 U JPS62189543 U JP S62189543U
- Authority
- JP
- Japan
- Prior art keywords
- shutter plate
- rotation assisting
- assisting weight
- damper device
- weight
- 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
- 238000009423 ventilation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
Landscapes
- Air-Flow Control Members (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7721586U JPS62189543U (cs) | 1986-05-22 | 1986-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7721586U JPS62189543U (cs) | 1986-05-22 | 1986-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62189543U true JPS62189543U (cs) | 1987-12-02 |
Family
ID=30925015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7721586U Pending JPS62189543U (cs) | 1986-05-22 | 1986-05-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62189543U (cs) |
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1986
- 1986-05-22 JP JP7721586U patent/JPS62189543U/ja active Pending