JPH0343555Y2 - - Google Patents
Info
- Publication number
- JPH0343555Y2 JPH0343555Y2 JP1520888U JP1520888U JPH0343555Y2 JP H0343555 Y2 JPH0343555 Y2 JP H0343555Y2 JP 1520888 U JP1520888 U JP 1520888U JP 1520888 U JP1520888 U JP 1520888U JP H0343555 Y2 JPH0343555 Y2 JP H0343555Y2
- Authority
- JP
- Japan
- Prior art keywords
- opening
- open
- closing
- circuit
- signal
- 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
- 238000001514 detection method Methods 0.000 claims description 46
- 238000009423 ventilation Methods 0.000 claims description 30
- 230000008054 signal transmission Effects 0.000 claims description 16
- 230000002159 abnormal effect Effects 0.000 claims description 10
- 230000005856 abnormality Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Ventilation (AREA)
- Air-Flow Control Members (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1520888U JPH0343555Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-02-09 | 1988-02-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1520888U JPH0343555Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-02-09 | 1988-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01120033U JPH01120033U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1989-08-15 |
| JPH0343555Y2 true JPH0343555Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1991-09-12 |
Family
ID=31227063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1520888U Expired JPH0343555Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1988-02-09 | 1988-02-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0343555Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1988
- 1988-02-09 JP JP1520888U patent/JPH0343555Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01120033U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1989-08-15 |