JPH045211U - - Google Patents
Info
- Publication number
- JPH045211U JPH045211U JP4383190U JP4383190U JPH045211U JP H045211 U JPH045211 U JP H045211U JP 4383190 U JP4383190 U JP 4383190U JP 4383190 U JP4383190 U JP 4383190U JP H045211 U JPH045211 U JP H045211U
- Authority
- JP
- Japan
- Prior art keywords
- threshold value
- output voltage
- sensor
- air volume
- optical sensor
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 239000000779 smoke Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 1
Landscapes
- Ventilation (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4383190U JP2503062Y2 (ja) | 1990-04-24 | 1990-04-24 | 空気清浄機 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4383190U JP2503062Y2 (ja) | 1990-04-24 | 1990-04-24 | 空気清浄機 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH045211U true JPH045211U ( ) | 1992-01-17 |
| JP2503062Y2 JP2503062Y2 (ja) | 1996-06-26 |
Family
ID=31556585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4383190U Expired - Fee Related JP2503062Y2 (ja) | 1990-04-24 | 1990-04-24 | 空気清浄機 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2503062Y2 ( ) |
-
1990
- 1990-04-24 JP JP4383190U patent/JP2503062Y2/ja not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2503062Y2 (ja) | 1996-06-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |