JPS6472127A - Air purging box - Google Patents
Air purging boxInfo
- Publication number
- JPS6472127A JPS6472127A JP22789087A JP22789087A JPS6472127A JP S6472127 A JPS6472127 A JP S6472127A JP 22789087 A JP22789087 A JP 22789087A JP 22789087 A JP22789087 A JP 22789087A JP S6472127 A JPS6472127 A JP S6472127A
- Authority
- JP
- Japan
- Prior art keywords
- air
- transparent plate
- spiral
- blown
- specific surface
- 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
Abstract
PURPOSE:To prevent a transparent plate from being stained with dust of air by covering a specific surface of the transparent plate with a spiral air layer and moving the spiral of the air away from the transparent plate. CONSTITUTION:Air outlets 29 are provided with an internal cylinder part 21 at equal intervals while surrounding the transparent plate 4 and air outlets 29 are slanted at an angle beta to the transparent so that air 28 which is discharged is blown at a distance from the transparent plate 4. Namely, the air blown out of the respective air outlets 29 is blown in contact with the peripheral surface of a virtual cylinder in the same circumferential direction, so the air surrounds peripheral air to form a spiral of air which rotates in the circumferential direction. Therefore, the specific surface of the transparent plate 4 is covered with the spiral layer of air and dust suspended on the specific surface side of the transparent plate is scattered by the layer of air. Further, air discharged from the air outlets 29 is blown leaving the transparent plate 4 and never strikes on the transparent plate 4. Consequently, the transparent plate is prevented from being stained with the dust.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22789087A JPS6472127A (en) | 1987-09-11 | 1987-09-11 | Air purging box |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22789087A JPS6472127A (en) | 1987-09-11 | 1987-09-11 | Air purging box |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6472127A true JPS6472127A (en) | 1989-03-17 |
Family
ID=16867930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22789087A Pending JPS6472127A (en) | 1987-09-11 | 1987-09-11 | Air purging box |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6472127A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008144016A3 (en) * | 2007-05-18 | 2010-02-04 | Kevin James O'kane | Element deflector for lenses, and/or method of making the same |
-
1987
- 1987-09-11 JP JP22789087A patent/JPS6472127A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008144016A3 (en) * | 2007-05-18 | 2010-02-04 | Kevin James O'kane | Element deflector for lenses, and/or method of making the same |
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