JPS6472127A - Air purging box - Google Patents

Air purging box

Info

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
Application number
JP22789087A
Other languages
Japanese (ja)
Inventor
Akira Tanaka
Masato Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Toshiba Telecommunication System Engineering Corp
Original Assignee
Toshiba Corp
Toshiba Telecommunication System Engineering Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Toshiba Telecommunication System Engineering Corp filed Critical Toshiba Corp
Priority to JP22789087A priority Critical patent/JPS6472127A/en
Publication of JPS6472127A publication Critical patent/JPS6472127A/en
Pending legal-status Critical Current

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.
JP22789087A 1987-09-11 1987-09-11 Air purging box Pending JPS6472127A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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