JPS58184067U - Air damper for backflow prevention - Google Patents

Air damper for backflow prevention

Info

Publication number
JPS58184067U
JPS58184067U JP8112482U JP8112482U JPS58184067U JP S58184067 U JPS58184067 U JP S58184067U JP 8112482 U JP8112482 U JP 8112482U JP 8112482 U JP8112482 U JP 8112482U JP S58184067 U JPS58184067 U JP S58184067U
Authority
JP
Japan
Prior art keywords
air damper
backflow prevention
blade
rotating shaft
same direction
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
JP8112482U
Other languages
Japanese (ja)
Inventor
正田　英夫
Original Assignee
日本電気株式会社
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 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP8112482U priority Critical patent/JPS58184067U/en
Publication of JPS58184067U publication Critical patent/JPS58184067U/en
Pending legal-status Critical Current

Links

Landscapes

  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Check Valves (AREA)
  • Air-Flow Control Members (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は、従来の逆流防止用エアーダンパーの斜視図で
ある。第２図は、本考案による逆流防止用エアーダンパ
ーの斜視図である。 １・・・・・・ダクト、２・・・・・・羽根、３・・・
・・・回転シャフト、４・・・・・・羽根の回転を制限
するストッパ、５・・・・・・指針。FIG. 1 is a perspective view of a conventional backflow prevention air damper. FIG. 2 is a perspective view of the air damper for preventing backflow according to the present invention. 1...Duct, 2...Blade, 3...
... Rotating shaft, 4 ... Stopper that limits the rotation of the blade, 5 ... Pointer.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 風圧力により回転する羽根と、この羽根が固定されてい
る回転シャフトとを有するエアダンパー°　において、
前記回転シャフトの外部延長部の少なくとも一端に前記
羽根と同一方向を示す指針を取付けたことを特徴とする
逆流防止用エアーダンパＯAn air damper that has a blade that rotates due to wind pressure and a rotating shaft to which the blade is fixed,
An air damper O for preventing backflow, characterized in that a pointer pointing in the same direction as the blade is attached to at least one end of the external extension of the rotating shaft.
JP8112482U 1982-06-01 1982-06-01 Air damper for backflow prevention Pending JPS58184067U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8112482U JPS58184067U (en) 1982-06-01 1982-06-01 Air damper for backflow prevention

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8112482U JPS58184067U (en) 1982-06-01 1982-06-01 Air damper for backflow prevention

Publications (1)

Publication Number Publication Date
JPS58184067U true JPS58184067U (en) 1983-12-07

Family

ID=30090251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8112482U Pending JPS58184067U (en) 1982-06-01 1982-06-01 Air damper for backflow prevention

Country Status (1)

Country Link
JP (1) JPS58184067U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074947A1 (en) * 2002-03-07 2003-09-12 Fujitsu Limited Backflow preventer and electronic apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003074947A1 (en) * 2002-03-07 2003-09-12 Fujitsu Limited Backflow preventer and electronic apparatus

Similar Documents

Publication Publication Date Title
JPS58184067U (en) Air damper for backflow prevention
JPS58165201U (en) Turbine blade seal structure
JPS5938635U (en) Backflow prevention shutter
JPS5954794U (en) Fan unit with auxiliary fan
JPS59170696U (en) ventilation fan
JPS58116868U (en) labyrinth seal
JPS5974832U (en) Stirring device
JPS6143998U (en) two way fan
JPS5892402U (en) Steam turbine rotor stabilization device
JPS5925040U (en) Damper opening/closing device
JPS5992259U (en) Oil seal dust intrusion prevention device
JPS5941840U (en) timer device
JPS60174776U (en) door cover
JPS58172723U (en) air conditioner
JPS5863055U (en) cyclone classifier
JPS5985421U (en) Propeller shaft center bearing seal device
JPS58158197U (en) axial blower
JPS58146403U (en) agricultural rotary
JPS59168068U (en) damper device
JPS59160888U (en) Axial blower blade shaft bearing structure
JPS5965902U (en) turbine rotor
JPS5839446U (en) Vertical blades for blower equipment
JPS6099914U (en) toothpick
JPS6061163U (en) driver
JPS6050902U (en) hand hair dryer fan