发明申请
US20160320292A1 METHOD AND DEVICE FOR CLEANING AN OPTICAL ENTRANCE WINDOW OF A FIRE ALARM 审中-公开
用于清除火灾报警的光学入口窗口的方法和装置

  • 专利标题: METHOD AND DEVICE FOR CLEANING AN OPTICAL ENTRANCE WINDOW OF A FIRE ALARM
  • 专利标题(中): 用于清除火灾报警的光学入口窗口的方法和装置
  • 申请号: US15102561
    申请日: 2014-11-13
  • 公开(公告)号: US20160320292A1
    公开(公告)日: 2016-11-03
  • 发明人: Arne STAMER
  • 申请人: MINIMAX GMBH & CO. KG
  • 优先权: EP13197886.8 20131217
  • 国际申请: PCT/EP2014/074529 WO 20141113
  • 主分类号: G01N21/15
  • IPC分类号: G01N21/15 B08B5/02 G02B27/00 G08B17/00
METHOD AND DEVICE FOR CLEANING AN OPTICAL ENTRANCE WINDOW OF A FIRE ALARM
摘要:
A method is provided for cleaning an optical entry window (1) of a fire detector (2), wherein an intermittent gas stream is discharged from at least one gas exit opening (7) onto the surface of the optical entry window (1) of the fire detector (2), wherein the intermittent gas stream having a number of pressure pulses (14) is discharged onto the optical entry window (1), and to an apparatus for cleaning an optical entry window. The method has the advantage that the optical entry window of a fire detector can be cleaned from contamination intermittently and corresponding to the intensity of contamination with a matched and low consumption of gas.
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