Invention Application
US20110061823A1 COUNTERBALANCED BLIND 审中-公开
平衡黑色

  • Patent Title: COUNTERBALANCED BLIND
  • Patent Title (中): 平衡黑色
  • Application No.: US12561357
    Application Date: 2009-09-17
  • Publication No.: US20110061823A1
    Publication Date: 2011-03-17
  • Inventor: Wen-Jui Lin
  • Applicant: Wen-Jui Lin
  • Main IPC: A47H5/14
  • IPC: A47H5/14
COUNTERBALANCED BLIND
Abstract:
A counterbalanced blind has a top frame, a bottom bar, a shade mounted between the top frame and the bottom bar, a reel device, two roller devices and two cords. The reel device is mounted in the top frame, and the two roller devices are mounted on the opposite side of the reel device in the top frame. The cords are wound and fastened in the reel device, respectively extend in opposite directions to the roller devices, pass downward through the shade and are fastened on the bottom bar. The bottom bar can be raised or lowered and position of the bottom bar will be retained after releasing the bottom bar.
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