Rack And Pinion Patents (Class 16/195)
  • Patent number: 8434265
    Abstract: A window operator moves a sash between an open and closed position. The window operator includes a track member and a sliding member. A gear member has a second end adapted and configured to be operatively connected to the window sash and a first end has a plurality of radially spaced gear members. A rack member is positioned proximate the track and is positioned to engage the gear teeth. One of the gear members and rack member is operatively connected to the sliding member. The other is positioned proximate the track and has no longitudinal movement relative to the track. A drive member is connected to the sliding member, wherein actuation of the drive member moves the sliding member longitudinally and causes the gear teeth to engage the track, thereby resulting in rotational movement of a gear member to move the sash between an open and closed position.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: May 7, 2013
    Inventors: Frank W. Campbell, John J. Micinski