Abstract: A brake arrangement, for a retractable screen arrangement in which the a screen roller applies a retraction force to the screen and brake arrangement, includes a brake arrangement, for providing a braking force between the brake arrangement and a track which guides the brake arrangement, to resist retraction. The brake arrangement provides a brake member with a friction surface for contacting the bearing surface; a brake member support for supporting the brake member; and a forcing arrangement for forcing the friction surface against the bearing surface. The forcing arrangement includes a biasing arrangement for biasing the friction surface onto the bearing surface, and a force-increasing arrangement for increasing the force with which the friction surface engages the bearing surface. The force increasing arrangement converts a frictional force between the friction surface and the track into additional contact pressure force of the friction surface onto the guide track.
Abstract: A window treatment system and method of installing the system are provided. The system includes a first and a second u-track positioned on opposite sides of a window frame. A first support rod and a second support rod each have a first end positioned in the first u-track and a second end positioned in the second u-track. A shade is coupled to the first and the second support rods and the rods frictionally support the shade and rods within the window frame. The method includes attaching a first u-track to a first side of a window frame and attaching a second u-track to a second, opposing side of a window frame. A shade is installed on the first and second support rods. A first end of a first and second support rod is inserted into the first u-shaped track and a second end of the first and second support rods are inserted in the second u-shaped track.
Type:
Grant
Filed:
September 18, 2009
Date of Patent:
April 14, 2015
Inventors:
Matthew S. Douglas, Benjamin L. Douglas