Patents Examined by David M. Porol
  • Reversible slatted shutter
    Patent number: 5722476
    Abstract: A reversible shutter includes slats mounted between lateral guides and includes at the ends of the slats sliding elements which run through the lateral guides and through connected labyrinthian guides located within a shutter box. Each labyrinthian guide includes an inlet and an outlet which are connected to the respective lateral guide. During rolling and unrolling of the slatted shutter, the front face and the back face of the slats are exposed, making it possible to clean both faces of the slatted shutter from one side.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: March 3, 1998
    Assignee: Ceraper S.L.
    Inventors: Francisco Lujan-Sanchez, Emiliano Martin-Gomez
  • Bifold door
    Patent number: 5647423
    Abstract: A bifold door comprises a pair of door panels 12.1, 12.2 joined to one another along a centre hinge 14. Each door panel, at the end thereof remote from the center hinge, is supported on a track 16 by a runner assembly 18 to which the door panel is pivotally connected. Each runner assembly is provided with a cam 32 whereby the runner assembly can releasably be locked in position with respect to the track.
    Type: Grant
    Filed: January 3, 1995
    Date of Patent: July 15, 1997
    Inventor: Uwe Harms