Patents Assigned to Aiprokon Promotie & Ontwilleling B.V.
  • Door, window or panel section
    Patent number: 5085019
    Abstract: Door- or panel section with an extruded elongate housing with C-shaped cross-section, side legs and facing end edges the central parts of the inside of the body, of the two side legs and of the end edges of the cross-section having a surface rounded according to an unscribed circle for housing a closing element, the faces adjoining them enclosing a right angle.
    Type: Grant
    Filed: November 14, 1990
    Date of Patent: February 4, 1992
    Assignee: Aiprokon Promotie & Ontwilleling B.V.
    Inventor: Frederik C. van Herpen