Patent ID: 8646210

Claim:
Device for setting the position of a closing element for a porthole in an open position toward an outside around a circular opening in a wall of a room, said device comprising a protruding part with a circular shape fastened to the wall around the opening by at least one fastener, a joining part that has a first end connecting a hinged end of said closing element to the protruding part, wherein said protruding part has at least one first groove, completely encircling said opening, said joining part has a second end movable in said at least one first groove, and the movement of said second end in the at least one first groove entails movement of the closing element around said opening while the closing element is in an open position; and wherein said second end is continuously movable in said groove around the entire circumference of said opening; when said closing element is in the open position, and wherein said closing element is closable in any position around said opening from the open position.