Patents Assigned to Aprimatic S.p.A.
  • Patent number: 5373663
    Abstract: An overhead swinging door is swingably mounted on two side supports slidable in two vertical guides and each connected to a counterweight by a cable re-directed over an upper pulley. On at least one of the door sides, the counterweight is also connected to the respective side support by a chain which forms an endless ring with the cable and is re-directed over a lower wheel driven by a motor and reducing gear unit which is preferably located within the side upright of the door frame.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: December 20, 1994
    Assignee: Aprimatic S.p.A.
    Inventor: Alessandro Turini