Patents Assigned to Feal S.p.A.
  • Thermally insulated aluminum door or window frame
    Patent number: 4344254
    Abstract: A metal door or window frame comprises mobile and fixed frameworks each formed by a sub-frame including a substantially tubular section effective to be positioned on the side thereof facing the room interior and a cover section effective to be positioned on the side thereof facing outwards, between the sub-frames and the cover sections insulating material elements being provided for defining an uninterrupted heat insulating barrier therebetween.
    Type: Grant
    Filed: March 24, 1980
    Date of Patent: August 17, 1982
    Assignee: Feal S.p.A.
    Inventor: Giovanni Varlonga