Folding Patents (Class 351/63)
  • Patent number: 4400067
    Abstract: A spectacle frame of one-piece molded plastic construction for film-like lens, e.g., lens used in viewing 3-D movies, includes a pair of temple pieces connected by a crossbar and a lens frame and bridge piece joined to the crossbar by a hinge web. A latch integral with the crossbar engages the bridge piece when the spectacle is in use.
    Type: Grant
    Filed: December 8, 1981
    Date of Patent: August 23, 1983
    Inventor: Edward J. Joffe
  • Patent number: 4367929
    Abstract: At the ends of the front part (1) for the lenses, two principal articulations (3) with parallel axes engage two arms (7, 9) adapted to be swung back against the front part (1) and lifted from it for use on the ears. Each arm (7, 9) has a transverse articulation (10) along a transverse axis with respect to the head and common to the two arms, with the frame mounted on the face, so as to permit angulation between the parts (7, 9) of the arm and therefore inclination of the front part (1) and of the lenses along said transverse axis; the two component parts (7, 9) of the two transverse articulations (10) are frictionally connected to each other so as to maintain the inclination imposed on them and thus on the front part. The front part (1) can be folded at the center (at 5).
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: January 11, 1983
    Inventor: Umberto Fortini