Rimless Mounting Patents (Class 351/110)
  • Patent number: 4685781
    Abstract: This invention relates to spectacles in which are spectacle lens is connected to an individual component, for example a flange, by means of a fatening device. In the spectacle lens the two ends of a borehole are expanded into two borehole widenings which are engaged with a first protrusion on the flange and with a connecting element that is connected to a pin leading to the first protrusion. In addition, the flange has two further protrusions supporting themselves on the border of the spectacle lens, so that a four-point anchoring of the flange secured by the pin against pulling and by the additional protrusions against rotating is furnished on the spectacle lens and vice versa. A certain flange is suitable for given thicknesses and curvatures of the spectacle lens, because both on the front side and the back side of the spectacle lens it is not the front or back sides that define the gripping surfaces for the connecting element and first protrusion, but the borehole widening.
    Type: Grant
    Filed: November 20, 1984
    Date of Patent: August 11, 1987
    Assignee: Simro AG
    Inventors: Helmut Wiedmann, Gunther Czech
  • Patent number: 4502765
    Abstract: A lens support system (10) for rigidly securing a lens (12, 12') to a bridge mounting member (14) or an end piece member (14'). The lens (12, 12') includes a longitudinally extended slot (28) passing through the lens (12, 12') in a vertical direction (18) and defining longitudinally displaced end sections (30 and 32). The lens support system (10) includes a pair of vertically extending post members (50 and 52) which are mounted on an annular disk member (34) having a central opening (44). The post members (50 and 52) extend through the slot (28) and the post members (50, 52) matingly engage the end sections (30, 32) of the slot (28). The longitudinally displaced post members (50 and 52) prevent rotation of the lens (12, 12') about a vertical axis.
    Type: Grant
    Filed: May 13, 1982
    Date of Patent: March 5, 1985
    Inventor: George F. Cooper
  • Patent number: 3944344
    Abstract: A spectacle structure having a plurality of flexible portions formed in head engaging components thereof is disclosed wherein the flexible portions permit unidirectional bending of the head engaging components of the spectacle structure to thereby conform to and exert inwardly directed pressures on the head of the person to support the spectacle structure thereon, said spectacle structure engaging the head portions for support with an absence of support by the nose or ears. The spectacle structure includes lens means depending from a front frame member and a pair of elongated temple members hingedly connected to respective opposite end portions of the front frame member. The head engaging components of the spectacle structure are of a combined length such that one of the temple members is in crossing and overlying relation with the other of the temple members when in an open and relaxed position.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: March 16, 1976
    Inventor: Max F. Wichers