Patents Assigned to Martin-Copeland Company
  • Patent number: 4187007
    Abstract: An eyeglass construction in which the separate lenses thereof are directly attached to a laterally extending brow bar includes a pair of rearwardly extending threaded posts adapted to pass through spaced openings in the upper peripheral portion of each lens whereby the lenses and brow bar are affixed to each other by nuts engaging said threaded posts, said openings and posts extending substantially perpendicular to the rear plane of each lens. Each of the posts is adapted to extend through a spacing bushing disposed between the opposed lens and brow bar surfaces such that the lenses and the brow bar are spaced away from each other, thus providing clearance between the lens and the brow bar, even at the point of maximum curvature of the lens. The length of the bushings may be modified such that varying lens curvatures may be facilitated and still maintained out of contact with the brow bar.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: February 5, 1980
    Assignee: Martin-Copeland Company
    Inventor: John R. Lauffer