Patents Assigned to Sipal, SA
  • Longitudinally adjustable bow for glasses
    Patent number: 5056907
    Abstract: A longitudinally adjustable bow for classes having two sections. A first bow section is formed as a closed hollow section having at least one catch. The second bow section is slidably guided in the first bow section, and has a plurality of stop notches which face and engage the catch and a turned-back extension at its inner end forming a pre-stressed spring facing away from the catch, against the force of which the second bow section can be moved relative to the first bow section for disengagement of the stop notches.
    Type: Grant
    Filed: May 2, 1990
    Date of Patent: October 15, 1991
    Assignee: Sipal, SA
    Inventor: Karl Weber