Patents Assigned to Standard Chair of Gardner, Inc.
  • Laser engraving method
    Patent number: 4947022
    Abstract: A workpiece having a curved surface is laser engraved by being manipulated in a single plane while maintaining the focal point of the laser beam at a plane corresponding to the average working distance between the surface being engraved and the laser's focusing lens.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: August 7, 1990
    Assignee: Standard Chair of Gardner, Inc.
    Inventors: Melvin G. Ostroff, Steven K. Ostroff