Patents by Inventor Charles Debon

Charles Debon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5430504
    Abstract: A device for manufacturing bifocal contact lenses is provided. It comprises a rotating head stock provided with an eccentric head supporting a lense holder for holding a lense blank. The lense holder is displaceable with respect to said eccentric head in a radial direction perpendicular to the axis of rotation. A sled is provided for supporting a cutting tool. Said sled pivotable around an axis which coincides with said axis of rotation and in addition displaceable to change the radii.For avoiding a step which would result at the junction line dividing the distant vision segment and the near vision segment, a control is provided for adjusting the tool to a first radius R1 for cutting the distant vision segment and for adjusting said tool to a second radius R2 for cutting said near vision segment. After cutting the distant vision segment during a first operation, the near vision segment is cut during a second operation such that a continuous transition is achieved between both segments.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: July 4, 1995
    Assignee: Hecht Contactlinsen GmbH
    Inventors: Dieter Muckenhirn, Charles Debon