Patents by Inventor Janet S. Ast

Janet S. Ast 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).

  • Adjustable watch crystal apparatus
    Patent number: 7083326
    Abstract: An adjustable watch crystal apparatus includes a watch body, a flexible lens having a changeable amount of curvature, and means for adjusting the amount of curvature of the flexible lens. The flexible lens is positioned upwardly adjacent a watch face for adjustably refracting light to make the watch face legible for a user with farsighted vision. The flexible lens includes top and bottom sides having convex configurations, an outer edge, and a center. The adjusting means includes a collar member attached to the watch body for retaining the flexible lens outer edge. In one embodiment, an adjustment screw controls the curvature of the flexible lens by moving the flexible lens center between adjacent-center and displaced-center configurations. In another embodiment, the collar member moves perpendicularly to the watch face to control the curvature of the flexible lens by moving the flexible lens outer edge between displaced-edge and adjacent-edge configurations.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: August 1, 2006
    Inventors: Ryan C. Ast, Janet S. Ast