Patents by Inventor E. J. Dockal

E. J. Dockal 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: 4239352
    Abstract: A head-supported optic shield protects the eyes of the wearer and eliminates the need to wear glasses while working. The optic shield comprises a porous, ventilated cap having an annular supporting member or brim and an adjustable chin strap. The supporting member or brim includes an outwardly extending peripheral flange which cooperated with and supports the supporting flange portion of a cylindrical shield. The cylindrical shield is of clear, transparent safety glass or optical quality plastic with three lens portions, viz. clear, close magnification, and distance magnification. The supporting flange on the optical shield has a notch which cooperates with a positioning abutment on the brim so that the cylindrical shield may be rotated and temporarily fixed in a predetermined position with any one of the lenses in front of the eyes of the wearer. An auxiliary welding shield is provided.
    Type: Grant
    Filed: July 20, 1979
    Date of Patent: December 16, 1980
    Inventor: E. J. Dockal