Patents by Inventor Charles J. Ziegler

Charles J. Ziegler 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: 3970856
    Abstract: A handheld ultraviolet light applicator and power circuit for dental use is disclosed having a U-shaped argon filled glass ultraviolet lamp enclosed in a flat or curved lens and attached to a handle. Lamp excitation is supplied through a shielded cable from a power source having a high reactance transformer coupled to a fused safety circuit responsively cutting off power in the event of dangerous open circuit conditions.
    Type: Grant
    Filed: May 16, 1975
    Date of Patent: July 20, 1976
    Assignee: Cavitron Corporation
    Inventors: James W. Mahaffey, Charles J. Ziegler