Patents by Inventor Donald William Greiner

Donald William Greiner 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).

  • Automatic darkening filter (ADF) eye protection device with improved drive circuitry
    Patent number: 8264265
    Abstract: An apparatus and methodology for operating an automatic darkening filter (ADF) eye protection device alternately applies an operating voltage to a pair of control terminals of an ADF device circuit in a continuing sequence, where a first polarity voltage is applied to the pair of terminals and then reversed. A delay period is provided between application of the alternating polarities. In some embodiments ground potential is applied to both terminals of the pair of terminals during the delay period.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: September 11, 2012
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Donald William Greiner, Thomas Joe Hamilton
  • AUTOMATIC DARKENING FILTER (ADF) EYE PROTECTION DEVICE WITH IMPROVED DRIVE CIRCUITRY
    Publication number: 20120081162
    Abstract: Disclosed is an apparatus and methodology for operating an automatic darkening filter (ADF) eye protection device. An operating voltage is alternately applied to a pair of control terminals of an ADF device circuit in a continuing sequence where a first polarity voltage is applied to the pair of terminals and then reversed. A delay period is provided between application of the alternating polarities. In some embodiments ground potential is applied to both terminals of the pair of terminals during the delay period.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 5, 2012
    Applicant: KIMBERLY-CLARK WORLDWIDE, INC.
    Inventors: DONALD WILLIAM GREINER, THOMAS JOE HAMILTON