Patents by Inventor Donald T. McGrath

Donald T. McGrath 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).

  • Machine for cleansing articles
    Patent number: 5291626
    Abstract: A machine for cleansing articles, such as a dishwasher, incorporates a device for measuring the turbidity of an at least partially transparent liquid. The device includes a sensor for detecting scattered electromagnetic radiation, regardless of polarization, and a sensor for detecting transmitted electromagnetic radiation, regardless of polarization.
    Type: Grant
    Filed: May 1, 1992
    Date of Patent: March 8, 1994
    Assignee: General Electric Company
    Inventors: Barbara D. Molnar, Donald T. McGrath, Mark E. Dausch, Vivek V. Badami, Walter Whipple, III
  • Sensor holder for a machine for cleansing articles
    Patent number: 5259219
    Abstract: This invention relates to a holder for turbidity sensors of the type used in machines for cleansing articles. Such structures of this type, generally, allow the turbidity of the liquid employed in the cleansing of the articles to be accurately measured without affecting the performance capacity of the sensor.
    Type: Grant
    Filed: May 1, 1992
    Date of Patent: November 9, 1993
    Assignee: General Electric Company
    Inventors: Mark E. Dausch, Donald T. McGrath, Walter Whipple, III, Terry C. Cooper