Patents by Inventor Dana E. Gingrich

Dana E. Gingrich 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).

  • Fluid treatment process
    Patent number: 5578213
    Abstract: The present invention provides a method of treating wastewater containing particulate matter and free oil, which method comprises removing free oil from the wastewater, passing the wastewater through a first filtration medium having an effective pore rating of about 200 .mu.m or less, subjecting the wastewater to dynamic filtration utilizing a second filtration medium having an effective pore rating of about 5 .mu.m or less, and contacting the wastewater with an adsorbent bed to form a purified water stream. The present invention also provides an apparatus which can be used to carry out the present inventive method.
    Type: Grant
    Filed: March 16, 1995
    Date of Patent: November 26, 1996
    Assignee: Pall Corporation
    Inventors: John D. Miller, Dana E. Gingrich, Donald H. White, Jr.
  • Fluid treatment process using dynamic microfiltration and ultrafiltration
    Patent number: 5374356
    Abstract: A method of treating wastewater by passing wastewater into a dynamic microfiltration assembly to form a first concentrate stream and a filtrate stream and then passing the filtrate steam into an ultrafiltration assembly to form a second concentrate stream and a purified water stream.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: December 20, 1994
    Assignee: Pall Corporation
    Inventors: John D. Miller, P. Glenn Barkley, Donald H. White, Jr., Dana E. Gingrich
  • Regenerable sorbent system
    Patent number: 5281344
    Abstract: A process and apparatus for treating contaminated water involving passing water containing contaminants as a stream through a filter to remove the contaminants and form a purified water stream, directing the purified water stream to an effluent discharge outlet and accumulating a portion of the purified water in a reservoir under pressure, preferably through action of a trapped air pocket in the reservoir, and regenerating the filter by using the purified water in the reservoir to back-flush the filter.
    Type: Grant
    Filed: January 23, 1992
    Date of Patent: January 25, 1994
    Assignee: Pall Corporation
    Inventors: John P. Miller, P. Glenn Barkley, Dana E. Gingrich, Donald H. White, Jr.