Patents by Inventor Christopher D. McCoway

Christopher D. McCoway 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).

  • Gas seal for pumps
    Patent number: 6182971
    Abstract: A gas seal construction for use on a pump to create a seal between the relatively rotatable pump shaft and housing. A shroud structure is disposed in close surrounding relationship to the shaft axially between the seal and the pump chamber for causing solid particles in the pump liquid to be returned to the pumping chamber.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: February 6, 2001
    Assignee: Flowserve Management Company
    Inventors: Joseph C. Parker, Christopher D. McCoway