Patents by Inventor Dwight Cameron Chilcoat

Dwight Cameron Chilcoat 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).

  • Downthrust pads for submersible centrifugal pumps
    Patent number: 6106224
    Abstract: A submersible centrifugal pump is claimed which includes an inner downthrust washer for receiving the downthrust load from the upward movement of the produced fluid, and an outer sealing washer, which is a non-load bearing washer, for allowing the repositioning of the impeller to prevent gaps that create recirculation.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: August 22, 2000
    Assignee: Camco International Inc.
    Inventors: Ketankumar Kantilal Sheth, Dwight Cameron Chilcoat