Patents by Inventor James (Jimmy) Haythornthwaite

James (Jimmy) Haythornthwaite 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).

  • Patent number: 5647982
    Abstract: A filter element for use in a rotating vacuum filter assembly is provided. It has frame having an inner end, an outer end and intermediate sides which define the perimeter of opposed substantially parallel filter regions and a central filter chamber, wherein the inner end is adapted for mounting the frame to a hollow central hub and wherein the inner end defines a central passage which cooperates with a corresponding passage in the hub for communication between the filter chamber and the interior of the hub.
    Type: Grant
    Filed: May 10, 1995
    Date of Patent: July 15, 1997
    Inventor: James (Jimmy) Haythornthwaite