Patents by Inventor Gordon L. Campbell

Gordon L. Campbell 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).

  • Doctor blade cleaning assembly
    Patent number: 4146484
    Abstract: A doctor blade assembly for use with a rotating cylinder includes a doctor blade extending axially adjacent the cylinder outer surface and a blade cleaner extending parallel to and adjacent the doctor blade. The blade cleaner is pivotally supported on the doctor blade assembly and there are cooperating means on the cylinder and blade cleaner support for causing intermittent movement of the blade cleaner in a path along the doctor blade upper surface.
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: March 27, 1979
    Assignee: Hycor Corporation
    Inventor: Gordon L. Campbell