Patents by Inventor Ernest E. van Ham

Ernest E. van Ham 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: 4043238
    Abstract: A cutting implement having a plate with a curved, sharpened edge which is rotated to traverse the location of a work piece. The plate is shaped so that the rate of advance of the sharpened edge through the location decreases as the angle of rotation increases, thereby compensating for the gradual reduction in the mechanical advantage, and producing a nearly constant power requirement.
    Type: Grant
    Filed: April 21, 1976
    Date of Patent: August 23, 1977
    Assignee: Sanders Associates, Inc.
    Inventor: Ernest E. van Ham