Patents by Inventor Theodore Rivers Dysart

Theodore Rivers Dysart 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).

  • Land erosion protection on a rock cutter
    Patent number: 3952815
    Abstract: Cone shell erosion between inserts is substantially reduced by positioning small, flat-topped compacts in the vulnerable cutter shell areas. At least one row of substantially outwardly projecting formation contacting inserts are located on the rock cutter. A row of substantially flush compacts are embedded in the cutter shell alternately positioned between the outwardly projecting formation contacting inserts.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: April 27, 1976
    Assignee: Dresser Industries, Inc.
    Inventor: Theodore Rivers Dysart