Patents by Inventor Robert P. Darling

Robert P. Darling 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).

  • Variable position orbital sander
    Patent number: 4470225
    Abstract: A machine which orbits an abrader or cleaning tool about a fixed axis at a relatively low speed in which the orbital radius of the abrader may be changed while the machine is in operation.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: September 11, 1984
    Assignee: Grumman Aerospace Corporation
    Inventors: Robert P. Darling, Leonard J. Ober