Patents by Inventor Roy C. Stroud

Roy C. Stroud 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: 5022762
    Abstract: An apparatus for optically inspecting printer die motifs, with the inspection including measuring the length, width, and depth of motifs, and measuring the circumferential separation of two motifs when more than one motif is disposed on the same printer die, the apparatus includes microscope optics supported by a stand, a table for supporting a precision divider head upon which the printer die carrying the motif is mounted, with the table being movable in an "X" and "Y" direction in a plane perpendicular to the axis of the optical path issuing from the optics, the precision divider head for rotating the printer die motif through the optical path of the optics, a first digital micrometer to measure length of a motif, a second digital micrometer to measure the width of a motif, a dial indicator to measure the depth of a motif, and the rotational indicator to measure the circumferential separation of two motifs on the same printer die.
    Type: Grant
    Filed: June 29, 1989
    Date of Patent: June 11, 1991
    Inventors: Roy C. Stroud, Walter A. Baker