Patents by Inventor Marshall Spring

Marshall Spring 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).

  • Publication number: 20190332093
    Abstract: A machine is configured to grind and/or shred a waste material and to mix the waste material with a filler material so as to dilute the waste material to a desired level, such as on a minority basis by weight. The machine also includes a blender that grinds or shreds the waste material and the filler material received from drum while mixing the materials together. Materials may be supplied to the blender by a drum located above the blender and/or a hopper located remote from the blender and coupled to the blender by a conveyor. The waste material may be rendered unusable and unrecognizable in the resultant mixture. A computer system can store the various measurements in an internal memory and/or transmit the various measurement to a remote server. Information that supports a finding of compliance with a given regulation can be transmitted to relevant parties.
    Type: Application
    Filed: April 24, 2019
    Publication date: October 31, 2019
    Inventors: Paul Isham, Benjamin Meyer, Marshall Spring, Corbett Hefner, William Finch