Patents by Inventor James D. Snodgrass

James D. Snodgrass 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: 4013557
    Abstract: A sewage treatment apparatus comprises a casing with an inlet for reception of sewage and a discharge outlet. There are means within the casing for electrolytically treating the sewage therein and there are means for agitating sewage within the casing. There is a valve at the discharge outlet and means for operating the valve to control the passage of sewage after it has been treated by agitation and electrolysis.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: March 22, 1977
    Assignee: Sloan Valve Company
    Inventors: James D. Snodgrass, Joseph J. Pilolla
  • Patent number: 3975256
    Abstract: There is provided an improved apparatus and method for relatively low volume batch treatment and disposition of sewage or toilet wastes especially from passenger vehicles such as railway cabooses, motor houses, or other passenger-carrying vehicles. The apparatus is characterized by the ability to operate without moving parts for sterilizing, disintegrating, and discharging an aqueous sewage composition including human feces and includes an enclosed chamber having an inlet for the sewage composition at the top of the chamber, separate electrodes in the lower portion of the chamber, a standpipe having an inlet from the chamber and communicating with the upper portion of the chamber and discharging exteriorly of the chamber, and means for impressing a potential difference across the electrodes.
    Type: Grant
    Filed: February 22, 1973
    Date of Patent: August 17, 1976
    Assignee: Heds, Inc.
    Inventors: Theodore C. Johnson, James D. Snodgrass