Patents by Inventor Donald G. Sims

Donald G. Sims 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: 5704387
    Abstract: A propane reserve system for providing propane fuel to propane driven equipment. The propane reserve system includes a standard tank and reserve tank interconnected by a supply network such that the standard tank simultaneously supplies fuel to the propane driven equipment and the reserve tank, if needed. The supply network generally includes a standard tank effluent conduit, a reserve tank inflow conduit, a reserve tank effluent conduit and an output conduit meeting at a junction and a plurality of vanes restricting fuel flow through the network. A flow restrictor coupled to the reserve tank inflow conduit cooperates with one of the valves to limit flow into the reserve tank thereby allowing the effluent from the primary tank to fill the reserve tank while also powering the equipment.
    Type: Grant
    Filed: October 16, 1995
    Date of Patent: January 6, 1998
    Inventor: Donald G. Sims
  • Patent number: 5328105
    Abstract: A transportable processing unit for producing a pumpable, essentially homogeneous admixed material suitable for use as substitute fuel or for thermal destruction by incineration, the processing unit including a closed mixing vessel mounted on a movable base member the vessel adapted to receive feedstock material from an adjacent on site holding facility through at least one entry port and to receive intermediate process material through at least one inlet port and a process material exit port as well as a mixing device located in the vessel interior.
    Type: Grant
    Filed: February 20, 1992
    Date of Patent: July 12, 1994
    Assignee: Nortru, Inc.
    Inventors: Donald G. Sims, Norman Foster