Patents by Inventor John S. Mesheau

John S. Mesheau 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: 5160443
    Abstract: An apparatus and method is disclosed for recycling contaminated industrial liquids. In the preferred embodiment, a conventional, medium-sized "van" type of truck houses, transports and powers a dual-loop assembly. A filter-loop assembly receives and stores recycling liquid in a waste liquid holding tank. The liquid is pumped through a pasteurizing heater and a separating centrifuge and back to the tank. Filter-test valves in the filter-loop enable testing to determine desired heating and separation.When flow-rate adjustments produce satisfactory heating and separation, the recycling liquid is directed through a cooler, out of the filter-loop and into an additive-loop assembly where the liquid is pumped from a clean liquid holding tank, by additive compound injections, and back to the clean tank. Additive-test valves in the additive-loop enable testing to determine required quantities of specific additive compounds.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: November 3, 1992
    Assignee: Butler Associates
    Inventor: John S. Mesheau
  • Patent number: 5026488
    Abstract: An apparatus and method is disclosed for recycling contaminated industrial liquids. In the preferred embodiment, a conventional, medium-sized "van" type of truck houses, transports and powers a dual-loop assembly. A filter-loop assembly receives and stores recycling liquid in a waste liquid holding tank. The liquid is pumped through a pasteurizing heater and a separating centrifuge and back to the tank. Filter-test valves in the filter-loop enable testing to determine desired heating and separation.When flow-rate adjustments produce satisfactory heating and separation, the recycling liquid is directed through a cooler, out of the filter-loop and into an additive-loop assembly where the liquid is pumped from a clean liquid holding tank, by additive compound injections, and back to the clean tank. Additive-test valves in the additive-loop enable testing to determine required quantities of specific additive compounds.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: June 25, 1991
    Assignee: Butler Associates
    Inventor: John S. Mesheau