Patents by Inventor John M. Schauer

John M. Schauer 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: 4330510
    Abstract: An apparatus and method for chemically altering and scrubbing the noxious constituents from foundry core manufacturing and arc welding operations is disclosed.An upstanding closed container is provided and a gas washing liquid is disposed within the container to a predetermined level. A horizontal baffle is mounted stationarily within the container at an elevation spaced above the level of the gas washing liquid therein and spaced peripheral portions of the baffle are spaced inwardly of the opposing inner surface of the container. A gas drive pipe extends into the container, downwardly past the baffle, and opens downwardly in a central lower portion of the container, below the baffle and near the bottom of the liquid. The container includes a top cover and an outlet duct is provided which opens outwardly of the container through a central portion of the cover. The gases are pumped into the drive pipe to achieve a critical velocity at the exit of the drive pipe of about 2,300-20,000 linear feet per minute.
    Type: Grant
    Filed: September 7, 1979
    Date of Patent: May 18, 1982
    Inventors: John M. Schauer, Dennis J. Schauer
  • Patent number: 4251485
    Abstract: An apparatus for chemically altering and scrubbing the noxious constituents from foundry core manufacturing and arc welding operations comprising an upstanding closed container with a gas washing liquid disposed within the container to a predetermined level. A horizontal baffle is mounted stationarily within the container at an elevation spaced above the level of the gas washing liquid therein and spaced peripheral portions of the baffle are spaced inwardly of the opposing inner surface of the container. A gas drive pipe extends into the container, downwardly past the baffle, and opens downwardly in a central lower portion of the container, below the baffle and near the bottom of the liquid. The container includes a top cover and an outlet duct is provided which opens outwardly of the container through a central portion of the cover. The gases are pumped into the drive pipe to achieve a critical velocity at the exit of the drive pipe of about 2300-20,000 linear feet per minute.
    Type: Grant
    Filed: March 28, 1978
    Date of Patent: February 17, 1981
    Inventors: John M. Schauer, Dennis J. Schauer