Patents by Inventor Carl J. Gaudin

Carl J. Gaudin 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).

  • Self sealing domed sewer cover assembly
    Patent number: 5062735
    Abstract: A self sealing sewer cover assembly including a dome shaped removable cover for preventing flammable and/or toxic gases from being discharged from a sewer, and for preventing the ignition of gases in a sewer by flames and sparks in the area adjacent to the sewer inlet. The cover assembly may be inserted into the inlet to a sewer. the apparatus of the present invention provides a water barrier between gases contained in the sewer and the ambient air adjacent to the sewer inlet which prevents the flow of gases from the sewer to the ambient air surrounding the sewer inlet.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: November 5, 1991
    Inventor: Carl J. Gaudin
  • Sewer catch basin with gas seal for a petroleum refinery or chemical processing plant
    Patent number: 5028320
    Abstract: A sewer catch basin assembly for preventing gases from being discharged from a sewer of a petroleum refinery or chemical processing plant and for preventing the ignition of gases in a sewer by flames and sparks in the area adjacent to the sewer inlet. The catch basin assembly may be connected to a vertical pipe or "Tee" inserted in an existing or new horizontal sewer pipe, and can be used to replace an existing sewer inlet or catch basin. The catch basin assembly provides a water barrier between gases contained in the sewer and the ambient air adjacent to the sewer inlet which prevents the flow of gases from the sewer to the ambient air surrounding the sewer inlet.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: July 2, 1991
    Inventors: Carl J. Gaudin, Larry G. Lacouture
  • Self sealing sewer cover assembly
    Patent number: 4776722
    Abstract: A self sealing sewer cover assembly for preventing flammable gases from being discharged from a sewer and for preventing the ignition of gases in a sewer by flames and sparks in the adjacent to the sewer inlet. The apparatus of the present invention comprises a cover assembly which may replace or be used in combination with an existing cover or grating on a sewer inlet and may be inserted into the inlet to a sewer. The apparatus of the present invention provides a water barrier between gases contained in the sewer and the ambient air adjacent to the sewer inlet which prevents the flow of gases from the sewer to the ambient air surrounding the sewer inlet.
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: October 11, 1988
    Inventor: Carl J. Gaudin
  • Self sealing sewer cover assembly
    Patent number: 4682907
    Abstract: A self sealing sewer cover assembly for preventing flammable gases from being discharged from a sewer and for preventing the ignition of gases in a sewer by flames and sparks in the area adjacent to the sewer inlet. The apparatus of the present invention comprises a cover assembly which may replace or be used in combination with an existing cover or grating on a sewer inlet and may be inserted into the inlet to a sewer. The apparatus of the present invention provides a water barrier between gases contained in the sewer and the ambient air adjacent to the sewer inlet which prevents the flow of gases from the sewer to the ambient air surrounding the sewer inlet.
    Type: Grant
    Filed: April 1, 1986
    Date of Patent: July 28, 1987
    Inventor: Carl J. Gaudin