Patents by Inventor Ray C. Haws

Ray C. Haws 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).

  • Combined apparatus for removing grit and grease from sewage
    Patent number: 5021153
    Abstract: A combined apparatus for removing grit and grease from sewage includes a tank and a sewage inlet conduit extending into the tank. A mixing eductor receives incoming sewage and aeration is provided within the mixing eductor for upward flow. A down draft baffle outside the mixing eductor recives the aerated fluid and transports it downwardly to enable grit to settle out of the influent. The tank has a volume sufficient for settling substantially all grit from the influent sewage and separating substantially all grease.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: June 4, 1991
    Assignee: G-H Systems, Inc.
    Inventor: Ray C. Haws