Patents by Inventor John Olear

John Olear 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).

  • Corner sweep mechanism for square settling tank
    Patent number: 4323456
    Abstract: A corner sweep mechanism for a square shaped settling tank and which mechanism is pivotally connected to the end of a main rotary rake structure and comprises a lightweight buoyant frame structure which includes a rake or sweep arm adapted to be extended into the corner areas of the tank bottom under the control of a tension spring without the use of counterweights during rotation of the main rake structure.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: April 6, 1982
    Assignee: Dorr-Oliver Incorporated
    Inventor: John Olear