Patents by Inventor Edward T. Loughridge

Edward T. Loughridge 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).

  • Diffuser for aeration systems
    Patent number: 3953554
    Abstract: There is provided a simple gas diffusing apparatus composed of a top member having gas permeable perforations, a bottom member including a plurality of larger openings for removal of solid and semi-solid accretions, a gas inlet nipple for introduction of a gas, e.g. air, into the cavity formed by the assembly of the top and bottom members, a valve, a valve seat disposed on the inner surface of the bottom member, and stop means for the valve for confining the valve between a seated position and an unseated position.
    Type: Grant
    Filed: July 11, 1973
    Date of Patent: April 27, 1976
    Assignee: Ashland Vault Incorporated
    Inventor: Edward T. Loughridge