Patents by Inventor Robert R. Oldham

Robert R. Oldham 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).

  • Pivotable fluid diverter for recirculation system
    Patent number: 4011162
    Abstract: A reservoir for the final treatment of sewage is provided with a fluid diverter, which is interconnected with and actuated by a float on the surface of the liquid collected in the reservoir. A submersible pump within the liquid recirculates liquid by spraying it through a foraminous header disposed above the liquid level. When the liquid level in the reservoir falls below a predetermined liquid level, the diverter permits the sprayed fluid to be returned to the reservoir. When the liquid level rises above the predetermined liquid level, the diverter diverts at least a portion of the fluid into the outlet pipe and continues to do so until the predetermined liquid level is restored.
    Type: Grant
    Filed: October 29, 1973
    Date of Patent: March 8, 1977
    Assignee: Robert R. Oldham, Inc.
    Inventors: Robert R. Oldham, John H. Wooddell, Arthur L. Cain
  • Pivotable fluid diverter for recirculation system
    Patent number: 3957642
    Abstract: A reservoir for the final treatment of sewage is provided with a fluid diverter, which is interconnected with and actuated by a float on the surface of the liquid collected in the reservoir. A submersible pump within the liquid recirculates liquid by spraying it through a foraminous header disposed above the liquid level. When the liquid level in the reservoir falls below a predetermined liquid level, the diverter permits the sprayed fluid to be returned to the reservoir. When the liquid level rises above the predetermined liquid level, the diverter diverts at least a portion of the fluid into the outlet pipe and continues to do so until the predetermined liquid level is restored.
    Type: Grant
    Filed: October 29, 1973
    Date of Patent: May 18, 1976
    Assignee: Robert R. Oldham, Inc.
    Inventors: Robert R. Oldham, John H. Wooddell