Patents by Inventor Harold Kearney

Harold Kearney 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).

  • APPARATUS AND METHOD FOR DETERMINING A LIQUID LEVEL IN A STEAM DRUM
    Publication number: 20060070438
    Abstract: An apparatus for determining a density-compensated liquid level in a vessel containing a mixture of liquid and vapors comprises a temperature sensor which produces a signal that is proportional to the temperature of the mixture; and a processing apparatus that includes one or more pressure sensors that allow for a measurement of an operating pressure and a differential pressure between the mixture in the vessel and a constant reference leg. The processing apparatus further includes an integral microprocessor for calculating the respective specific gravities of the liquid and vapor portions of the mixture based on the operating pressure, and then computing the density-compensated liquid level in the vessel based on such calculations of specific gravity and the differential pressure.
    Type: Application
    Filed: June 17, 2005
    Publication date: April 6, 2006
    Inventors: Paul Hatfield, Harold Kearney
  • Apparatus and method for determining a liquid level in a steam drum
    Patent number: 7017407
    Abstract: An apparatus for determining a density-compensated liquid level in a vessel containing a mixture of liquid and vapors comprises a temperature sensor which produces a signal that is proportional to the temperature of the mixture; and a processing apparatus that includes one or more pressure sensors that allow for a measurement of an operating pressure and a differential pressure between the mixture in the vessel and a constant reference leg. The processing apparatus further includes an integral microprocessor for calculating the respective specific gravities of the liquid and vapor portions of the mixture based on the operating pressure, and then computing the density-compensated liquid level in the vessel based on such calculations of specific gravity and the differential pressure.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: March 28, 2006
    Assignee: Vogt Power International, Inc.
    Inventors: Paul Hatfield, Harold Kearney
  • Apparatus and method for determining a liquid level in a steam drum
    Patent number: 6932028
    Abstract: An apparatus for determining a density-compensated liquid level in a vessel containing a mixture of liquid and vapors comprises a temperature sensor which produces a signal that is proportional to the temperature of the mixture; and a processing apparatus that includes one or more pressure sensors that allow for a measurement of an operating pressure and a differential pressure between the mixture in the vessel and a constant reference leg. The processing apparatus further includes an integral microprocessor for calculating the respective specific gravities of the liquid and vapor portions of the mixture based on the operating pressure, and then computing the density-compensated liquid level in the vessel based on such calculations of specific gravity and the differential pressure.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: August 23, 2005
    Assignee: Vogt Power International Inc.
    Inventors: Paul Hatfield, Harold Kearney