Patents by Inventor Clair F. Kirk

Clair F. Kirk 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).

  • Patent number: 6250769
    Abstract: Headgear such as a cap for use in dark and very confined spaces having a light attached to its visor in a manner that the light beam is parallel to the central axis of the visor and to the plane of vision of the wearer.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: June 26, 2001
    Inventor: Clair F. Kirk
  • Patent number: 4702893
    Abstract: An apparatus is provided for the elimination of the gaseous pollutants sulfur dioxide and nitric oxide from the emissions of furnaces and smelters, and for the production of two commercial products, liquid sulfur and nitric acid. Two precipitators are operated in series, each containing an annular reaction chamber and a cylindrical separation chamber surrounded by the reaction chamber. The first precipitator combines the furnace or smelter emissions with methane in its reaction chamber in order to reduce the sulfur dioxide in the emissions to sulfur. The emissions are then passed through a tangential duct to the first precipitator's separation chamber where the fine sulfur praticles are converted to liquid sulfur by sending the mixed gases through an involuted spiral baffle and allowing the sulfur particles to coalesce on a trip wire grid. The sulfur particles then melt and fall by gravity to the bottom of the separation chamber, from which point the liquid sulfur is withdrawn.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: October 27, 1987
    Inventors: Samuel A. Kirk, Clair F. Kirk, John W. Kirk, Douglas J. Kirk
  • Patent number: 4176779
    Abstract: The present device separates salts from water by utilizing hydraulic force, the force of inertia, centrifugal force and the catalytic similarities produced by hydrogen in a process named, Desalination By The Inverse Function Of The Known "Salting-Out" Effect, which establishes differential density within the high gravity chamber of the centrifugal rotor.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: December 4, 1979
    Inventors: Clair F. Kirk, Samuel A. Kirk
  • Patent number: 4170328
    Abstract: Hydrogen gas is injected into sea water preceding treatment in an improved pocket type centrifuge. The catalytic effects of hydrogen gas within the confining walls plus hydraulic, inertia, and centrifugal forces acting within the improved pocket type centrifuge give an inverse function of the known salting-out effect in which the hydrogen rejects the salt and floats the fresh-water from the system. The hydrogen gas is separated from the fresh-water by a second improved pocket type centrifuge and recycled for efficiency in the process.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: October 9, 1979
    Inventors: Samuel A. Kirk, Clair F. Kirk