Patents by Inventor Kevin D. Mahar

Kevin D. Mahar 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: 4274923
    Abstract: Method and apparatus for extruding incandescent coke from a coke oven and for quenching the coke prior to transport thereof from the point where extruded. The method and apparatus include enhanced air pollutant emission control characteristics. The apparatus includes an inverted, truncated-pyramid container cradled within the frame of a vehicle similar to that used to transport molten metal. Prior to coke extrusion the vehicle permits indexing of the container under the plane through which the extruded coke falls so as to receive all of such extruded coke. While indexed and immobile, the container is adapted to mate with a correspondingly indexed hood having emission control means adapted to be operable during both the extrusion and quenching of the coke at the indexed position of the container/hood. Use of the present invention, in comparison to the prior art, further minimizes the escape of uncleaned, air pollutant-emitting fume, both by virtue of combustion suppression and exhaust gas cleaning.
    Type: Grant
    Filed: February 22, 1979
    Date of Patent: June 23, 1981
    Assignees: Republic Steel Corporation, The Hanna Furnace Corporation
    Inventor: Kevin D. Mahar
  • Patent number: 4113569
    Abstract: Retrofit method and apparatus for minimizing the emission of particulate-laden smoke to the ambient atmosphere during the movement of slot-oven-produced, incandescent coke prior to the time it is quenched in an open-topped rail vehicle.A cyclically used, moveable hood is selectively positioned around and over a guide through and from which extruded, incandescent coke drops into an open-top vehicle which concurrently is moving at right angles to the path of the extruding coke. The hood confines potentially air polluting emissions during extrusion. Use is made of the latent heat in the extruded, incandescent coke to make steam out of water introduced within the hood from a plurality of water sprays so as to create a substantial steam atmosphere which envelopes the coke and thereby suppresses combustion when it would otherwise be most extensive. Further, the steam atmosphere is used to screen and protect the apparatus from excessive radiant heat and thereby protect its integrity.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: September 12, 1978
    Assignee: Donner-Hanna Coke Corporation
    Inventor: Kevin D. Mahar