Patents Represented by Attorney Robert J. Mawhinney
  • Patent number: 4594233
    Abstract: An improved process for making synthetic ammonia wherein a make-up synthesis gas is added to recycled unreacted gas from a catalytic conversion loop including the steps of introducing a volatile anti-icing compound into the hot make-up gas to vaporize the compound, cooling the gas and vaporized anti-icing compound to condense part of the anti-icing compound, separating the condensed anti-icing compound and dissolved impurities from the make-up gas, further cooling the make-up gas to a temperature at which the remaining anti-icing compound condenses essentially completely, separating the condensed remaining anti-icing compound from the make-up gas, mixing the resulting make-up gas at the low temperature with liquid ammonia to saturate the make-up gas with ammonia, separating unvaporized liquid ammonia from the saturated make-up gas, mixing the saturated make-up gas with recycle and passing the mixed gases directly to the catalytic ammonia synthesis converter.
    Type: Grant
    Filed: January 4, 1985
    Date of Patent: June 10, 1986
    Inventor: Roger W. Parrish
  • Patent number: 4305250
    Abstract: A compact solid state turbine heat engine can be devised by pairing the Nitinol elements. Each element is characterized by being in thermal contact with at least one hot water and one cold water bath and mechanically coupled to at least one driven pulley and driver pulley. A second Nitinol element is similarly configured with a driver pulley, driven pulley, hot and cold water bath. The driver pulley associated with the first nitinol element is mechanically coupled to the driven pulley of the second Nitinol element. Similarly, the driver pulley of the second Nitinol element is mechanically coupled to the driven pulley of the first Nitinol element. The paired Nitinol elements form a compound solid state turbine engine wherein each Nitinol element lies in a single plane and wherein the engine may be combined with a plurality of such pairs for increased power output.
    Type: Grant
    Filed: October 10, 1980
    Date of Patent: December 15, 1981
    Inventor: John S. Cory