Patents by Inventor Daniel K. Yu

Daniel K. Yu 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: H961
    Abstract: A heat exchanger and heater of a tube type is provided for heating a liquid n a coiled type housing having an inlet and an outlet for liquid of various types. Hot materials in a gas flow are introduced into the system and a liquid is vaporized to heat the heat exchanger system. In a second embodiment of the shell type of heat exchanger and heater is used in the heating of the input liquid. The third embodiment of the heat exchanger and heater system utilizes a frusto-conical shell with a heat coil centrally located in the shell, while a fourth embodiment of the heat exchanger and heater utilizes a cylindrical coil for the liquid to be heated and a temperature sensor for sensing the temperature in the system at end point.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: September 3, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Daniel K. Yu
  • Patent number: H1124
    Abstract: A particle smoke generator having a gas turbine for combusting air and fu and for discharging heated exhaust combustion gases. A venturi tube conveys the heated exhaust gases into a low-pressure region away from the combustion means. A supply of particulate smoke material is joined to a supply tube for conducting the particulate smoke material from the supply to the venturi tube. In the venturi tube the particulate smoke material is deagglomerated by the exhaust gases. The deagglomerated particles and gases are diffused in a diffuser nozzle to generate smoke in the atmosphere.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: January 5, 1993
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: William G. Rouse, Daniel K. Yu, Christian S. Gardner