Patents by Inventor Eduardo A. B. Maldonado

Eduardo A. B. Maldonado 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).

  • Self-contained passive solar heating system
    Patent number: 4382437
    Abstract: A self-contained passive solar heating system includes first and second heat pipes, each having a refrigerant medium therein, a condenser portion and an evaporator portion, with the condenser portion of the first heat pipe being coupled to the evaporator portion of the second heat pipe for transferring heat thereto when the pressure within the first heat pipe is greater than the pressure within the second heat pipe. The evaporator portion of the first heat pipe is adapted to be exposed to a source of heat and the condenser portion of the second heat pipe contacts a medium to be heated. A temperature control mechanism may be installed as the coupling between the first and second heat pipes for uncoupling the same when the temperature within the first heat pipe falls below a predetermined temperature.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: May 10, 1983
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: James E. Woods, Jr., Eduardo A. B. Maldonado