Patents by Inventor M. Robert Davis

M. Robert Davis 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: 5964233
    Abstract: A patio umbrella that includes a dining table and a fuel-burning radiant heater avoids overheating of the upper canopy by mounting the support on which the upper canopy rests in the shadow cast by a reflector that converges upwardly to a chimney portion. The reflector is affixed to the housing of the combustion chamber. In addition to reflecting radiant heat downwardly onto the table and the diners, the reflector shields the upper canopy support from radiant heat and provides a duct for venting the products of combustion. As the latter pass up through the chimney portion, cooler air is drawn up through the space between the reflector and the upper canopy support thereby preventing hot air from stagnating there. The upper canopy support is mounted to the reflector and spaced above it by a number of insulative ceramic spacers.
    Type: Grant
    Filed: August 12, 1998
    Date of Patent: October 12, 1999
    Inventors: Walter B Clark, M. Robert Davis