Patents by Inventor Richard N. Fleming

Richard N. Fleming 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).

  • Low lying fog simulator and method
    Patent number: 5676886
    Abstract: A low lying fog simulator including a liquid carbon dioxide source and a cooler to be used with a smoke generating machine. The liquid carbon dioxide is forced through an expansion valve to provide a cold carbon dioxide gas pocket through which the smoke passes prior to being dispersed into the ambient. When dispersed into the ambient the cold smoke/carbon dioxide mixture falls toward a level near the earth's surface simulating a low lying fog.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: October 14, 1997
    Assignee: Sigma Services, Inc.
    Inventor: Richard N. Fleming