Patents by Inventor Herbert E. Smith

Herbert E. Smith 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: 5341767
    Abstract: A water heater comprising a tank defining a water chamber, a combustion chamber for heating water in the water chamber, and a combustion air inlet pipe including an outlet end communicating with the combustion chamber. The inlet pipe also includes an inlet end having a longitudinal axis, and a plate in the combustion air inlet pipe adjacent the inlet end, which plate extends outwardly of the inlet end along the longitudinal axis.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: August 30, 1994
    Assignee: AOS Holding Company
    Inventor: Herbert E. Smith