Patents by Inventor David R. Salzmann

David R. Salzmann 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).

  • Moisture resistant ceramic igniter for a burner
    Patent number: 5543180
    Abstract: An igniter for a propane burner is made substantially impermeable to moisture by coating the porous ceramic igniter shell with at least one layer of an inorganic, nonmetallic coating, the coating being an alkali silicate formed from dehydrating liquid water-glass on the surface of the ceramic igniter shell.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: August 6, 1996
    Assignee: Ingersoll-Rand Company
    Inventors: David R. Salzmann, James C. Purington
  • Moisture resistant ceramic igniter for a burner
    Patent number: 5378956
    Abstract: An igniter for a propane burner is made substantially impermeable to moisture by coating the porous ceramic igniter shell with at least one layer of an inorganic, nonmetallic coating, the coating being an alkali silicate formed from dehydrating liquid water-glass on the surface of the ceramic igniter shell.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: January 3, 1995
    Assignee: Ingersoll-Rand Company
    Inventors: David R. Salzmann, James C. Purington