Patents by Inventor Henricus J. Knol

Henricus J. Knol 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).

  • Fired heater with double casing
    Patent number: 3938475
    Abstract: This disclosure teaches a direct fired heater with a double casing. The double casing includes a somewhat conventional inner casing having a burner penetrating therethrough and an outer casing spaced from the inner casing to form a passage in flow communication between the atmosphere and the burner. The outer casing surrounds the burner and is provided with an acoustic inner surface to minimize escape of noise. Design of refractory linings with respect to thickness and density allows for maintenance of skin temperature of the inner casing above the condensation ranges of SO.sub.2 and SO.sub.3.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: February 17, 1976
    Assignee: The Lummus Company
    Inventors: Thomas F. O'Sullivan, Henricus J. Knol