Patents by Inventor John Van Domelen

John Van Domelen 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).

  • Heating apparatus and method
    Patent number: 5059114
    Abstract: A purging system for a heating apparatus according to the present invention includes a pair of three-way valves interposed serially between a burner head and a supply of combustible fluid. Each valve is connected to a switch for switching between two modes of conduction. One of the valves is controlled by a remote switch so that the burner may be flushed manually by an operator. The other switch senses whether the heating apparatus is operating and flushes the burner automatically when the apparatus is inoperative.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: October 22, 1991
    Assignee: Automated Packaging Systems, Inc.
    Inventors: Chester H. Stout, John Van Domelen