Patents Represented by Attorney Edward L. Schwartz

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  • Gas burner controller with main valve delay after pilot flame lightoff
    Patent number: 5538416
    Abstract: A controller for a gas burner system compensates for the tendency of a flame rod sensor in the burner system to on occasion provide a spike in its signal on first lightoff of a pilot flame, by delaying the signal which causes opening of the burner system's main burner valve until the sensor signal has had a chance to reach to its normal level indicative of the presence of the pilot flame. This time varies from about 5 to 30 seconds.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: July 23, 1996
    Assignee: Honeywell Inc.
    Inventors: Scott M. Peterson, Edward L. Schwarz