Air-gas mixing systems and methods for endothermic gas...

Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Control element responds proportionally to a variable signal...

Reexamination Certificate

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C422S112000, C422S113000, C148S208000

Reexamination Certificate

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10435932

ABSTRACT:
Systems and methods create an air-gas mixture supply for an endothermic generator. The systems and methods convey a hydrocarbon gas under pressure through a valve, to thereby form an air-gas mixture supply for the endothermic generator. The systems and methods sense an actual air-gas ratio of the air-gas mixture supply. The systems and methods receive from an operator a set point air-gas ratio. The systems and methods compare the actual value to the set point value and generate a deviation. The systems and methods generating a control signal to operate the valve based upon the deviation, and, preferably, to minimize the deviation.

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Waukee Engineering Co., Inc., How to Select and Install Flo-Meters for Gas Burner Systems, Milwaukee, Wisconsin. Date: Oct., 1997. p. 6, Fig. 6.
ASM Handbook, vol. 4 Heat Treating, Date: 1994. pp. 550-552, Fig. 7.
Berry, Theodore P., An Overview of Endothermic Generators, SSI Supersystems, Inc., Cincinnati, Ohio. Undated. pp. 1, 8, 9 and Figs. 1 and 2.
Waukee Engineering Company, Waukee Type “R” Mixor Bulletin, Milwaukee, Wisconsin. Date: 1957. p. 1.

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