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US 11,466,898 B1Granted
Boiler apparatus and method thereof
OwnerJohn Blichmanninventor
Life of this patent
Estimating the term…
Abstract
An improved boiler apparatus having multiple resistive heating elements are provided with fixed resistances that can be rewired to allow dual voltage capability and at the same time, reduced watt density. For 120 V operation, the large diameter 9 ohm coil is used alone to provide the lowest possible watt density. For 240 V operation, all three heating coils are wired in series, creating a low watt density but high wattage heater.
Claims14
An improved boiler apparatus comprising:
- a kettle portion having an interior, an exterior surface, a bottom end and a top end;
- and
- a heating element portion having a heating element assembly comprising a first coil having a first diameter, a first resistance, a second heating element having a second diameter, a second resistance, and a second electrical connection end, wherein the second diameter is greater than the first diameter,
- wherein both the first heating element and second heating element are coupled to a sub plate, wherein there is a pre-determined amount of space between the first heating element and the second heating element and the first electrical connection end and second connection end are alternated 180 degrees from each other,
- wherein the spacing of the first heating element and second heating element and alternated connection ends of the heating elements are configured to provide evenly distributed heat over the surface of the sub plate,
- a control panel, a switch configured to adjust the voltage supplied to the heating element assembly from a first voltage to a second voltage, wherein the heating element assembly is coupled to the bottom end of the kettle portion.
3 more elements
Dependencies are inferred from the claim text.