Vapor generator
First Claim
Patent Images
1. An immersion heater for elevating the temperature of a liquid comprising:
- A) a first body of a first material having a cavity formed therein and an exterior surface, B) a second body for contacting the liquid, said second body being in overlying contact with said first body, and C) an electrical heating element having a portion disposed in said activity.
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Accused Products
Abstract
An immersible heater module for elevating the temperature of a liquid in a container. The heating module has a semispherical shape and is formed with an outer body that inhibits the adherence of residues during the boiling process, such as stainless steel or dielectric-coated stainless steel, and an aluminum inner body. Electrical heating coils are affixed to the aluminum body to heat the aluminum body and transfer heat through the outer body into the liquid. The composite of the inner and outer bodies provides efficient heat transfer for boiling liquid.
47 Citations
23 Claims
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1. An immersion heater for elevating the temperature of a liquid comprising:
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A) a first body of a first material having a cavity formed therein and an exterior surface, B) a second body for contacting the liquid, said second body being in overlying contact with said first body, and C) an electrical heating element having a portion disposed in said activity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A steam generator for converting water into steam comprising:
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A) a container for the water, and B) a heating module for immersion in the water, said heating module including;
i) a first, aluminum, semispherical body defining a cavity, ii) a second body comprising stainless steel having a first, semispherical portion overlying said first body and extensions of said first portion forming an annular flange spaced from said aluminum body, iii) a seal that is intermediate container and said flange from water in said container, iv) an electrical heater attached to said first body in said cavity, and v) electrical connectors for connecting said heating module to an electrical source. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An immersible heater module for converting water in a container into steam wherein the container has a bottom opening, said heater module comprising:
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A) a base having electrical connections adapted for attachment to a power source, B) a heating module including;
i) a first body of a material selected for its heat transfer coefficient, said first body having a cavity, ii) a second body of a material in overlying contact with said first body selected for its ability to resist the adhesion of deposits on the material, and iii) an electrical heating element attached to said first body in said cavity and adapted for connection to said electrical connections, C) a sealing structure for producing a water-tight seal between said heating module and the container, portions of said heating element extending exteriorly from said cavity and being connected to said electrical connections in said base whereby water at said second body converts to steam when said heating module is energized by the power source. - View Dependent Claims (21, 22, 23)
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Specification