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US 2019/0170394 A1Published application
Water heater with organic polymer coating
AssigneeA. O. Smith Corporation
InventorsMing C. Kuo, Nathaniel Arnell Rose, Brittney Nicole Voss, David Andrew Wallace, Bandar M. Hamada, John L. Porter, IV
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Abstract
A method of constructing a water heater includes the steps of providing a tank having a metal interior tank wall and a heat exchanger positioned within the tank, coating the interior tank wall and the heat exchanger with a first layer comprising glass enamel, and coating a portion of the first layer with a second layer comprising an organic polymer to protect the portion of the first layer from exposure to water in the tank.
Claims22
A method of constructing a water heater comprising the steps of:
- (a) providing a tank having a metal interior tank wall and a heat exchanger positioned within the tank;
- (b) after step (a) coating the interior tank wall and the heat exchanger with a first layer comprising glass enamel;
- (c) after step (b) coating a portion of the first layer with a second layer comprising an organic polymer to protect the portion of the first layer from exposure to water in the tank.
A water heater comprising:
- a tank including a metal interior tank wall;
- a heat exchanger positioned within the tank;
- a first layer positioned on the interior tank wall and the heat exchanger, the first layer including glass enamel;
- and
- a second layer positioned on a portion of the first layer, the second layer including an organic polymer,
- wherein the second layer is configured to protect the portion of the first layer from exposure to water in the tank.
3 more elements
Dependencies are inferred from the claim text.