Foam insulated water heater and method of making same

Details Foam insulated water heater and method of making same Foam insulated water heater and method of making same

1988-10-27

1989-08-29

Godici, Nicholas P.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

264 465, 264 467, 264 469, F24H 118

Patent

active

048619680

ABSTRACT:
A water heater comprising a water tank having a component intended to be kept substantially free from contact with an expandable foam insulating material, and a method of making same, is provided. The water heater has a jacket surrounding the tank and providing an insulating space therebetween. Positioned within this space is a pair of flexible sheets forming an apron. The sheets are joined to form a seal protecting the components from contact with the foam. The apron is positioned over a part of the tank surface so that the seal surrounds the component. The sheets of the apron are substantially unsealed along the top and a side. Foam is introduced between the sheets of the apron and flows out of the unsealed side of the apron to fill the space between the tank and the jacket.

REFERENCES:
patent: 4372028 (1983-02-01), Clark et al.
patent: 4447377 (1984-05-01), Denton
patent: 4477399 (1984-09-01), Tilton
patent: 4628184 (1986-12-01), West
patent: 4632792 (1986-12-01), Clark
patent: 4687118 (1987-08-01), Clark

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