Method and apparatus for manufacturing a foam insulated water he

Details Method and apparatus for manufacturing a foam insulated water he Method and apparatus for manufacturing a foam insulated water he

1982-06-16

1984-10-16

Anderson, Philip

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

122 13R, 122114, 122119, 126375, 126376, 126361, 249 65, 249152, 249179, 264 465, 264 469, 264315, 264DIG44, 425123, 425185, 425186, 425817R, 425DIG19, 425DIG112, B29D 2704, B28B 732

Patent

active

044773994

ABSTRACT:
A method for insulating a water heater with foamed insulation comprises inflating a tube in the cavity between the shell and the tank to define a boundary for the cavity into which the insulating material is injected. The device is deflated after the foamed insulation has set in the cavity. Apparatus for carrying out such method is provided.

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