Apparatus for sealing a foam insulated water heater

Details Apparatus for sealing a foam insulated water heater Apparatus for sealing a foam insulated water heater

1993-05-27

1994-10-11

Dority, Carroll B.

Liquid heaters and vaporizers

Casings

122 14, 122 17, 126361, F22B 3736

Patent

active

053537505

ABSTRACT:
A water heater comprising a tank defining a water chamber and having an outer surface, a spud mounted on the outer surface, a jacket surrounding the tank and having an inner surface spaced from the tank outer surface, an opening aligned with the spud, a margin around the opening and converging inwardly toward the tank, insulating material between the tank and the jacket, and a fitting threaded into the spud and having a tapered outer surface which engages the margin to form a seal against the insulating material.

REFERENCES:
patent: 4790290 (1988-12-01), Chevalier
patent: 5117810 (1992-06-01), Threatt

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