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

1991-11-04

1992-06-02

Yeung, James C.

Stoves and furnaces

Liquid heater

Boiler receiving hot liquid or steam from stove or furnace

126373, 220444, 220448, 122494, F24H 100, B29C 6500

Patent

active

051178109

ABSTRACT:
A water heater comprising a tank which is adapted to contain water and which has an outer surface, a spud mounted on the outer surface of the tank, a jacket surrounding the tank, having an inner surface spaced from the outer surface of the tank, and having therein an opening aligned with the spud, a member connected to the spud, insulating material between the tank and the jacket, and an annular seal for sealing the opening from the insulating material, the seal surrounding the member, having a radially inner portion captured between the member and the spud, and having a radially outer portion engaging the inner surface of the jacket.

REFERENCES:
patent: 3253731 (1966-05-01), Fink et al.
patent: 4477399 (1984-10-01), Tilton
patent: 4527543 (1985-07-01), Denton
patent: 4744488 (1988-05-01), Nelson
patent: 4790290 (1988-12-01), Chevalier et al.
patent: 4901676 (1990-02-01), Nelson

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