Water heater with upwardly sliding outer jacket

Details Water heater with upwardly sliding outer jacket Water heater with upwardly sliding outer jacket

1989-01-05

1990-03-13

Jones, Larry

Stoves and furnaces

Liquid heater

Open-top vessel that may include lid

126350R, 220444, 220445, 220447, 220 67, 220 68, 220431, A47J 2700, F24H 100

Patent

active

049075705

ABSTRACT:
A water heater (40) includes a lower skirt ring (42) supporting and spacing an inner storage tank (2) above a support surface (10a), and an outer jacket (44, 56, 70) slid upwardly along the inner storage tank and having a lower end (48, 60) extending radially inwardly to mate with the inner storage tank and form a dam sealing the annular cavity space (22) between the tank and jacket, which dam prevented leakage therepast during foamed insulation. Various outer jacket (44, 56, 70, 82, 100) combinations are disclosed with convex (9a) Tank Bottoms. In other embodiments, the lower radially inwardly extending end (74, 86, 98) of the outer jacket engages the underside of a flange (76, 96) formed on the skirt ring (42, 90), to form the dam as the outer jacket is slid upwardly along the inner tank.

REFERENCES:
patent: 1173335 (1916-12-01), Angelo et al.
patent: 2099113 (1937-11-01), Hollnagel
patent: 2103678 (1937-12-01), Kline et al.
patent: 3253731 (1966-05-01), Fink et al.
patent: 3516566 (1970-06-01), Franck
patent: 3768687 (1973-10-01), Spencer
patent: 4372028 (1983-02-01), Clark et al.
patent: 4447377 (1984-05-01), Denton
patent: 4477399 (1984-10-01), Tilton
patent: 4527543 (1985-07-01), Denton
patent: 4628184 (1986-12-01), West
patent: 4632792 (1986-12-01), Clark
patent: 4651894 (1987-03-01), Ebert
patent: 4736509 (1988-04-01), Nelson
patent: 4744488 (1988-03-01), Nelson
patent: 4749532 (1988-06-01), Pfeffer
patent: 4790290 (1988-12-01), Chevalier et al.

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