Foam insulated tank

Details Foam insulated tank Foam insulated tank

1988-12-09

1992-06-23

Pollard, Steven M.

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

220465, 220466, B65D 2500

Patent

active

RE0339687

ABSTRACT:
A method of manufacturing a foam insulated water heater of the type having an inner tank, a layer of insulating foam material surrounding the inner tank and an outer protective shell includes, in one embodiment, the steps of (1) forming a flexible, expandable bag in a configuration which may be placed between the tank and shell, (2) attaching the flexible bag between the tank and shell, (3) filling the bag with a foam material which expands, and (4) continuing to fill the bag so that foam material expands through relief openings in the bag to fill the remainder of the space between the tank and the shell.

REFERENCES:
patent: 2043183 (1936-06-01), Mauser
patent: 3222843 (1965-12-01), Schneider
patent: 3310615 (1967-03-01), Bender
patent: 3313020 (1967-04-01), Krauskopf
patent: 3357142 (1967-12-01), Furrer et al.
patent: 3687087 (1972-08-01), Yurkoski et al.
patent: 3698589 (1972-10-01), Perry
patent: 3910461 (1975-10-01), Eager
patent: 4372028 (1983-02-01), Clark et al.
patent: 4447377 (1984-05-01), Denton
patent: 4477399 (1984-10-01), Tilton
patent: 4632792 (1986-12-01), Clark
patent: 4638184 (1986-12-01), West
patent: 4687118 (1987-08-01), Clark
231 U.S.P.Q., pp. 242-252.

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