Thermally insulated ceramic container and method for manufacture

Details Thermally insulated ceramic container and method for manufacture Thermally insulated ceramic container and method for manufacture

1982-03-02

1984-05-15

Dixon, Jr., William R.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

215 12A, 215 13R, 220444, 156 79, 156 89, 156292, 264 466, 264 469, A47J 4100, H05B 368, C04B 3334, B32B 518

Patent

active

044488254

ABSTRACT:
A generally cylindrical thermally insulated ceramic container of imposing appearance suitable for use on dining tables comprises a double-wall ceramic container and insulation formed of a foaming resin of low thermal conductivity and contained in the inner cavity interposed between the two walls. The thermally insulated ceramic container is produced by preparing an inner green container wall and an outer green container wall one size larger, both of potter's dough, joining the two green container walls along the upper edges thereof with the walls radially opposed to each other across an intervening space (inner cavity), firing the resultant molded green double-wall container thereby producing a double-wall ceramic container, injecting an unfoamed or semi-foamed foaming resin into the inner cavity through a perforation bored in advance in the outer wall, and foaming the resin within the inner cavity.

REFERENCES:
patent: 3221915 (1965-12-01), Gort et al.
patent: 3935044 (1976-01-01), Daly
patent: 4075264 (1978-02-01), Hay
patent: 4184601 (1980-01-01), Stewart et al.

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