Electric heating – Heating devices – Combined with container – enclosure – or support for material...
Patent
1989-02-28
1990-04-24
Walberg, Teresa J.
Electric heating
Heating devices
Combined with container, enclosure, or support for material...
219275, A47J 2705
Patent
active
049202510
ABSTRACT:
Two square self-enclosing interchangeable food baskets can be used singly, or stacked shelf-style, or stacked with the upper basket inverted to form a single tall domed compartment. To generally confine the steam, a separate cover fits closely with the upper basket in either orientation, or with the single basket if only one is in use; the lower basket fits closely with a water tray, and the two baskets fit closely with each other. Each basket is a unitary plastic component, eliminating the severe cleaning problems, hot-surface and possible health hazards, and high cost of aluminum trays used in earlier self-enclosing baskets. The water tray too is plastic, eliminating the similar cleaning problems, hazards, and high cost of cast-aluminum water trays in an earlier extendable self-enclosing system. A die-cast heater is mounted in a central orifice of the water tray, and surrounded by a central well formed in the tray. A separate base houses an indicator light, and electrical connections for the heater and light. The water tray has a peripheral lip that fits over the outside edge of the base to deter water from reaching the electrical connections and components.
REFERENCES:
patent: 164063 (1875-06-01), Welch
patent: 1344326 (1920-06-01), Williams
patent: 3470719 (1969-10-01), Frank
patent: 4509412 (1985-04-01), Whittenburg
patent: 4650968 (1987-03-01), Williams
Colton Buddy A.
Sanchez George
Stone Earlyn W.
Whitenack Joan E.
Acry Industries, Incorporated
Lippman Peter I.
Walberg Teresa J.
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