초록 ▼

A portable tray warming unit comprising a casing having at least one tray supporting rack, trays to be supported and received upon said rack, and electrical terminal means for interconnecting the tray warming unit with an external electrical source of energy. The casing of this tray warming unit has

A portable tray warming unit comprising a casing having at least one tray supporting rack, trays to be supported and received upon said rack, and electrical terminal means for interconnecting the tray warming unit with an external electrical source of energy. The casing of this tray warming unit has dimensions and weight small enough so that the unit may be easily carried about or lifted. The upper and lower surfaces of the casing lie in planes parallel to each other so that one unit may be stacked on top of another. To further facilitate such stacking the bottom surface of a unit has protrusions extending downwardly from the bottom and these protrusions correspond to indentations in the top surface of the casing. This correspondence allows the protrusions of one unit to fit into the indentations of the unit on which it is stacked thereby assuring a non-slidable connection between the two units.

대표청구항 ▼

A portable tray warming unit comprising a casing having at least one tray supporting rack, said casing being of dimensions such that it is convenient for lifting and carrying by a single user, said casing having an opening for providing access to said rack, terminal means connected to said casing fo

A portable tray warming unit comprising a casing having at least one tray supporting rack, said casing being of dimensions such that it is convenient for lifting and carrying by a single user, said casing having an opening for providing access to said rack, terminal means connected to said casing for receiving energy from an energy source external to said unit, at least one tray constructed and arranged to be removably supported on the rack and having a supporting surface which receives food receptacles, said tray having at least one localized heat transfer device in said surface, said surface of said tray having a substantial portion free of said heat transfer devices, electrical connecting means for supplying energy from said terminal in the casing to the heat transfer device in the surface of said tray to energize said device when the tray is in place on said rack in the casing, at least one food receptacle, for removable placement on said surface of said tray, constructed and arranged to be in a heat exchanging relationship with said localized heat transfer device in said tray so as to transmit heat between the device and food contained in said food receptacle, an upper surface of said casing being capable of supporting the lower surface of an identical tray warming unit and each upper and lower surface carrying complementary means for registration and interlocking with other like tray warming units, said terminal means including means for electrically connecting said unit to a low voltage outside source.