초록 ▼

A tray cabinet wherein each comprises a heating chamber formed between a shell and a detachable cover. A heating element is placed between the base of the shell and a shield. The shell has an edge embedded in the thickness of an upper plate of the tray. A dense foam fills the interior space of the t

A tray cabinet wherein each comprises a heating chamber formed between a shell and a detachable cover. A heating element is placed between the base of the shell and a shield. The shell has an edge embedded in the thickness of an upper plate of the tray. A dense foam fills the interior space of the tray enclosed between the upper plate and a lower plate. The tray and the cover are single rigid and heavy components, not susceptible to deformation due to thermal expansion.

대표청구항 ▼

A tray cabinet comprising: a refrigerating device to pump refrigerated air into shelving capable of receiving removable trays; at least one removable tray; means for individually heating at least one thermally-insulated space formed in said trays; each said tray comprising an upper plate of molded p

A tray cabinet comprising: a refrigerating device to pump refrigerated air into shelving capable of receiving removable trays; at least one removable tray; means for individually heating at least one thermally-insulated space formed in said trays; each said tray comprising an upper plate of molded plastic material forming cavities in which food or other articles may be placed, and a lower plate of molded plastic material and welded to said upper plate all around the base of said tray; said lower plate of said tray having at least one hole therein through which a foam generating mixture is injected so that foam expands in place, adheres strongly to the internal faces of said plates, and solidifies, completely filling the enclosed space formed between said two plates; each tray comprising a heating space formed between a stainless metal shell of which the periphery is embedded in the thickness of said upper plate, said upper plate being injection-molded, and a detachable insulating cover engageable in said metal shell; and said base of said metal shell of each tray being covered externally, in order, by a flat heating element covered in insulation, by a stainless metal plate fixed to the bottom of said metal shell, by a layer of ceramic fiber, and finally by a shield which is fixed all around said metal shell, said element being held pressed against the base of said metal shell by said metal plate.