Industrial Design Engineering Associates, Ltd.

John V Drube

Eugine W Goad

Joseph J Hennessy

The warming device of the present invention includes a food tray or pan formed from metal so as to promote the conduction of heat to the food contained in the pan. The pan is held within a sump vessel adapted to contain a heat transfer fluid such as water. The sump vessel is a unitary bowl-shaped container having side and bottom walls and an upper open wide mouth for receiving the food pan whereby the food pan, when inserted, is located within the sump vessel so that the bottom portion of the food pan is spaced from the wall of the sump vessel to define a chamber suited for containing water and steam between the sump vessel and the food pan. The sump vessel has heat-insulating qualities that reduce heat loss and promote the transmission of heat to the food pan. A heat dissipator plate formed from a metal or other conductor of heat is connected to a wall of the sump vessel with an air space between the heat dissipator plate and the sump vessel. An electrical heating element is located in this space and is connected in heat conductive relationship to the heat dissipation plate which efficiently transfers heat to the food pan. The air space and the wall of the sump vessel on the other side of the air space from the heat dissipator plate reduce the loss of heat from the heating element to the environment.

Food warming vessel for cafeterias and restaurants

A combination food warming vessel and lifting frame is described in which a food warming vessel of conventional construction includes side and bottom walls and an upper open wide mouth with a rim extending therearound can be lifted by a separate ring-shaped lifting frame element which encircles the food warming vessel. The lifting frame includes a central opening adapted to receive the food warming vessel so that the rim of the vessel rests on the upper surface of the lifting frame. The frame includes portions that extend laterally beyond the edge of the rim which are adapted to be grasped manually for lifing the vessel. Hinged to the frame on one side thereof is a cover support arm which has a clasp at its free end for connecting the arm to a cover for the vessel. This allows the cover to be raised by pivoting the arm from the hinged connection with the lifting frame. The lifting frame, arm and cover can all be separated from the vessel when the vessel is to be refilled or cleaned.

Food warmer and lifting frame

A lid support is described for a food warming vessel which includes lid support arm comprising a channel with a pair of parallel vertical flanges connected by a center panel and a lid connector supported at the free end of the arm and extending downwardly between the flanges. The connector comprises a retaining member formed from sheet material with at least one recess for the handle of a cover with structure for securing the handle in the recess of the connector.

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Minneapolis, MN, United States of America

John V Drube