Vending systems for hot foods

Details Vending systems for hot foods Vending systems for hot foods

1989-04-11

1991-04-30

Skaggs, H. Grant

Article dispensing

With article treatment

With cooling or heating

219 1055R, 219 1055E, 219 1055D, G07F 1172

Patent

active

050110420

ABSTRACT:
A vending system for hot food comprises stacks of food-containing trays of a standard size, a microwave oven whose horizontal dimensions are similar to those of the trays and whose vertical dimension is preferably such as to produce a resonant cavity for the wavelength used, and means for feeding a selected one of the trays into the microwave oven on demand. The radiation is preferably introduced through a waveguide into the top of the tray. Each tray preferably carries heating instructions in machine readable code, e.g. as apertures on lateral extensions of a horizontal flange, and a reading head reads the instructions and adjusts the microwave oven accordingly. The stacks of trays may be held in a rotary magazine and selected by push-buttons.

REFERENCES:
patent: 3442200 (1969-05-01), Babel
patent: 4308444 (1981-12-01), Takagi et al.
patent: 4323773 (1982-04-01), Carpenter
patent: 4398651 (1983-08-01), Kumpfer
patent: 4592485 (1986-06-01), Anderson et al.
patent: 4641005 (1987-02-01), Seiferth
patent: 4671425 (1987-06-01), Knoll
patent: 4704510 (1987-11-01), Matsui
patent: 4851631 (1989-07-01), Wendt

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