Refrigeration – Time or program actuator
Patent
1999-03-19
2000-07-11
Bennett, Henry
Refrigeration
Time or program actuator
62374, 221150R, F25B 1900
Patent
active
060855347
ABSTRACT:
A vending machine structured to store a plurality of items to be vended at room temperature and to selectively dispense individual chilled items as selected by a purchaser, without the use of electric power. The machine comprises a main housing having a retrieval tray integrally formed within the outer surface, and an insulated internal surface, a tank filled with a pressurized gas capable of being emitted as a gas or a refrigerant liquid, a generally downwardly sloping storage tray, a downwardly sloping track having a first upper end coupled to a sidewall of the storage tray and a second lower end coupled to a cooling chamber, and a control valve structured to control the sequence of operation of the machine. Pneumatic pistons are coupled to the control valve and mounted to the storage tray, the top of the cooling chamber and the sidewall of the cooling chamber so that upon activation of the control valve, a select item to be vended is transported to the cooling chamber and enclosed therein, cooling liquid is applied to the select item for a predetermined length of time, and then the select item is transported from the cooling chamber to the retrieval tray.
REFERENCES:
patent: 4920764 (1990-05-01), Martin
patent: 5331817 (1994-07-01), Anthony
patent: 5671604 (1997-09-01), Rudick
Bennett Henry
Norman Marc
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