Refrigeration system

• US 4,177,652 A
• Filed: 01/03/1978
• Issued: 12/11/1979
• Est. Priority Date: 08/24/1976
• Status: Expired due to Term

• Current Assignee: Lawrence C. Volk
• Original Assignee: Lawrence C. Volk
• Inventors: Volk, Lawrence C.
• Primary Examiner(s): Capossela, Ronald C.
• Application Number:
  US05/866,221
• Time in Patent Office: 707 Days
• Field of Search: 62/420, 62/421, 62/422, 62/423, 62/424, 62/425, 62/459, 62/239
• US Class Current: 62/239
• CPC Class Codes: B60H 1/00014 for load cargos on load transporting vehicles
• CPC Class Codes: B60H 1/3235 using sublimation, e.g. dry ice cooling or melting ice
• CPC Class Codes: B60P 3/0257 the object being a vending stall, restaurant or food kiosk
• CPC Class Codes: B60P 3/20 Refrigerated goods vehicles air treatment of goods space B60H; air-conditioning means for freight cars, isothermic wagons B61D27/0027; superstructures for refrigerated goods vehicles B62D33/048
• CPC Class Codes: F25D 2303/081 using ice cubes or crushed ice
• CPC Class Codes: F25D 3/06 Movable containers
• CPC Class Codes: Y02A 40/963 Off-grid food refrigeration

Abstract

A refrigeration system for a catering truck includes a reservoir of ice cubes. A food compartment is provided for storing food under refrigeration and includes a cooling section adjacent thereto. Ice cubes are fed from the reservoir to the cooling section. A blower circulates cool air from the cooling section through the food compartment.

Claims

1. In combination, a refrigeration system and a catering truck comprising:

a reservoir for ice cubes;

a food compartment for storing food under refrigeration having a cooling section adjacent thereto;

means for gravity feeding ice from said reservoir to said cooling section through an aperture interconnection;

a blower for directing air through an intake pipe to said cooling section and then circulating cooled air from said cooling section through said food compartment; and

an exhaust pipe interconnecting said food compartment and said blower for recirculating air in said food compartment to said blower drain means for removing ice melt from the cooling section.

2. A refrigeration system for a catering truck in accordance with claim 1 wherein said reservoir bottom is angled enabling said ice cubes to move by gravity towards said aperture, the aperture bottom edge being aligned with said reservoir bottom wall.

3. A refrigeration system in accordance with claim 2 wherein said cooling section has a lower wall below said aperture enabling said ice cubes to fall from said aperture into said cooling section.