IP Library Granted Patent US 7,748,228
Granted Patent B2
US 7,748,228 · App. 11/653,040 · Granted Jul 6, 2010

Refrigeration system capable of multi-faceted operation

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Quick Facts
Patent No.
US 7,748,228
App. No.
11/653,040
Granted
Jul 6, 2010
Kind
B2
Abstract

A storage system that has variable temperature includes one or more drawers. The one or more drawers are independently operable of one another. A heating and cooling system is in thermal communication with the one or more drawers. The heating and cooling system generates even air-flow around all sides of the one or more drawers for heating and/or cooling thereof.

Claims (30)

1. A storage system that has variable temperature, the system comprising:

a plurality of drawers, wherein each drawer is capable of operating in any mode selected from the group consisting of refrigerator mode, freezer mode, thaw cabinet mode, and blast chiller mode, at any time when the storage system is in use, independently of one another; and

a heating and cooling system in thermal communication with said plurality of drawers, said heating and cooling system generating even air-flow around all sides of said plurality of drawers for heating and/or cooling thereof,

wherein each of said plurality of drawers is disposed within an associated housing assembly when in a closed position, such that each of said plurality of drawers is exposed to the interior atmosphere of said associated housing assembly,

wherein each said associated housing assembly for each of said plurality of drawers is separate and apart from other associated housing assemblies for others of said plurality of drawers disposed within said storage system, and

wherein each of said associated housing assemblies further comprises an evaporator compartment separate and apart from evaporator compartments of all other associated housing assemblies in said storage system.

2. The system of claim 1 , wherein said heating and cooling system has at least one evaporator located at a rear compartment of said plurality of drawers.

3. The system of claim 2 , wherein said at least one evaporator has an air duct to distribute cooled air evenly over a top opening of each of said plurality of drawers.

4. The system of claim 3 , wherein said air duct has a thermal mass.

5. The system of claim 4 , wherein said thermal mass is a gel pack.

6. The system of claim 1 , wherein said heating and cooling system has at least one condenser, at least one compressor, and at least one evaporator.

7. The system of claim 1 , further comprising at least one condenser fan.

8. The system of claim 1 , further comprising a display for user input.

9. The system of claim 1 , wherein said plurality of drawers are free of lids.

10. The storage system of claim 1 , wherein each of said associated housing assemblies further comprises an air duct disposed therein, wherein said air flow passes through said air duct and about all said sides of said drawer disposed within said associated housing assembly.

11. A method for heating and/or cooling a storage system comprising a plurality of drawers and a plurality of housing assemblies, the method comprising:

generating even air-flow around all sides of said plurality of drawers by a heating and cooling system for heating and/or cooling thereof; and

operating each of said plurality of drawers in any mode selected from the group consisting of refrigerator mode, freezer mode, thaw cabinet mode, and blast chiller mode, at any time when the storage system is in use, independently of one another,

wherein each of said plurality of drawers is disposed within an associated housing assembly when in a closed position, such that said drawer is exposed to the interior atmosphere of said associated housing assembly,

wherein each of said associated housing assemblies for each of said plurality of drawers is separate and apart from other associated housing assemblies for others of said plurality of drawers disposed within said storage system, and

wherein each of said associated housing assemblies further comprises an evaporator compartment separate and apart from evaporator compartments of all other associated housing assemblies in said storage system.

12. The method of claim 11 , wherein said heating and cooling system has at least one evaporator located at a rear compartment of said plurality of drawers.

13. The method of claim 12 , wherein said at least one evaporator has an air duct to distribute cooled air evenly over a top opening of each of said plurality of drawers.

14. The method of claim 13 , wherein said air duct has a thermal mass.

15. The method of claim 14 , wherein said thermal mass is a gel pack.

16. The method of claim 11 , further comprising detecting a temperature in said plurality of drawers.

17. The method of claim 11 , further comprising storing one or more parameters of the heating and/or cooling a storage system in a memory.

18. The method of claim 11 , further comprising inputting one or more predetermined parameters.

19. The method of claim 11 , further comprising sounding an alarm to indicate a predetermined condition.

20. The method of claim 11 , wherein each of said associated housing assemblies further comprises an air duct disposed therein, wherein said air flow passes through said air duct and about all said sides of said drawer disposed within said associated housing assembly.

Assignments (7)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Aug 1, 2025
From: MEDIOBANCA - BANCA DI CREDITO FINANZIARIO S.P.A.
To: THE DELFIELD COMPANY LLC; FRYMASTER L.L.C.; MANITOWOC FSG OPERATIONS, LLC
Reel/Frame 072330/0676 →
RELEASE OF SECURITY INTEREST IN UNITED STATES PATENTS Recorded Aug 2, 2022
From: JPMORGAN CHASE BANK, N.A.
To: APPLIANCE SCIENTIFIC, INC.; CLEVELAND RANGE, LLC; THE DELFIELD COMPANY, LLC; ENODIS CORPORATION; GARLAND COMMERCIAL INDUSTRIES LLC; MANITOWOC FOODSERVICE COMPANIES, LLC; FRYMASTER L.L.C.
Reel/Frame 061053/0411 →
SECURITY INTEREST Recorded Jul 28, 2022
From: THE DELFIELD COMPANY LLC
To: MEDIOBANCA - BANCA DI CREDITO FINANZIARIO S.P.A, AS SECURITY AGENT
Reel/Frame 060660/0084 →
SECURITY INTEREST Recorded Mar 25, 2016
From: APPLIANCE SCIENTIFIC, INC.; CLEVELAND RANGE, LLC; THE DELFIELD COMPANY, LLC; ENODIS CORPORATION; GARLAND COMMERCIAL INDUSTRIES LLC; MANITOWOC FOODSERVICE COMPANIES, LLC; FRYMASTER L.L.C.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 038263/0001 →
RELEASE OF SECURITY INTEREST Recorded Mar 4, 2016
From: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: THE DELFIELD COMPANY, LLC
Reel/Frame 037897/0240 →
SECURITY AGREEMENT Recorded Mar 19, 2009
From: DELFIELD COMPANY LLC, THE
To: JPMORGAN CHASE BANK, N.A. AS AGENT
Reel/Frame 022416/0312 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2007
From: WALKER, DARREL JAY; SMITH, WILLIAM E.; WING, HARRY EDWARD
To: DELFIELD COMPANY, LLC, THE
Reel/Frame 019165/0044 →