Beverage dispenser with improved cold plate

• US 5,343,716 A
• Filed: 06/29/1993
• Issued: 09/06/1994
• Est. Priority Date: 06/29/1993
• Status: Expired due to Fees

• Current Assignee: IMI Cornelius Incorporated (Berkshire Hathaway Incorporated)
• Original Assignee: IMI Cornelius Incorporated (Berkshire Hathaway Incorporated)
• Inventors: Swanson, Craig, Taylor, Ty C., Ramon, Henry E. III
• Primary Examiner(s): Sollecito, John M.
• Application Number:
  US08/085,217
• Time in Patent Office: 434 Days
• Field of Search: 62/389, 62/390, 62/398, 62/399, 62/396, 222/146.6
• US Class Current: 62/389
• CPC Class Codes: B67D 1/0857 Cooling arrangements cooling systems per se F25B
• CPC Class Codes: F25D 3/02 using ice, e.g. ice-boxes
• CPC Class Codes: F28F 13/00 Arrangements for modifying heat-transfer, e.g. increasing, decreasing F28F1/00 - F28F11/00 take precedence
• CPC Class Codes: F28F 13/12 by creating turbulence, e.g. by stirring, by increasing the force of circulation F28F13/08 takes precedence

Abstract

A beverage dispenser of the cold plate type as shown wherein the cold plate is oriented within a housing of a dispenser such that the fluid lines extending through the cold plate extend in a pattern for preventing ice bridging occurring at the back end of the device. The cold plate also includes stainless steel wire coils within each water line along an end portion thereof for turbulating the water as it passes there through to provide for enhanced heat exchange between the fluid and the cold plate and the fluid line end portion.

Claims

1. A beverage dispenser, comprising:

a lower housing, the housing having front, rear, right and left vertical side walls extending upward to a top horizontal end wall from a bottom horizontal end surface for defining a cold plate retaining interior area,

a cold plate held within the cold plate retaining interior area and the cold plate having front, rear, right and left ends, and the cold plate positioned within the housing interior are along the bottom end surface thereof wherein the cold plate front, rear, right and left ends are positioned adjacent the housing front, rear, right and left vertical end walls respectively, the cold plate having a top surface and having one or more beverage lines extending through an interior thereof below the cold plate top surface, the one or more beverage lines each having an inlet end extending from the cold plate for connection to a source of beverage and each one or more beverage line having an outlet end for connecting to a beverage dispensing valve so that ice retained on the cold plate top surface provides for heat exchange cooling of a beverage as it passes through its respective beverage line through the cold plate from the source thereof to a beverage dispensing valve, and the one or more lines passing through the cold plate in a direction from the front end to the rear end thereof in a serpentine fashion wherein the one or more lines alternate back and forth between the cold plate right and left ends so that a high heat exchange portion of each of the one or more lines lies substantially within and defines a high heat exchange front portion of the cold plate and where the high heat exchange cold plate portion lies substantially directly below an access opening in the housing top horizontal end wall.

2. The dispenser as defined in claim 1, and further including a dispensing tower for supporting the one ore more beverage dispensing valves thereon, the tower secured to a top surface of the housing top horizontal end wall adjacent and along an intersection thereof with the housing rear vertical wall whereby the tower is positioned above a low heat exchange rear portion of the cold plate.

3. The dispenser as defined in claim 1, and the inlet of each one or more beverage line entering the cold plate along the front end thereof.

4. The dispenser as defined in claim 1, and the outlet of each one or more beverage line exiting the cold plate from the rear end thereof.

5. The dispenser as defined in claim 1, and the cold plate having ice bin retaining walls secured thereto around a perimeter of the cold plate top surface and extending upward therefrom for defining an ice retaining bin there above.

6. A beverage dispenser, comprising:

a lower housing, the housing having front, rear, right and left vertical side walls extending upward to a top horizontal end wall from a bottom horizontal end surface for defining a cold plate retaining interior area,

a cold plate held within the cold plate retaining interior are and the cold plate having front, rear, right and left ends, and the cold plate positioned within the housing interior are along the bottom end surface thereof wherein the cold plate front, rear, right and left ends are positioned adjacent the housing front, rear, right and left vertical end walls respectively, the cold plate having a top surface and having one or more beverage lines extending through an interior thereof below the cold plate top surface, the one or more beverage lines each having an inlet end extending from the cold plate for connection to a source of beverage and each one or more beverage line having an outlet end for connecting to a beverage dispensing valve so that ice retained on the cold plate top surface provides for heat exchange cooling of a beverage as it passes through its respective beverage line through the cold plate from the source thereof to a beverage dispensing valve, and the one or more lines each having an initial high heat exchange portion defined by an initial heat exchange portion generally located in a front portion of said plate defining a high heat exchange portion of the cold plate so that with the positioning of the cold plate within the housing interior with respect to the vertical side walls thereof the high heat exchange portion of the cold plate lies substantially directly below an access opening in the housing top horizontal end wall.

7. The dispenser as defined in claim 6, and further including a dispensing tower for supporting the one or more beverage dispensing valves thereon, the tower secured to a top surface of the housing top horizontal end wall adjacent and along an intersection thereof with the housing rear vertical wall whereby the tower is positioned above a low heat exchange portion of the cold plate.

8. The dispenser as defined in claim 6, and the inlet of each one or more beverage line entering the cold plate along the front end thereof.

9. The dispenser as defined in claim 6, and the outlet of each one or more beverage line exiting the cold plate from the rear end thereof.

10. The dispenser as defined in claim 6, and the cold plate having ice bin retaining walls secured thereto around a perimeter of the cold plate top surface and extending upward therefrom for defining an ice retaining bin there above.

11. A beverage dispenser, comprising:

a lower housing, the housing having front, rear, right and left vertical side walls extending upward to a top horizontal end wall from a bottom horizontal end surface for defining a cold plate retaining interior area,

a cold plate held within the cold plate retaining interior area and the cold plate having front, rear, right and left ends, and the cold plate positioned within the housing interior are along the bottom end surface thereof wherein the cold plate front, rear, right and left ends are positioned adjacent the housing front, rear, right and left vertical end walls respectively, the cold plate having a top surface and having one or more beverage lines extending through an interior thereof below the cold plate top surface, the one or more beverage lines each having an inlet end extending from the cold plate for connection to a source of beverage and each one or more beverage line having an outlet end for connecting to a beverage dispensing valve so that ice retained on the cold plate top surface provides for heat exchange cooling of a beverage as it passes through its respective beverage line through the cold plate from the source thereof to a beverage dispensing valve, and the one or more lines entering the cold plate adjacent the front end thereof and passing through the cold plate in a direction from the front end to the rear end thereof in a serpentine fashion wherein the one or more lines alternate back and forth between the cold plate right and left ends, and the one or more lines each having an initial high heat exchange portion wherein the high heat exchange portion of each of the one or more lines lies substantially within and defines a high heat exchange front portion of the cold plate and wherein the one or more beverage lines have a low heat exchange portion within and defining a low heat exchange portion of the cold plate, and the high heat exchange cold plate portion positioned substantially directly below an access opening in the housing top horizontal end wall for permitting easy physical access to the cold plate top surface lying above the cold plate high heat exchange portion.

12. The dispenser as defined in claim 11, and further including a dispensing tower for supporting the one or more beverage dispensing valves thereon, the tower secured to a top surface of the housing top horizontal end wall adjacent and along an intersection thereof with the housing rear vertical wall whereby the tower is positioned above a low heat exchange portion of the cold plate.

13. The dispenser as defined in claim 11, and the outlet of each one or more beverage line exiting the cold plate from the rear end thereof.

14. The dispenser as defined in claim 11, and the cold plate having ice bin retaining walls secured thereto around a perimeter of the cold plate top surface and extending upward therefrom for defining an ice retaining bin there above.