Aseptic process interface group

• US 5,755,155 A
• Filed: 02/28/1997
• Issued: 05/26/1998
• Est. Priority Date: 02/28/1997
• Status: Expired due to Term

• Current Assignee: Tetra Laval Holdings & Finance SA (Tetra Laval Holdings BV)
• Original Assignee: Tetra Laval Holdings & Finance SA (Tetra Laval Holdings BV)
• Inventors: Buesing, Jonathan P.
• Primary Examiner(s): Simone, Timothy F.
• Application Number:
  US08/810,613
• Time in Patent Office: 452 Days
• Field of Search: 99/468, 99/452-460, 99/486-489, 99/516, 99/534-536, 99/352-355, 134/3, 134/11, 134/13, 134/18, 134/22.13, 134/25.1, 134/25.2, 134/26, 134/31, 134/36, 134/42, 134/29, 134/40, 134/57 R, 134/56 D, 134/61, 134/120, 134/159, 134/163, 134/168 R, 134/901, 426/512-515, 137/240, 137/597, 137/606, 137/312, 137/637.2
• US Class Current: 99/453
• CPC Class Codes: A01J 7/022 Clean-in-Place Systems, i.e. CIP, for cleaning the complete milking installation in place
• CPC Class Codes: A23C 7/02 Chemical cleaning of dairy apparatus; Use of sterilisation methods therefor
• CPC Class Codes: B08B 2230/01 Cleaning with steam
• CPC Class Codes: B08B 9/0325 Control mechanisms therefor
• CPC Class Codes: B67C 3/001 Cleaning of filling devices
• CPC Class Codes: F16K 27/003 Housing formed from a plurality of the same valve elements
• CPC Class Codes: F16K 7/126 the seat being formed on a rib perpendicular to the fluid line
• CPC Class Codes: Y10T 137/4259 With separate material addition
• CPC Class Codes: Y10T 137/87249 Multiple inlet with multiple outlet

Abstract

An interface between an aseptic or pasteurized product supply vessel, one or more product dispensing machines, and a cleaning liquid supply vessel is disclosed. The interface can be used for directing milk and other foods from a process line to a packaging or other machine. In one variation, the interface has first and second spaced liquid supply valves, arranged in series, between the cleaning liquid inlet and the product dispensing machine outlet. The piping between the two valves can be drained, and optionally filled with steam or other sterilizing fluid, to provide a barrier between the cleaning fluid upstream of one valve and the food located downstream of the other valve which is en route to the packaging machine. In another variation, the interface has a product supply valve, a drain isolation valve, a drain between those two valves and itself controlled by a drain valve, and a cleaning liquid supply valve. The interface is versatile, and can be used for meeting the 3A standard for pasteurized dairy products, as well as the different standards for aseptic and near-aseptic packaging.

Claims

1. An interface between at least one sanitary product supply vessel, a product dispensing machine, and a cleaning liquid supply vessel, said interface comprising:

A. at least one product inlet adapted for connection to at least one sanitary product supply vessel to receive at least one supply of the sanitary product;

B. at least one product dispensing machine outlet adapted for connection to at least one product dispensing machine;

C. at least one cleaning liquid inlet adapted for connection to at least one cleaning liquid supply vessel for cleaning said interface;

D. at least one first cleaning liquid supply valve having at least one inlet and at least one outlet, of which the outlet is adapted to communicate with said product dispensing machine outlet; and

E. at least one second cleaning liquid supply valve having at least one inlet adapted for communicating with said cleaning liquid inlet and at least one outlet adapted for communicating with the inlet of said first cleaning liquid supply valve.

2. The interface of claim 1, further comprising at least one product supply valve having at least one inlet adapted for communicating with said product inlet and at least one outlet adapted for communicating with said product dispensing machine outlet.

3. The interface of claim 2, further comprising at least one isolation valve having at least one inlet adapted for communicating with the outlet of said product supply valve and at least one outlet adapted for communicating with said product dispensing machine outlet.

4. The interface of claim 3, in which at least one inlet of said isolation valve and at least one outlet of said product supply valve define at least one space between said isolation valve and at least one outlet of said product supply valve.

5. The interface of claim 4, further comprising at least one steam inlet and at least one steam outlet adapted for communicating with at least one space between said isolation valve and at least one outlet of said product supply valve for providing a steam buffer between said isolation valve and at least one outlet of said product supply valve.

6. The interface of claim 4, further comprising at least one drain communicating with at least one space between said isolation valve and at least one outlet of said product supply valve.

7. The interface of claim 6, further comprising at least one steam inlet and at least one steam outlet adapted for communicating with at least one space between said isolation valve and at least one outlet of said product supply valve for providing a steam buffer between said isolation valve and at least one outlet of said product supply valve.

8. The interface of claim 6, further comprising at least one drain line extending from said drain to at least one said space between said isolation valve and at least one outlet of said product supply valve.

9. The interface of claim 8, further comprising at least one drain valve in said drain line.

10. The interface of claim 8, further comprising at least first and second spaced drain valves in series in said drain line, wherein the portion of said drain lines between said drain valves defines an isolation space.

11. The interface of claim 10, further comprising at least one steam inlet and at least one steam outlet adapted for communicating with said isolation space for providing a steam buffer between said first and second spaced drain valves.

12. The interface of claim 1, further comprising at least one drain disposed between and adapted to communicate with at least one said product inlet and at least one said product dispensing machine outlet.

13. The interface of claim 1, in which at least one outlet of said first cleaning liquid supply valve and at least one inlet of said second cleaning liquid supply valve define at least one space between said first and second cleaning liquid supply valves.

14. The interface of claim 13, further comprising at least one steam inlet and at least one steam outlet adapted for communicating with said space for providing a steam buffer between said first and second cleaning liquid supply valves.

15. The interface of claim 1, in which each said element is self-draining.

16. The interface of claim 1, in which each said element is Section 3-A compatible.

17. An interface between at least one sanitary product supply vessel, at least one product dispensing machine, and at least one cleaning liquid supply vessel, said interface comprising:

A. at least one product inlet adapted for connection to the sanitary product supply vessel to receive at least one supply of the sanitary product;

B. at least one product dispensing machine outlet adapted for connection to the product dispensing machine;

C. at least one cleaning liquid inlet adapted for connection to the cleaning liquid supply vessel for cleaning said interface;

D. at least one drain;

E. at least one product supply valve having at least one inlet adapted for communicating with said product inlet and at least one outlet;

F. at least one drain valve having at least one inlet adapted for communicating with the outlet of said product supply valve and at least one outlet adapted for communicating with said drain;

G. at least one drain isolation valve having at least one inlet adapted for communicating with the outlet of said product supply valve and at least one outlet adapted for communicating with said product dispensing machine outlet; and

H. at least one cleaning liquid supply valve having at least one inlet adapted for communicating with at least one said cleaning liquid inlet and at least one outlet adapted for communicating between at least one outlet of said drain isolation valve and at least one said product dispensing machine outlet.

18. The interface of claim 17, further comprising a second drain valve in series with and spaced from said first drain valve, wherein the space between said drain valves defines an isolation space.

19. The interface of claim 18, further comprising at least one steam inlet and at least one steam outlet adapted for communicating with said isolation space for providing a steam buffer between said first and second spaced drain valves.

20. The interface of claim 17, in which each said element is self-draining.

21. The interface of claim 17, in which each said element is Section 3-A compatible.