Device and method for cleaning a tube

• US 20040250842A1
• Filed: 06/10/2003
• Published: 12/16/2004
• Est. Priority Date: 06/10/2003
• Status: Abandoned Application

• Current Assignee: FHT, Inc.
• Original Assignee: FHT, Inc.
• Inventors: Adams, John A., Vorndran, Thomas E., Brovold, Christopher T.
• Application Number:
  US10/457,898
• Publication Number:
  US 20040250842A1
• Time in Patent Office: Days
• US Class Current: 134/169C
• CPC Class Codes: B08B 2209/024 by creating a shock wave in the cleaning liquid
• CPC Class Codes: B08B 9/0321 using pressurised, pulsating or purging fluid E04F17/126 takes precedence

Abstract

A method and device for cleaning the inside of a liquid dispensing tube that is contaminated with a previously dispensed liquid. The contaminated liquid dispensing tube is filled with a cleaning fluid. The liquid dispensing tube is then impacted with an impacting device. The impacting of the liquid dispensing tube creates pressure waves in the cleaning fluid. The pressure waves dislodge the liquid contaminate from the inside of the liquid dispensing tube while a flowing cleaning fluid flushes the liquid contaminate out of the liquid dispensing tube.

Claims

1. ) A tube cleaning device for cleaning the inside of a liquid dispensing tube, wherein said liquid dispensing tube is contaminated with liquid contaminate, said tube cleaning device comprising:

A. cleaning fluid inside said liquid dispensing tube,

B. an impacting device for impacting said liquid dispensing tube, wherein said impacting device generates pressure waves within the cleaning fluid inside said liquid dispensing tube, wherein said pressure waves dislodge said liquid contaminate from the inside of said liquid dispensing tube, and

C. a flushing device for flushing said dislodged liquid contaminate from said liquid dispensing tube along with said cleaning fluid.

2. ) The tube cleaning device as in claim 1, wherein said pressure waves are alternating pressure waves.

3. ) The tube cleaning device as in claim 1, wherein said cleaning fluid is diluent.

4. ) The tube cleaning device as in claim 1, wherein said cleaning fluid is sterilized water.

5. ) The tube cleaning device as in claim 1, wherein said cleaning fluid is a solvent.

6. ) The tube cleaning device as in claim 1, wherein said impacting device comprises:

A. a motor,

B. an arm rotatably connected to said motor,

C. at least one roller connected to the end of said arm,

wherein said motor rotates said arm so that said at least one roller compresses and releases said liquid dispensing tube to generate said pressure waves.

7. ) The tube cleaning device as in claim 6, wherein said at least one roller is one roller.

8. ) The tube cleaning device as in claim 6, wherein said at least one roller is a plurality or rollers.

9. ) The tube cleaning device as in claim 1, wherein said impacting device comprises:

A. a motor,

B. a striker connected to said motor,

wherein said motor controls said striker so that said striker altematingly compresses and releases said liquid dispensing tube to generate said pressure waves.

10. ) The tube cleaning device as in claim 1, wherein said flushing device is a pump for pumping said cleaning fluid through said liquid dispensing tube.

11. ) The tube cleaning device as in claim 1, further comprising a computer in communication control with said impacting device and said flushing device for automated control of said impacting device and said flushing device.

12. ) The tube cleaning device as in claim 1, wherein said liquid dispensing tube is a flexible liquid dispensing tube, wherein said impacting device deforms said flexible liquid dispensing tube when impacting said liquid dispensing tube.

13. ) The tube cleaning device as in claim 1, wherein said impacting device does not break contact with said liquid dispensing tube.

14. ) The tube cleaning device as in claim 1, wherein said liquid dispensing tube is a plurality of liquid dispensing tubes.

15. ) The tube cleaning device as in claim 14, wherein said impacting device comprises a plurality of impacting mechanisms for impacting said plurality of liquid dispensing tubes.

16. ) The tube cleaning device as in claim 15 wherein said plurality of impacting mechanisms are a plurality of rollers.

17. ) The tube cleaning device as in claim 15, wherein said plurality of liquid dispensing tubes are positioned vertically, and wherein said plurality of impacting mechanisms are positioned vertically to impact said vertically positioned liquid dispensing tubes.

18. ) A tube cleaning device for cleaning the inside of a liquid dispensing tube, wherein said liquid dispensing tube is contaminated with liquid contaminate, said tube cleaning device comprising:

A. cleaning fluid means filled inside said liquid dispensing tube,

B. an impacting means for impacting said liquid dispensing tube, wherein said impacting means generates pressure waves within the cleaning fluid means inside said liquid dispensing tube, wherein said pressure waves dislodge said liquid contaminate from the inside of said liquid dispensing tube, and

C. a flushing means for flushing said dislodged liquid contaminate from said liquid dispensing tube along with said cleaning fluid means.

19. ) The tube cleaning device as in claim 18, wherein said pressure waves are alternating pressure waves.

20. ) The tube cleaning device as in claim 18, wherein said cleaning fluid means is diluent.

21. ) The tube cleaning device as in claim 18, wherein said cleaning fluid means is sterilized water.

22. ) The tube cleaning device as in claim 18, wherein said cleaning fluid is a solvent.

23. ) The tube cleaning device as in claim 18, wherein said impacting means comprises:

A. a motor means,

B. an arm means rotatably connected to said motor means,

C. at least one roller means connected to the end of said arm means,

wherein said motor means rotates said arm means so that said at least one roller means compresses and releases said liquid dispensing tube to generate said pressure waves.

24. ) The tube cleaning device as in claim 18, wherein said impacting means comprises:

A. a motor means,

B. a striker means connected to said motor means,

wherein said motor means controls said striker means so that said striker means altematingly compresses and releases said liquid dispensing tube to generate said pressure waves.

25. ) The tube cleaning device as in claim 18, wherein said flushing means is a pump for pumping said cleaning fluid through said liquid dispensing tube.

26. ) A method for cleaning the inside of a liquid dispensing tube, wherein said liquid dispensing tube is contaminated with liquid contaminate, said method comprising the steps of:

A. filling or substantially filling said liquid dispensing tube with a cleaning fluid,

B. impacting said liquid dispensing tube with an impacting device,

C. creating pressure waves within said cleaning fluid as the result of said impacting,

D. dislodging said liquid contaminate from the inside of said liquid dispensing tube as the result of said pressure waves, and

E. flushing said dislodged liquid contaminate from said liquid dispensing tube along with said cleaning fluid.

27. ) The method as in claim 26, wherein said pressure waves are alternating pressure waves.

28. ) The method as in claim 26, wherein said cleaning fluid is diluent.

29. ) The method as in claim 26, wherein said cleaning fluid is sterilized water.

30. ) The method as in claim 26, wherein said cleaning fluid is a solvent.

31. ) The method as in claim 26, wherein said impacting device comprises:

A. a motor,

B. an arm rotatably connected to said motor,

C. at least one roller connected to the end of said arm,

wherein said motor rotates said arm so that said at least one roller compresses and releases said liquid dispensing tube to generate said pressure waves.

32. ) The method as in claim 26, wherein said impacting device comprises:

A. a motor,

B. a striker connected to said motor,

wherein said motor controls said striker so that said striker altematingly compresses and releases said liquid dispensing tube to generate said pressure waves.

33. ) The method as in claim 26, wherein said flushing is accomplished by utilizing a pump for pumping said cleaning fluid through said liquid dispensing tube.