Fill probe with in-line mixer

• US 6,675,840 B2
• Filed: 09/20/2001
• Issued: 01/13/2004
• Est. Priority Date: 09/20/2001
• Status: Expired due to Fees

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab, Inc.
• Inventors: Johnson, Roy F., Jungmann, Ronald D., Mullen, Richard V.
• Primary Examiner(s): MAUST, TIMOTHY LEWIS
• Application Number:
  US09/960,028
• Publication Number:
  US 20030051765A1
• Time in Patent Office: 845 Days
• Field of Search: 141/9, 141/90-91, 141/18, 141/74, 141/79, 141/100, 141/103, 141/104, 141/105, 141/255, 141/256, 141/259, 141/392, 366/98, 366/168.1, 366/169.1, 366/157.3, 239/306
• US Class Current: 141/9
• CPC Class Codes: B01F 27/1125 with vanes or blades extending parallel or oblique to the stirrer axis
• CPC Class Codes: B01F 27/90 with paddles or arms
• CPC Class Codes: B01F 35/32015 Flow driven
• CPC Class Codes: B01F 35/3203 Gas driven
• CPC Class Codes: B01F 35/712 for feeding fluids
• CPC Class Codes: B01F 35/88 by feeding the materials batchwise

Abstract

A fill probe with an in-line mixer accelerates and facilitates automation of a fill and mix procedure required in formulating certain chemical products. In some formulas, the concentrated chemical components that combine to form the resulting formula (e.g., teat dip) have a wide range of viscosities. The in-line positioning of the mixing attachment with the fill probe on the outside of the fill probe creates a dual action mixing operation that mixes the components as they are deliver to a mixing container and continues to mix them after they are combined with other chemicals within the mixing container. By using a combination fill probe and in-line mixer of the claimed design, a user can automate the fill and mix process, decrease the required mix time, and reduce foaming and spillage of chemicals.

Claims

1. An apparatus for mixing a plurality of component chemicals being delivered to a first mixing container, the apparatus comprising:

a fill probe removably positioned within the first mixing container and comprising a tube-like structure having an input aperture being adapted to receive the plurality of chemical components, an output aperture being adapted to deliver the plurality of chemical components into the first mixing container, a mixer aperture, and a handle operable for removing the fill probe from the first mixing container and inserting the fill probe into a second mixing container; and

a mixer including a mixer motor, a mixing attachment, a mixer shaft having a proximal end extending through the mixer aperture of the fill probe and being operably attached to the mixer motor and a distal end extending through the output aperture of the fill probe and being operably attached to the mixing attachment,

wherein the mixing attachment is positioned in an output flow of the chemical components from the fill probe and is positioned outside of the fill probe to mix the plurality of chemical components delivered to the mixing container through the output aperture of the fill probe.

2. The apparatus of claim 1 wherein the output aperture and the mixer aperture of the fill probe are aligned on a common axis, the output aperture being located in the distal end of the fill probe along the common axis and the mixer aperture being located in the proximal end of the fill probe along the common axis.

3. The apparatus of claim 1 further comprising:

an adapter having a bottom opening and a top opening and being removably attached to the mixer aperture of the fill probe, wherein the bottom opening is adapted to rotatably receive the proximal end of the mixer shaft and the top opening is adapted to fixedly receive the mixer motor.

4. The apparatus of claim 1 further comprising at least one lip seal positioned in the bottom opening of the adapter to allow rotation of the mixer shaft and to seal the adapter against leakage of the chemical components from the fill probe to the mixer motor through the adapter.

5. The apparatus of claim 1 further comprising at least one O-ring positioned in the bottom opening of the adapter to allow rotation of the mixer shaft and to seal the adapter against leakage of the chemical components from the fill probe to the mixer motor through the adapter.

6. The apparatus of claim 1 further comprising an elastomer material positioned in the bottom opening of the adapter to allow rotation of the mixer shaft and to seal the adapter against leakage of the chemical components from the fill probe to the mixer motor through the adapter.

7. An apparatus for mixing a plurality of component chemicals being delivered to a mixing container, the apparatus comprising:

a fill probe comprising a tube-like structure having an input aperture being adapted to receive the plurality of chemical components, an output aperture being adapted to deliver the plurality of chemical components into the mixing container, and a mixer aperture;

a mixer including a mixer motor, a mixing attachment, a mixer shaft having a proximal end extending through the mixer aperture of the fill probe and being operably attached to the mixer motor and a distal end extending through the output aperture of the fill probe and being operably attached to the mixing attachment, wherein the mixing attachment is positioned in an output flow of the chemical components from the fill probe and is positioned outside of the fill probe to mix the plurality of chemical components delivered to the mixing container through the output aperture of the fill probe;

a chemical delivery control module controlling the delivery of the plurality of chemical components to the fill probe; and

a mixer control module controlling motive force delivered to the mixer motor.

8. The apparatus of claim 7 wherein the plurality of chemical components delivered to the mixing container form a chemical surface within the mixing container and further comprising:

a chemical surface level determination module communicatively coupled to the mixer control module and the chemical delivery control module and conditioning delivery of the motive force to the mixer motor on the chemical surface in the mixing container being above a threshold height.

9. The apparatus of claim 8 wherein the threshold height is designated to be above the mixing attachment when the fill probe is inserted into the mixing container.

10. The apparatus of claim 8 wherein a determination of whether the chemical surface is above the threshold height is based on a predetermined time of delivery of the chemical components.

11. The apparatus of claim 8 wherein a determination of whether the chemical surface is above the threshold height is based on a signal received from a sensor detecting whether the chemical surface is above the threshold height in the mixing container.

12. The apparatus of claim 8 wherein a determination of whether the chemical surface is above the threshold height is based on a measured volume of the chemical components being delivered to the mixing container.

13. The apparatus of claim 7 further comprising at least one lip seal positioned in the bottom opening of the adapter to allow rotation of the mixer shaft and to seal the adapter against leakage of the chemical components from the fill probe to the mixer motor through the adapter.

14. The apparatus of claim 7 further comprising at least one O-ring positioned in the bottom opening of the adapter to allow rotation of the mixer shaft and to seal the adapter against leakage of the chemical components from the fill probe to the mixer motor through the adapter.

15. The apparatus of claim 7 further comprising an elastomer material positioned in the bottom opening of the adapter to allow rotation of the mixer shaft and to seal the adapter against leakage of the chemical components from the fill probe to the mixer motor through the adapter.

16. An apparatus for mixing a plurality of component chemicals being delivered to a mixing container, the apparatus comprising:

a fill probe comprising a tube-like structure having an input aperture being adapted to receive the plurality of chemical components, an output aperture being adapted to deliver the plurality of chemical components into the mixing container, a mixer aperture, and an exterior surface along the tube-like structure;

a mixer including a mixer motor, a mixing attachment, a mixer shaft having a proximal end extending through the mixer aperture of the fill probe and being operably attached to the mixer motor and a distal end extending through the output aperture of the fill probe and being operably attached to the mixing attachment, wherein the mixing attachment is positioned in an output flow of the chemical components from the fill probe and is positioned outside of the fill probe to mix the plurality of chemical components delivered to the mixing container through the output aperture of the fill probe; and

a cleaning cuff positioned on the exterior surface of the fill probe to clean residual chemicals from the exterior surface of the fill probe when the cleaning cuff slides along the tube-like structure.

17. The apparatus of claim 16 further comprising at least one lip seal positioned in the bottom opening of the adapter to allow rotation of the mixer shaft and to seal the adapter against leakage of the chemical components from the fill probe to the mixer motor through the adapter.

18. The apparatus of claim 16 further comprising at least one O-ring positioned in the bottom opening of the adapter to allow rotation of the mixer shaft and to seal the adapter against leakage of the chemical components from the fill probe to the mixer motor through the adapter.

19. The apparatus of claim 16 further comprising an elastomer material positioned in the bottom opening of the adapter to allow rotation of the mixer shaft and to seal the adapter against leakage of the chemical components from the fill probe to the mixer motor through the adapter.

20. A method of mixing a plurality of component chemicals being delivered to a mixing container, the method comprising:

providing a fill probe having an input aperture, an output aperture, and a tube-like structure inserted into the mixing container, the fill probe further having a mixing attachment attached thereto and extending outside the tube-like structure of the fill probe into the mixing container;

inputting chemical components to the input aperture of the fill probe to deliver the chemical components into the mixing container;

applying motive force to the mixing attachment so that the chemical components exiting the output aperture of the fill probe are mixed by the mixing attachment and the chemical components already contained in the mixing container are also mixed by the mixing attachment;

ceasing input of the chemical components to the input aperture of the fill probe, after applying motive force to the mixing attachment; and

maintaining application of the motive force to the mixing attachment until the chemical components contained in the mixing container are thoroughly mixed, after the operation of ceasing input of the chemical components.

21. A method of mixing a plurality of component chemicals being delivered to a mixing container, wherein the chemical components delivered to the mixing container form a chemical surface therein, the method comprising:

providing a fill probe having an input aperture, an output aperture, and a tube-like structure inserted into the mixing container, the fill probe further having a mixing attachment attached thereto and extending outside the tube-like structure of the fill probe into the mixing container;

inputting chemical components to the input aperture of the fill probe to deliver the chemical components into the mixing container;

applying motive force to the mixing attachment so that the chemical components exiting the output aperture of the fill probe are mixed by the mixing attachment and the chemical components already contained in the mixing container are also mixed by the mixing attachment, wherein application of the motive force to the mixing attachment, relative to the operation of inputting chemical components to the input aperture of the fill probe, is delayed until the chemical surface within the mixing container is determined to be above a threshold height;

ceasing input of the chemical components to the input aperture of the fill probe, after applying motive force to the mixing attachment; and

maintaining application of the motive force to the mixing attachment until the chemical components contained in the mixing container are thoroughly mixed, after the operation of ceasing input of the chemical components.

22. The method of claim 21 wherein the threshold height is designated to be above the mixing attachment when the fill probe is inserted into the mixing container.

23. The method of claim 21 wherein a determination of whether the chemical surface is above the threshold height is based on a predetermined time of delivery of the chemical components.

24. The method of claim 21 wherein a determination of whether the chemical surface is above the threshold height is based on a signal received from a sensor detecting whether the chemical surface is above the threshold height in the mixing container.

25. The method of claim 21 wherein a determination of whether the chemical surface is above the threshold height is based on a measured volume of the chemical components being delivered to the mixing container.

26. A method of mixing a plurality of component chemicals being delivered to a mixing container, the method comprising:

providing a fill probe having an input aperture, an output aperture, a tube-like structure inserted into the mixing container, and an exterior surface along the tube-like structure, the fill probe further having a mixing attachment attached thereto and extending outside the tube-like structure of the fill probe into the mixing container;

inputting chemical components to the input aperture of the fill probe to deliver the chemical components into the mixing container;

applying motive force to the mixing attachment so that the chemical components exiting the output aperture of the fill probe are mixed by the mixing attachment and the chemical components already contained in the mixing container are also mixed by the mixing attachment;

ceasing input of the chemical components to the input aperture of the fill probe, after applying motive force to the mixing attachment;

maintaining application of the motive force to the mixing attachment until the chemical components contained in the mixing container are thoroughly mixed, after the operation of ceasing input of the chemical components.

sliding a cleaning cuff along the exterior surface of the fill probe to clean residual chemicals from the exterior surface of the fill probe.