Liquid dispenser and docking station for mating container

• US 6,109,480 A
• Filed: 07/27/1998
• Issued: 08/29/2000
• Est. Priority Date: 07/27/1998
• Status: Expired due to Term

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab, Inc.
• Inventors: Furber, John P., Monsrud, Lee J., Anderson, Troy A., Olson, Scott R.
• Primary Examiner(s): Derakshani, Philippe
• Assistant Examiner(s): BUI, THACH H
• Application Number:
  US09/122,974
• Time in Patent Office: 764 Days
• Field of Search: 222/81, 222/82, 222/83, 222/83.5, 222/88, 222/89, 222/325, 222/180, 222/185.1, 222/109
• US Class Current: 222/83
• CPC Class Codes: A47L 15/4418 in the form of liquids A47L15/4409, A47L15/4436, A47L15/4445 take precedence
• CPC Class Codes: B67B 7/28 and associated with receptacle hodlers
• CPC Class Codes: B67D 7/02 for transferring liquids other than fuel or lubricants
• CPC Class Codes: B67D 7/0277 using negative pressure
• CPC Class Codes: B67D 7/0288 Container connection means for dispensing beverages on draught B67D1/0829
• CPC Class Codes: D06F 39/022 in a liquid state D06F39/024 takes precedence

Abstract

A dispensing apparatus 10 includes a container 11 and docking station 20. A needle 35 positioned in a probe 40 which is located on a movable member 45 is guided into a container insert 60 which is positioned in the outlet 12 of the container 11.

Claims

1. An apparatus for dispensing fluid, comprising:

(a) a container for holding a liquid product to be dispensed;

(b) a docking station for receiving the container, the docking station having a support for holding the container;

(c) a pierceable self-sealing septum operatively connected to the container;

(d) a needle operatively connected to the docking station, the needle mounted on a movable mounting member with respect to the docking station whereby the needle is movable as the septum is moved proximate the needle to provide for alignment of the needle and septum; and

(e) the needle having a first end for piercing the septum and for being in fluid communication with the liquid product and a second end for transferring the liquid product out of the container.

2. The apparatus of claim 1, further comprising the docking station having a recess into which the container is inserted and the needle is positioned in the recess.

3. The apparatus of claim 1, further comprising:

(a) a probe operatively connected to the docking system, and having an elongate bore in which the needle is positioned; and

(b) a container insert operatively connected to the container, the insert having a cavity and the septum positioned in the cavity.

4. The apparatus of claim 3, further comprising a mounting member movably mounted to the docking station, the needle carried by the moveable mounting member.

5. The apparatus of claim 4, the mounting member comprising:

(a) a base member having a center section and first and second distal apertures;

(b) first and second mounting shafts, the first shaft having a first end operatively connected to the docking station and a second end positioned in the first aperture, the second shaft having a first end operatively connected to the docking station and a second end positioned in the second aperture, the base member movable on the shafts;

(c) the shafts having head members to limit movement away from the docking station; and

(d) first and second springs mounted on the first and second shafts to urge the base member away from the docking station while still allowing movement toward the docking station to allow for alignment of the probe and container insert.

6. The apparatus of claim 5, wherein the shaft and head members comprise bolts having a shaft and head and washers are positioned between the heads and the mounting member, the mounting member having a concave surface proximate the washers, whereby alignment is further facilitated.

7. The apparatus of claim 6, wherein the probe is operatively connected to the base member.

8. The apparatus of claim 3, wherein the container insert comprises:

(a) a cylindrical tube having an outer wall and an inner wall, the outer wall sized to form a friction fit with an outlet in the container, the inner wall sized to accept the probe and to align the probe as it contacts the septum;

(b) a central cylinder operatively connected to the cylindrical tube, the central cylinder having a bore having a receiving end; and

(c) a plug having a hollow core, the plug having a snap fit within the central cylinder and the septum fixed in place between the plug and the central cylinder proximate the receiving end.

9. The apparatus of claim 8, further comprising a barb around the outer wall to prevent removal of the insert after the snap fit has been established.

10. The apparatus of claim 1, further comprising:

(a) the probe having a given cross-sectional configuration; and

(b) the cavity of the insert having a cross-sectional configuration matched to the cross-sectional configuration of the probe, wherein the probe and container insert form a lock-out combination.

11. An apparatus for dispensing fluids, comprising:

(a) a container having a cavity for holding a liquid product to be dispensed having a pierceable self-sealing septum located proximate a top of the container;

(b) a pick-up tube having a first end in fluid communication with the septum and a second end positioned proximate a bottom of the container;

(c) a docking station for receiving the container, the docking station having a support for holding the container;

(d) a needle operatively connected to the docking station;

(e) the septum operatively a closure which, after the closure is connected to the container, produces a closed system, wherein the needle pierces the septum in a hands-off connection, thereby allowing the liquid product to be pumped out of the container through the needle;

thereby preventing contaminants from entering the cavity; and

(f) a vent allowing gas to pass into the container but preventing liquid product from exiting the container through the vent, thereby keeping the system closed.

12. The apparatus of claim 11, further comprising the docking station having a recess in which the container is inserted and the needle is positioned in the recess.

13. The apparatus of claim 12, wherein the vent is made from polytetrafluoroethylene.

14. The apparatus of claim 13, further comprising a container insert, operatively connected to the container, the insert having a cavity and the septum positioned in the cavity, the vent positioned on the container insert.

15. The apparatus of claim 11, further comprising the support positioned at an angle to tilt the container, wherein the pick-up tube is disposed at a low end of the container, caused by the tilt, to allow for removal of the liquid product when it is substantially dispensed.