Dispensing tap and methods for using the same

Patent metadata

Field	Value
Publication number	US-10994985-B2
Application number	US-201916685258-A
Country	US
Kind code	B2
Filing date	Nov 15, 2019
Priority date	Sep 27, 2018
Publication date	May 4, 2021
Grant date	May 4, 2021

Abstract

A dispensing tap for liquids includes a body connected to the neck of a container, a dispensing head with an outlet or mouth, and a throat connecting the body to the dispensing head. A shut off valve is configured for sealing engagement with the mouth of the dispensing head, and a piston is axially guided within the dispensing head. The piston includes a peripheral seal slidably engaged with an interior surface of the dispensing head, and a valve stem coupled to the shut off valve. The piston is selectively actuable between a normally closed position an open position. A spring is captured between the piston and the dispensing head normally biasing the piston and shut off valve to the closed position. A vent is in communication with an interior of the body and the vent is opened and closed with movement of the piston and shut off valve.

First claim

What is claimed is:

1. A dispensing tap comprising:
a body;
a dispensing head;
a throat connecting the body to the dispensing head and providing a flow path from the body to the dispensing head,
the dispensing head including a mouth;

a shut off valve configured for sealing engagement with the mouth of the dispensing head;
a piston axially guided within said dispensing head,
said piston including an actuator portion at an upper end thereof, said actuator portion including a peripheral seal slidably engaged with an interior surface of the dispensing head,
said piston having a lower end including a valve stem coupled to said shut off valve, the piston being selectively actuable between a normally closed position wherein the shut off valve is seated within the mouth, and an open position wherein the shut off valve is disengaged from the mouth;

a spring captured between the actuator portion of said piston and the dispensing head and normally biasing said piston and shut off valve to said closed position; and
a vent adjacent to said actuator portion of said piston and in communication with an interior of said body, said vent being in operable communication with said peripheral seal.

2. The dispensing tap of claim 1 wherein the spring comprises a slotted tubular spring element formed from a tensile polymer, said slotted tubular spring element being captured between opposing loading cones formed on said piston and said dispensing head.

3. The dispensing tap of claim 1 wherein the spring comprises a coil spring.

4. The dispensing tap of claim 1 wherein a cross-sectional flow area of the mouth is greater than a cross-sectional flow area of the throat.

5. The dispensing tap of claim 4 wherein a diameter of said peripheral seal of said piston is larger than a diameter of said shut off valve.

6. The dispensing tap of claim 1 wherein the vent includes a ball valve disposed within an interior of the body.

7. The dispensing tap of claim 5 wherein said vent includes an extension tube and said ball valve is disposed at a terminal end of the extension tube.

8. The dispensing tap of claim 1 wherein the vent includes a vent opening on an interior surface of the dispensing head and extends into an interior of said body.

9. The dispensing tap of claim 8 wherein the vent includes a ball valve.

10. The dispensing tap of claim 9 wherein said peripheral seal is configured for sealing engagement with said vent opening,
said peripheral seal being engaged with said vent opening when said piston is in said closed position, and being disengaged from said vent opening when said piston is in said open position.

11. The dispensing tap of claim 10 wherein a cross-sectional flow area of the mouth is greater than a cross-sectional flow area of the throat.

12. The dispensing tap of claim 8 wherein said peripheral seal is configured for sealing engagement with said vent opening,
said peripheral seal being engaged with said vent opening when said piston is in said closed position and being disengaged from said vent opening when said piston is in said open position.

13. The dispensing tap of claim 8 wherein a cross-sectional flow area of the mouth is greater than a cross-sectional flow area of the throat.

14. The dispensing tap of claim 1 wherein said vent includes an expandable venting bag.

15. The dispensing tap of claim 1 wherein a diameter of said peripheral seal of said piston is larger than a diameter of said shut off valve.

16. The dispensing tap of claim 1 wherein said piston includes an actuator button.

17. The dispensing tap of claim 16 wherein said dispensing head includes finger holds extending from an exterior surface thereof.

18. The dispensing tap of claim 1 wherein said piston includes an actuator lever.

19. The dispensing tap of claim 18 wherein said dispensing head includes finger holds extending from an exterior surface thereof.

20. A dispensing tap comprising:
a body;
a dispensing head including an outlet;
a throat connecting the body to the dispensing head,
a shut off valve configured for sealing the outlet of the dispensing head;
a piston disposed within said dispensing head, said piston having an actuator portion and a lower end including a valve stem coupled to said shut off valve, the piston being selectively actuable between a closed position and an open position;
a spring captured between the actuator portion of said piston and the dispensing head and normally biasing said piston and shut off valve to said closed position, said spring comprising a slotted tubular spring element formed from a tensile polymer, said slotted tubular spring element being captured between opposing loading cones formed on said piston and said dispensing head; and
a vent adjacent to said actuator portion of said piston.

Assignees

• Silgan Dispensing Systems Corp

Inventors

• Driskell William
• Ramsuer Brandon
• Deman Eelco H
• Van Wieringen Niels F G
• Zuijderduijn Paulus

Classifications

• B05B11/1076

  Traction springs, e.g. stretchable sleeve · CPC title

• B67D3/044

  and venting means operated automatically with the tap · CPC title

• F16K27/02

  of lift valves (for reducing the flow resistance of screw-spindle lift-valves F16K1/06) · CPC title

• F16K15/04

  shaped as balls · CPC title

• F16K24/02

  the enclosure being itself a valve, tap, or cock · CPC title