Straw cap with an open and closed valve mechanism

1. A container that is adapted to hold a fluid for dispensing, comprising:

a container having an opening;

a cap structure mountable to the container and enclosing the opening, the cap structure having a cap body, a first collar extending outwardly from an exterior surface of the cap body and forming an outer opening in the cap structure at a proximal end of the first collar, a second collar extending inwardly from an interior surface of the cap body and forming an inner opening at a distal end of the second collar and a first fluid passage between the inner opening and the first collar, the second collar having an inner surface and a plug spaced from the inner surface, the plug partially blocking the fluid passage, and a plurality of first lips extending from the plug to the inner surface of the second collar to define at least one orifice;

a valve disposed within both the first collar and a proximal end of the second collar and extending outwardly from the first collar, the valve comprises a cylindrical surface forming a second fluid passage extending from a distal end to a proximal end, a valve opening disposed at the distal end, and at least one first sealing member disposed at the distal end, the at least one first sealing member is operable to be seated on the plug and form a seal between a surface of the at least one first sealing member and the inner surface of the second collar and between an inner surface of the at least one first sealing member and an outer surface of the plug when the valve is in a closed position, wherein the closed position prevents flow of a fluid through the valve opening, the valve is operable to move between the closed position and an open position, wherein the open position permits flow of the fluid through the at least one orifice; and

a hollow tubular member connected to the distal end of the second collar and extending away from the distal end of the second collar, the hollow tubular member in fluid communication with the valve when the valve is in the open position and the hollow tubular member is not in fluid communication with the valve when the valve is in the closed position.

2. The container of claim 1 , wherein the outer surface of the plug is tapered and is operable to compress the at least one first sealing member between the inner surface of the second collar and the outer surface of the plug when the valve is in the closed position.

3. The container of claim 1 , wherein the valve includes at least one second sealing member, wherein the at least one second sealing member forms a hermetic seal by pressing against an inner surface of the first collar, and the at least one first sealing member forms a hermetic seal by pressing against the inner surface of the second collar when the valve is in the closed position.

4. The container of claim 3 , wherein the first collar comprises at least one channel disposed on the inner surface, wherein a gap is formed between the at least one second sealing member and the at least one channel, thereby allowing a pressure within the container to equalize with ambient air pressure outside of the container when the valve is in the open position.

5. The container of claim 1 , wherein the second collar includes at least one opening and the valve includes at least one ear projecting from the valve and positioned in the at least one opening, wherein the at least one ear is operable to constrain movement of the valve between the open position and the closed position.

6. The container of claim 1 , wherein the inner surface of the second collar is tapered at the distal end and compresses an upper end of the hollow tubular member to form a hermetic seal between the inner surface and the upper end.

7. The container of claim 1 , wherein the hollow tubular member is connected to the distal end of the second collar via a friction fit.

8. The container of claim 1 , wherein the valve comprises a second lip that extends radially outwardly from the cylindrical surface and is positioned outwardly of the proximal end of the first collar.

9. The container of claim 8 , wherein the second lip has an outer diameter larger than an outer diameter of the first collar.

10. A cap for closing a fluid container, comprising:

a cap body;

a first collar extending outwardly from an exterior surface of the cap body and forming an outer opening in the cap structure at a proximal end of the first collar;

a second collar extending inwardly from an interior surface of the cap body and forming an inner opening at a distal end of the second collar wherein a passage extends between the inner opening of the second collar and the outer opening of the first collar, the second collar having an inner surface, a plurality of lips extending inwardly from the inner surface of the second collar and supporting a plug within the passage and partially blocking the passage, the plurality of lips defining at least one orifice;

a valve disposed within both the first collar and a proximal end of the second collar, the valve comprises a cylindrical surface having a hollow interior extending from a distal end to a proximal end and at least one lower sealing member disposed at the distal end, the proximal end of the valve extending outwardly from the outer opening of the first collar, the at least one lower sealing member operable to be seated on the plug and form a seal between a surface of the at least one lower sealing member and the inner surface of the second collar and between an inner surface of the at least one lower sealing member and an outer surface of the plug when the valve is in a closed position to prevent flow of a fluid through the at least one orifice, the valve is operable to move between the closed position and an open position, wherein the open position permits flow of the fluid through the at least one orifice and exit the container through the outer opening of the first collar; and

an elongate hollow member in fluid communication with the distal end of the second collar and extending away from the distal end of the second collar, the hollow member in fluid communication with the hollow interior of the valve when the valve is in the open position and the hollow member not in fluid communication with the hollow interior of the valve when the valve is in the closed position.

11. The cap of claim 10 , wherein the outer surface of the plug is tapered and is operable to compress the distal end of the valve between the inner surface of the second collar and the outer surface of the plug when the valve is in the closed position.

12. The cap of claim 10 , wherein the valve includes at least one upper sealing member, wherein the at least one upper sealing member and the at least one lower sealing member are operable to form a hermetic seal by pressing against an inner surface of the upper collar and the inner surface of the lower collar, respectively, when the valve is in the closed position.

13. The cap of claim 12 , wherein the upper collar comprises at least one channel disposed on the inner surface, wherein a gap is formed between the upper sealing members and the at least one channel, thereby allowing a pressure within the container to equalize with ambient air pressure outside of the container when the valve is in the open position.

14. The cap of claim 10 , wherein the second collar includes at least one opening and the valve includes at least one ear projecting from the valve and positioned in the at least one opening, wherein the at least one ear is operable to constrain movement of the valve between the open and closed position.

15. The cap of claim 10 , wherein the inner surface of the second collar is tapered at the distal end and compresses an upper end of the hollow tubular member to form a hermetic seal between the inner surface and the upper end.

16. The cap of claim 10 , wherein the elongate hollow member is disposed within the distal end of the second collar via a friction fit.

17. The cap of claim 10 , wherein the valve comprises an annular lip that extends radially outwardly from the cylindrical surface and is positioned outwardly from the outer opening of the first collar.

18. The cap of claim 17 , wherein the lip has an outer diameter larger than an outer diameter of the first collar.

19. A container that is adapted to hold a fluid for dispensing:

a container having an opening;

a cap structure mountable to the container and enclosing the opening, the cap structure having a cap body, a first collar extending outwardly from an exterior surface of the cap body and forming an outer opening in the cap structure at a proximal end of the first collar, a second collar extending inwardly from an interior surface of the cap body and forming an inner opening at a distal end of the second collar and a first fluid passage between the inner opening and the first collar, the second collar having an inner surface and a plug spaced from the inner surface, the plug partially blocking the fluid passage, and a plurality of first lips extending from the plug to the inner surface of the second collar to define at least one orifice;

a valve disposed within both the first collar and a proximal end of the second collar and extending outwardly from the first collar, the valve comprises a cylindrical surface forming a second fluid passage extending from a distal end to a proximal end, a valve opening disposed at the distal end, and at least one first sealing member disposed at the distal end, the at least one first sealing member is operable to be seated on the plug and form a seal between a surface of the at least one first sealing member and the inner surface of the second collar and between an inner surface of the at least one first sealing member and an outer surface of the plug when the valve is in a closed position, wherein the closed position prevents flow of a fluid through the valve opening, the valve is operable to move between the closed position and an open position, wherein the open position permits flow of the fluid through the at least one orifice.

20. The container of claim 19 , further comprising a tubular member connected to the distal end of the second collar and extending away from the distal end of the second collar, the tubular member in fluid communication with the hollow interior of the valve when the valve is in the open position and the tubular member not in fluid communication with the hollow interior of the valve when the valve is in the closed position.