Connect/disconnect coupling for a container

A coupling assembly for removing the contents of a container from an opening in the container, the coupling assembly comprising:

• a container insert coupled to the container opening and including:
• a first open cavity extending through the container insert and including at least first and second contact surfaces;
• and
• a dispense unit including:
• a first dispense member having a second open cavity extending there through and a third contact surface formed on an outer portion thereof, the third contact surface being configured to engage the first contact surface to releasably couple the dispense unit to the container insert;
• a second dispense member having a third open cavity extending there through and a fourth contact surface formed on an outer portion thereof, the second dispense member being at least partially disposed within the second open cavity and being adjustably coupled to the first dispense member;
• and
• a third dispense member having a fifth contact surface on an outer portion thereof and a sixth contact surface on an inner surface thereof, the fifth contact surface being configured to engage the second contact surface, and the sixth contact surface being configured to engage the fourth contact surface in an interference fit connection;
• whereby the interference fit connection provides cooperative movement of the second and third dispense members to ensure engagement between the second and fifth contact surfaces, while providing relative rotational movement between the second and third dispense member during engagement of the first and third contact surfaces.

A coupling assembly for removing contents of a container from an opening in the container, the coupling assembly comprising:

• a container insert configured to be coupled to the opening of the container and having first and second insert ends, the container insert including a first seal positioned adjacent to the first insert end to seal the container insert with respect to the container, and defining a first insert cavity with insert threads, a second insert cavity, a third insert cavity with an insert valve engagement member, and a dip tube engagement surface adjacent to the second insert end for engaging a dip tube that extends into the container, the container insert defining an insert passage extending from the first insert end to the second insert end and through the first, second, and third insert cavities, and the container insert defining an insert vent path extending through the container insert to the first insert cavity;
• and
• a dispense unit including a main dispense body including first and second dispense ends, and a coupling ring with threads positioned to engage the insert threads when coupled thereto and a first dispense seal positioned to seal the container insert with respect to the first insert cavity, a coupling sleeve extending to the first dispense end, a valve assembly positioned axially within the coupling sleeve, the valve assembly including a poppet member with first and second ends, the first end including a valve that seals against a shoulder formed in a first dispense cavity defined by the dispense unit, and a spring member positioned in the first dispense cavity to force the valve into a closed position against the shoulder, and the dispense unit defining a dispense passage through the coupling sleeve and the first dispense cavity to a dispense port, and defining a dispense vent path extending through the coupling sleeve to a vent port;
• wherein, when the dispense unit is coupled to the container insert, the insert vent path mates with the dispense vent path to define a complete and separate vent path extending from within the container to the vent port, and the insert valve engagement member forces the poppet member against the spring member so that the valve unseats with respect to the shoulder to place the insert passage in fluid communication with the first dispense cavity and the dispense port.