Patent ID: 8544685

Claim:
A reclosable dispensing closure for a vessel containing fluid comprising a base member engageable with the vessel and a spout member engaged with the base member, the base member and spout member comprised of plastic, one of the base member and the spout member including a rupture member having a camming surface and the other of the base member and the spout member having a cam actuator for engaging the camming surface to rupture the rupture member during twisting of the spout member in a first direction relative to the base member from a sealed position to a flow position to define a flow opening in said one of the base member and the spout member and to permit fluid flow through the flow opening; wherein said one of the base member and the spout member have another rupture member having another camming surface and said other of the base member and the spout have another cam actuator for engaging the other camming surface to rupture the other rupture member during twisting of the spout member in the first direction relative to the base member from the sealed position to the flow position to define another flow opening in the spout member and to permit fluid flow through said another flow opening; wherein each cam actuator defines a channel to increase fluid flow through the flow openings when the spout member is twisted to the flow position.