Patent ID: 8490786

Claim:
A dispensing closure to supply a dose comprising: a housing; wherein the housing comprises a tube, a septum, a dose chamber, a convex dome, an end plate seal, and a septum end attachment, wherein the dome and septum are attached; wherein the dome is inverted by pressing downwardly onto the dome and requiring no twisting motion, wherein the dome is configured with a plurality of radial hinge members which allow the dome to flex to a maximum inverted position, wherein the dome when inverted to a concave configuration causes the septum to apply a pressing force against the end plate seal, wherein the septum end attachment is attached to the distal end of the septum and applies uneven pressure on the end plate seal to reduce the force required to fracture or open the end plate seal, resulting in fracturing or opening of the end plate seal and release of the dose from the dose chamber, wherein the inverted dome remains in a concave configuration.