Patent ID: 8887938

Claim:
A package assembly for selectively containing and releasing a particulate aliquot, the package assembly comprising: first and second portions which cooperate to contain the aliquot, the first portion defining a pair of opposite sides and having a flexure channel defined in each of the opposite sides, wherein the flexure channels define a flexure axis extending through the flexure channels, and wherein the package assembly is configured such that upon application of an opening force to opposing sides of the second portion, the flexure axis moves away from the second portion and an end of the first portion separates from an end of the second portion, thus releasing the particulate aliquot, wherein the first and second portions define first and second flange portions, respectively, and wherein the package assembly further comprises a notch portion located on one of the first or second flange portions, the notch portion configured to allow a disengaging tool to apply a substantially normal force against the other of the first or second flanges, for encouraging the first and second portions to separate.