Patent ID: 8245888

Claim:
A barrier piston for an aerosol container, comprising: a piston body including a base and flow channels disposed thereon, the piston body formed of a first material with a first durometer, the flow channels including first and second channels disposed perpendicularly from each other; a seal formed of a second material with a second durometer radially disposed on the base of the piston body and being adapted to separate propellant from product when the barrier piston is positioned within the aerosol container; stabilizers formed of the second material disposed in the flow channels, the stabilizers and seal being overmolded onto the piston body as a unitary body, the stabilizers each including a longitudinally oriented extension, each extension being non-circumferential and discreet from one another, each extension having an outer diameter that is longitudinally flush with an outer diameter of the seal and sized to abut an inner surface of the aerosol container.