A unitary, self-contained fluid spray dispenser comprising an elongated tubular expandable unit of elastomeric material of selected diameter and length, attached at its open end to a valve support plate by way of a plastic neck piece carried by the open end of the unit. The expandable unit is filled...http://www.google.fr/patents/US4324350?utm_source=gb-gplus-shareBrevet US4324350 - Elastomeric apparatus for pressure dispensing of fluid
Elastomeric apparatus for pressure dispensing of fluid
