Patent ID: 6039216
Filing Date: 2000-03-21
Classification: B65D,Y02W

Abstract:
A multichamber pump dispenser comprising a upper portion and a base portion, said upper portion comprising an upper shroud and a cartridge having a plurality of chambers, each chamber having an upper end and a lower end, the upper end of each chamber connected by a delivery channel to an exit nozzle and another end of each said chambers closed by a piston adapted for slideable movement within each of said chambers, said upper shroud at least partially surrounding said plurality of chambers and having a plurality of transverse projections thereon, a lower portion comprising a base and a plurality of upwardly projecting rams, each of said rams arranged for contact with one of said pistons, and a lower shroud surrounding said rams, said lower shroud having a plurality of longitudinal ribs on an inner surface thereof adapted to contact said plurality of transverse projections when said upper shroud is interfitted into said lower shroud.