Multi-component aerosol dispenser for dispensing paste-like cosmetics - includes piston pumps for pumping components to be dispensed out of containers to one or more dispensing openings, with non-return valve in inlet and outlet of piston chambers

摘要

The aerosol has a main container (1) and auxiliary container (2) and main and auxiliary piston pumps (5) and (23). The main piston pump is connected to riser tube (6) and is fitted with non-return valves at the pump inlet and outlets. The auxiliary pump also has two non-return valves. The auxiliary container has a free piston (29) which gives the container a variable volume. The dispenser is actuated by depressing the control part (4). This operates the main and auxiliary pumps and the material in the main and auxiliary containers is discharged simultaneously from main and auxiliary outlets (33) and (34).