Patent ID: 6036057
Filing Date: 2000-03-14
Classification: B05B,E03C

Abstract:
A proportioning system comprising:a first cylinder and piston arrangement;a second cylinder and piston arrangement;a dispensing head;said first cylinder and piston arrangement including an inlet port adapted to be connected to a first reservoir containing a dilution fluid and an outlet port connected to the dispensing head;said second cylinder and piston arrangement including an inlet port adapted to be connected to a second reservoir containing a concentrated fluid and an outlet port connected to the dispensing head;said dispensing head adapted for mixing the dilution fluid from the first reservoir with the concentrated fluid from the second reservoir;a device that connects the first cylinder and piston arrangement to the second cylinder and piston arrangement to ensure that if the dilution fluid is depleted that the concentrated fluid is not dispensed from said proportioning system;said device further allowing the dilution fluid to be drawn into the first cylinder and piston arrangement and said concentrated fluid to be drawn into said second cylinder and piston arrangement without the dilution fluid and the concentrated fluid being mixed.