Plural chamber dispenser

A plural chamber dispenser, comprising:

• a body having side wall means defining at least two side-by-side generally cylindrical chambers for containing a fluid product, each chamber having one end wall with a dispenser spout extending therethrough;
• an operator assembly fitted on the opposite end of the body,
• the operator assembly uniting:
• a cap;
• a rotatable operator outside the cap, a helically threaded rod for each chamber, an internally threaded piston mounted on each rod for longitudinal travel therealong upon rotation of the rod;
• a gear plate;
• a set of meshing gears received on said gear plate and rotatively connecting the operator through the cap, with the rods, so that as the operator is rotated, the pistons are advanced;
• and means on the cap and body securing the operator assembly on the body with the rods depending in the respective chambers;
• the operator assembly being a prefabricated unit, wherein:
• the rods each have a threaded main section flanked at the upper end by a smaller diameter unthreaded section and terminating at the upper end in a non-circular peg;
• the pistons being initially borne upon said unthreaded sections and the gear plate being provided with a plurality of openings, into which said pegs upwardly protrude;
• a three lobe recess formed in the upper side of the gear plate;
• the gears comprising at least three gears deposited, one each, in the recess lobes;
• each gear having a non-circular opening formed centrally therethrough;
• the operator including a handwheel having a shaft extending coaxially therefrom, said shaft having a portion of non-circular section, said shaft portion being inserted in the non-circular opening of one of said gears to key the operation to that gear;
• said pegs of said rods being received in the respective non-circular openings of the remainder of said gears to key the rods to those gears.