Mixer for double dispensing cartridges or dispensing appliances

A mixer for a dispensing appliance having components dispensed side by side, comprising:

• a tubular, elongated mixer housing adapted to be attached to a dispensing appliance;
• a mixer element group arranged in said mixer housing and having an inlet portion with side by side inlets adapted to communicate with two contiguous dispensing openings of a dispensing appliance;
• the inlet portion of the mixer element group being divided into a larger inlet chamber for a first component having a greater dispensing volume and a smaller inlet chamber for a second component having a smaller dispensing volume;
• and
• the smaller inlet chamber comprising a channel angled with respect to a central longitudinal axis of said mixer element group, said channel having an inlet for receiving the second component from the dispensing appliance and an outlet for introducing the second component into a mixing helix of said mixer element group, said inlet being offset from said central longitudinal axis and said outlet being generally concentric with said central longitudinal axis;
• said mixing helix having a first helix with a first inlet edge, said first inlet edge being arranged to cut both the first and second components in half as said first and second components exit said inlet chambers, said outlet of said channel being arranged such that the first component envelops the second component as said components reach the first inlet edge of said first helix.

In combination, a dispensing appliance having two components dispensed side by side and a mixer for mixing the dispensed components, comprising:

• a dispensing appliance having a generally cylindrical outlet with two side by side dispensing openings;
• a tubular, elongated mixer housing attached to said outlet of said dispensing appliance in fluid communication with said dispensing openings;
• and
• a mixer element group arranged in said mixer housing and having an inlet portion with side by side inlets positioned in fluid communication with said dispensing openings of said dispensing appliance;
• the inlet portion of the mixer element group being divided into a larger inlet chamber for a first component having a greater dispensing volume and a smaller inlet chamber for a second component having a smaller dispensing volume, the smaller inlet chamber comprising a channel angled with respect to a central longitudinal axis of said mixer element group, said channel having an inlet for receiving the second component from the dispensing appliance and an outlet for introducing the second component into a mixing helix of said mixer element group, said inlet of said channel being offset from said central longitudinal axis and said outlet of said channel being generally concentric with said central longitudinal axis;
• said mixing helix having a first helix with a first inlet edge, said first inlet edge being arranged to cut both the first and second components in half as said first and second components exit said inlet chambers, said outlet of said channel being arranged such that the first component envelops the second component as said components reach the first inlet edge of said first helix.