Multi-chambered container production process

A molding process for making a multi-chambered container comprising a bottom wall, a neck, and a main body having a sidewall that is connected to the bottom wall and the neck, comprising the steps of:

• heating a parison;
• inflating said heated parison to form the container;
• fashioning first and second pinched-in areas in the sidewall, said first pinched-in area includes first and second wall portions that extend inwardly toward an interior of the main body, and a first end wall portion connecting the first and second wall portions, said second pinched-in area includes third and fourth wall portions that extend inwardly toward an interior of the main body, and a second end wall portion connecting the third and fourth wall portions, said first end wall portion being joined to said second end wall portion so as to define separate chambers with said main body, and wherein said first end wall portion is larger than said second end wall portion, whereby the flexibility of the main body about the joint of said first and second wall portions is minimized;
• and
• cooling the container.

A molding process for making a multi-chambered container comprising a bottom wall, a neck, and a main body having a sidewall that is connected to the bottom wall and the neck, comprising the steps of:

• heating a parison;
• inflating said heated parison to form the container;
• fashioning first and second pinched-in areas in the sidewall, said first pinched-in area includes first and second wall portions that extend inwardly toward an interior of the main body, and a first end wall portion connecting the first and second wall portions, said second pinched-in area includes third and fourth wall portions that extend inwardly toward an interior of the main body, and a second end wall portion connecting the third and fourth wall portions, wherein one of said first and second wall portions of said first pinched-in area is joined to one of said third and fourth wall portions of said second pinched-in area so as to define separate chambers with said main body, whereby the flexibility of the main body about the joint of said first and second wall portions is minimized;
• and
• cooling the container.