Abstract: The present invention generally provides a bottom seal for a container. The container has a side wall having an upper end and a lower end. A bottom wall closes the lower end of the side wall. The bottom wall has a base and a skirt projecting from an outer periphery of the base. A bottom seal made of a portion of the lower end of the side wall being folded generally radially inward and back on itself forms a first seal region and an adjacent second seal region. The first seal region includes the skirt and the lower end of the side wall. The second seal region does not include the skirt. One or more concentric ring seals, knurling patterns, or both are formed in at least one of the first and second seal regions of the bottom seal.

Abstract: A computer controlled cup forming machine is provided. The computer controlled cup forming machine has a main motor, a main controller, and a plurality of workstations having individual motors electrically connected to the main motor and the main controller. The main controller develops electrical signals of a drive or motion profile that are sent to the individual motors, and the main motor sends additional electrical signals to the individual motors to initiate the drive profiles at the individual motors. The main controller also has an input station to quantitatively control each of the individual motors.