초록 ▼

A plastic bottle comprises a base having a chime, a dome and an annular wall extending between the chime and the dome. The annular wall extends generally parallel to a longitudinal axis of the bottle to support the dome against inverting due to internal pressure and increases the bi-axial stretching

A plastic bottle comprises a base having a chime, a dome and an annular wall extending between the chime and the dome. The annular wall extends generally parallel to a longitudinal axis of the bottle to support the dome against inverting due to internal pressure and increases the bi-axial stretching of the base during blow molding to strengthen the material of the same. A method of making the plastic bottle of the present invention is also disclosed.

대표청구항 ▼

[ I claim:] [1.] A plastic bottle having a base comprising:an outer wall oriented substantially parallel to a longitudinal axis defined by said bottle;a chime extending from said outer wall;a dome; anda wall extending from adjacent to said chime at a wall first end to a wall second end adjacent to s

[ I claim:] [1.] A plastic bottle having a base comprising:an outer wall oriented substantially parallel to a longitudinal axis defined by said bottle;a chime extending from said outer wall;a dome; anda wall extending from adjacent to said chime at a wall first end to a wall second end adjacent to said dome;said dome extending generally inward of said base from said wall second end;said dome extending from said wall second end terminates at a bottle central portion closing the base; andwherein said wall is substantially straight and forms an angle of approximately six degrees with said longitudinal axis.