Patent ID: 6695161
Filing Date: 2004-02-24
Classification: B65D,Y10S

Abstract:
A plastic container closure for a container having an annular top surface extending substantially horizontally, a cylindrical outer peripheral surface extending substantially vertically, and an annular boundary surface extending from the top surface to the outer peripheral surface substantially arcuately in a sectional view, the top surface, the outer peripheral surface, and the boundary surface being formed in an upper end part of a mouth-and-neck portion of the container, said container closure comprising:a circular top panel wall; and a cylindrical skirt wall extending downwardly from a peripheral edge of said top panel wall, wherein: said circular top panel wall includes an annular seal piece and an annular contact piece said annular seal piece being integrally formed at an outer peripheral edge portion of an inner surface of said top panel wall, extending downwardly obliquely in a radially inward direction from said outer peripheral edge portion, and being adapted to be brought into intimate contact with the outer peripheral surface of the mouth-and-neck portion of the container to deflect the annular seal piece radially outwardly, said annular contact piece being integrally formed at said outer peripheral edge portion of said inner surface of said top panel wall, radially inwardly of said annular seal piece and being adapted to be brought into contact with the boundary surface of the mouth-and-neck portion of the container so as to prevent the annular top surface of the container from contacting said container closure.