초록 ▼

A container (1) having an open-ended and externally screw threaded cylindrical neck (4) is fitted with a closure cap (2) having an internal screw thread (10) adapted to cooperate with the thread (7) on the container neck and a planar end wall (8) adapted to form a seal with the open end (6) of the c

A container (1) having an open-ended and externally screw threaded cylindrical neck (4) is fitted with a closure cap (2) having an internal screw thread (10) adapted to cooperate with the thread (7) on the container neck and a planar end wall (8) adapted to form a seal with the open end (6) of the container neck. At least one of the opposing surfaces of the screw threads on the cap and the container neck is sufficiently inclined to the plane perpendicular to the axis of the neck of the container at an angle of at least 60.degree. so that the screw threads can slip laterally on one another to enable the side wall of the cap or the neck of the container to deform when the cap is tightened onto the container to form a seal.

대표청구항 ▼

1. A container and closure cap, comprising:a container having a neck, said neck including an open end and an external screw thread; a closure cap having a planar end wall and a downwardly extending cylindrical side wall with an internal screw thread extending inwardly and downwardly therefrom, said

1. A container and closure cap, comprising:a container having a neck, said neck including an open end and an external screw thread; a closure cap having a planar end wall and a downwardly extending cylindrical side wall with an internal screw thread extending inwardly and downwardly therefrom, said internal screw thread having at least one upper surface opposing at least one lower surface of said external screw thread; and, at least one of said upper surface of said internal screw thread and said opposing lower surface of said external screw tread being inclined at an angle, said angle being at least 60.degree. relative to a plane perpendicular to the longitudinal of said neck of said container.