CPC B65D 41/17 (2013.01) [B65D 41/0471 (2013.01); B65D 41/34 (2013.01); B65D 47/08 (2013.01); B65D 47/0838 (2013.01); B65D 41/16 (2013.01)] | 13 Claims |
1. A closure comprising
a. an upper wall defining an opening;
b. a cylindrical snap-on pipe depending from the upper wall and extending axially to a bottom end,
c. the cylindrical snap-on pipe including at least one resistance recess at the bottom end thereof;
d. the cylindrical snap-on pipe further including at least one thread on a wall thereof;
e. the cylindrical snap-on pipe defining opposing first and second walls of the resistance recess;
f. and
the bottom end of the cylindrical snap-on pipe being shaped to include a guidance recess for lowering the cylindrical snap-on pipe thread relative to a container neck, the closure being configured such that the guidance recess includes a first guidance recess wall with an upward gradient and a second guidance recess wall having a downward gradient whereby in a closure opening direction of rotation the first guidance recess wall permits the cylindrical snap-on pipe axially to be lowered toward the container neck having a forcing element and the second wall being consistent with the closure cylindrical snap-on pipe being raised relative to the container and the thread maintains its axial position relative to a thread on a bottle neck to which the closure is being applied when the forcing element contacts a resistance recess wall at least until the forcing element reaches a position beneath the second guidance recess wall.
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