Stopper having a sliding plug and comprising multiple distribution holes

A push-pull plugging device to be secured to a container neck intended to contain a liquid, the plugging device comprising:

• (a) a tubular spout defining a reference axis of the device, the spout including an outer tubular guide wall, an inner tubular passage wall delimiting a passage orifice, and an annular connecting wall between the outer tubular guide wall and the inner tubular passage wall;
• and
• (b) a plug that can be pulled relative to the outer tubular guide wall parallel to the reference axis from a plugging position to a distribution position and pushed relative to the outer tubular guide wall parallel to the reference axis from the distribution position to the plugging position, the plug comprising:
• a tubular outer shell enveloping the tubular spout and sliding on the tubular spout;
• and
• a bottom extending perpendicular to the reference axis, the bottom being provided with a sealing skirt and several distribution holes distributed on the periphery of the skirt, the sealing skirt penetrating the inner tubular passage while in the plugging position to plug the passage orifice through annular contact with the inner tubular passage wall, and freeing the passage orifice to form several passageways from the container toward the outside through the passage orifice and the distribution holes when the plug is pulled from the plugging position to the distribution position, the bottom of the plug having radial ribs positioned one between each two of the distribution holes and wherein the ribs form retention walls by adhesion of the liquid located between the bottom of the plug and the annular connecting wall of the tubular spout, wherein the bottom has, in a space not occupied by the ribs and outside the distribution holes, a planar surface facing the spout and perpendicular to the ribs, and wherein the device does not snap into the plugging position;
• and
• wherein the ribs protrude downwardly from the planar surface of the bottom of the plug and extend toward the tubular spout to form a stop where the ribs contact the annular connecting wall of the tubular spout while preserving an annular retention volume between the bottom of the plug and the tubular spout when the plug is in the plugging position, the retention volume communicating with the outside by the distribution holes.

A push-pull plugging device to be secured to a container neck intended to contain a liquid, the plugging device comprising:

• (a) a tubular spout defining a reference axis of the device and delimiting a passage orifice;
• and
• (b) a plug that can be pulled relative to the tubular spout parallel to the reference axis from a plugging position to a distribution position and pushed relative to the tubular spout parallel to the reference axis from the distribution position to the plugging position, the plug comprising:
• a tubular outer shell enveloping the tubular spout and sliding on the tubular spout;
• and
• a bottom extending perpendicular to the reference axis, the bottom being provided with a sealing skirt and several distribution holes distributed on the periphery of the skirt, the sealing skirt cooperating with the tubular spout while in the plugging position to plug the passage orifice and freeing the passage orifice to form several passageways from the container toward the outside through the passage orifice and the distribution holes when the plug is pulled from the plugging opposition to the distribution position, the bottom of the plug having radial ribs positioned one between each two of the distribution holes and wherein the ribs form retention walls by adhesion of the liquid captured between the bottom of the plug and the tubular spout, wherein the bottom has, in a space not occupied by the ribs and outside the distribution holes, a planar surface facing the spout and perpendicular to the ribs, and wherein the tubular spout includes an outer tubular guide wall on which the plug slides between the plugging and distribution positions, an inner tubular passage wall delimiting the passage orifice and which the sealing skirt penetrates to plug the passage orifice by annular contact with the inner tubular passage wall, and an annular connecting wall extending radially from the outer tubular guide wall to the inner tubular passage wall;
• and
• wherein the ribs protrude downwardly from the planar surface of the bottom of the plug and extend toward the tubular spout to form a stop where the ribs contact the annular connecting wall of the tubular spout while preserving an annular retention volume between the bottom of the plug and the tubular spout when the plug is in the plugging position, the retention volume communicating with the outside by the distribution holes.