A conditioning assembly for conditioning an article (D), such as a fluid dispenser, under vacuum, the assembly including an airtight enclosure (E) for receiving an article (D) for conditioning under a vacuum; the assembly being characterized in that the enclosure (E) includes a conditioning element
A conditioning assembly for conditioning an article (D), such as a fluid dispenser, under vacuum, the assembly including an airtight enclosure (E) for receiving an article (D) for conditioning under a vacuum; the assembly being characterized in that the enclosure (E) includes a conditioning element (21) that is movable inside the enclosure, the enclosure (E) being connected to a suction chamber (C) that includes a piston (22) that is capable of causing the volume of the chamber (C) to vary, the conditioning element (21) and the piston (22) being constrained to move together in a manner such that a movement of the piston (22) in the direction for increasing the volume of the chamber (C) causes suction to be generated in the enclosure (E).
대표청구항▼
1. A conditioning assembly for conditioning an article under vacuum, the assembly including an airtight enclosure for receiving an article for conditioning under a vacuum; the assembly being characterized in that the enclosure includes a conditioning element that is movable inside the enclosure, the
1. A conditioning assembly for conditioning an article under vacuum, the assembly including an airtight enclosure for receiving an article for conditioning under a vacuum; the assembly being characterized in that the enclosure includes a conditioning element that is movable inside the enclosure, the enclosure being connected to a suction chamber that includes a piston that is capable of causing the volume of the chamber to vary, the conditioning element and the piston being constrained to move together in a manner such that a movement of the piston in the direction for increasing the volume of the chamber causes suction to be generated in the enclosure. 2. A conditioning assembly according to claim 1, wherein the piston and the conditioning element are both urged by resilient return means into a rest position, in which the suction chamber presents a minimum volume, advantageously zero, and the enclosure presents a maximum volume. 3. A conditioning assembly according to claim 1, wherein the conditioning element is capable of generating a variation in the volume of the enclosure, the volume of the suction chamber sized relative to the volume of the enclosure such that movement of the piston in the direction for increasing the volume of the chamber results in the increase in the volume of the chamber by an amount that is greater than the decrease in the volume of the enclosure, thereby generating suction in both the chamber and in the enclosure. 4. A conditioning assembly according to claim 1, wherein the enclosure comprises a bottom portion in which the article is placed, and a top portion that is capable of coming into sealing contact with the bottom portion so as to form the enclosure, the bottom and top portions being movable relative to each other along an axis, the conditioning element being situated in the top portion in such a manner as to move along the axis, the piston being slidably mounted in the suction chamber to slide along the axis. 5. A conditioning assembly according to claim 4, wherein the suction chamber is defined by a sleeve, and the piston, the sleeve, and the top portion of the enclosure co-operate with one another to form a base body. 6. A conditioning assembly according to claim 1, wherein the piston and the conditioning element are connected together as a single piece, and they include a common actuator member for moving them together along an axis, against a resilient return means. 7. A conditioning assembly according to claim 6, including a movable unit that is movable downwards and upwards in a base body, against the resilient return means, the movable unit forming the conditioning element, the piston, and the common actuator member. 8. A conditioning assembly according to claim 1, wherein the piston moves over a determined suction stroke, and the conditioning element moves over a determined conditioning stroke, the piston and the conditioning element being secured to each other merely over a limited stroke that corresponds to the conditioning stroke. 9. A conditioning assembly according to claim 1, wherein the conditioning element constitutes a press element that is adapted to exert axial pressure on the article, once the enclosure is under suction. 10. A conditioning assembly according to claim 1, wherein the chamber defines a slide cylinder for the piston, the cylinder presenting a diameter that is greater than the diameter of the enclosure at the conditioning element. 11. A conditioning assembly according to claim 1, wherein the chamber defines a slide cylinder for the piston, the cylinder including a vent hole, the piston reaching the vent hole at the end of its stroke so as to return the chamber and the enclosure to atmospheric pressure. 12. A conditioning assembly according to claim 11, wherein the article comprises a head to be mounted on a reservoir, a differential-stroke device enabling the piston to continue its stroke as far as the vent hole, while the head is already in its final mounted position on the reservoir. 13. A conditioning assembly according to claim 1, wherein the enclosure is connected to the suction chamber via a duct. 14. The conditioning assembly according to claim 1, wherein the article is a fluid dispenser.
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이 특허에 인용된 특허 (4)
Sanfilippo John E. (P.O. Box 952 Barrington IL 60011) Sanfilippo James J. (505 N. Lake Shore Dr. ; #6806 Chicago IL 60611), Apparatus and method for removing oxygen from food containers.
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