Refillable dispenser including a translatable plunger
First Claim
1. A dispenser of a product (3) contained in a cylindrical reservoir (1) in which said product (3) is disposed between the dispensing opening (1d) and a plunger (4) displaceable in translation in the reservoir (1), the plunger (4) being mounted at the end of a threaded rod (5) which cooperates with a fixed nut (9) supported by a support (7) integrally joined with the reservoir (1), the threaded rod (5) being displaceable in rotation incrementally by means of a mechanism also supported by said support (7), this movement being initiated by the action of the user upon a displaceable maneuvering device (8) supported by the support (7), in order to obtain the translation of the plunger (4) and the dispensing of the product (3)the said dispenser comprising two sub-assemblies, the first sub-assembly including the mechanism, the threaded rod (5), the nut (9), the maneuvering device (8), the support (7) and the plunger (4), the second sub-assembly being the reservoir (1), andthe first sub-assembly being joined in a removable manner to the second sub-assembly by connecting means (6);
- the nut (9) that cooperates with the threaded rod (5) is slit along at least one diametrical plane over the entire length of its threaded hole (11), the sectors of the nut being held together by a flexible zone (14) which assures the fixation of the nut (9) on the support (7);
the reservoir (1) includes a frustoconical surface (1c), which comes to be pressed against a corresponding frustoconical surface (2c) of the nut (9), when the movable reservoir (1) is joined with the support (7) to assure the pinching of the sectors of the nut about the threaded rod (5) driven by the mechanism.
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Accused Products
Abstract
The invention relates to a dispenser of a compact product (3) contained in a cylindrical reservoir (1); the product (3) is ejected via a plunger (4) that is displaceable in translation in the reservoir and is mounted at the end of a threaded rod (5), which cooperates with a nut (9). The rod (5) is driven in rotation incrementally via a pushbutton (8). The support (7) of the mechanism and of the nut (9) is movable with respect to the reservoir (1) by means of a thread. The nut (9) which cooperates with the rod (5) is slit along a diametrical plane, to allow the re-pressing of the rod when the half-nuts are capable of spreading apart. The reservoir includes a frustoconical surface 1c, which assures the pinching of the half-screws when the mechanism is put into place at the base of the full reservoir.
47 Citations
11 Claims
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1. A dispenser of a product (3) contained in a cylindrical reservoir (1) in which said product (3) is disposed between the dispensing opening (1d) and a plunger (4) displaceable in translation in the reservoir (1), the plunger (4) being mounted at the end of a threaded rod (5) which cooperates with a fixed nut (9) supported by a support (7) integrally joined with the reservoir (1), the threaded rod (5) being displaceable in rotation incrementally by means of a mechanism also supported by said support (7), this movement being initiated by the action of the user upon a displaceable maneuvering device (8) supported by the support (7), in order to obtain the translation of the plunger (4) and the dispensing of the product (3)
the said dispenser comprising two sub-assemblies, the first sub-assembly including the mechanism, the threaded rod (5), the nut (9), the maneuvering device (8), the support (7) and the plunger (4), the second sub-assembly being the reservoir (1), and the first sub-assembly being joined in a removable manner to the second sub-assembly by connecting means (6); -
the nut (9) that cooperates with the threaded rod (5) is slit along at least one diametrical plane over the entire length of its threaded hole (11), the sectors of the nut being held together by a flexible zone (14) which assures the fixation of the nut (9) on the support (7); the reservoir (1) includes a frustoconical surface (1c), which comes to be pressed against a corresponding frustoconical surface (2c) of the nut (9), when the movable reservoir (1) is joined with the support (7) to assure the pinching of the sectors of the nut about the threaded rod (5) driven by the mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification