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US 5,992,705 AGranted
Device for the translational driving of a piston for the distribution of pasty products
AssigneeLvmh Recherche
InventorFran.cedilla.ois Lhuisset
Life of this patent
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AssigneeLvmh Recherche
InventorFran.cedilla.ois Lhuisset
Estimating the term…
The present invention relates to a relative translational driving of a piston-forming part into a body, as well as the application of the device to an applicator apparatus. The device includes blades (5) of which the cutting edge is inclined with respect to the longitudinal axis X-X' of the piston-forming part (4) or of the body (2), the blades being integral with the external wall (4a) of the piston-forming part (4) so as to bite on the internal wall (2a) of the body (2) so that the rotation of the piston-forming part (4) with respect to the body (2), or vice versa, causes the displacement of the part into the body (2). This device applies for example to the fabrication of an applicator used to apply a viscous fluid such as nail varnish, or a solid gel such as a deodorant gel.
A device for translationally driving a piston in a body, the piston having an external wall and the body having an internal wall, comprising at least one blade juxtaposed between the piston and the body, the blade having a cutting edge that is inclined with respect to a longitudinal axis and is operatively associated with one of the external wall of the piston or the internal wall of the body to cause relative displacement between the piston and the body.
Dependencies are inferred from the claim text.