Applicator Device for Applying a Cosmetic and the Use of Such a Device

Abstract

An applicator device for applying a cosmetic, the applicator device comprising a reservoir adapted to contain cosmetic in fluid form, an applicator having a cap that closes the reservoir and that is secured to a rod carrying an applicator head, a heater device adapted to heat the applicator head and controlled by a control circuits and a sensor adapted to detect the reservoir being opened by the cap being removed, the control circuit being connected to said sensor and being adapted to cause the heater device to operate only when said sensor detects such opening.

1 . An applicator device for applying a cosmetic, the applicator device comprising:
 a reservoir adapted to contain cosmetic in fluid form;   an applicator having a cap that is adapted to close the reservoir and that is secured to a rod adapted to penetrate into said reservoir when the cap closes said reservoir, said rod carrying an applicator head adapted to apply the cosmetic to a portion of the body of a user; and   a heater device adapted to heat the applicator head and controlled by a control circuit;   said applicator device being provided with at least one sensor adapted to detect the reservoir being opened by the cap being removed, the control circuit being connected to said sensor and being adapted to cause the heater device to operate only when said sensor detects such opening.   
   
   
       2 . An applicator device according to  claim 1 , in which the control circuit is adapted to cause the heater device to operate for a predetermined time each time the reservoir is opened. 
   
   
       3 . An applicator device according to  claim 2 , in which said predetermined time lies in the range 30 seconds to 2 minutes. 
   
   
       4 . An applicator device according to  claim 1 , in which the sensor comprises a contactor carried by the applicator and disposed such that the reservoir presses on said contactor when the cap closes the reservoir. 
   
   
       5 . An applicator device according to  claim 1 , in which the heater device is adapted to heat the applicator head to a temperature lying in the range 35° C. to 80° C. 
   
   
       6 . An applicator device according to  claim 1 , in which the heater device comprises at least one resistive heater element. 
   
   
       7 . An applicator device according to  claim 1 , in which the applicator head is provided with at least one row of teeth aligned in an alignment direction that is substantially parallel to the rod, and the reservoir is provided with a wiper gasket adapted to cause the cosmetic to penetrate between said teeth. 
   
   
       8 . An applicator device according to  claim 7 , in which the applicator head is provided with two rows of teeth disposed at 180° relative to each other, and the reservoir is provided with a neck provided with a wiper gasket which has a central opening receiving the rod and two slots disposed at 180° relative to each other and opening out in said central opening, said slots being adapted to receive the two rows of teeth while the applicator head is passing through the wiper gasket. 
   
   
       9 . An applicator device according to  claim 8 , in which each slot has an enlarged end remote from the central opening. 
   
   
       10 . An applicator device according to  claim 1 , in which the applicator device has a fluid cosmetic disposed in the reservoir. 
   
   
       11 . An applicator device according to  claim 8 , in which the cosmetic is mascara. 
   
   
       12 . The use of an applicator device according to  claim 1 , for applying a cosmetic. 
   
   
       13 . The use according to  claim 12 , in which the cosmetic is mascara.