Hair treatment fluid application device

Abstract

A hair treatment fluid application device includes a flexible container for containing a hair treatment fluid, an applicator body having outlet orifices for applying the hair treatment fluid to hair, the flexible container having a passage opening for allowing egress of the hair treatment fluid from the flexible container to the applicator body, a housing for accommodating the flexible container, a piston for exerting pressure on the flexible container for forcing the hair treatment fluid from the flexible container through the passage opening to the applicator body by deforming the flexible container, and a driver for driving the piston.

1 . A hair treatment fluid application device comprising:
 an applicator body having outlet orifices for applying said hair treatment fluid to hair;   a flexible container for containing said hair treatment fluid, said flexible container having a passage opening for allowing egress of said hair treatment fluid from said flexible container to said applicator body;   a housing for accommodating said flexible container;   pressure means for exerting pressure on said flexible container for forcing said hair treatment fluid from said flexible container through said passage opening to said applicator body by deforming said flexible container,   wherein said pressure means comprise moving means for moving a pressure body in a direction of movement against said flexible container, and   wherein said pressure body is a roller element rotatable about an axis which extends perpendicularly to said direction of movement; and   driving means for driving said pressure means.   
   
   
       2 . A device as claimed in  claim 1 , wherein said pressure means are located within said housing. 
   
   
       3 . A device as claimed in  claim 1 , wherein said passage opening is embodied by a one-way valve member. 
   
   
       4 . A device as claimed in  claim 1 , wherein said housing is provided with a one-way valve member for hair treatment fluid which has issued through said passage opening to the exterior. 
   
   
       5 - 10 . (canceled) 
   
   
       11 . A device as claimed in  claim 1 , wherein said roller element squeezes said flexible container against an inner surface of the housing during operation. 
   
   
       12 . A device as claimed in  claim 1 , wherein reset means are provided for returning the pressure body to an initial position.