Patent ID: 6345629
Filing Date: 2002-02-12
Classification: A46B

Abstract:
Toothbrush having:a hollow handle adapted to be filled with toothpaste, the handle forming a reservoir for the toothpaste and having at a first end an outflow hole for the toothpaste; a brush part with bristles in the vicinity of the first end of the handle, the handle and the brush part having means for fixing them together end-to-end; a piston housed in the reservoir and adapted to expel the toothpaste through the outflow hole, the handle having at a second end means for actuating the piston, the piston having a screwthreaded central hole; a screwthreaded rod cooperating with the screwthreaded central hole of the piston; a stopper and an actuator knob, one end of the screwthreaded rod passes through the stopper at the second end of the reservoir and is fastened to the actuator knob for actuating the piston, the screwthreaded rod and the actuator knob being mobile in rotation and in translation; and means for limiting the axial travel of the piston, said means being disposed between the piston and the stopper and fastened axially to the rod.