Abstract: An apparatus for personal hygiene, in particular for oral hygiene which includes a reservoir removably fitted on a casing for containing a liquid supply, and, furthermore, structure is provided for receiving a dispenser of a hygienic, cosmetic or therapeutic product, in particular a dentifrice solution, for addition to the liquid in the reservoir. For facilitating bucco-dental hygiene, the apparatus also includes a hydraulic pump within the casing connected by a flexible tubing to a handpiece having any particular type of spray head. The reservoir is adapted to supply liquid to the pump and, at the same time, is designed to receive the dentifrice solution from the dispenser. The dispenser structure can be independently formed and mounted on the apparatus casing or can be incorporated into the reservoir structure. The apparatus is also designed to serve as a cleaning device for dentures, and in this connection, the dispenser would contain a cleaning fluid for dispensing into the reservoir.

Abstract: A hand-operated appliance for body care by means of an intermittent liquid jet, in particular for massaging the gums and for cleaning the teeth, has a liquid pump which comprises a working chamber connected to an outlet fitted with a spray nozzle, a piston reciprocated therein by an electric motor, an inlet chamber connected to an inlet pipe fed from a liquid reservoir, and an inlet valve located in the connecting aperture between the inlet chamber and working chamber. The inlet valve is biased towards the open position by a spring the force of which is less than the pressure exerted during the working stroke of the piston and tending to close the valve. The liquid reservoir is connected by the inlet chamber of the pump to an ascending pipe acting as an air-vent pipe which is arranged vertically, is open at the top and is branched from the inlet chamber.