Dispenser

摘要

A dispenser includes a hollow containment body with a hole located inside the bottle and an orifice for pumping a liquid product contained inside the bottle. The dispenser also includes a ring nut, a piston, and a hollow stem slidable inside the body and associated with a dispensing spout to actuate the piston in order to dispense fluid contained in the bottle. The body further includes an aperture to selectively place an ambient air inlet passage in fluid communication with the hole in the body. The ring nut has a first substantially cylindrical portion and a second substantially cylindrical portion which are mutually coupled to define the air inlet passage between them.

主权项

1. A dispenser comprising:
a containment body (2) which is hollow and at least partly insertable into a bottle, the containment body (2) having a hole (19) located inside the bottle and an orifice (5) for pumping a liquid product contained inside the bottle; a ring nut (14) able to be engaged on a neck of the bottle and externally associated with the containment body (2); a piston (7) slidable inside the containment body (2) between a raised position and a lowered position; a hollow stem (8) slidable inside the containment body (2) and associated with a dispensing spout (9) to actuate the piston (7) in order to dispense the fluid contained in the bottle; at least one aperture (18) formed in the containment body (2) to selectively place in fluid communication an ambient air inlet passage with the hole (19) in the containment body (2), wherein the ring nut (14) has a first substantially cylindrical portion (14a) and a second substantially cylindrical portion (14b) which are mutually coupled to define the air inlet passage between the first substantially cylindrical portion (14a) and the second substantially cylindrical portion (14b); and a stop ring (11) locked in the containment body (2) and inside which the stem (8) slides; the at least one aperture (18) being at least partly formed between the stop ring (11) and the stem (8).