A spray dispensing closure includes a spray plug and a cap cooperating therewith to selectively occlude passages in the spray plug. In one embodiment, a spray plug includes a set of inner passages for conveying product from a dip tube through the spray plug and a set of outer passages for conveying air from a head space in the container. The inner passages communicate with an inner flow space and the outer passages communicate with an outer flow space. A cap cooperates with the spray plug to define an outer chamber and an inner chamber which are isolated from one another when the cap is in the closed position, thereby preventing the mixing of air and product. As the cap is moved to the open position, the cap chambers are permitted to communicate with one another and, as the container is squeezed, a product/air mixture is formed in the closure. A central spray plug post has an upper portion that forms at least one restrictive passage with an inner wall of the cap when the cap is in the open position. As the air/product mixture flows through the restrictive passages, a spray mist is formed and dispensed through at least one dispensing orifice formed in the cap and communicating with the restrictive passages. In an alternative embodiment, only a single set of inner passages are provided on the spray plug and communicate with the head space in the container. A series of dip tube exit passages are formed by a proximal end of the dip tube and a plurality of dip tube end engaging ribs extending from the spray plug. When the container is squeezed and the cap is open, product is conveyed from the dip tube and into the inner passages to be mixed with air from the head space.

The invention relates to a flexible spray bottle (10) for nasal spray, onto the bottle neck (14) of which a spray cap (12) is placed. The top wall (17) of the spray cap (12) contains a spray opening (20) and, on the underside, a connection piece (18) for a dip tube (21). A mixing-air passage (30, 31) extends between the connection piece (18) and the dip tube (21), with the result that a liquid/air mixture leaves the spray opening (20). An annular flange (15) of the spray cap (12) contains an air-admitting passage (23) which extends radially in the flange and is angled inside the spray cap towards the interior of the bottle (10). The angled part contains an air-admitting valve with a valve body (28) which is pressed against a valve seat (27) in the case of positive pressure in the container and seals off the air-admitting passage (23). In the open position of the air-admitting valve, the valve body (28) rests on supporting arms (29) which make possible the passage of air through the air-admitting passage (23). The spray bottle prevents bodily secretions from being sucked up after the introduction of the medicoment into the nasal passage and while retaining customary design features makes possible economical production (FIG. 1).

A container having a threaded tubular neck out through which a contained liquid can be poured is provided with a screwed on outlet funnel. The outlet funnel houses a liquid-buoyant, invertible stopper, which is heavier towards an end provided with a sealing-preventing feature, than towards a diametrically opposite end provided with a sealing-providing feature. The container itself may be of conventional construction. The funnel possibly telescopes for selectively locking the stopper in place in either an orientation in which it seals to prevent liquid from entering the funnel from the container, or to prevent liquid from pouring from the funnel.

Spraying device for a deformable container, with a closing cap with a support to which a dip tube is fastened. The liquid coming from the dip tube upon squeezing the container is mixed with the air from the container and the mixture is led through an opening situated in the cap. The opening laterally connects to a bore which is open at one end for discharge of the mixture to the outside. An air duct ends in the bottom of the bore, situated opposite the open end, with the axis of the air duct running parallel to that of the bore. The air duct is connected to a space which is normally situated above the highest liquid level.

A slide dispensing cap and dispensing stopper for a dispensing bottle which includes a one-way valve between the interior of the bottle and the cap so that air cannot enter into the bottle when product is dispensed through a tube because the valve closes to prevent product from passing through the one-way valve. A tube communicates with the stopper and in a dispensing position of the slide nozzle so that product can pass out through the nozzle. After dispensing the bottle is released and air can enter the bottle through the one-way valve.