Abstract: Aerosol-free spray devices are provided. According to some embodiments, a spray device includes a piston operable within a piston chamber and coupled to a vacuum plunger operable within a vacuum chamber. A charger is operable to move the piston and the vacuum plunger in a first direction to generate a vacuum in the piston chamber and the vacuum chamber, thereby drawing liquid into the piston chamber. The vacuum in the vacuum chamber acts on the piston to pressurize the liquid in the piston chamber. A spray actuator is operable to open a spray valve, thereby causing the vacuum in the vacuum chamber to force the plunger and the piston to move opposite the first direction, and forcing the liquid in the piston chamber through a spray nozzle as a liquid spray. According to other embodiments, a spring replaces the vacuum chamber and vacuum plunger.

Abstract: A dry powder inhalation system suitable for transpulmonary administration characterized by using a combination of: (1) A vessel housing a freeze-dried composition that contains a single dose of an active ingredient, and has: (i) a non-powder cake-like form, (ii) a disintegration index of 0.015 or more, and (iii) a property of becoming fine particles having a mean particle diameter of 10 microns or less or a fine particle fraction of 10% or more upon receipt of an air impact having an air speed of at least 1 m/sec and an air flow rate of at least 17 ml/sec; and (2) A device capable of applying said air impact to the freeze-dried composition in said vessel and for discharging the powder-form freeze-dried composition that has been made into fine particles.

Abstract: The invention is an extendible liquid-applying spray arm for use with a liquid source, such as an electrical sprayer. It includes one handle and at least two tubular members which are telescopingly engaged with and slideable along one another. Sliding the tubular members extends/retracts the spray arm respectively for treating/storage or to meet particular work needs which require that said extendible spray arm has a short length. When the spray arm is collapsed, the telescopic members are at least partially arranged within the handle, so that the global length of the spray arm is less than the additional lengths of the handle and the telescopic portion. The spray arm further comprises a spray member for spraying the liquid. A flexible tube extends around the tubular members and connects to the nozzle member, which is preferably coiled around the tubular members.

Abstract: A liquid injector system includes a liquid injector (10) comprising a container (11) for containing a concentrated liquid and having an opening (13) which is closed by a valve (23). The valve (23) is biased to a closed position by leaf springs (28) and is opened by engagement by a nozzle. Pressure is applied to the concentrated liquid by means of a manually operable piston (19) so that, when the valve (23) is in an open position, at least some of the concentrated liquid is dispensed under pressure from the container (11).

Abstract: A new foam spraying apparatus 1 is described for a liquid container. It comprises a piston and cylinder unit (20; 37) for the air and a piston and cylinder unit (21; 38) for the liquid in which arrangement the piston and cylinder units (20, 37; 21, 38) each are provided with an inlet valve (30; 44) and with an outlet valve (24) and are co-operating being coupled to each other. Furthermore a mixing chamber (14) for the mixture of air and liquid and a spraying head (2) with a foam delivery opening (9) are provided. The cylinder (20) of the first unit and the piston (21) of the second unit are interconnected to an intermediate part (5). Furthermore the piston (37) of the first unit and the cylinder (38) of the second unit are also interconnected to a base part (4) in such a manner that the intermediate part (5) and the base part (4) mesh and are movable relative to each other.

Abstract: An actuator for a liquid spray pump is provided with a skirt which co-operates with a body of the pump to compress a volume of air during pump actuation. Air compressed by this action is ejected from an air injection channel in the vicinity of a liquid spray emerging from a first nozzle defined by the actuator. A second nozzle is connected to the actuator externally of the first nozzle to define an air gap therebetween and the air ejection channel communicates with the air gap such that in use both the liquid spray and the compressed air are dispensed through the second nozzle aperture. Primarily intended for dispensing water based products, the effect of the compressed air is to assist in the evaporation of water contained in the liquid or any other volatile liquid dissolved in a liquid product to be dispensed in aerosol form.

Abstract: The present invention includes an improved apparatus for discharging liquids in a spray, including a separable housing, a recyclable liquid module containing liquid to be sprayed and a weight activated air compressor or pump which supplies compressed air to the liquid module upon agitation of the entire apparatus. The liquid module including the liquid within forms part of the driving weight utilized by the pump. The liquid module is inserted into the separable housing and can reciprocate within the housing; it is connected to the pump with a conduit and coupling for the transfer of compressed air to the liquid module. A second conduit conducts liquid to be sprayed from the liquid module to the outlet valve for discharge.

Abstract: The invention comprises a synthetic pack, in the filler container (11) of which there is integrated a compression spring element (16), against whose resistance a dispensing head (12) can be moved downwards with its carrier (18) of the filler container (11) and the filler can be pressurized. A ventilation valve (50) is herewith closed prior to the opening of a dispensing valve (22), which is circuit-connected into a product duct formed by a lifting tube (15) and product ducts (27, 40, 14). The dispensing head (12) is sealtight on the carrier (18) of the filler container (11), but is twistable between a closed position and an open position, the product duct (14, 40) of the dispensing head (12), in the open position, being aligned with the product duct (27) in a lifting tube nipple (20) and the ventilation valve (50) of the dispensing head (12) being aligned with a ventilation opening (29) in a headplate (19) of the carrier (18).

Abstract: The present invention presents an improved pump piston for pressurizing liquid dispensing containers, and more particularly improved air inlet valve designs for such pistons. According to the present invention, the inlet valves are located remotely from the lower end of the pump piston, such that they are protected from contamination by liquid product and resulting degradation of performance. One inlet valve design utilizes a lost motion connection between the pump piston and upper cap, with structural elements of the upper cap and piston cooperating to form an inlet valve that is opened to admit air into the interior of the piston when the cap is pulled upward and tightly sealed when the cap is pushed downward. Another inlet valve design utilizes slits in the wall of the piston itself and the flexibility of the piston material to form an inlet valve that is opened to admit air into the interior of the piston when the cap is pulled upward and tightly sealed when the cap is pushed downward.

Abstract: A trigger sprayer for generating a spray of liquid from a container comprising five parts including a housing having a tubular piston with an open ended liquid flow passageway therein; a tubular actuator member slidably received over the piston, having a trigger rigidly extending therefrom and defining a chamber therein with a spray orifice at one end; a rod disposed in the actuator member and including a frustoconical skirt forming a valve in the chamber across the spray orifice; an inlet valve carried by the tubular piston and including an extended valve portion slidably seated on the rod, and a biasing spring disposed between the valves. The inlet valve may include a shipping seal member formed integrally therewith and disposed on the inlet passage to seal it until the sprayer is ready for use whereupon the rod will displace or break the seal upon actuation of the sprayer.

Abstract: A manually operable trigger pump has a pump body, a circular cap disposed below the body and adapted to engage a container having material to be pumped out, a generally vertical trigger pivotally coupled at its upper end to the body and a linkage coupled at one end to the trigger intermediate its ends and extending inclinedly upwards from the coupled end into the body. A locking device is securable to and is manually rotatable about the cap. A generally horizontal arm integral at one end with the device extends radially outward from the cap. The arm has a radially extending recess in its top surface. The device is rotatable to a locked position at which the other end of the arm is aligned with but is inwardly spaced from the trigger and the linkage engages the recess. At this point, when the trigger is squeezed, the movement between the trigger and the other end of the arm is insufficient to actuate the pump, but is large enough to raise the linkage partially out of the recess.

Abstract: A smoke ring device that permits the user to create through an outlet on the housing thereof a series of smoke rings created from a fine powder by generating means contained within the housing having associated therewith pumping means for manually obtaining an air current flow relative to the fine powder to form puffs of powder in an air passage contained within the housing. Deflecting means is mounted within the housing adjacent the outlet and communicating with the air passage for creating air turbulence in a direction to lift the powder from the container and form a smoke ring when exiting from the outlet.

Abstract: An arrangement in liquid sprayer containers designed to form an excess pressure inside the containers so as to allow the liquid contained therein to be discharged through a nozzle in the form of a spray. The arrangement inclues a head provided with a manually operable valve mechanism. The nozzle is in communication with the valve mechanism and arranged, upon opening of the valve, to discharge the liquid in atomized form. A cap encloses the head and when forced downwards it compresses the air in the space enclosed by the cap, whereby the valve opens a passage allowing the excess pressure to propagate into the container. Upon elimination of the excess pressure the valve mechanism again closes the passage.

Abstract: This present invention relates to a spray head for spray diffusers of liquids, powders, and the like. This spray head consists of three separable parts mounted together to form an air-admission chamber between them. The head has an internal groove for collecting traces of the spray products after each spraying operation, such that the product does not flow down the side of the head and the diffuser to render the diffuser inoperative.

Abstract: An improved fluent product dispenser in which the product is dispensed by means of compressed air has a dispenser body having a dispensing means therein for mixing and dispersing the fluent product and compressed air and has a piston-cylinder means thereon by which the air is compressed, and when it reaches a certain predetermined pressure, is suddenly released. The fixed member of the piston-cylinder means has a fluent product containing recess opening toward the movable member of the piston-cylinder means, and a product pressurizing piston in the product containing recess has an end exposed toward the movable member or the piston-cylinder means. A product control valve means controls the flow of product from the product containing recess to the dispensing nozzle through the body. Likewise, a compressed air valve opens to permit flow of compressed air through a compressed air path in the body to the nozzle when the compressed air reaches a certain predetermined pressure.

Abstract: An aerosol dispenser for fluid products is described which has a container for product to be dispensed, a separator piston pump for generating compressed air as a propellant, a spray nozzle for aspirating, and spraying product from the product container, flowpaths, for compressed air from the piston pump, and for product from the product container, to the spray nozzle, valves and associated with the flowpaths and opening the paths dependent on the piston approaching or reaching full compression stroke position in the cylinder of the aforesaid piston pump. An abutment in the piston pump acts, in the aforesaid compression stroke position, on the valve body of the compressed air flow-controlling valve. The product flow control valve has a flexible elastic diaphragm across the compressed air flowpath and separating the latter from the interior of the product container.

Abstract: A fluent product dispenser in which the product is dispensed by means of compressed air has a dispenser body having a dispensing means therein for mixing and dispersing the fluent product and compressed air has a piston-cylinder means thereon by which the air is compressed, and when it reaches a certain predetermined pressure, is suddenly released. The fixed member of the piston-cylinder means has a fluent product containing recess opening toward the movable member of the piston-cylinder means, and a product pressurizing piston in the product containing recess has an end exposed toward the movable member or the piston-cylinder means. A product control valve means controls the flow of product from the product containing recess to the dispensing nozzle through the body. Likewise, a compressed air valve opens to permit flow of compressed air through a compressed air path in the body to the nozzle when the compressed air reaches a certain predetermined pressure.

Abstract: The invention comprises a synthetic pack, in the filler container (11) of which there is integrated a compression spring element (16), against whose resistance a dispensing head (12) can be moved downwards with its carrier (18) of the filler container (11) and the filler can be pressurized. A ventilation valve (50) is herewith closed prior to the opening of a dispensing valve (22), which is circuit-connected into a product duct formed by a lifting tube (15) and product ducts (27, 40, 14). The dispensing head (12) is sealtight on the carrier (18) of the filler container (11), but is twistable between a closed position and an open position, the product duct (14, 40) of the dispensing head (12), in the open position, being aligned with the product duct (27) in a lifting tube nipple (20) and the ventilation valve (50) of the dispensing head (12) being aligned with a ventilation opening (29) in a headplate (19) of the carrier (18).