Abstract:
A device for dispensing a spray of fine droplets of liquid in gas. The device has a dispenser body, with an aspirating nozzle opening out of the body and having a central through passage and lateral passages opening into the through passage. The dispenser body also has a supply chamber therein to which the lateral passages are connected. A source of liquid to be dispensed is operatively associated with the dispenser body and the dispenser body has a valved product flow path therethrough from the source of liquid to the supply chamber. A source of gas under pressure is also operatively associated with the body and the body has a branched compressed gas flow path therethrough from the source of gas under pressure to the central through passage of the nozzle and to the supply chamber.
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 pistoncylinder 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. A product valve actuator is coupled to the product valve and is open to the compressed air flow path to open the product valve in a predetermined time relationship to the opening of the compressed air valve means, so that when the movable member of the piston-cylinder means is moved toward the fixed member for compressing air, the compressed air acts on the product pressurizing piston for pressurizing the product, and when the compressed air is released from the piston-cylinder means it actuates the product valve and releases the product only upon release of compressed air.
Abstract:
A metered dose dispenser has a piston-cylinder means for containing a body of liquid to be dispensed and having one member engageable by the finger of a user to exert pressure on the liquid. A metering valve means is mounted on the other member of the piston-cylinder means and has one portion which projects out of the said other member of the piston-cylinder means. The metering valve means is movable into and out of the other member of the piston-cylinder means for valving a metered amount of liquid from the piston-cylinder means when it is moved into the other member of the piston-cylinder means. The pressure on the liquid within the piston-cylinder means exerted by the finger pressure on the one member thereof is transmitted through the liquid being passed by the metering valve means and causes the metering valve means to emit the metered amount of liquid in a squirt. The device can be combined with a device for compressing air and, after the completion of the compression, suddenly releasing the compressed air and delivering it to a nozzle. In the combined structure there is provided a passage for conducting the liquid which is passed by the metering valve means to the nozzle where it is combined with the compressed air and emitted from the nozzle as a spray of find droplets of the liquid in compressed air.
Abstract:
A spray fitment for squeeze bottles including a generally cylindrical plug for sealing reception in the neck opening of a conventional, flexibly resilient squeeze bottle. The plug has an axial opening therethrough, in which is supported a dispensing valve housing, between which and the inner wall of said opening is defined an axial air inlet port controlled by an air inlet valve carried by the valve housing. Formed through the valve housing are separate product and air discharge passages opening into a mixing chamber adjacent to a discharge orifice. There is provided a flexible resilient spray discharge valve in the form of a diaphragm which automatically closes the orifice at the conclusion of each squeeze or discharge stroke to prevent backflow of air into the container. When thus closed, the spray discharge valve isolates the air discharge passage from the product discharge passage, to thereby prevent backflow of product and thus to maintain the product passage constantly primed in readiness for ejecting a full charge of product on each squeeze stroke, while preventing clogging of the air discharge passage by the product.
Abstract:
A compressed air actuated dispensing device has a valve assembly having a valve body with a compressed air flow path therethrough and a valve member movable in the valve body and obturating the compressed air flow path. Aspirating means is provided at one end of the compressed air flow path and a product containing means in the device feeds product through a product flow path to the aspirating means. A piston-cylinder means is provided around the other end of the compressed air flow path, and a mechanical force multiplying means having an actuating member projecting out of the device is engaged with the piston for compressing air, the piston engaging the valve member for opening the compressed air flow path only after air in the piston-cylinder means has been compressed.
Abstract:
A dispenser includes a container enclosing several fluid components in isolated sac chambers. The chambers communicate through a valve with at least one passage in a coupler-aspirator. An aerosol propellant cartridge with a valve couples with another passage in the coupler-aspirator. The valve includes a stationary stem and a movable stem member. The sac chambers have adaptors which communicate with the valve. The adaptors may be unitary or individual.
Abstract:
A dispenser for spraying a multi-component product includes a product container housing the product components. The components are mutually isolated and are put in communication with product passages through a valve of the container. The stem of the valve is connected to a coupler-aspirator. An aerosol propellant cartridge is also connected to the coupler-aspirator. When the propellant cartridge is depressed, both the valve thereof and the container valve are opened. The product components are then combined and aspirated by the propellant through the coupleraspirator.