Abstract:
In exemplary embodiments of the present invention, Flair® based aerosol-type devices can be provided. Such devices utilize a combination of Flair® technology, pre-compression valves and aerosol like pressurization of the dispensed liquid. Such a dispensing device has a main body comprising a pressure chamber, the latter being provided with a pressure piston and a pressure spring. The device further has a piston and a piston chamber which draws liquid from a reservoir and fills the pressure chamber with that liquid as a user operates the trigger in various compression and release strokes. The piston chamber has both an inlet valve and an outlet valve. In a dispensing head a valve is provided to regulate the strength of the flow and preclude leakage. Once the liquid is sufficiently pressurized, it can be dispensed by a user opening an activation valve, such as by pressing on an activation button, and spray can be abruptly stopped by a user ceasing to push on such button. Or, for example, in alternate embodiments without an activation button, once the liquid is sufficiently pressurized, continuous spray occurs until the pressure chamber is emptied. By repeatedly pumping the trigger before the pressure chamber is fully emptied, continuous spray can be achieved. By designing the input volume to be amply greater than the volume of the pressure chamber, continuous spray with fewer pumping strokes can be implemented.
Abstract:
The invention relates to a system (1) for dosed dispensing of a fluid, comprising a contain (2) for the fluid and a dispensing device connected therewith, wherein the container comprises a form-retaining outer container (5) and a flexible inner container (4) connected therewith, wherein a space to be brought into fluid communication with the ambient atmosphere can be developed between the inner and outer containers (5, 4), and wherein the dispensing device includes a housing and/or frame of which at least a part is integrally formed with the container. The invention further relates to a method of manufacturing a system for dosed dispensing of a fluid.
Abstract:
A preform can be made from two different materials that do not bond together by a bi-injection process, using the same mold. First an outer preform can be fashioned first, then an inner preform molded through a center hole in the outer preform, and the preforms connected. Inner/outer preform materials can be different, e.g., PET/polyolefin or polyamide, or the same, e.g., PET/PET. To prevent mutual bonding during molding of the second, a non-stick coating can be sprayed on a surface portion of the first preform prior to molding, the second. Manufacturing order can be either outer/inner, or inner/outer, and the non-stick coating sprayed on the inside/outside of the perform first molded.
Abstract:
A composite container, comprising a form-retaining outer container comprising a neck, and a flexible inner container, the inner container comprising a dispensing opening mounted in the neck of the outer container is presented. The inner container is connected over a part of its surface area near the dispensing opening to a corresponding surface area of the inside of the outer container near the neck, via adhesive or weld connection, such that there remains a portion of the inner container not connected to the sidewall of the outer container. In response to an overpressure developed by a displacing medium introduced between the inner container and the outer container, a portion of the inner container that is not connected to the outer container moves at least one of: (i) towards the dispensing opening and (ii) within, the portion of the inner container that is connected to the outer container.
Abstract:
A liquid dispensing device is presented. The device has a main body and a dispensing head. The main body includes a pressure chamber, a pressure spring and a pressure piston, and the dispensing head includes a piston and a piston chamber, a channel in fluid communication with the pressure chamber, an inlet valve provided between said channel and said piston chamber, an outlet valve, an outlet channel, and an outlet valve lock.
Abstract:
In exemplary embodiments of the present invention, various new generation dispensing devices can be provided. Such devices are vertically aligned, provide greater than 1.0 cc per piston stroke, and can involve a range of sprayer heads and sprayer/foamer systems incorporating such heads. Such novel sprayer heads can include a novel stretched piston, or, for example, the standard separate piston and piston chamber configuration. By using integration of parts, and a novel dome valve, exemplary sprayers are more easily manufactured, and have better operating properties. Finally, pre-compression is such novel valves is supplied by a novel dome valve with binary behavior, and minimal hysteresis.
Abstract:
A composite container, comprising a form-retaining outer container and a flexible inner container is presented. The inner container comprises a dispensing opening and can be mounted in a neck of the outer container, and the inner container is further connected to the outer container by an adhesive or weld connection over a portion of its periphery. The adhesive or weld connection can take the form of a ring adhesion or weld extending transversely to a central longitudinal axis of the container, or can cover the entire surface area of a defined portion of the respective inner container and outer container walls, such as, for example, the upper one-half of the container. The adhesion or weld can be substantially permanent, or alternatively, the adhesive or weld connection can be adapted to detach in controlled manner under the influence of pressures occurring in the container. Additionally, a method for manufacturing such a composite container is also presented, including forming a form-retaining outer container pre-form comprising a neck, forming a flexible inner container pre-form comprising a dispensing opening, inserting the inner container pre-form into the outer container pre-form and fixing said inner container pre-form to the neck of the outer-container pre-form.
Abstract:
Systems and methods to dispense various liquids, foams and sprays, of various viscosities, such as, for example, paints and stains, from a self-contained wearable apparatus are presented. These devices use an inner container/outer container technology. A device can be provided that is portable and self-contained, can be worn by a user, and can utilize pre-filled containers of the product to be dispensed, thus obviating use of a separate paint container. Novel performs for the manufacture and blowing of multi-layer bottles are also presented, including an outside layer, and two or more inside layers. The outer layer and the two or more inner containers may each be separately injection molded, or the outer container and one of the inner containers may be 2K molded, thus saving significant manufacturing time and cost.
Abstract:
“Flairosol” dispensing devices are presented. They utilize a combination of Flair® technology, precompression valves and aerosol like pressurization of the dispensed liquid. An exemplary device has a main body comprising a pressure chamber, the latter being provided with a pressure piston and a pressure spring, a piston and a piston chamber which draws liquid from a container, and fills the pressure chamber with that liquid as a user operates a trigger in various compression and release strokes. The piston chamber has both an inlet valve and an outlet valve, which serve to prevent backflow. A dome valve can be provided near the outlet channel at the top of the dispensing head, such that once its pressure is exceeded by the liquid, it opens and allows for a spray. Alternatively, in an activated embodiment, the dome valve is locked unless opened by a user.