FLAIR SPRAYERS AND ISOLATION OF PRODUCT AND VENTING/PROPELLANT IN DISPENSING DEVICES

摘要

Various liquid dispensing devices are presented based on Flair® technology. In exemplary embodiments of the present invention, a "Flair Sprayer" can be provided with no dip tube, and be capable of use in any orientation, including upside down. Because of its valving system, in which the product delivery circuit is a closed system, such a Flair Sprayer can pump out any air or other gas in a headspace of a bottle, and the product/liquid always reaches the pump intake, even with no dip tube. In exemplary embodiments of the present invention a dispensing device can have separate product and re-venting/propellant circuits, isolated one from the other, allowing for longer life and freshness of the product. In such exemplary embodiments displacement media can be used for various ancillary functions, all the while remaining isolated from the product, and the dispensing of the product can be adeptly controlled by pressure differentials.