A hair color delivery system includes a flexible bottle, a dispensing cap having a tapered nozzle, an asymmetric bi-directional valve assembly, and a dispensing tube. The valve assembly comprises a platform, and a pair of valves, comprising tapered extensions through which fluid may be expelled from
A hair color delivery system includes a flexible bottle, a dispensing cap having a tapered nozzle, an asymmetric bi-directional valve assembly, and a dispensing tube. The valve assembly comprises a platform, and a pair of valves, comprising tapered extensions through which fluid may be expelled from the bottle and ambient air may enter the bottle. The valves are offset from each other so that they are not co-axial or rotationally symmetric. The delivery system enables a method of substantially continuous delivery of a fluid chemical, yielding a hair treatment that it is easy and safe to use in which the tapered nozzle stays fully charged with product as air can be admitted to a dispensing bottle through a different valve than that used for dispensing.
대표청구항▼
1. A hair color delivery system, comprising: a flexible bottle;a cap secured to a mouth of the flexible bottle;a bi-directional valve assembly situated between the flexible bottle and the cap and secured to the bottle by the cap, the bi-directional valve assembly including:an input valve defining an
1. A hair color delivery system, comprising: a flexible bottle;a cap secured to a mouth of the flexible bottle;a bi-directional valve assembly situated between the flexible bottle and the cap and secured to the bottle by the cap, the bi-directional valve assembly including:an input valve defining an input slit, the input valve extending from a first planar surface of a gasket base and including a tapered extension that extends to an entrance surface containing the input slit, thereby defining an input aperture, andan exit valve defining an exit slit, the exit valve extending from a second planar surface of the gasket base in a direction opposite to that of the input valve and including a tapered extension that extends to an exit surface containing the exit slit, thereby defining an output aperture, wherein the first and second planar surfaces are opposing surfaces of the gasket base, and wherein the exit valve is operable in response to pressure in the flexible bottle; anda delivery tube having a proximal end coupled to the output aperture of the exit valve and a distal end that extends into the flexible bottle; wherein the cap includes a nozzle fluidically coupled to the proximal end of the delivery tube by the exit valve. 2. The hair color delivery system of claim 1, wherein the nozzle is tapered. 3. The hair color delivery system of claim 2, wherein the tapered nozzle includes an elbow portion and a delivery tube extending to a nozzle tip, wherein the elbow portion includes an elbow angle such that the delivery tube is tilted upwards from horizontal with the bottle in an upright position. 4. The hair color delivery system of claim 1, wherein the input valve extends into the bottle and the exit valve extends into the cap. 5. The hair color delivery system of claim 4, wherein the input valve and the exit valve extend along offset axes. 6. The hair color delivery system of claim 1, wherein the tapered extension of the exit valve includes opposing tapered flat surfaces that terminate at the exit surface, wherein the exit surface is substantially rectangular. 7. The hair color delivery system of claim 1, wherein the tapered extension of the input valve includes opposing tapered flat surfaces that terminate at the entrance surface. 8. The hair color delivery system of claim 1, wherein the bi-directional valve assembly is of unitary construction of a flexible material. 9. A method of substantially continuous delivery of a fluid to a target area, the method comprising: providing a flexible bottle;at least partially filling the flexible bottle with the fluid;covering an opening of the flexible bottle with an asymmetric bi-directional valve assembly, comprising: an input valve defining an input slit, the input valve extending from a first planar surface of a gasket base and including a tapered extension that extends to an entrance surface containing the input slit, thereby defining an input aperture, andan exit valve defining an exit slit, the exit valve extending from a second planar surface of the gasket base in a direction opposite to that of the input valve and including a tapered extension that extends to an exit surface containing the exit slit, thereby defining an output aperture, wherein the first and second planar surfaces are opposing surfaces of the gasket base, and wherein the exit valve is operable in response to pressure in the flexible bottle;covering the asymmetric bidirectional valve assembly with a cap including a nozzle fluidically coupled to the proximal end of the delivery tube by the exit valve;securing the cap to the flexible bottle;expelling fluid from the flexible bottle in response to application of external pressure on the flexible bottle by directing the fluid through the exit valve; andadmitting air into the flexible bottle through the input valve so as to adjust internal and external pressures on the flexible bottle, thereby permitting the flexible bottle to at least partially recover from the compression, and maintaining fluid in the nozzle. 10. The method of claim 9, wherein the fluid is expelled with the bottle in an upright position. 11. The method of claim 9, wherein the fluid is expelled along an axis that is tilted upward at an angle of between 1 and 30 degrees from horizontal. 12. A fluid delivery system, comprising: a flexible bottle;a cap secured to a mouth of the flexible bottle and comprising at least one aperture;an asymmetric bi-directional valve assembly situated between the flexible bottle and the cap and secured to the bottle by the cap, the asymmetric bidirectional valve assembly including:a gasket base comprising at least one protrusion configured to impede rotation of the valve assembly and wherein the at least one protrusion is configured to be accepted by the at least one aperture of the cap;an input valve defining an input slit, the input valve extending from a first planar surface of the gasket base and including a tapered extension that extends to an entrance surface containing the input slit, thereby defining an input aperture, andan exit valve defining an exit slit, the exit valve extending from a second planar surface of the gasket base in a direction opposite to that of the input valve and including a tapered extension that extends to an exit surface containing the exit slit, thereby defining an output aperture, wherein the first and second planar surfaces are opposing surfaces of the gasket base, and wherein the asymmetric bi-directional valve assembly is of unitary construction of a flexible material; anda delivery tube having a proximal end coupled to the output aperture of the exit valve and a distal end that extends into the flexible bottle; wherein the exit valve comprises an untapered section coupled to the tapered extension and further shares a wall common to the input valve and wherein the cap includes a nozzle fluidically coupled to the proximal end of the delivery tube by the exit valve. 13. The fluid delivery system of claim 12, wherein the input valve and the exit valve are responsive to a pressure in the flexible bottle. 14. The fluid delivery system of claim 13, wherein the exit valve is configured to deliver a hair color product from the flexible bottle in response to a pressure applied to the flexible bottle and the input valve is configured to admit air into the flexible bottle upon release of the pressure applied to the bottle, and wherein the exit valve is closed in response to release of the pressure applied to the flexible bottle and the input valve is configured to remain closed in response to the applied pressure.
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Szczepanski Harry (755 Oakleigh Rd. ; NW. Grand Rapids MI 49504), Atomizing liquid dispenser.
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