US 9,511,381 B2 · Spray nozzle and aerosol product

Abstract

[Problem to be solved] To provide a spray nozzle and an aerosol product in which the density difference between the center and the periphery is small. And to provide a spray nozzle and an aerosol product which give a spray pattern in which the spray density of peripheral portion does not decrease so much. [Solution] A nozzle 10 for an aerosol product, in which the shape along the spray direction of the spray pattern F becomes a semi parabolic shape. The nozzle 10 in which the spray pattern is planar or plate-like surrounded by a semi parabola-like shape and a center line C, and in which the planar spray thereof becomes a shape such that a plurality of sheets is arranged at an equal interval in a circumferential direction around the center C of the nozzle. The cross section of the spray pattern F can be formed into various shapes of an I type, a Y type, an X type, a V type, an S type etc according to the shape of slit passage of the front face of the nozzle 10. An aerosol product E equipped with a container body 31, a valve 32 provided in the upper end of the container body, and a nozzle 10 attached to the valve thereof.

Claims18

Dependent claims

A spray nozzle of which a contour portion of a spray pattern is pulled inside by spraying, a shape along a spray direction of the spray pattern being formed into an approximately semi parabolic shape,

wherein the spray nozzle comprises, inside thereof, a passage to make a content pass through, and a convergent taper portion or a gradient portion concentrically provided in a front end of the passage,
wherein a center of a front end of the inside of the spray nozzle is plugged,
wherein the spray nozzle has a plurality of openings arranged radially relative to a center line of the inside of the spray nozzle,
wherein a plurality of slit passages which connect each opening and an outer space are provided respectively, and each slit passage extends from one of the openings in a radial direction relative to the center line of the inside of the spray nozzle such that the slit passages connect to the outer space at different locations from each other,
wherein the slit passages are grooves that are formed in an outer face of the spray nozzle and are open to the outer space,
wherein the slit passages are independent of one another such that there are no junctions between any of the slit passages, and
wherein the slit passages are arranged at equal intervals all the way around the center line of the inside of the spray nozzle.

4 more elements

A spray nozzle having, inside thereof, a passage to make a content pass through, a convergent taper portion or a gradient portion concentrically provided in a front end of the passage, and a small diameter nozzle hole passage concentrically extending from a front end of the taper portion or the gradient portion,

wherein a center of a front end of the small diameter nozzle hole passage of the spray nozzle is plugged relative to a center line of the inside of the spray nozzle,
wherein the spray nozzle has a plurality of openings arranged radially relative to a center line of the inside of the spray nozzle, and
wherein a plurality of slit passages which connect the openings and an outer space are provided, and each slit passage extends from one of the openings in a radial direction relative to the center line of the inside of the spray nozzle such that the slit passages connect to the outer space at different locations from each other,
wherein the slit passages are grooves that are formed in an outer face of the spray nozzle and are open to the outer space,
wherein the slit passages are independent of one another such that there are no junctions between any of the slit passages, and
wherein the slit passages are arranged at equal intervals all the way around the center line of the inside of the spray nozzle.

3 more elements

Dependencies are inferred from the claim text.

Spray nozzle and aerosol product

Life of this patent

Spray nozzle and aerosol product

Life of this patent

Abstract

Claims18