Neck-finish for an aerosol container

Abstract

A molded, pressure capable container (50) is provided for use with an aerosol valve assembly (12A) to dispense a fluent product stored in the container (50). The aerosol valve assembly (12A) includes an aerosol valve (24) and a mounting cup (23A) that is crimped onto the container (50) to mount the aerosol valve (24) to the container (50). The container (50) includes a molded body (52) having a chamber (54) to contain a fluent product, a dispensing opening (56) extending from the chamber (54) to an exterior of the container (50), and a neck finish area (57) in the form of an annular neck (58) surrounding the opening (56) and an annular neck flange (60) on a distal end of the annular neck (58) to mount the aerosol valve assembly (12A). The neck flange (60) is defined by a radially outermost, annular edge (62); an annular end surface (64) extending from the annular edge (62) to the opening (56); and a frustoconical-shaped surface (66) extending from the annular edge (62) to an outer surface (68) of the annular neck (58).

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]Not Applicable.FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not Applicable.MICROFICHE / COPYRIGHT REFERENCE[0003]Not Applicable.TECHNICAL FIELD[0004]This invention relates generally to a dispensing system for a fluent product, which can include liquids, gases, foams, dispersions, paste, creams, etc. The invention more particularly relates to dispensing systems that include a pressure capable container, such as for example, an aerosol container.BACKGROUND OF THE INVENTION AND TECHNICAL PROBLEMS POSED BY THE PRIOR ART[0005]Aerosol packages are used for storing and dispensing fluent products, such as, for example, paint, hairspray, whip cream, etc. and are typically made up of a pressure capable container, an aerosol valve assembly, a dispensing actuator, and a propellant. In the aerosol spray industry, the pressure capable containers have historically been provided in the form of molded glass bottles, formed or fabricated metallic cans or...

AI Technical Summary

Benefits of technology

[0019]Other objects, features, and advantages of the invention will become apparent from a review of the entire specification, including the appended claims and drawings.

[0020]FIG. 1 is a longitudinal, partial section view illustrating a prior art pressure capable container and aerosol valve assembly;

[0021]FIG. 2 is an enlarged, fragmentary view of the area indicated in FIG. 1 by the dashed line labeled “FIG. 2”;

[0022]FIG. 3 is an enlarged view of a mounting cup component of the aerosol valve assembly of FIG. 1 prior to installation;

[0023]FIG. 4 is a longitudinal, partial section view of another prior art pressure capable container and aerosol valve assembly;

[0024]FIG. 5 is an enlarged, fragmentary view of the area indicated in FIG. 4 by the dashed line labeled “FIG. 5”;

[0025]FIG. 6 is an enlarged view of a mounting cup component of the aerosol valve assembly of FIG. 4 prior to installation;

[0026]FIG. 7 is a longitudinal, partial section view of a pressure capable container and aerosol valve assembly embodying the present invention;

[0027]FIG. 8 is an enlarged, fragmentary view of the area indicated in FIG. 7 by the dashed line labeled “FIG. 8”; and

[0028]FIG. 9 is an enlarged view of the area indicated in FIG. 7 by the dashed line labeled “FIG. 9”, but in FIG. 9 the mounting cup and gasket have been omitted.

Problems solved by technology

Specifically, because of the brittleness of glass, excessive stresses from the crimped fitment with the mounting cup of the aerosol valve assembly could cause a leak or vulnerable spot for failure if dropped or if put under excessive environmental conditions.

Images