Method of fitting pressurized spraying containers

Abstract

The specification describes a valve assembly for and a method of manufacturing a pressurized spraying container. The body of the valve is provided with an external tubular extension or sleeve in which is temporarily located the valve member. The sleeve is used to guide fluid under pressure into the container and may also be used during the blow molding of the container. When the container is filled, the valve member is forced through the sleeve into engagement with its valve seat, where it is retained by an already positioned spring, and the sleeve is detached.

I claim: 
     
       1. A method of manufacturing a filled, pressurized spraying container, comprising the steps of: a. forming a valve assembly comprising, in combination: aa. a valve body;   bb. means defining a passageway through said valve body;   cc. an annular valve seat within said passageway;   dd. a detachable sleeve mounted on said body externally thereof and coaxial with said passageway;   ee. a valve member releasably located within said sleeve;   ff. retaining means locating said valve member in said sleeve; and   gg. means defining openings in said retaining means;     b. providing a container;   c. mounting said valve assembly on said container, with said valve body sealed thereto and said passageway communicating with the container interior;   d. injecting filling fluid through said sleeve, past said valve member, through said openings and said passageway, into said container interior;   e. forcing said valve member from said sleeve into said passageway beyond the valve seat to form an openable seal on said valve seat; and   f. detaching said sleeve from said valve body.   
     
     
       2. A method of manufacturing a filled, pressurized spraying container as claimed in claim 1, wherein said container is provided and said valve assembly is mounted thereon by the steps of mounting a parison in an open blow mold; introducing said valve assembly into said parison; closing said blow mold to seal said parison on said valve body; and injecting blowing fluid through said sleeve, past said valve member, through said openings and passageway, into the interior of said parison effective to blow mold said container.