Method of fitting pressurized spraying containers
AssigneeRhone-Poulenc S. A.
InventorYves Le Troadec
Life of this patent
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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.
Claims2
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.
Dependencies are inferred from the claim text.