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US 4,072,162 AGranted
Valve structure for a spraying container
AssigneePont-A-Mousson S.A.
InventorsPierre Bellehache, Yves Le Troadec
Life of this patent
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AssigneePont-A-Mousson S.A.
InventorsPierre Bellehache, Yves Le Troadec
Estimating the term…
In a spraying container structure, before the sealing and blowing operations there is mounted in the valve body comprising a housing and a cover which is provided with a temporary sleeve, a closure member which is adapted to cooperate with a sealing element to close the valve. The closure member is maintained in the valve open position in the valve body during the production of the container.
In a valve for assembling with a container and thereby forming a spraying container structure, the valve comprising a housing, a cover which is provided with a temporary sleeve and is combined with said housing to form a valve body, the housing and the cover defining therebetween a chamber and each defining an axial aperture opening into said chamber, the aperture of the housing being for putting the chamber in communication with the interior of the container and the aperture of the cover communicating with the interior of the sleeve, a sealing element mounted in the chamber, a closure member mounted in said chamber to be movable between an inoperative position spaced away from the sealing element and providing for communication between the chamber and the interior of the sleeve through said cover aperture and an operative position in which it is in sealing engagement with the sealing element for sealing off the cover aperture from the chamber, elastically yieldable means interposed between the valve body and the closure member for applying the closure member against the sealing element in said operative position;
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
No related US applications are recorded in the indexed filing history.
Filling or charging means: delivery valves permitting filling or charging
Combined blow-moulding and manufacture of the preform or the parison: extrusion blow-moulding
Of articles having inserts or reinforcements ; Handling of inserts or reinforcements: inside the article
Inserts characterised by the material or type: neck portions
Term ended 7 Feb 1995 (estimated)
USPTO file history isn’t available for this patent, so only indexed dates are shown.
The present invention relates to an aerosol bottle, and more particularly applies to a valve structure for such containers.
In the course of this operation, plastics material is presented in the form of a blank which is usually engaged around the body of a valve and clamped against the latter, the interengagement being ensured by projections provided on the outer lateral surface of the body of the valve. When the blank is thus rendered integral with the body of the valve, the subsequent operations comprise introducing inside the blank various fluids, such as air for blowing and forming the body of the container, inert gas for cooling and scavenging, a filling product and a propelling product. Consequently, the valve must be in its open position for all these operations.
In the prior art, the different aforementioned fluids are supplied via a sleeve which is rendered temporarily integral with the body of the valve and enter the container in passing through the valve which is devoid of its closure member or piston. This closure member or piston is in a waiting position inside the temporary sleeve and is introduced into the body of the valve only at the end of the filling operations, the closure member or piston being for this purpose pushed through the sealing element provided inside the body of the valve. There is shown in the valve body, which comprises a housing and a cover provided with a temporary sleeve, a closure member adapted to cooperate with a sealing element to ensure the closure of the valve, and the closure member is maintained in the valve-opening position in the valve body during the manufacture of the container.
Further features and advantages of the invention will be apparent from the ensuing description with reference to the accompanying drawings in which:
FIG. 1 is a partial axial sectional view of an assembly permitting the application of the invention, with the valve in its open position;
FIG. 2 is a sectional view taken on line 2--2 of FIG. 1;
In the embodiment shown in FIGS. 1-3, the invention is applied to a container of the aerosol bottle type comprising a body 1 obtained by the extrusion and blowing of a blank of plastics material and a valve body generally designated by the reference numeral 2. The neck 3 of the container is sealed around the valve body 2, the interengagement of the two elements being achieved by the effect of grooves 4 and projections 5 provided on the outer lateral surface of the valve body 2.
The valve body 2 comprises two parts, namely a housing 6 and a cover 7 which are assembled by clipping the cover 7 on an annular ramp or ledge 8 of the housing 6. The end of the housing 6 facing the interior of the container is provided with an end portion 9 on which a plunger tube 10 is fitted.
The end portion 9 is provided with a bore 11 having an axis X-X which puts the aperture of the plunger tube 10, and therefore the interior of the container 1, in communication with an inner chamber 12 of the housing 6.