Dispensing – Collapsible wall-type container – With casing or support
Patent
1986-05-06
1988-02-02
Rolla, Joseph J.
Dispensing
Collapsible wall-type container
With casing or support
222513, 222517, 222529, 222541, B65D 3556, B67D 300
Patent
active
047224584
DESCRIPTION:
BRIEF SUMMARY
This invention relates to an improved dispensing valve for containers for fluids and particularly containers of the "bag-in-box" variety.
The object of the invention is to provide a dispensing valve which is relatively easy to operate.
With most bag-in-box type dispensing arrangements currently in use the dispenser is fitted to a spout which is welded to the bag and filling of the bag is effected through the spout. To fill the bag the dispenser in most cases is removed from the spout prior to filling and on completion of filling is replaced over the spout. This usually requires that the dispenser closure be separate from the spout prior to filling or that the dispenser closure be loosely fitted to the spout prior to filling. As a result there is a high risk of contamination due to the resultant exposure of the internal surfaces of the spout and dispenser closure.
In addition when the dispenser is in position on the spout on completion of filling there is always the danger that it may become dislodged in use or during transport causing the loss of contents of the bag. Furthermore there is always the possibility of leakage of liquid from the bag and/or the entry of air into the bag through the junction between the dispenser closure and spout.
Furthermore to use the valve the whole fitting must be extracted from within and fitted to the carton before use.
It is an object of this invention to provide a sealed dispenser closure which is sealingly retained to the container with which it is associated.
It should be appreciated however that the invention need not be limited to use with bag-in-box type containers.
In one form the invention resides in a dispensing valve for a fluid container comprising a tubular portion having an inlet at one end and closed by a resiliently deformable diaphragm at its other end, a discharge outlet provided in the wall of the tubular portion, a flow control member positioned within the tubular portion and coupled to the diaphragm for movement relative to the discharge outlet between a closed position and an open position on deformation of the diaphragm.
According to a preferred feature of the invention the dispensing valve has a flexible skirt adapted at one end to be sealingly engaged with an opening in the container and fixed at its other end to the one end of said tubular portion whereby said valve is movable in relation to the one end of the flexible skirt such that when in position on a container the valve may be located within the container in an inoperative position or located to the exterior of the container in an operative position.
According to a further preferred feature of the invention a seal is fixed or integrally formed over the discharge outlet, said seal being adapted to be capable of being torn or cut away to expose said discharge port.
According to further preferred feature of the invention the valve is mounted to a flexible container which is accommodated within a rigid container.
The invention will be more fully understood in the light of the following description of one specific embodiment. The description is made with reference to the accompanying drawings of which:
FIG. 1 is a sectional elevation of a dispenser valve according to the embodiment;
FIG. 2 is an inverted plan view of the discharge outlet seal of the embodiment;
FIG. 3 is an end elevation of the flow control member of the valve;
FIG. 4 is a side elevation of the flow control member; and
FIG. 5 is a cross-sectional elevation showing the tubular member in the closed and open positions.
The embodiment is intended for use with bag-in-box type packaging. The valve comprises a body having an inlet 11 formed with a flange 18 which is adapted to be fixed to the opening of a flexible inner container (not shown). A radially outwardly directed groove 19 is formed around the body adjacent the flange 18. The purpose of the groove 19 is to facilitate engagement with the wall of the rigid outer container which houses the flexible inner container.
The body comprises a tubular flexible resilient skirt 17 extending
REFERENCES:
patent: 2661128 (1953-12-01), Rieke
patent: 4169548 (1979-10-01), Bond
patent: 4294382 (1981-10-01), Summers et al.
patent: 4368832 (1983-01-01), Lambert
patent: 4440316 (1984-04-01), Christine
patent: 4570826 (1986-02-01), Fattori
Huson Gregory L.
Kiff Pty. Ltd.
Rolla Joseph J.
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