Dispensing – Collapsible wall-type container – With wall-collapsing means
Patent
1995-04-10
1997-05-27
Kashnikow, Andres
Dispensing
Collapsible wall-type container
With wall-collapsing means
222135, 2221466, 2221455, B65D 3530
Patent
active
056324154
DESCRIPTION:
BRIEF SUMMARY
This invention relates to dispensing machines and in particular, but not exclusively, to dispensing machines for dispensing food products of solid, semi-solid or viscous form.
It has been proposed to dispense product from deformable containers in which the product has been packed, the product discharging from an outlet at one end of the container when engaged by drive means at the opposite end of the container.
An object of the invention is to provide an improved dispensing machine and container therefor.
According to one aspect of the invention a dispensing machine comprises a deformable container open at one end and arranged to be engaged by a plunger at the opposite end, the container deforming upon engagement by the plunger to reduce its internal volume, sealing means releasably sealable with the open end of the container and having at least one outlet for discharging product from within the container, a housing for the container, drive means for moving the plunger towards the outlet, and a discharge nozzle communicating with the outlet.
In one arrangement the side walls of the container between the ends are deformable during operation of the plunger and the open end of the container is engageable with the sealing means which is in the form of a sealing plate, releasable securing means being engageable with said container end to seal said end against the sealing means.
Conveniently the releasable securing means is in the form of a band or ring located around the open end of the container and engageable against the sealing plate.
The container may be generally cylindrical and the open end has a size approximating to the diameter of the cylinder and the generally cylindrical side walls of the container may be of corrugated form to permit deformation of the side walls in the longitudinal direction of the container.
Preferably the housing encloses the container in use and the container is located generally horizontally within the housing. Conveniently the housing is formed with an upper and a lower part and the housing is located within an insulated chamber.
The lower part of the housing and the sealing plate may be movably mounted to move the container to a position in which the container may be released from the sealing plate and the housing. Conveniently the machine comprises drawer means on which the housing and container are supported.
The drive means may comprise a piston and cylinder device operable to engage the plunger with the container at its end remote from the outlet, the piston and cylinder device comprising a multi cylinder arrangement in which the stroke of the piston is greater than the closed length of the cylinder.
The machine may comprise two or more of said deformable containers each associated with sealing means and drive means, and the containers communicating with a common discharge nozzle whereby product from each container may be discharged through said nozzle. In this arrangement the nozzle may be formed by nozzle means communicating with each container and having valve means wherein product from either container or both containers is dischargeable through the common nozzle.
Conveniently the drive means is located displaced to the side of the axis of the or each container and with its axis of movement parallel to said container axis, the plunger being connected to the drive means by a linkage.
The sealing means may carry removable gasket means which is interposed between the sealing means and the product to prevent contact between the product and the sealing means.
According to another aspect of the invention a dispensing machine comprises at least one deformable container for product, a plunger arranged to engage one end of the container and the container having an opening at the other end for discharge of the product from the container upon operation of the plunger, sealing means for the opening, a housing part for the container whereby the container is releasably mounted in the machine, the housing part being attached to the sealing means, and a machine frame supporting the ho
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Bomberg Kenneth
Kashnikow Andres
Unice International Limited
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