Chemical apparatus and process disinfecting – deodorizing – preser – Physical type apparatus – Apparatus for treating solid article or material with fluid...
Patent
1986-10-17
1989-03-28
Richman, Barry S.
Chemical apparatus and process disinfecting, deodorizing, preser
Physical type apparatus
Apparatus for treating solid article or material with fluid...
422292, 422304, 19880314, A61L 202
Patent
active
048162310
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a cassette in a transport device for products which are to be processed by heat treatment under well controllable forms. Products of specific interest in this context are such that require heat stabilization for obtaining an extended shelf-life, for instance food products or pharmaceutical compositions.
The term heat stabilization is thought to involve a number of general processes as sterilization, pasteurization, cooling, etc.
The type of heat stabilization thought of at a first hand in this context comprises known concepts for refining and improving the efficiency of general processes.
BACKGROUND OF THE INVENTION
In the stabilization process there for instance may be included a method for a fast pre-heating to a temperature distribution in the product suited for a microwave treatment. A two-step process comprising a contact with a hot medium directly followed by a contact with a cooler medium does in this case precede the microwave treatment.
It is also possible to adjust the temperature profile in advance such that the microwave treatment gives a uniform temperature profile within the product.
A further possibility is to carry out the microwave treatment in water or other liquid and in such case control the water temperature so that the tendency of increased surface temperature is suppressed.
A heat stabilization according to the present concept implies a qualified process technology and it is of utmost importance that the physical conditions for the stabilization/process are the proper ones.
The problem of the invention is to provide a device that allows a sophisticated process handling of products packed in a flexible packaging material. It should for instance be prevented that the product dissipates vapour and expands (blows up) and it is also necessary to transport the product into and out from a pressurized zone. Furtheron, it is of importance to get a uniform, fast heating whereby a uniform maximum thickness of the product is especially important for products lacking specific form as stews and for products that tend to change their form when heat treated, for instance slices of meat. It is also of importance that the end product obtained in the system is a product which is suited for rational packaging and cartonning systems.
OBJECT OF THE INVENTION
The object of the invention is to offer a cassette which surrounds the product and meets the several requirements according to the definition of the problem.
SUMMARY OF THE INVENTION
The invention provides a cassette to be used in a conveyor device for products, preferably food stuff and pharmaceutical compositions, which are to be heat stabilized. The cassette is distinguished by comprising a thin, broad-sided and broken through casing having an openable cover of a broken through type, and in that the casing and cover are interconnected at a plurality of hinge locations along one side of the cassette adn are connectable to each other at a plurality of locking locations along one opposite side of the cassette such that the casing and cover, in spite of the broken through structure, forms a rigid and strong unit when the cover is closed.
In one embodiment of the invention the casing and cover comprise a network of thin ribs.
In one embodiment the cover is shearable in the plane thereof and hook-shaped elements on the cover are engageable with the casing.
In another embodiment of the invention the cover is shearable and hook-shaped elements on the casing are engageable with the cover.
The hook-shaped elements preferably are arranged to grip around locking shoulders of the casing or cover.
Preferably each one of the hook-shaped elements has a cut out which surrounds a substantial part of the locking shoulder.
In another embodiment of the invention the cover is locked at a plurality of locking locations by a slider.
Preferably the cassette is such that the sides thereof in the transport direction are solid and provided with ears which allow the cassettes to be joined into a strain resistant
REFERENCES:
patent: 3970188 (1976-07-01), Smorenburg
patent: 4385035 (1983-05-01), Akitoshi et al.
patent: 4541992 (1985-09-01), Jerge et al.
patent: 4547343 (1985-10-01), Takano et al.
Lindstrom Bjorn
Stenstrom Lennart
Wahlstrom Lennart
Alfastar AB
Johnston Jill
Richman Barry S.
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