Foods and beverages: apparatus – Edible laminated product making apparatus – Means forming or reshaping plural sheets or webs
Reexamination Certificate
2001-02-09
2001-07-24
Simone, Timothy F. (Department: 1761)
Foods and beverages: apparatus
Edible laminated product making apparatus
Means forming or reshaping plural sheets or webs
C099S353000, C099S450100, C425S092000, C425S115000, C425S237000, C425S321000, C425S325000, C425S362000
Reexamination Certificate
active
06263788
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a food processing machinery and particularly an extrusion apparatus for processing food.
Various types of food processing machinery are available on the market for producing different types of food.
FIG. 1
illustrates a commonly used extrusion apparatus
2
for producing dough. It has a funnel
1
at the top for holding dough to be processed and a plurality of rollers
4
located below the funnel
1
to form a squeezing space
2
. The rollers
4
are driven by a motor to squeeze the dough dropping down from the funnel
1
. The squeezed dough is carried away by a conveyer located below the rollers
4
. The rollers
4
usually are formed in cylindrical shapes and have smooth peripheral surfaces. The dough held in the squeezing space is being extruded between the rollers by constant and even force and lots of air is squeezed out of dough. The resulting squeezed dough becomes a relatively hard slat with little resilience. Food produced by such a dough do not have desirable taste. There is still rooms for improvement.
SUMMARY OF THE INVENTION
It is therefore an object of this invention to provide an improved food extrusion apparatus that has a plurality of equally spaced teeth formed at the peripheral surface of the rollers so that the dough will be squeezed between the rollers at a smaller area thereby to reduce the stress transferred from the rollers. As a result, the produced dough will have desirable resilience and keep more air inside dough and may produce more tasteful food.
Another object of this invention is to provide a food extrusion apparatus that has adjustable roller number for processing different quantity of dough whereby to increase processing speed.
To attain the foregoing objects, the extrusion apparatus according to this invention includes a main boy which has two or more rollers to form a squeezing space therebetween. There is a funnel located at the top end of the main body above the squeezing space for holding and feeding the dough to be processed. And there is a conveyor located at the bottom end of the main body below the squeezing space for transporting the processed dough. The rollers have teeth formed at the peripheral surface so that the dough fed into the squeezing space during the process will be squeezed to form a plurality of troughs which will result in less dough surface subject to the roller squeezing force and consequently reduce the stress transferred from the rollers to the dough and the dough have more space. There is a pair of smooth rollers at the bottom end of the main body to extrude the dough to a smooth slat for producing finished food products. The dough thus formed has resilience desired. The resulting finished food products will have more air inside and have better texture and taste.
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patent: 5098273 (1992-03-01), Tashiro
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patent: 5190770 (1993-03-01), Tashiro
patent: 5290577 (1994-03-01), Tashiro
Bacon & Thomas PLLC
Simone Timothy F.
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