Food or edible material: processes – compositions – and products – Processes – Treatment or preparation of farinaceous dough – batter – or...
Reexamination Certificate
1999-07-27
2001-01-09
Yeung, George C. (Department: 1761)
Food or edible material: processes, compositions, and products
Processes
Treatment or preparation of farinaceous dough, batter, or...
C426S501000
Reexamination Certificate
active
06171628
ABSTRACT:
BACKGROUND OF INVENTION
1. Field of Invention
This invention relates to a method and apparatus for rolling up a sheet of dough for bread, a piece of confectionery, etc. Particularly, it relates to a method and apparatus for rolling up a piece of a dough sheet, for example, for croissants, and a piece of a dough sheet on which fillings such as sausages, pieces of cheese, pieces of chocolate, creamy materials, jam, etc. are put.
2. Prior Art
There are many prior-art apparatuses for rolling up a sheet of dough. For example, one such prior-art apparatus is provided with a conveyor belt above which a plate or a belt is positioned so that a space is kept between them. When a sheet of dough is passed through the space, it is rolled up.
When a sheet of dough for a croissant is rolled up, its base is put on the conveyor to face in the front direction, and to intersect with the feeding direction of the conveyor, at right angles. Then, the apparatus starts rolling up the sheet from the base side. However, the sheet may not be completely rolled up due to its characteristics. As a result, the sheet may be loosely rolled up. It may not be rolled up at all, but may be deformed when it passes through the roll-up roller. Also, it may be unevenly rolled up across its entire width. Thus, a device has been made to prevent such a dough sheet from being loosely rolled up (see Japanese Patent Laid-open No. 61-271930 and No. 63-22132). Also, another device has been made to prevent just a part of a sheet from being loosely rolled up (see Japanese Patent Laid-open No. 62-61533).
As stated above, some devices are used in prior-art apparatuses. However, they do not make a tight core of a roll when they start rolling up a sheet of dough. Thus, they cannot firmly roll up the sheet of dough, so that they still do not overcome the disadvantages in the prior-art apparatuses.
Also, no apparatus has been made to roll up a sheet of dough on which solid pieces are put.
Also, in prior-art apparatuses some elements have to be adjusted or replaced by other elements, according to the thickness of a sheet of dough and/or the diameter of a roll, so that the apparatuses are expensive.
SUMMARY OF INVENTION
To overcome the disadvantages of the piior-art apparatuses, this invention is provided. One object of it is to provide a method for rolling up a sheet of dough comprising the steps of feeding the sheet by means of a conveyor, rotating a roll-up roller in the direction that is opposite to the feeding direction of the conveyor, the roll-up roller being positioned above the conveyor, feeding the sheet to the roll-up roller, starting rolling up the sheet with the roll-up roller by kicking upward the end of the sheet, the end being toward the downstream direction of the conveyor, and rolling up the sheet by the rotation of the roll-up roller and the feeding of the conveyor.
Another object of this invention is to provide an apparatus for rolling up a sheet of dough comprising a conveyor to feed the sheet and a roll-up roller, the roll-up roller being positioned above the conveyor and being rotated in the opposite direction to the feeding direction of the conveyor.
Also, another object of this invention is to provide an apparatus for rolling up a sheet of dough comprising a conveyor to feed the piece, a roll-up roller, the roll-up roller being positioned above the conveyor and being rotated in the opposite direction to the feeding direction of the conveyor, and a driving means to rotate and support the roll-up roller such that the roll-up roller can move up and down.
The driving means of this invention can include an internal gear formed on the inner surface of the roll-up roller, a pinion gear that is made to mesh with the internal gear, and a roller to shift the roll-up roller such that the axis of the pinion gear is positioned above that of the roll-up roller in the feeding direction.
The roller of this invention is positioned above the roll-up roller in the feeding direction, and can contact the surface of the sheet. Also, the roll-up roller is held by rollers.
The roll-up roller can swing around a point that is above the axis of the roll-up roller so that the roll-up roller can move up and down.
REFERENCES:
patent: 2173632 (1939-09-01), Peters
patent: 4741263 (1988-05-01), Ueno et al.
patent: 4828862 (1989-05-01), Svengren et al.
patent: 4905583 (1990-03-01), Hayashi
patent: 4994293 (1991-02-01), Hayashi
patent: 5738896 (1998-04-01), Cassetta et al.
patent: 62-61533 (1987-03-01), None
patent: 63-51653 (1998-10-01), None
patent: 63-52858 (1998-10-01), None
Limbach & Limbach L.L.P.
Rheon Auotomatic Machinery Co., Ltd
Yeung George C.
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