Butchering – Deboning
Reexamination Certificate
1999-04-28
2001-02-27
Little, Willis (Department: 3643)
Butchering
Deboning
C452S082000, C452S085000
Reexamination Certificate
active
06193594
ABSTRACT:
The present invention relates to a device for extraction of bones from fish by means of a number of movable gripping means which are moving influenced to be driven along a course for controlled pressing of fishbones against a counterstay, wherein said gripping means are guided.
A through EP 0 567 515 B1 known apparatus for extraction of fish bones relates to a rotating bone press member which catches the fish bones by co-operation with a counterstay which is curved following the circumference shape of the rotating press member. The bones are gripped with the same pressing force independent of the kind of fish from which the bones are extracted. The angle at which the bones are extracted is thereby also large which might imply that the bones risk being broken when being pressed at such a large angle.
By means of SE patent application NO. 9501034-4, an apparatus is also known for extracting bones from fish by means of a number of pivotally moving gripping means which are moving influenced to be driven along a course For controlled pressing of fishbones against a counterstay with said gripping means guided along a straight distance plate, however without being able to achieve the desired pressing force between the gripping means and the counterstay. The pressing force will be what it will be if you do not carefully e.g. vary the size of the counterstay.
The main object of the present invention is therefore primarily to solve said problem with efficiently functioning means.
Said object is achieved with an apparatus according to the present invention, which is in the main characterized in that said gripping means are articulated via bearing shafts pivotally connected to a drive chain or a wheel to be positively forced to pivot with one of its ends around the bearing, that a guide consisting of a channel is arranged to guide the pivoting movement of said gripping means Dy co-operation with a member upon it, during the period which the drive apparatus is influenced to move in the direction of travel and that the shape of the channel is selected to be able to co-operate with a member of the gripping means, such as a shaft which is connected to it, wherein the gripping means are influenced to be guided by the channel to co-operate with the counterstay for achieving the desired pressing force between the gripping means and the counterstay.
REFERENCES:
patent: 2268581 (1942-01-01), Fisher
patent: 2618811 (1952-11-01), Fisher
patent: 5196021 (1993-03-01), Kabla
patent: 5911621 (1999-06-01), Durst et al.
patent: 0147285 (1985-07-01), None
patent: 2425822 (1979-12-01), None
patent: 467904 (1992-10-01), None
patent: 95010344 (1996-09-01), None
Little Willis
Orum & Roth
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