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CA1128719A Expired / Lapsed CA ⏱️ 0.0 years remaining

Method and apparatus for processing fish in the region of their gill cavities

Assignee: Nordischer Maschinenbau Rud Baader GmbH and Co KG
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Filing: 1980-02-14
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Granted: 1982-08-03
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Expires: 2000-02-14
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Abstract

Abstract ABSTRACT OF THE DISCLOSURE: A method and an apparatus for processing fish in the region of their gill cavities, commonly also called throating or gulletting, is described. An unthroated fish is pushed onto a spike - shaped gulletting tool arranged above and transverse to a fish conveying path, whereby the skin ex-tending between the last gill arches and the collar bones is pierced. The gulletting tool is provided on its upper side with a cutting edge and associated with a downwardly movable loading arm situated in its rest position approximately parallel to the spike and having a free end which is situated in the vicinity of the lower edge of the gulletting tool. Upon completion of the piercing action, the fish moved downwardly in the conveyor path by engagement with the gill cavity side of its back bone by the loading arm, and the skin and the isthmus of the fish are severed. The fish may then be processed furhter, e.g. fed to a filletting machine.

Inventors

  • 👤 Alfred Bartels

Bibliographic Details

Application Number —
Jurisdiction CA
Data Source google_patents
Last Synchronized 2026-11-09 20:53
CPC Classifications
A; A22; A22C; A22C25/00; A22C25/08

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 83 words
Method for processing of fish in the region of their gill cavities and feeding them into a conveyor path of a gutting machine, wherein each fish is pushed onto a spike to a position above the fish conveyor path piercing the skin extending between the last gill arches and the collar bones and is then moved downwardly in the conveyor path by engagement with the gill cavity side of its back bone whilst the skin and the isthmus of the fish are severed.
Claim 2
Dependent Claim 83 words
Method for processing of fish in the region of their gill cavities and feeding them into a conveyor path of a gutting machine, wherein each fish is pushed onto a spike to a position above the fish conveyor path piercing the skin extending between the last gill arches and the collar bones and is then moved downwardly in the conveyor path by engagement with the gill cavity side of its back bone whilst the skin and the isthmus of the fish are severed.
Claim 3
Dependent Claim 130 words
Apparatus for processing of fish in the region of their gill cavities and feeding them into a conveyor path of a gutting machine, said apparatus having a conveying path for the fish and engaging members movable along it for the conveying engagement with the head ends of the fish, wherein a gulletting tool is fixedly arranged above and transverse to said conveying path, said gulletting tool having a cantilevered spike which is provided at its end with a point and on its upper side a cutting edge and being associated with a loader which comprises a downwardly movable loading arm situated in its rest position approximately parallel to the spike and at least the free end of which is situated in the vicinity of the lower edge of said spike.
Claim 4
Dependent Claim 130 words
Apparatus for processing of fish in the region of their gill cavities and feeding them into a conveyor path of a gutting machine, said apparatus having a conveying path for the fish and engaging members movable along it for the conveying engagement with the head ends of the fish, wherein a gulletting tool is fixedly arranged above and transverse to said conveying path, said gulletting tool having a cantilevered spike which is provided at its end with a point and on its upper side a cutting edge and being associated with a loader which comprises a downwardly movable loading arm situated in its rest position approximately parallel to the spike and at least the free end of which is situated in the vicinity of the lower edge of said spike.
Claim 5
Dependent Claim 32 words
Apparatus according to claim 2, wherein said loader is provided with means by which its loading arm is moved downwardly in synchronism with the passage of said engaging members of said conveyor.
Claim 6
Dependent Claim 23 words
Apparatus according to claim 2, wherein said loading arm has on its underside a recess lying in the middle of said conveying path.
Claim 7
Dependent Claim 21 words
Apparatus according to claim 4, wherein said recess on the underside of said loading arm is formed as a cutting edge.
Claim 8
Dependent Claim 28 words
Apparatus according to claim 2, wherein said cutting edge of said spike has a notch in the form of a recess over the middle of said conveying path.
Claim 9
Dependent Claim 20 words
Apparatus according to claim 2, wherein said spike is upwardly offset on its underside in the region of its point.
Claim 10
Dependent Claim 28 words
Apparatus according to claim 2, wherein a neck rest is fixedly positioned beneath said point of the spike on which the back side of the fish may rest.
Claim 11
Dependent Claim 21 words
Apparatus according to claim 8, wherein said neck rest is arranged so that its spacing from the conveyor path is adjustable.
Claim 12
Dependent Claim 11 words
Apparatus according to claim 3, wherein said means are pivoting means.

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