Patent US3925846A successfully refreshed from Google Patents.
US3925846A
Expired / Lapsed
US
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Method of removing the hard and soft roe sacks, respectively, from fishes and apparatus for carrying out this method
Assignee: Arenco KM AB
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Filing: 1974-02-07
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Granted: 1975-12-16
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Expires: 1994-02-07
Abstract
Abstract A method of removing the hard and soft roe sacks, respectively, from fishes comprises the following steps. Firstly, the head of the fish is severed by a preferably V-shaped cut. Secondly, the belly of the fish is cut up in the longitudinal direction of the fish, the roe sacks of the fish being prevented from engagement with the edge of the cutting tool. Subsequently, pressure is applied against the two opposite sides of the fish within an initially narrow region, which is located between the longitudinal central lines of the roe sacks and the upper contour of these sacks. This region of pressure is successively displaced and/or widened downwards, whereby the roe sacks are successively squeezed out through the opening in the belly of the fish. Finally, the roe sacks are removed.
Inventors
- 👤 Leif Leander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:57
CPC Classifications
A; A22; A22C; A22C25/00; A22C25/14
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
244 words
Apparatus for removing the hard and soft roe sacks, respectively, from a fish, comprising a. a head severing station including means for severing the head of the fish by a V-shaped cut, the legs of which extend transversely of and at acute angles to the longitudinal direction of the fish; b. a belly cutting station which comprises an edged cutting tool for cutting the belly of the fish in its longitudinal direction, and protective means for preventing engagement of the hard and soft roe sacks, respectively, with the edge of the cutting tool; c. a hard and soft roe sack, respectively, squeezing out station comprising compressing means which are located for substantially symmetrical engagement with the sides of the fish and are pressable against aN initially narrow area of said fish located between the longitudinal central lines of the hard and soft roe sacks, respectively, and the upper contour of said sacks, and means for successively displacing said compressing means downwards towards the belly of the fish, for successively squeezing out of the hard and soft roe sacks, respectively, through the opening cut in the belly of the fish; d. a separation station including means for removing the dependent hard and soft roe sacks, respectively; and e. transport means for advancing the fish first substantially perpendicular to its longitudinal direction through the head severing station and then substantially in the longitudinal direction of the fish through the subsequent stations, in the order stated above.
Claim 2
Dependent Claim
244 words
Apparatus for removing the hard and soft roe sacks, respectively, from a fish, comprising a. a head severing station including means for severing the head of the fish by a V-shaped cut, the legs of which extend transversely of and at acute angles to the longitudinal direction of the fish; b. a belly cutting station which comprises an edged cutting tool for cutting the belly of the fish in its longitudinal direction, and protective means for preventing engagement of the hard and soft roe sacks, respectively, with the edge of the cutting tool; c. a hard and soft roe sack, respectively, squeezing out station comprising compressing means which are located for substantially symmetrical engagement with the sides of the fish and are pressable against aN initially narrow area of said fish located between the longitudinal central lines of the hard and soft roe sacks, respectively, and the upper contour of said sacks, and means for successively displacing said compressing means downwards towards the belly of the fish, for successively squeezing out of the hard and soft roe sacks, respectively, through the opening cut in the belly of the fish; d. a separation station including means for removing the dependent hard and soft roe sacks, respectively; and e. transport means for advancing the fish first substantially perpendicular to its longitudinal direction through the head severing station and then substantially in the longitudinal direction of the fish through the subsequent stations, in the order stated above.
Claim 3
Dependent Claim
101 words
Apparatus according to claim 1, in which said head severing means comprises a pair of rotatable circular knives disposed in vertical planes which intersect to form a V whose legs extend forwardly at said acute angles to said longitudinal axis to sever the head of the fish by said V-shaped cut, whereby the front portion of said cut, located nearest to the apex of the V, passes through the back, the head and the belly side of the fish and the rear portions of which, located remote from the apex of the V, pass through two opposite sides of the fish.
Claim 4
Dependent Claim
43 words
Apparatus according to claim 1, wherein said belly cutting station further comprises a fish support wheel having a V-shaped groove in the circumference thereof and wherein said edged cutting tool is a circular knife projecting upwardly from the bottom of said V-shaped groove.
Claim 5
Dependent Claim
49 words
Apparatus according to claim 3, in which said belly cutting up station further comprises protective means including a covering rail for covering a portion of the circumference of the knife edge for preventing engagement between said knife edge and the hard and soft roe sacks, respectively, of the fish.
Claim 6
Dependent Claim
36 words
Apparatus according to claim 1, in which said compressing means of said squeezing out station comprises at least one pair of longitudinally extending, substantially wedge-shaped rails which converge in the direction of advancement of the fish.
Claim 7
Dependent Claim
26 words
Apparatus according to claim 5, further comprising a second pair of said rails spaced from said first pair in the direction of advancement of the fish.
Claim 8
Dependent Claim
29 words
Apparatus according to claim 1, in which said compressing means comprises at least one pair of spaced apart rotatable rollers for pressing against the opposite sides of a fish.
Claim 9
Dependent Claim
29 words
Apparatus according to claim 7, in which the pairs of rollers are two in number and are spaced from each other in the direction of advancement of the fish.
Claim 10
Dependent Claim
43 words
Apparatus according to claim 8, in which the pair of rollers disposed for later engagement with the fish during the advancement thereof, have a greater height, as measured in the direction of their respective rotational axes, than the rollers of the other pair.
Claim 11
Dependent Claim
56 words
Apparatus according to claim 8, in which the two pairs of rollers are arranged below the means for advancing the fish, and in which the rollers of that pair of rollers, disposed for later engagement of said fish are located further below the means for advancing the fish than are the rollers of the other pair.
Claim 12
Dependent Claim
43 words
Apparatus according to claim 8, further comprising a pair of endless belts, each of which runs over one roller from each of the pairs of rollers, and means for pressing each of said belts against one of the two sides of the fish.
Claim 13
Dependent Claim
38 words
Apparatus according to claim 1, wherein said separation station comprises a pair of cooperating, rotatable circular knives for cutting loose the hard and soft roe sacks, respectively, hanging down through the opening in the belly of the fish.
Claim 14
Dependent Claim
181 words
Method of removing the hard and soft roe sacks, respectively, from fishes, comprising the following steps in the order set forth below: a. severing the head of the fish by a cut in the shape of a V, the legs of which extend transversely of and at acute anglEs to the longitudinal direction of the fish; b. cutting up the belly of the fish in the longitudinal direction of the fish by an edged cutting tool while preventing engagement of the hard and soft roe sacks, respectively, with the edge of the cutting tool; c. applying pressure, substantially symmetrically, against the two opposite sides of the fish in an initially narrow region located between the longitudinal central lines of the hard and soft roe sacks, respectively, and the upper contour of these sacks, and progressively shifting the center of said region downwardly towards the belly of the fish, for successive squeezing out of the hard and soft roe sacks, respectively, through the opening cut in the belly of the fish; and d. removing the dependent hard and soft roe sacks, respectively.
Claim 15
Dependent Claim
181 words
Method of removing the hard and soft roe sacks, respectively, from fishes, comprising the following steps in the order set forth below: a. severing the head of the fish by a cut in the shape of a V, the legs of which extend transversely of and at acute anglEs to the longitudinal direction of the fish; b. cutting up the belly of the fish in the longitudinal direction of the fish by an edged cutting tool while preventing engagement of the hard and soft roe sacks, respectively, with the edge of the cutting tool; c. applying pressure, substantially symmetrically, against the two opposite sides of the fish in an initially narrow region located between the longitudinal central lines of the hard and soft roe sacks, respectively, and the upper contour of these sacks, and progressively shifting the center of said region downwardly towards the belly of the fish, for successive squeezing out of the hard and soft roe sacks, respectively, through the opening cut in the belly of the fish; and d. removing the dependent hard and soft roe sacks, respectively.
Claim 16
Dependent Claim
28 words
Method according to claim 13, in which the dependent hard and soft roe sacks, respectively, are cut away, preferably together with the side walls of the fish belly.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |