EP0080427B1 - Gerät zum Öffnen von Austern oder anderen ähnlichen zweischaligen Muscheltieren - Google Patents

Gerät zum Öffnen von Austern oder anderen ähnlichen zweischaligen Muscheltieren Download PDF

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Publication number
EP0080427B1
EP0080427B1 EP82440038A EP82440038A EP0080427B1 EP 0080427 B1 EP0080427 B1 EP 0080427B1 EP 82440038 A EP82440038 A EP 82440038A EP 82440038 A EP82440038 A EP 82440038A EP 0080427 B1 EP0080427 B1 EP 0080427B1
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EP
European Patent Office
Prior art keywords
handle
blade
tool according
oyster
valves
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82440038A
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English (en)
French (fr)
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EP0080427A2 (de
EP0080427A3 (en
Inventor
Léon Couche
Daniel Lacourt
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Individual
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Individual
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Publication date
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Priority to AT82440038T priority Critical patent/ATE19587T1/de
Publication of EP0080427A2 publication Critical patent/EP0080427A2/de
Publication of EP0080427A3 publication Critical patent/EP0080427A3/fr
Application granted granted Critical
Publication of EP0080427B1 publication Critical patent/EP0080427B1/de
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G21/00—Table-ware
    • A47G21/06—Combined or separable sets of table-service utensils; Oyster knives with openers; Fish servers with means for removing bones
    • A47G21/061—Oyster knives with openers; Shellfish openers
    • A47G21/062—Oyster splitters working by forcing a knife or the like between shells
    • A47G21/065—Hand tools, e.g. shucking knives

Definitions

  • the present invention relates to the opening of oysters or other similar bivalve shell molluscs for consumption.
  • the instruments of the first category derived from the knife for flaking, are used to dislodge and then to separate the valves using a blade that is tried to forcefully push into the joint to reach the muscle.
  • the common commercial utensils such as knives with a broad and pointed blade, provided, at the right of the working end of the handle, with a guard for protection against slipping of the blade on the shell.
  • the guard only properly protects the hand which holds the knife and which in any case risks only scratches when coming into contact with the shell, unlike the other hand which, holding the oyster, is exposed directly to the knife blade.
  • the blade is slidably mounted in the handle, out of which only the tapered end protrudes at rest.
  • the guard then retracts into the handle by resting on the shell as the blade progresses inside the oyster under the operator's push.
  • the instruments of the second category proceed, no longer by spacing the valves, but by removing a portion of the shell in order to provide an opening through which a cutting element is then introduced to cut the muscle.
  • the material can be removed, either by cutting the end opposite the heel using pliers (French patent application n ° 1536939), or by punching a pellet on the upper flat valve. in the immediate vicinity of the muscle using a tubular punch in which slides a sectioning wire by rotation (French patent applications No. 2173803 and 2383635).
  • devices are known common to the two aforementioned categories in that they intervene by dislodging and spacing of the valves in the vicinity of the muscle using a penetrating organ distinct from the sectioning element of the muscle.
  • This device has a chassis comprising an oyster support receptacle and a block mounted to slide on the chassis.
  • the block is provided with an extensible blade intended to be introduced into the half-opening of the shells obtained by means of a dislocated wedge shaped bevel, fixed to the block and intended to be forced into the joint with the opposite end to the oyster's heel.
  • Such a device is less a “general public” utensil than a machine that can be used in a fixed position, almost entirely mechanized, complex, heavy and bulky.
  • Another device of this type consists of a handle equipped with a working head provided with a short blade disposed next to a motorized conical spin. As the instrument is brought closer to the oyster, the spin ensures the progressive spacing of the valves during its introduction, while the blade, slightly back, cuts the muscle. In fact, this instrument somehow combines the respective disadvantages of the two categories mentioned above.
  • the spinning tendril which penetrates inside the oyster can bring with it fragments torn off on the edges of the valves and, likewise, disintegrate the edible body, thus rendering it unfit to be eaten, or at least meet the oyster presentation criteria demanded by consumers.
  • the spin motor, as well as the transmission members are placed inside the handle, so that it constitutes more of a protective casing than a grip handle capable of meeting the ergonomic criteria attached to such a qualifier.
  • Another goal is to achieve a robust, reliable, simple design and low cost.
  • Yet another object is to provide inexperienced people with a means of opening oysters which is easy to handle, associated with a simple operating mode.
  • the invention relates to a utensil for opening oysters, or other similar bivalve shell molluscs, comprising a gripping handle of elongated shape, equipped at one end with a working head provided, d on the one hand, of a member for disengaging and spacing the valves by the heel of the shell constituted by a tip having a base implanted in the handle and a free part whose end is tapered and pointed and, on the other part, of a sectioning element of the muscle constituted by a cutting member, such as a blade, retractable in the handle and sliding, at least at the point of the end piece, at a level located between the base and the pointed end of it.
  • the free part of the end piece has, in profile, a curved shape, directed upwards.
  • the pointed end of this free part is bent towards the horizontal.
  • the free part at least has, in section, a concave shape.
  • the blade is assisted by a return spring exerting a force which tends to keep it retracted in the handle, said spring preferably being housed in a pusher provided on the blade.
  • the invention is based on the idea of opening the oyster according to an original operating mode, in which two distinct means participate, intervening one after the other. to ensure respectively and chronologically the dislocation and the spacing of the valves then the sectioning of the retaining muscle.
  • the disengagement and spacing member is fixed while the sectioning means is movable, in a longitudinal translational movement.
  • the operating mode in which the utensil according to the invention was specially designed, consists in dislodging the oyster by its heel and not in penetrating it laterally, in the vicinity of the muscle, as logically suggests a first approach to the problem and like the preco denies, moreover, most of the known solutions.
  • the inventors have realized, in fact, that the heel, despite the apparent robustness of the oyster in this place, constitutes in fact the point of greatest vulnerability of the shell and this due to the existence, at the level of the valve joint, of a natural slit necessary for its proper functioning.
  • the tapered shape of the end of the tip has been specially designed to be able to pass through this slot and engage without significant effort in the joint by at least partially destroying the ligaments.
  • the desired spacing is then effected by a simple and easy movement of tilting the handle from top to bottom relative to the oyster and, in the opening thus formed, the blade leaving the handle cuts the muscle passing between the tip and base of the tip.
  • the blade must be both long enough to reach the muscle from the heel and short enough, so as not to obstruct the engagement of the tip in the heel slot.
  • this blade slide in the handle since the latter, being dimensioned to ensure good grip on the part of the operator, has a length which is largely compatible with even a very large stroke of the blade.
  • such an arrangement allows the operator to adjust the useful stroke of the blade as necessary, depending on the size of the oyster to be opened.
  • the upward curvature of the free part of the endpiece is produced, inter alia, so that the blade, passing between the point and the base of the tip, easily penetrates the oyster between the valves kept apart by the tip and reaches the muscle at a height level which depends on the degree of tilting that is printed on the handle when the heel is dislodged.
  • the endpiece is of concave shape in cross section.
  • the effect of such an arrangement is to facilitate penetration, by conforming to the semi-circular shape which characterizes the slit at the location of the valve articulation ligaments.
  • the concavity of the end piece contribute to reinforcing its mechanical resistance, which must necessarily be of good quality, because the end piece, acting as a lever during the spacing of the valves, is therefore found subject to relatively large bending stresses.
  • the concavity allows the mouthpiece to play a receptacle role in which the various debris and dirt inevitably present in the articulation slot of the oyster gather.
  • the end piece according to the invention is a means of dislodging and spacing the valves which, unlike known means (in particular the rotary spin mentioned at the beginning), does not penetrate inside the oyster, but remains on the periphery of the cavity housing the edible body.
  • the utensil according to the invention used in accordance with the operating method which is closely associated with it, is of a nature to allow the opening of oysters in optimal conditions of ease, safety and cleanliness.
  • the working head also has an extension in the extension of the handle, either on one side of the nozzle or on the other (depending on whether the utensil is intended for right-handed or left-handed) more advantageously on both sides.
  • this projection extends parallel to the nozzle.
  • This advance is intended to come into abutment against the palm of the hand holding the oyster and thus provide the operator with both great maneuvering precision in the engagement phase of the toe in the heel slot and a total control of the effort to be exerted.
  • FIGS. 1 illustrating a first variant embodiment.
  • the complete description which will be given thereof will make it possible to limit the description of the other variants to their particular aspects which differentiate them from each other or with respect to this first variant.
  • the oyster-opening utensil according to the invention comprises an elongated straight handle 1 which is thick enough to ensure good manual grip. This handle is equipped at one end with a working head 2 for opening the shell.
  • the working head is provided with: a metal tip 3 centered on the axis of the handle, symbolized at 4; a blade 5 retractable in the handle and slightly offset to the right of the end piece (when looking at the utensil from above); a lower transverse tongue 7 slightly recessed and a projection in the extension of the handle, consisting of two branches 6 and 6 'on either side of the nozzle.
  • the tip 3 of concave shape is firmly anchored in the handle by its base 3A, Its free part 3 B , bent upwards and tapering up to its tapered and pointed end 3 c , gives it a general shape reminiscent of a beak.
  • the two lateral branches 6 and 6 ′ extend the handle forward by moving away from their base by a distance at least equal to the width of the heel of the shell so as to be able to engage the working head around it and thus allow the introduction of the tip.
  • These branches are also bent upwards by matching the curvature of the endpiece 3 ( Figure 1d) so that it does not exceed the limits of the volume defined by the branches between them.
  • Their end has, moreover, a rounded shape, to come, one or the other, pressing against the hand holding the oyster while allowing sustained pressure without risk of injury.
  • this guard makes it possible, without penalizing the operator's visibility, to "mask the tip of the mouthpiece, so that any injury to the hand holding the oyster is practically excluded, and this even if there is shifting of the nozzle on the shell, following an error in maneuver, are possible.
  • curvature of the tip also contributes to limiting the risk of injury.
  • This curved shape is, therefore, in itself an accessory means of protection which advantageously completes the purely functional character of the end piece.
  • the lower transverse tongue 7 has been provided as a protective guard for the hand holding the handle. It further defines, with a second tab 8 provided at the other end of the handle, a location for the operator's hand in optimal grip and safety conditions.
  • the blade 5 is actuated by a pusher 9 sliding on the upper part of the handle hollowed out for this purpose.
  • the pusher is formed by a simple folding of the blade 5.
  • the latter is visible from above and slides flat on the bottom of a recess corridor 10, wide and shallow, whose blanks 11, 11 ′ advantageously serve as guide ramps for the thumb of the hand which drives the pusher.
  • the blade is extended at the rear of the pusher by an enlarged range 12, the edges of which, engaged in the grooves 13, 13 'formed for this purpose at the base of the blanks 11, 11', provide both translation of the mobile assembly and its maintenance in position in the bottom of the corridor 10.
  • the blade is provided with a cutting edge 14 on the inner edge only to reduce the risk of injury.
  • its end is rounded in shape.
  • the latter also has a small boss 15 on its upper face, the use of which will appear subsequently, with reference to FIGS. 2.
  • the blade 5 can be offset to the right or to the left of the end piece 3.
  • the offset to the right is preferable, because the blade can then reach more easily the valve retaining muscle which is precisely on this side.
  • the blade must slide at least in the vicinity of the end piece at a level passing between the base 3A of the end piece and its tip 3 c .
  • the blade slides about 1 cm below the tip 3 c .
  • FIG. 1c This arrangement is illustrated in FIG. 1c, where it can be seen that a light 16, provided in the working end 2 for the passage of the blade 5, is distant from the tip of the endpiece by a distance, noted “h •, about 1 cm.
  • a return spring 17 which tends to keep retracted inside the handle 1.
  • This spring of the "helical” type, is housed in a blind longitudinal cavity 18 formed in the body of the handle and which extends to the immediate vicinity of the base 3A of the mouthpiece.
  • the spring 17 works in compression in a direction opposite to that of the outlet from the blade 5.
  • the spring is biased by a pad 19 connected to the blade 5 by a control wire 20 which passes through axially the spring passing through the opening of the cavity 18 at the rear of the handle.
  • the spring is in fixed abutment on a part 21, in the form of a funnel, added in the opening of the cavity 18.
  • This funnel has a central passage aligned with the axis of the spring 17 for centering the wire 20.
  • This ci joins the rear end of the strip 12 of the blade by marrying the profile of the internal surface of the funnel, the shape of which is determined to impart a curvature to the wire which prevents any jamming and thus ensures correct operation of the blade.
  • the fixing of the wire on the track 12 can be carried out by any suitable means.
  • the example considered shows a fixing by loop 22 (FIGS. 1a and 1b) engaged in the curved end 23 of the area 12.
  • a groove 24 for housing and guiding the wire is provided on the funnel 21 and a closure plate 25 is applied to the rear of the handle against the funnel21.
  • the plate is fixed by a screw 26.
  • the “safety” aspect does not come into play here, since the blade could only be dangerous when the valves were dislodged. However, at this time, the blade 3 is necessarily retracted to allow the introduction of the tip 3 in the heel of the oyster.
  • a third lower tab 27 is provided in the vicinity of the guard 7 and whose facing face of the latter advantageously serves as a retainer for the index finger of the hand holding the handle when the thumb comes to actuate the pusher 9.
  • a hollow oyster has been shown diagrammatically at 28, seen in longitudinal vertical section passing through the heel, designated at 29.
  • the heel of the oyster constitutes a privileged point of approach because the joint of the valves has a natural slit at this point 35 offering free access to the ligament joint 33.
  • the oyster to be opened is held flat in one hand, the hollow valve 31 being in contact with the palm and the heel 29 being directed opposite the thumb.
  • the utensil according to the invention is held by the other hand, the working head being of course directed towards the oyster.
  • the pointed end 3 c of the end piece 3 is then introduced into the slot 35 of the heel according to the position visible in FIG. 2a.
  • the slit may be locally narrowed by a seal due to a protrusion of the upper valve. But it is easy to blow up this cover using the tip 3 c of the nozzle which is introduced into the passage left available.
  • the opening operation using the oyster opener according to the invention is extremely simple.
  • This prominence constitutes a bearing surface for the endpiece which can thus be maneuvered as a lever in a particularly efficient manner.
  • the curved shape of the tip nevertheless has a decisive advantage in that the tip constitutes in this case a lever with evolving action, perfectly adapted to the differentiated needs which arise during the operation of dislocation and spacing of the valves.
  • the curved shape of the end of the endpiece allows it to marry, during its introduction, a nipple 36 of the upper valve on which the ligaments 33 are fixed and which ensures the articulation of the shell in cooperating with a corresponding bowl (not shown) on the lower valve.
  • this nipple should not constitute an obstacle to the passage of the blade 5, it is understood that the latter must slide at a level located below that of the tip 3 c of the nozzle.
  • the blade 5 thus passes in the vicinity of the nipple 36 and the boss 15 provided at its end ensures, if necessary, its sliding on the internal wall of the upper valve.
  • the opening takes place, under these conditions, in an extremely advantageous manner since, on the one hand, the blade practically does not attack the edible body of the oyster and, on the other hand, comes to cut the muscle 34 at its upper part by means of a simple movement of horizontal movement, which can be repeated several times in succession if necessary.
  • the second variant embodiment illustrated in FIGS. 3a and 3b, consists in replacing the compression spring 17 by a tension spring of the type “coiled ribbon spiral 37 with floating axis housed in a chamber 38 formed at the free end of the round 1.
  • the blade plunger, shown at 39, is, this time, an added piece.
  • the pusher 39 has two lower pins 40 and 41 on which the end of the blade 5 and the end of the spring 37 respectively engage, provided with openings for this purpose.
  • This variant has the advantage of minimizing the size of the spring, so that it becomes possible to implant the base of the end piece in the handle 1 as deeply as desired.
  • the choice of a spring of the “wound ribbon” type has the advantage of keeping the force to be exerted on the pusher substantially constant during the output of the blade.
  • FIG. 4 represents the best embodiment that the inventors know how to make at present.
  • the pusher 66 has a cross section in the shape of a "T" designed to slide in the passage 10 of the same shape in the upper part of the handle 1.
  • the base of the pusher which is preferably produced by molding, comprises two cavities: a cavity 67 opening onto the front face and serving as a housing for the blade 5, the other, visible at 68, opening onto the lateral face of the base and serving as a housing for the spring 65.
  • the upper face of the pusher has an ergonomic wavy and ribbed shape to facilitate actuation by the thumb.
  • the return spring 65 is of the “spiral with preformed wound ribbon” type. Its outer end is folded in the opposite direction from the winding to form a small anchoring loop 69 which is housed in a small cavity 70 provided for this purpose at the rear end of the handle at the base of the blank 11 opposite the opening of the housing 68 of the spring.
  • the spring 65 has a small width and its size is slightly less than the volume of its housing 68.
  • the spring 65 is placed flat in its housing, so that its winding axis is vertical. Furthermore, its outer terminal part exits towards the rear end of the handle by passing through a small notch 71 provided for this purpose on the lateral face of the base of the pusher, and connecting the rear face 72 of the latter to the housing 68 .
  • the blade 5 for cutting the muscle advantageously has a small width over its entire length. Its rear end coming to be embedded in the cavity 67 may include sawtooth notches for example, intended to perfect its locking.
  • a closing plate 73 is provided for closing off the rear end of the handle by taking place in a centering counterbore 74. The fixing of the plate is ensured by a screw 75 engaged in the material of the handle.
  • the plate 73 has at its upper end a narrowing 76 wound forward.
  • This part 76 forms a loop which, coming to be housed at the end of the passage 10, serves as a stop for the pusher 66, in particular avoiding any risk of injury.
  • the blade and the tip do not necessarily appear side by side on the working head. It is, in fact, possible to produce a utensil according to the invention in which the blade and the end piece are superimposed, in which case, the blade passes through the end piece in a horizontal slot made for this purpose in the latter.
  • the blade passes through the end piece in a horizontal slot made for this purpose in the latter.
  • the handle can easily be produced by molding plastic material.
  • the different fixed parts projecting from the body of the handle, other than the end piece, can advantageously be molded in manufacturing and in the same material as the handle.
  • the insertion of the base of the nozzle can then be easily carried out using the overmolding technique.
  • the manufacture of the handle can be further simplified.
  • these grooves are mainly intended to clamp the blade to prevent its possible exit from above the handle.
  • the free part 3 B of the end piece is not necessarily curved in longitudinal profile.
  • the utensil according to the invention may in fact include an end piece whose visible part 3 B has a rectilinear bearing generator on the prominence of the heel (see FIG. 2).
  • This visible part, concave or not, can be inclined upward relative to the longitudinal axis of the handle or even in the axial extension thereof.
  • the variant described with reference to FIG. 4 may very well be produced using a return spring 65 installed in the pusher, no longer flat, but vertically (horizontal unwinding axis).
  • the pusher would be larger in height in order to accommodate the spring there.
  • the return spring 65 could be housed in the rear part of the handle, as in the variant illustrated in FIGS. 3, but disposed flat and at the level of the corridor 10, so that its unwound part, anchored in the blade pusher, remains invisible by being pressed against the base of the corridor blank.
  • the characteristic of the invention according to which the blade is assisted by a return spring must be understood as including not only a spring, in the usual meaning of this term, namely a mechanical member with elastic deformation , but any means capable of exerting an antagonistic action, elastic or not, which opposes the movement that is imparted to the blade.
  • a spring of the kind used in the examples described above, therefore represents the means best suited to a device such as an oyster-opening utensil, according to the invention, intended for the general public.
  • the utensil according to the invention used in accordance with the operating mode which is closely associated with it, ensures that the oysters are opened with an efficiency, safety and cleanliness which currently seem unmatched.
  • the retractable blade can be provided with two differentiated cutting edges: a well-sharpened main cutting edge on the inside edge of the blade and a more blunt accessory cutting edge on the outside edge to prevent any possibility of injury.
  • blade used to qualify the retractable organ for cutting the muscle must be understood in its general meaning as a cutting element.
  • this term covers, not only, a blade proper in the usual language, namely an elongated tool, flat, thin and sharp on a bank, but any other functional equivalent, such as a threadlike element, capable of being able slice tender flesh, like that constituting molluscs and in particular the muscles of oysters.
  • the cutting element being a blade (taken here in its usual meaning) that -This has a slight lateral inclination on the horizontal so that, the utensil being seen from above, the right edge of the blade is raised relative to its left edge.
  • This position makes it possible, in fact, during the horizontal pivoting movement intended to cut the muscle by the blade in the fully extended position, to effect this blade movement from the inside of the oyster outwards towards the muscle avoiding obstacles on the inner wall of the shell.
  • the utensil according to the invention is used either by right-handers or by left-handers.
  • the ergonomic shape of its handle provides excellent manual gripping and the simplicity of its handling, which does not require any particular dexterity, puts it within the reach of many.
  • the utensil in this regard, has been designed to leave a certain freedom of initiative to the operator, whose maneuver he will adapt according to the shape and size of the shell he wishes to open.
  • the inventors wanted, in fact, to preserve such a faculty after having found that an oyster (or shell) "type", of shape and size representative of the whole species does not exist, at least as regards the definition of a solution ensuring the opening under the excellent conditions specific to the invention.

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Claims (11)

1. Gerät zum Öffnen von Austern oder anderen ähnlichen zweischaligen Muscheltieren, mit einem Griff (1), der an seinem Ende mit einem Arbeitsvorsprung (2) versehen ist und der eine Anordnung zum Aufklappen der Schalen aufweist, sowie eine Anordnung zum Durchtrennen des Haltemuskels der Schalen, dadurch gekennzeichnet, daß der Griff (1) des Gerätes langgestreckt ist, daß die Anordnung zum Aufklappen der Schalen ein feststehendes Teil zum Eindringen in die und zum Aufklappen der Schalen vom Rücken des Muschelgehäuses her aufweist, das aus einem Stift (3) besteht, mit einem Endabschnitt (3A), der im Griff eingebettet ist, und mit einem freien Abschnitt (3B), der ein sich verjüngendes, zugespitztes Ende (3C) aufweist, und daß die Anordnung zum Durchtrennen des Muskels ein in Längsrichtung verschiebbares Bauteil ist, das aus einem Schneidteil (5), z. B. einer Klinge, besteht, das in den Griff einziehbar ist und in einer Ebene gleitet, welche eine Höhe schneidet, die zwischen derjenigen des Endabschnitts (3A) des Stifts und derjenigen seines Endes (3C) liegt.
2. Gerät nach Anspruch 1, dadurch gekennzeichnet, daß der freie Abschnitt (3B) des Stiftes, im Profil gesehen, eine nach oben abgebogene Form aufweist.
3. Gerät nach Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß der Querschnitt des Stiftes (3) konkavförmig ist und zwar wenigstens in seinem freien Abschnitt (3B) bis zum sich verjüngenden und zugespitzten Ende (3C).
4. Gerät nach Ansprüchen 1, 2 oder 3, dadurch gekennzeichnet, daß das sich verjüngende und zugespitzte Ende (3C) zur Waagrechten hin abgeflacht ist.
5. Gerät nach einem der vorhergehenden Ansprüche,- dadurch gekennzeichnet, daß der Arbeitsvorsprung (2) ebenfalls eine Spitze (6, 6') in Verlängerung des Griffs aufweist, die mit abgerundeten Enden versehen ist, zum Abstützen an der Hand der die Auster Haltenden Bedienungsperson.
6. Gerät nach Anspruch 5, dadurch gekennzeichnet, daß diese Spitze aus zwei Armen (6, 6') besteht, die in der seitlichen Verlängerung des Griffs (1) beiderseits des Stiftes (3) angeordnet sind und zwischen sich einen Abstand aufweisen, der wenigstens gleich der Breite des Rückens der zu öffnenden Auster ist und die gebogene Form des Stiftes (3) derart umgeben, daß dieser nicht aus dem zwischen diesen beiden Armen vorhandenen Raum austreten kann.
7. Gerät nach einem der vorhergehenden Aus-. prüche, dadurch gekennzeichnet, daß die einziehbare Klinge (5) von einer Rückholanordnung beaufschlagt ist, die dazu neigt, sie in der zurückgezogenen Position im Griff (1) zu halten.
8. Gerät nach Anspruch 7, dadurch gekennzeichnet, daß die Klinge (5) mit einem manuellen Schieber (66) versehen ist, der im Griff (1) gleitet und daß die Rückholanordnung eine Spiralfeder (65) ist, die im Schieber angeordnet ist:
9. Gerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Strift (3) und die einziehbare Klinge (5) nebeneinander im Arbeitsvorsprung (2) angeordnet sind.
10. Gerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Griff (1) und der Arbeitsvorsprung (2) mit der Spitze (6, 6') und dem Schutzteil (7) einstückig sind.
11. Gerät nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Klinge (5) eine seitliche Neigung zur Waagrechten derart aufweist, daß bei einer rückwärtigen Ansicht auf das Gerät, der rechte Rand der Klinge (5) höher als der linke Rand ist.
EP82440038A 1981-11-24 1982-11-22 Gerät zum Öffnen von Austern oder anderen ähnlichen zweischaligen Muscheltieren Expired EP0080427B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82440038T ATE19587T1 (de) 1981-11-24 1982-11-22 Geraet zum oeffnen von austern oder anderen aehnlichen zweischaligen muscheltieren.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR8122120 1981-11-24
FR8122120A FR2516775A1 (fr) 1981-11-24 1981-11-24 Ustensile pour ouvrir les huitres ou autres mollusques a coquille bivalve analogue
US06/497,641 US4551886A (en) 1981-11-24 1983-05-24 Oyster-opening tool

Publications (3)

Publication Number Publication Date
EP0080427A2 EP0080427A2 (de) 1983-06-01
EP0080427A3 EP0080427A3 (en) 1983-11-09
EP0080427B1 true EP0080427B1 (de) 1986-05-07

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EP82440038A Expired EP0080427B1 (de) 1981-11-24 1982-11-22 Gerät zum Öffnen von Austern oder anderen ähnlichen zweischaligen Muscheltieren

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US (1) US4551886A (de)
EP (1) EP0080427B1 (de)
JP (1) JPS58141111A (de)
FR (1) FR2516775A1 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6178554B1 (en) 1998-05-01 2001-01-30 Charles W. Pake Hand protector
US6190248B1 (en) 2000-02-16 2001-02-20 James D. Holley Oyster shucker method and apparatus
FR2807305B1 (fr) * 2000-04-05 2003-01-24 Jean Michel Dormoy Couteau a lame retractable controlee pour l'ouverture des coquillages, notamment des huitres
US20070089223A1 (en) * 2001-07-27 2007-04-26 Robert Andersen Closure apparatus and method of installing same
US6438764B1 (en) * 2001-07-27 2002-08-27 Robert A. Andersen Closure apparatus and a method of installing the same
FR2839253B1 (fr) * 2002-05-06 2004-07-30 Jean Christophe Bernard Couteau a huitres
WO2006099439A1 (en) * 2005-03-15 2006-09-21 Bemis Manufacturing Company Self-closing toilet seat
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FR2893491A1 (fr) * 2005-11-22 2007-05-25 Henri Alfred Chavoutier Couteau facilitant l'ecaillage des huitres
CN102711489B (zh) 2009-10-28 2015-10-21 加拿大北大西洋海鲜渔业公司 贝类加工装置和相关方法
NZ588154A (en) * 2010-09-23 2013-03-28 Stl Ltd Shell removal device and automated shellfish opening system with an asymetric leading edge for pivoting and twisting the top shell and a further engagement member for removing the top shell completely.
CN103300123A (zh) * 2013-07-08 2013-09-18 河北农业大学 一种扇贝开壳取贝柱装置
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US10524480B2 (en) 2013-10-22 2020-01-07 David Maestas Method and system for humanely dispatching wounded game
CN104643844B (zh) * 2015-03-25 2016-07-06 朱金凤 一种新型五连体收缩式自动餐具
US9888698B1 (en) * 2017-03-10 2018-02-13 Cassandra Morsell Multifunctional shell-opening utensil
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Also Published As

Publication number Publication date
JPS58141111A (ja) 1983-08-22
US4551886A (en) 1985-11-12
FR2516775A1 (fr) 1983-05-27
EP0080427A2 (de) 1983-06-01
FR2516775B1 (de) 1984-02-03
EP0080427A3 (en) 1983-11-09

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