EP0305713B1 - Ouvre-boîtes électrique - Google Patents

Ouvre-boîtes électrique Download PDF

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Publication number
EP0305713B1
EP0305713B1 EP88111488A EP88111488A EP0305713B1 EP 0305713 B1 EP0305713 B1 EP 0305713B1 EP 88111488 A EP88111488 A EP 88111488A EP 88111488 A EP88111488 A EP 88111488A EP 0305713 B1 EP0305713 B1 EP 0305713B1
Authority
EP
European Patent Office
Prior art keywords
opener
cutter
shaft
operating lever
resilient member
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 - Lifetime
Application number
EP88111488A
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German (de)
English (en)
Other versions
EP0305713A1 (fr
Inventor
Reinhard Kurz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Braun GmbH
Original Assignee
Braun GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Braun GmbH filed Critical Braun GmbH
Priority to AT88111488T priority Critical patent/ATE63290T1/de
Publication of EP0305713A1 publication Critical patent/EP0305713A1/fr
Application granted granted Critical
Publication of EP0305713B1 publication Critical patent/EP0305713B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B7/00—Hand- or power-operated devices for opening closed containers
    • B67B7/38—Power-operated cutting devices

Definitions

  • Electrically driven can opener with a housing accommodating a drive motor and a drive mechanism, a transport wheel arranged on the outside of a housing wall and drivable by the drive motor and the drive mechanism, and a shaft rotatably mounted at a distance from the transport wheel on the housing wall and separating the can lid of a can Knife and a manually operated and rotatably mounted on the housing actuating lever through which the knife can be pivoted from a position to a cutting position and through which the drive motor can be switched on via a switch.
  • a known can opener of the type specified (DE-OS 30 48 063)
  • the knife is simultaneously mounted on the actuating lever actuating the switch. Both parts are arranged on the outside of the housing wall.
  • the actuating lever with the knife is first pivoted and the switch actuated which switches on the drive motor for the transport wheel.
  • the piercing and detaching of a can lid then takes place automatically with the aid of the electric drive, the actuating lever with the knife being automatically pivoted into the can, that is to say into the cutting position.
  • the knife In the cutting position, the knife is supported on the actuating lever, so that the actuating lever automatically remains in the switched-on position until the cutting process has ended.
  • the known can opener has the disadvantage that an interruption of a cutting process which has already started is not readily possible, since that during the cutting process from the knife to the actuating member acting torque keeps the switch in the on position. The consumer must therefore put up with the fact that the can lid is completely cut off if he does not want to forcefully pull the actuating lever back into the starting position. Furthermore, it is to be regarded as less advantageous that the knife has to be inserted into the can lid by the actuating lever before the drive motor is rotated by the switch. This concept inevitably means that a relatively long actuator must be used to apply the piercing force. The rigid connection between the actuating lever and the knife, including the long lever, leads to large actuation paths and to the undesired application of force to the actuating lever by the knife, which makes handling the can opener considerably more difficult.
  • the object of the invention is therefore to provide a can opener of the type mentioned, by which the function of pressing the knife on the can lid and switching on or off is released, in which the knife automatically moves into the can lid after switching on the drive motor and in which the drive motor is only likely to be operated if a can is inserted in the can opener.
  • the actuating lever is designed as a cam switching lever, that the cam switching lever causes the actuation of the switch only in a certain middle angular position that in a transmission area from the actuating lever to the cutting arrangement, a spring-elastic element is formed, which on one side at one point of the actuating lever and on the other side on a lever arm of the knife shaft engages eccentrically that a return spring is formed between the knife shaft and the housing, that the cutting geometry with respect to the cutting edge and the bearing of the knife and the transport wheel is designed such that after Applying the knife to the can lid and then rotating the can an automatic piercing and cutting of the knife on the can lid with little contact force and that a plate is attached to the knife that comes to rest at the edge of the can during the cutting process to limit the depth of cut of the knife.
  • a first advantage is that the resilient element ensures that no noteworthy forces act on the switch-on element that arise during the cutting process, so that the motor can be switched off at any time via the single switch-on element. Furthermore, it is advantageous that with all cans, regardless of the distance between the can lid and the support surface of the transport wheel on the edge of the can, the transport wheel is only set in rotation when it is ensured that the knife lies with sufficient pressing force on the can lid. Only then will the knife automatically stick into the can lid when the drive motor is switched on.
  • the can opener can only be switched on when a deformation of the resilient element takes place, i.e. when a can is actually attached to the can opener, which means that at Deformation of the resilient element and the pivot angle of the lever that occurs in this way the switch is switched on by this.
  • Another advantage is that, after the knife rests on the can lid, upon further actuation of the element actuating the switch, the resilient element is prestressed with a low pretensioning force, so that the knife is also pretensioned against the can lid. With corresponding Cutting geometry alone is sufficient for this pretensioning force to automatically insert the knife into the can lid as soon as the transport wheel sets the can in rotation, without restoring forces acting on the switch-actuating element. This makes a particularly short actuation lever possible.
  • the invention furthermore makes it possible that only a single actuating element is required to actuate the knife and to actuate the switch.
  • An equally important advantage according to the invention is that the resilient element is relaxed at any time during the cutting process by pivoting the actuating element back, and it is therefore possible to switch off the drive motor even though the knife remains in its cutting position. Subsequent removal of the can from the knife and the transport wheel is then easily possible at any time if the can lid has not yet been completely separated from the can.
  • the element actuating the switch is the actuating lever and that the resilient element mechanically connects the actuating lever to the knife.
  • the resilient element forms an automatic component, so that the knife can be locally separated from the actuating lever.
  • the mounting of the actuating lever can be arranged at a distance from the knife mounting, as a result of which the lever can be conveniently placed on the housing of the can opener, both from an ergonomic point of view and for safety reasons.
  • the can opener according to the invention therefore enables a particularly handy and practical housing design.
  • the actuating lever can be arranged within a handle formed by a closed frame, so that the risk of unintentional actuation of the can opener is low.
  • the resilient element as a separate component, it can be special in terms of strength and spring characteristic be manufactured precisely. This allows a more sensitive actuation of the actuation lever and thus a better handling of the can opener.
  • actuating lever which is present anyway.
  • the actuating lever is preferably connected directly to the knife, so that there is no elastic deformation in this area when the actuating lever is actuated; the elastic deformation then rather arises on the elastically designed actuating lever, in that after the knife rests on the can lid, when the actuating lever is pulled further, it no longer rotates, but only deforms along the lever length until the switch is actuated.
  • the actuating lever is rotatably mounted on the housing, the spring-elastic element being coupled to a connecting part mounted in the housing, which is connected to a shaft carrying the knife, and the spring-elastic element consisting of spring wire , whose roughly right-angled ends engage in bores arranged eccentrically on the actuating lever and on the connecting part.
  • a sliding member can also be used, so that an eccentric bore is only arranged on the connecting part. Due to the eccentrically arranged bores, the movement initiated on the lever is transmitted to the knife as a rotary movement.
  • the spring-elastic element present in the transmission path between the lever and the knife when correctly designed, enables the drive motor to be switched on before the knife is inserted into the can lid.
  • the connecting part is detachable with the shaft is connected. Disassembly allows easy cleaning and replacement of the knife.
  • one or both ends of the resilient element are Z-shaped.
  • the coupling rod formed by the spring wire bends after the knife comes to rest on the edge of the can lid when the lever is pivoted further into the switch-on position.
  • At least one end of the resilient element can additionally be bent several times.
  • the central region of the spring-elastic element can be shaped into a single or multiple spiral.
  • the helix can be arranged eccentrically to the longitudinal axis of one or both lateral areas of the resilient element.
  • the resilient element can preferably be made of metal and / or plastic. Rubber-elastic plastics can also be used here. When combining the materials metal / plastic, it is conceivable that the two edge ends are connected to one another via a rubber-elastic element.
  • the distance between the actuating lever and the switch must be such that when the actuating lever is actuated, it only switches on the switch and thus the drive motor by deforming the resilient element after the knife has been placed on the can lid.
  • the invention further provides that the knife, the connecting part, the resilient element and the actuating lever can be moved into the starting position by a return spring.
  • these parts are basically in the starting position in the rest position. The starting position enables easy opening and operation of the can opener with one hand.
  • the end of the shaft provided with a flattened portion engages in a non-rotatable manner in a flattened portion correspondingly formed in a bore in the connecting part.
  • the connecting part is designed as a flat circular disc with a radial lever arm having an eccentric bore.
  • the circular disk can be produced particularly easily as a stamped part if it is made of metal or as a molded part if it is made of plastic.
  • the connecting part can be permanently connected to the shaft.
  • the connecting part In the case of a knife which can be removed from the can opener, on the other hand, the connecting part must be releasably connected to the shaft.
  • an unlockable latch is provided according to the invention, which engages in a groove formed in the shaft.
  • the unlockable bolt is held in the starting position by a spring which acts counter to the release direction of the bolt and thus always ensures that the shaft is held securely in the can opener.
  • an actuating button secured in the housing for actuating the bolt is held in its initial position.
  • the rotatability of the knife beyond an extreme cutting position is limited by a stop and that when the actuating lever is actuated into the end position of the knife defined by the stop without a can being cut open, the actuating lever can only be moved further by tensioning the spring-elastic element arranged between the actuating lever and the shaft into a position in which the switch is then closed.
  • the actuating lever can only be moved further by tensioning the spring-elastic element arranged between the actuating lever and the shaft into a position in which the switch is then closed.
  • the knife first rotates to its end position at the stop, covering the transport wheel from the side and from the front. A risk of injury in this position is now completely excluded by the knife, even if the other hand turns the actuating lever _ the knife remains in its end position _ the drive motor is switched on and the transport wheel is set in rotation. Childproofing is achieved by this inventive design.
  • the can opener shown consists of a substantially cuboid housing 1, in which there is a gear, not shown, with an electric drive motor (also not shown) for a transport wheel 2.
  • the transport wheel 2 is located on the outside of a housing wall 3 and is screwed to a drive shaft 4 which connects the housing wall 3 penetrates and which is mounted in this and an opposite housing wall 5.
  • a spacer 6 is provided on the drive shaft 4, which transmits the pressure force occurring during the cutting process to the housing wall 3.
  • the outer diameter of the spacer 6 is larger than the outer diameter of the toothed transport wheel 2 and in this way forms an additional side guide for the can rim 41, which counteracts tipping of the can or, if the can 46 is held tight, tipping of the can opener.
  • a shaft 7 is mounted in the housing 1 parallel to the drive shaft 4 and carries a knife 8 at its end protruding from the housing wall 3.
  • the knife 8 is fixed by a screw 9 on the end face of the shaft 7 in a rotationally fixed and axially immovable manner.
  • an intermediate disk 10 is provided, on which a compression spring 11 is supported, which rests on the housing wall 3.
  • the end of the shaft 7 engages in a bore 37 of a sleeve 12 which is designed as a connecting part and which is mounted in a bearing eye 13 on the housing wall 5.
  • a sleeve 12 which is designed as a connecting part and which is mounted in a bearing eye 13 on the housing wall 5.
  • the end of the shaft 7 engaging in the sleeve 12 is provided with a flat 14, with which a flat 15 formed in the sleeve 12 in the bore 37 is in engagement.
  • the sleeve 12 has an arm 16 with a bore 17 into which the bent end 18 of a spring-elastic element made of spring wire engages in the form of a coupling rod 19.
  • the other bent end 20 of the coupling rod 19 engages in a bore 21 in one of FIG. 1 behind the sectional plane lying in the housing 1 rotatably mounted lever 22 which serves to actuate the can opener.
  • a cam 23 for actuating a switch 38 is also provided on the lever 22 (FIG. 2).
  • the shaft 7 is held by a bolt 24 designed as a plate, which is mounted on the inside of the housing wall 3 on pins 25 from top to bottom and vice versa.
  • a bore 26 is provided in the plate 24, through which the shaft 7 is inserted.
  • the edge of the bore 26 engages in a groove 27 formed in the shaft 7 and thereby forms an axial bearing which holds the shaft 7 on the housing 1 in the axial direction.
  • the plate 24 engages with a forked end 50 in a groove 28 which is formed on a stop 29 screwed into the housing wall 3 and designed as a guide pin.
  • the distance between the plate 24 and the housing wall 3 can be varied by the screwing depth of the guide pin 29 into the housing 1. In this way, the axial position of the shaft 7 and thus the distance a of the knife 8 relative to the transport wheel 2 can be set precisely with the aid of the guide pin 29.
  • the plate 24 is pressed in its locking position shown (Fig. 1) by a spring clip 30 in the drawing upwards.
  • a pushbutton 31 which penetrates the housing 1 is provided on the top of the housing 1 and rests on an angled portion 32 formed on the plate 24 at the edge thereof. If the push button 31 is actuated in the direction of the shaft 7, the plate 24 can be pushed downward against the force of the spring clip 30 until the edge of the bore 26 out of the groove 28 emerges and the bore 26 is aligned with the shaft 7. Due to the action of the compression spring 11, the shaft 7 is then automatically shifted to the right, so that the plate 24 can no longer snap into the groove 26.
  • the knife 8 and the shaft 7 can now be removed from the housing 1 together even after the push button has been released, for example for cleaning purposes.
  • the end of the shaft 7 is provided with a chamfer 40, the smallest diameter of which engages in the bore 26 even when the plate 24 is not depressed, and the plate 24 when the shaft 7 is displaced further pulls down.
  • the knife 8 If the knife 8 is in the cutting position (shown in dashed lines in FIG. 4), its cutting edge 43 is in front of the latter in the direction of rotation 42 of the transport wheel 2. In order to achieve this position, the knife 8 must be pivoted by actuating the lever 22 (FIGS. 1 and 2) against a return spring 33 engaging the sleeve 12.
  • the coupling rod 19 transmits the rotary movement of the lever 22 to the sleeve 12, which takes the shaft 7 with it in its movement via the flat 15.
  • the torque that can be generated here is not sufficient to insert the knife 8 with its piercing tip 44 into the can lid 45 at the start of a cutting process.
  • the coupling rod 19 is therefore elastically deformable (see dashed line in Fig.
  • the can 46 (FIG. 4) is driven via its can edge 41 by the transport wheel 2 and thereby rotated, and at the same time the cover 45 becomes the knife 8 cut, as long as the lid 45 is not completely separated from the rest of the can 46.
  • the lever 22 If the lever 22 is moved back to the starting position after the cutting process has ended, it first actuates the switch 38, which switches off the drive motor of the can opener. At the same time, the spring-elastic element 19 is relaxed and pulls the sleeve 19 into its starting position, which in turn pivots the shaft 7 together with the knife 8 back into its starting position. The automatic return process is only guaranteed by the return spring 33.
  • the switch-on pressure on the lever 22 must first be released.
  • the lever 22 rotates back into its initial position to the extent that it is moved back in the direction of the initial position by the movement released when the spring-elastic element 19 is released.
  • the switch 38 is actuated, which switches off the drive motor.
  • the knife 8 is held in the cutting position.
  • the can opener is pivoted slightly upward while holding the can 46.
  • the knife 8 is released from the cutting gap and is moved back into its starting position by the return spring 33.
  • FIG. 3 shows a variant of the coupling rod 19 formed from spring wire, in which, in order to increase the elasticity, the central region of the spring-elastic element 19 is bent into a twisted spiral 34.
  • Essentially straight sections 35 lead from the helix 34 to the two bent ends 18, 20 of the coupling rod 19.
  • the sections 35 lie on a common longitudinal axis which affects the turns of the eccentrically arranged helix 34.
  • the bent ends 18, 20 lie in a common plane, and the spirals 34 are essentially above this plane in the drawing.
  • the extent of the elasticity and the direction of the buckling can be predetermined in the desired manner by the number and position of the turns of the helix 34.
  • the design of the coupling rod 19 according to FIG. 3 therefore offers the designer a wide scope for designing the power transmission from the lever 22 to the sleeve 12 and from there to the shaft 7 of the knife bearing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Opening Bottles Or Cans (AREA)
  • Lock And Its Accessories (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Discharge Heating (AREA)
  • Glass Compositions (AREA)

Claims (17)

1. Ouvre-boîtes électrique, avec un boîtier (1) recevant un moteur d'entraînement et un mécanisme d'entraînement, avec une molette de transport (2) montée sur le côté extérieur de la paroi du boîtier (3) et pouvant être entraînée par le moteur d'entraînement et le mécanisme d'entraînement, avec un couteau (8) destiné à découper le couvercle (45) d'une boîte de conserve (46), monté tournant sur un arbre (7) sur la paroi du boîtier (3), à une certaine distance de la molette de transport (2), et avec un levier de commande (22) monté pivotant sur le boîtier (1) et pouvant être actionné manuellement qui déplace le couteau (8) d'une position de butée dans une position de coupe et commande le moteur d'entraînement par l'intermédiaire d'un commutateur (38), caractérisé en ce que le levier de commande (22) est réalisé sous la forme d'un levier de commande à cames, en ce que le levier de commande à cames (22, 23) n'opère l'actionnement du commutateur (38) que dans une certaine position angulaire médiane, en ce que, sur la partie de transmission entre le levier de commande (22) et le dispositif de coupe se trouve un élément élastique (19) qui s'appuie d'une part sur un point (21) du levier de commande (22) et d'autre part, excentriquement, sur un bras de levier (16) de l'arbre du couteau (7), en ce que, entre l'arbre du couteau (7) et le boîtier (1), il existe un ressort de rappel (33), en ce que la géométrie de coupe, pour ce qui concerne l'arête de coupe (43) et le supportage du couteau (8) ainsi que de la molette de transport (2), est choisie de manière à ce que, après la prise de contact du couteau (8) sur le couvercle de la boîte (45) et lors de la mise en rotation de la boîte de conserve (46), le perçage et la découpe du couvercle de la boîte (45) par le couteau (8) se fassent automatiquement et avec une faible force d'appui et en ce que le couteau (8) porte une plaquette (51) qui, dans l'opération de coupe, vient en appui sur le bord de la boîte (41) afin de limiter la profondeur de coupe du couteau (8).
2. Ouvre-boîtes selon la revendication 1, caractérisé en ce que l'élément actionnant le commutateur (38) est le levier de commande (22) et en ce que l'élément élastique (19) relie le levier de commande (22) et le couteau (8).
3. Ouvre-boîtes selon la revendication 1, caractérisé en ce que l'élément élastique est constitué du levier de commande (22) lui-même.
4. Ouvre-boîtes selon les revendications 1 et 2, caractérisé en ce que le levier de commande (22) est monté pivotant sur le boîtier (1), en ce que l'élément élastique (19) est couplé à une pièce de liaison (12) montée sur le boîtier (1) et reliée à l'arbre (7) portant le couteau (8), en ce que l'élément élastique (19), fabriqué en fil à ressort, s'engage par des extrémités coudées de manière sensiblement perpendiculaire (18, 20) dans des alésages excentriques (17, 21) ménagés dans le levier de commande (22) et dans la pièce de liaison (12).
5. Ouvre-boîtes selon la revendication 4, caractérisé en ce que la pièce de liaison (12) est assemblée de manière amovible avec l'arbre (7).
6. Ouvre-boîtes selon la revendication 4, caractérisé en ce qu'une des extrémités (18), ou les deux, de l'élément élastique (19) est en forme de Z.
7. Ouvre-boîtes selon la revendication 6, caractérisé en ce qu'au moins une des extrémités de l'élément élastique (19) est coudée plusieurs fois.
8. Ouvre-boîtes selon la revendication 4, 6 ou 7, caractérisé en ce que la partie médiane de l'élément élastique (19) a la forme d'une spirale (34) à une ou plusieurs spires.
9. Ouvre-boîtes selon la revendication 8, caractérisé en ce que la spirale (34) est disposée excentriquement par rapport à l'axe longitudinal d'une ou des deux sections latérales (35) de l'élément élastique (19).
10. Ouvre-boîtes selon les revendications 4 à 9, caractérisé en ce que l'élément élastique est fabriqué en métal et/ou en matière plastique.
11. Ouvre-boîtes selon les revendications 1 à 10, caractérisé en ce que le couteau (8), la pièce de liaison (12), l'élément élastique (19) et le levier de commande (22) peuvent être ramenés dans une position de départ par un ressort de rappel (33).
12. Ouvre-boîtes selon la revendication 5, caractérisé en ce que l'extrémité de l'arbre (7) du couteau (8) s'engageant dans la pièce de liaison (12) présente un plat (14) qui s'engage contre un plat (15) correspondant ménagé dans un alésage (37) dans la pièce de liaison (12).
13. Ouvre-boîtes selon les revendications 4 à 12, caractérisé en ce que la pièce de liaison (12) a la forme d'un disque annulaire plat avec un bras de levier radial présentant un alésage excentrique (17).
14. Ouvre-boîtes selon la revendication 13, caractérisé en ce que la pièce de liaison est montée inamovible sur l'arbre (7).
15. Ouvre-boîtes selon la revendication 13, caractérisé en ce que la pièce de liaison est montée amovible sur l'arbre (7).
16. Ouvre-boîtes selon les revendications 4 à 14, caractérisé en ce que l'arbre (7) est maintenu dans la direction axiale par une pièce d'arrêt (24) déverrouillable s'engageant dans une rainure (28) de l'arbre (7).
17. Ouvre-boîtes selon les revendications 1, 2 ou 3, caractérisé en ce que le mouvement de rotation du couteau (8) est limité par une butée (29) pour ne pas pouvoir dépasser une position de coupe extrême et en ce que, si l'on actionne le levier de commande (22) dans la position extrême du couteau (8) définie par la butée (19) sans qu'une boîte soit ouverte, le levier de commande (22) ne peut plus se déplacer qu'en poussant l'élément élastique (19) se trouvant entre le levier de commande (22) et l'arbre (7) dans une position où le commutateur (38) est alors fermé.
EP88111488A 1987-09-02 1988-07-16 Ouvre-boîtes électrique Expired - Lifetime EP0305713B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88111488T ATE63290T1 (de) 1987-09-02 1988-07-16 Elektrisch angetriebener dosenoeffner.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3729259 1987-09-02
DE19873729259 DE3729259A1 (de) 1987-09-02 1987-09-02 Elektrisch angetriebener dosenoeffner

Publications (2)

Publication Number Publication Date
EP0305713A1 EP0305713A1 (fr) 1989-03-08
EP0305713B1 true EP0305713B1 (fr) 1991-05-08

Family

ID=6335021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88111488A Expired - Lifetime EP0305713B1 (fr) 1987-09-02 1988-07-16 Ouvre-boîtes électrique

Country Status (7)

Country Link
US (1) US4922617A (fr)
EP (1) EP0305713B1 (fr)
JP (1) JPH0641319B2 (fr)
AT (1) ATE63290T1 (fr)
CA (1) CA1321471C (fr)
DE (2) DE3729259A1 (fr)
ES (1) ES2021799B3 (fr)

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
US5313708A (en) * 1992-12-04 1994-05-24 The Rival Company Can opener
CA2135114C (fr) * 1993-11-22 2004-08-24 Richard B. Kosten Ouvre-boite avec dispositif de retenue mobile pour couvercle
USD411789S (en) * 1998-01-09 1999-07-06 The Rival Company Can opener
US5992026A (en) * 1998-01-09 1999-11-30 The Rival Company Kitchen appliance with pivotal mounting
US6189221B1 (en) 1998-12-31 2001-02-20 The Rival Company Can opener appliance having a side-cutting mechanism
US6510613B1 (en) 2000-07-20 2003-01-28 The Holmes Group, Inc. Ergonomic can opener
US6505405B2 (en) * 2001-04-05 2003-01-14 Main Power Electrical Factory Limited Electric can opener
TWI344469B (en) 2005-04-07 2011-07-01 Nippon Catalytic Chem Ind Polyacrylic acid (salt) water-absorbent resin, production process thereof, and acrylic acid used in polymerization for production of water-absorbent resin
EP1837348B9 (fr) 2006-03-24 2020-01-08 Nippon Shokubai Co.,Ltd. Résine absorbant l'eau et son procédé de fabrication
US9221665B1 (en) * 2013-12-05 2015-12-29 Gregory Mark Adamczak Manual left or right hand can opener with tilt and rotating spherical joint
US20180265341A1 (en) * 2017-03-17 2018-09-20 Gregory Mark Adamczak Electric can opener with rotating spherical joint

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2979815A (en) * 1959-05-08 1961-04-18 Burgess Vibrocrafters Electric can opener
US3277570A (en) * 1964-08-03 1966-10-11 Rival Mfg Company Electric can opener with power pierce means
US3550271A (en) * 1968-05-29 1970-12-29 Oster Mfg Co John Automatic can opener
US3706135A (en) * 1969-11-08 1972-12-19 Matsushita Electric Ind Co Ltd An electrically powered can opener
JPS5327256Y2 (fr) * 1972-09-08 1978-07-11
DE3048063C2 (de) * 1980-12-19 1987-01-02 Hermann Mellert GmbH & Co KG Fabrik für Feinmechanik und Elektrotechnik, 7518 Bretten Elektrischer Dosenöffner
JPS6055396B2 (ja) * 1982-09-06 1985-12-04 株式会社愛知電機工作所 電気缶切機

Also Published As

Publication number Publication date
US4922617A (en) 1990-05-08
ES2021799B3 (es) 1991-11-16
EP0305713A1 (fr) 1989-03-08
DE3862721D1 (de) 1991-06-13
CA1321471C (fr) 1993-08-24
DE3729259A1 (de) 1989-03-23
ATE63290T1 (de) 1991-05-15
JPH0641319B2 (ja) 1994-06-01
JPS6470397A (en) 1989-03-15

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