EP0335452B1 - Washing machine with an overflow - Google Patents
Washing machine with an overflow Download PDFInfo
- Publication number
- EP0335452B1 EP0335452B1 EP89200742A EP89200742A EP0335452B1 EP 0335452 B1 EP0335452 B1 EP 0335452B1 EP 89200742 A EP89200742 A EP 89200742A EP 89200742 A EP89200742 A EP 89200742A EP 0335452 B1 EP0335452 B1 EP 0335452B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tank
- overflow
- washing machine
- axis
- siphon
- 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
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/26—Casings; Tubs
- D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/08—Liquid supply or discharge arrangements
- D06F39/087—Water level measuring or regulating devices
Definitions
- the invention relates to a washing machine comprising a tank, a cylindrical drum whose axis of rotation is horizontal, a water supply device at a controlled level, a draining means and an overflow limiting the amount of tank filling water, the overflow fitted on a wall of the tank has a drain hole placed in a substantially horizontal plane passing through the axis of rotation of the drum, opposite with respect to said axis of the wave generated in the tank by the rotation of the drum, and where the overflow is arranged on a substantially flat and vertical side wall of the tank.
- the subject of the invention is an overflow of a washing machine which is not influenced by the movements of the mass of water contained in the tank of the washing machine during its operation in a dynamic state, an overflow having a construction simple and efficient.
- the overflow is composed of a foam trap and a siphon forming a conduit composed of three tubular parts in an arc of a circle, placed side by side, concentric with the axis of rotation of the drum. , the three tubular parts being connected by elbows.
- the drain hole is placed so that a line joining the axis of the drain hole and the axis of rotation of the tank forms an angle of about 10 ° relative to the horizontal plane.
- the drain hole in communication with the internal space of the tank is placed in a zone of non-turbulence directly linked to the direction of movement of the wave generated by the rotation of the drum.
- the tubular parts of the foam trap form an open arc of an angle of about 100 ° and the tubular parts of the siphon form an open arc of an angle of about 140 °.
- the general shape of the overflow was obtained following comparative tests which made it possible to optimize shapes and dimensions for the proper functioning of the foam trap as well as the siphon both facilitating the evacuation of a quantity of water determined when the washing machine does not work, for example when the pressure switch does not work.
- the foam trap is provided with a foam trap hole communicating with the internal space of the tank and the siphon is provided with a siphon hole in its upper part communicating with the internal space of the tank.
- the small diameter foam trap hole allows, without reducing the effectiveness of the foam trap, to eliminate the quantity of water contained in the foam trap, after a spill, and thus avoid this water stagnates and emits some unpleasant odors over time.
- the siphon hole of small diameter allows, without reducing the efficiency of the siphon, to stop the syphonic effect for a low water flow.
- FIG. 1 represents a washing machine in which an overflow known in the previous technical field.
- Figure 2 is a perspective view of a washing machine tank on which is molded part of the overflow according to the invention.
- Figure 3 is a view of the overflow according to the invention.
- Figures 4a and 4b are respectively a diagram of the movement of water in a pipe during the dynamic operation of a known washing machine and a diagram of the movement of water of a machine in operation in a dynamic state and having an overflow according to the invention.
- FIG. 1 shows a washing machine 1 comprising a tank 2 in which is arranged a cylindrical drum 3 whose axis of rotation is horizontal, the drum being driven by a motor.
- a water supply device at a controlled level comprising a solenoid valve 4 ensuring a supply of water to the tank 2, a compression chamber 5, one end of which can be immersed in the water of the tank to convert the variation in the level of supply water from the tank into a pressure variation of an air column, a pressure switch 6 and a programmer 7 controlling the solenoid valve.
- a draining means 9 and an overflow 8 ensure a discharge of the washing water outside the tank 2, either when the tank is emptied, or when the water level reaches a maximum admissible height, when by example the pressure switch 6 or the programmer 7 no longer work.
- the overflow 8 is composed, in a known manner, of a vertical pipe 10 placed in bypass on a pipe 11 of the draining means 9, between a bottom part 12 of the tank and a drain pump 13.
- the vertical pipe 10 opening into the external space 14 of the tank determines, by the principle of communicating vessels, maximum water height in the tank, in a static operating state of the washing machine.
- FIG. 2 is a perspective view of the tank 2 of a washing machine 1, molded tank of a synthetic material. There is shown a hopper 15, a bearing carrying an axis of rotation 16 of the drum 3, as well as an overflow 17 according to the invention partially molded with the tank, on a substantially flat and vertical side wall 33 of said tank 2.
- Figure 3 shows the overflow 17 of Figure 2 positioned relative to a horizontal line 18 passing through the axis of rotation 16 of the drum 3.
- the overflow is composed of a foam trap 19 and a siphon 20 forming a conduit composed of three tubular parts 21, 22, 23, in an arc of a rectangular section, placed side by side and concentric with the axis of rotation 16 of the drum.
- the tubular part 22 placed between the tubular parts 21 and 23 is connected on the one hand to the tubular part 21 by a lower bend 24 and on the other hand to the tubular part 23 by an upper bend 25.
- a drain hole 26 allows direct communication between the overflow 17 and the internal space of the tank 2.
- the drain hole 26 is positioned at a distance of approximately 150 mm from the axis of rotation of the drum, the line passing through the axis of the drain hole 26 and by the axis of rotation 16 of the drum of the tank, forms with the horizontal line 18, an angle of about 10 °.
- the tubular parts 21, 22 with the lower elbow 24 form a foam trap and the tubular parts 22 and 23 with the upper elbow 25 form a siphon which facilitates the flow of water when the quantity of water in the tank is greater than the maximum admissible quantity of water.
- the particular position according to the invention of the overflow is linked to the fact that the water is displaced, when the drum drives it by its rotation, by forming a wave which rises in the direction of rotation of the drum at the opposite relative to the axis of rotation of the zone in which the hole 26 is arranged.
- the overflow is therefore no longer influenced by the dynamic movements, by waves, of the water in the tank.
- a drain hole 27 is placed in the lower part of the overflow siphon 20, on the pipe 23, drain hole 27 communicating with the external space of the tank 2.
- the siphon 20 is provided with a small siphon hole 28 arranged in the upper elbow 25, siphon hole 28 which communicates with the internal space of the tank 2, and allowing defusing of the siphon 20.
- the foam trap 19 is provided with a small diameter foam trap hole 29 arranged in the inner elbow 24, a foam trap hole 29 which communicates with the internal space of the tank 2 to avoid water retention in the tubular parts 21 and 22.
- Figures 4a and 4b are two explanatory diagrams of the movement of water in dynamic operation of a washing machine.
- FIG. 4a represents the overflow known from the prior technical field, consisting of a vertical pipe 10 in bypass with the draining means 9.
- a wave 30 occurs.
- the principle of communicating vessels the movement of water creates a pseudo level of water, represented by a line 31 in dashed lines, which tends to balance with the level of water contained in the vertical pipe 10, which causes, while the amount of water contained in the machine is normal, an overflow of the water contained in the pipe 10, when the pseudo level is above the edge 32 of the pipe 10.
- FIG. 4b represents the overflow 17 according to the invention, the location of the drain hole 26 of the overflow 17 communicating with the internal space of the tank is placed then in a zone of weak turbulence, where the water level remains below the water level of the state known as static at the time of the formation of the wave 30.
- the overflow 17 has in addition to the advantage described, that of being integrated into the tank, reducing the size of the elements contained in the washing machine, and reducing the labor costs during the construction of said washing machine.
Description
L'invention concerne une machine à laver le linge comprenant une cuve, un tambour cylindrique dont l'axe de rotation est horizontal, un dispositif d'alimentation en eau à niveau contrôlé, un moyen de vidange et un trop plein limitant la quantité d'eau de remplissage de la cuve, le trop plein aménagé sur une paroi de la cuve a un trou de vidange placé dans un plan sensiblement horizontal passant par l'axe de rotation du tambour, à l'opposé par rapport audit axe de la vague engendrée dans la cuve par la rotation du tambour, et où le trop plein est aménagé sur une paroi latérale sensiblement plane et verticale de la cuve.The invention relates to a washing machine comprising a tank, a cylindrical drum whose axis of rotation is horizontal, a water supply device at a controlled level, a draining means and an overflow limiting the amount of tank filling water, the overflow fitted on a wall of the tank has a drain hole placed in a substantially horizontal plane passing through the axis of rotation of the drum, opposite with respect to said axis of the wave generated in the tank by the rotation of the drum, and where the overflow is arranged on a substantially flat and vertical side wall of the tank.
Une telle machine à laver est connue du brevet DE-C 1 157 578.Such a washing machine is known from patent DE-C 1,157,578.
L'invention a pour objet un trop plein de machine à laver qui n'est pas influencé par les mouvements de la masse d'eau contenue dans la cuve de la machine à laver lors de son fonctionnement en état dynamique, trop plein ayant une construction simple et efficace.The subject of the invention is an overflow of a washing machine which is not influenced by the movements of the mass of water contained in the tank of the washing machine during its operation in a dynamic state, an overflow having a construction simple and efficient.
Elle se caractérise par le fait que le trop plein est composé d'un piège à mousse et d'un siphon formant un conduit composé de trois parties tubulaires en arc de cercle, placées côte à côte, concentriquement à l'axe de rotation du tambour, les trois parties tubulaires étant reliées par des coudes.It is characterized by the fact that the overflow is composed of a foam trap and a siphon forming a conduit composed of three tubular parts in an arc of a circle, placed side by side, concentric with the axis of rotation of the drum. , the three tubular parts being connected by elbows.
Particulièrement, le trou de vidange est placé de façon qu'une ligne joignant l'axe du trou de vidange et l'axe de rotation de la cuve forme par rapport au plan horizontal un angle d'environ 10°. Le trou de vidange en communication avec l'espace interne de la cuve est placé dans une zone de non turbulence directement liée au sens de déplacement de la vague engendrée par la rotation du tambour.In particular, the drain hole is placed so that a line joining the axis of the drain hole and the axis of rotation of the tank forms an angle of about 10 ° relative to the horizontal plane. The drain hole in communication with the internal space of the tank is placed in a zone of non-turbulence directly linked to the direction of movement of the wave generated by the rotation of the drum.
De façon préférentielle, les parties tubulaires du piège à mousse forment un arc de cercle ouvert d'un angle d'environ 100° et les parties tubulaires du siphon forment un arc de cercle ouvert d'un angle d'environ 140°. La forme générale du trop plein a été obtenue à la suite d'essais comparatifs qui ont permis d'optimiser formes et dimensions pour le bon fonctionnement du piège à mousse ainsi que du siphon tous deux facilitant l'évacuation d'une quantité d'eau déterminée lors du non fonctionnement de la machine à laver, par exemple lors du non fonctionnement du pressostat.Preferably, the tubular parts of the foam trap form an open arc of an angle of about 100 ° and the tubular parts of the siphon form an open arc of an angle of about 140 °. The general shape of the overflow was obtained following comparative tests which made it possible to optimize shapes and dimensions for the proper functioning of the foam trap as well as the siphon both facilitating the evacuation of a quantity of water determined when the washing machine does not work, for example when the pressure switch does not work.
Avantageusement, le piège à mousse est muni d'un trou de piège à mousse communiquant avec l'espace interne de la cuve et le siphon est muni d'un trou de siphon en sa partie haute communiquant avec l'espace interne de la cuve.Advantageously, the foam trap is provided with a foam trap hole communicating with the internal space of the tank and the siphon is provided with a siphon hole in its upper part communicating with the internal space of the tank.
Le trou de piège à mousse, de petit diamètre, permet, sans réduire l'efficacité du piège à mousse, d'éliminer la quantité d'eau contenue dans le piège à mousse, après un déversement, et d'éviter ainsi que cette eau stagne et émette dans le temps quelques odeurs désagréables.The small diameter foam trap hole allows, without reducing the effectiveness of the foam trap, to eliminate the quantity of water contained in the foam trap, after a spill, and thus avoid this water stagnates and emits some unpleasant odors over time.
Le trou de siphon de petit diamètre permet, sans réduire l'efficacité du siphon, de stopper l'effet syphonique pour un faible débit d'eau.The siphon hole of small diameter allows, without reducing the efficiency of the siphon, to stop the syphonic effect for a low water flow.
La description ci-après, le tout donné à titre d'exemple non limitatif, fera bien comprendre comment l'invention peut être réalisée.The description below, all given by way of nonlimiting example, will make it clear how the invention can be implemented.
La figure 1 représente une machine à laver le linge dans laquelle est aménagé un trop plein connu dans le domaine technique antérieur.FIG. 1 represents a washing machine in which an overflow known in the previous technical field.
La figure 2 est une vue en perspective d'une cuve de machine à laver sur laquelle est moulée une partie du trop plein selon l'invention.Figure 2 is a perspective view of a washing machine tank on which is molded part of the overflow according to the invention.
La figure 3 est une vue du trop plein selon l'invention.Figure 3 is a view of the overflow according to the invention.
Les figures 4a et 4b sont respectivement, un schéma des déplacements de l'eau dans une canalisation lors du fonctionnement en dynamique d'une machine à laver connue et un schéma de déplacement de l'eau d'une machine en fonctionnement dans un état dynamique et possédant un trop plein selon l'invention.Figures 4a and 4b are respectively a diagram of the movement of water in a pipe during the dynamic operation of a known washing machine and a diagram of the movement of water of a machine in operation in a dynamic state and having an overflow according to the invention.
La figure 1 présente une machine à laver le linge 1 comprenant une cuve 2 dans laquelle est aménagé un tambour 3 cylindrique dont l'axe de rotation est horizontal, le tambour étant entraîné par un moteur. Dans la machine à laver 1 est aménagé un dispositif d'alimentation en eau à niveau contrôlé comprenant une électrovanne 4 assurant un approvisionnement en eau de la cuve 2, une chambre de compression 5 dont une extrémité peut être immergée dans l'eau de la cuve pour assurer une conversion de la variation du niveau d'eau d'alimentation de la cuve en une variation de pression d'une colonne d'air, un pressostat 6 et un programmateur 7 assurant la commande de l'électrovanne. Un moyen de vidange 9 et un trop plein 8 assurent un déversement de l'eau de lavage en dehors de la cuve 2, soit lors de la vidange de la cuve, soit lorsque le niveau d'eau atteint une hauteur maximale admissible, quand par exemple le pressostat 6 ou le programmateur 7 ne fonctionnent plus.Figure 1 shows a washing machine 1 comprising a tank 2 in which is arranged a
Le trop plein 8 est composé de façon connue, d'une canalisation verticale 10 placée en dérivation sur une conduite 11 du moyen de vidange 9, entre une partie basse 12 de la cuve et une pompe de vidange 13.The
La canalisation verticale 10 débouchant dans l'espace externe 14 de la cuve détermine, par le principe des vases communicants, une hauteur d'eau maximle dans la cuve, dans un état de fonctionnement statique de la machine à laver.The
La figure 2 est une vue en perspective de la cuve 2 d'une machine à laver 1, cuve moulée en une matière synthétique. Il est représenté une trémie 15, un palier portant un axe de rotation 16 du tambour 3, ainsi qu'un trop plein 17 selon l'invention moulé partiellement avec la cuve, sur une paroi latérale 33 sensiblement plane et verticale de ladite cuve 2.Figure 2 is a perspective view of the tank 2 of a washing machine 1, molded tank of a synthetic material. There is shown a
La figure 3 représente le trop plein 17 de la figure 2 positionné par rapport à une ligne horizontale 18 passant par l'axe de rotation 16 du tambour 3. Le trop plein est composé d'un piège à mousse 19 et d'un siphon 20 formant un conduit composé de trois parties tubulaires 21, 22, 23, en arc de cercle de section rectangulaire, placées côte à côte et concentriquement à l'axe de rotation 16 du tambour. La partie tubulaire 22 placée entre les parties tubulaires 21 et 23 est liée d'une part à la partie tubulaire 21 par un coude inférieur 24 et d'autre part à la partie tubulaire 23 par un coude supérieur 25. Un trou de vidange 26 permet la communication directe entre le trop plein 17 et l'espace interne de la cuve 2. Le trou de vidange 26 est positionné à une distance d'environ 150 mm de l'axe de rotation du tambour, la ligne passant par l'axe du trou de vidange 26 et par l'axe de rotation 16 du tambour de la cuve, forme avec la ligne horizontale 18, un angle d'environ 10°.Figure 3 shows the
Les parties tubulaires 21, 22 avec le coude inférieur 24 forment un piège à mousse et les parties tubulaires 22 et 23 avec le coude supérieur 25 forment un siphon qui facilite l'écoulement de l'eau lorsque la quantité d'eau de la cuve est supérieure à la quantité maximale d'eau admissible.The
La position particulière selon l'invention du trop plein est liée au fait que l'eau est déplacée, lorsque le tambour l'entraine par sa rotation, en formant une vague qui s'élève dans le sens de la rotation du tambour à l'opposé par rapport à l'axe de rotation de la zone dans laquelle est aménagé le trou 26. Le trop plein n'est donc plus influencé par les déplacements dynamiques, par vagues, de l'eau dans la cuve.The particular position according to the invention of the overflow is linked to the fact that the water is displaced, when the drum drives it by its rotation, by forming a wave which rises in the direction of rotation of the drum at the opposite relative to the axis of rotation of the zone in which the
Un trou d'écoulement 27 est placé dans la partie inférieure du siphon 20 du trop plein, sur la canalisation 23, trou d'écoulement 27 communiquant avec l'espace externe de la cuve 2.A
Le siphon 20 est muni d'un petit trou de siphon 28 aménagé dans le coude supérieur 25, trou de siphon 28 qui communique avec l'espace interne de la cuve 2, et permettant le désamorçage du siphon 20.The
Le piège à mousse 19 est muni d'un trou de piège à mousse 29 de petit diamètre aménagé dans le coude intérieur 24, trou de piège à mousse 29 qui communique avec l'espace interne de la cuve 2 pour éviter la rétention d'eau dans les parties tubulaires 21 et 22.The
Les figures 4a et 4b sont deux schémas explicatifs des déplacements de l'eau en fonctionnement dynamique d'une machine à laver le linge.Figures 4a and 4b are two explanatory diagrams of the movement of water in dynamic operation of a washing machine.
La figure 4a représente le trop plein connu du domaine technique antérieur, composé d'une canalisation verticale 10 en dérivation avec le moyen de vidange 9. Lorsque le tambour 3 tourne dans le sens de la flèche F, il se produit une vague 30. Par le principe des vases communicants, le mouvement de l'eau crée un pseudo niveau d'eau, représenté par une ligne 31 en traits interrompus, qui tend à s'équilibrer avec le niveau d'eau contenu dans la canalisation verticale 10, ce qui provoque, alors que la quantité d'eau contenue dans la machine est normale, un débordement de l'eau contenue dans la canalisation 10, lorsque le pseudo niveau est au-dessus du bord 32 de la canalisation 10.FIG. 4a represents the overflow known from the prior technical field, consisting of a
La figure 4b représente le trop plein 17 selon l'invention, l'emplacement du trou de vidange 26 du trop plein 17 communiquant avec l'espace interne de la cuve est placé alors dans une zone de faibles turbulences, où le niveau d'eau reste au-dessous du niveau d'eau de l'état dit statique au moment de la formation de la vague 30.FIG. 4b represents the
Le trop plein 17 possède en plus de l'avantage décrit, celui d'être intégré à la cuve, réduisant l'encombrement des éléments contenus dans la machine à laver, et diminuant les coûts de mains d'oeuvre lors de la construction de ladite machine à laver.The
Claims (6)
- A clothes washing machine comprising a tank, a cylindrical drum, the axis of rotation of which is horizontal, a device for supplying water to a controlled level, a draining means and an overflow limiting the quantity of water filling the tank, the overflow arranged on one wall of the tank has a drainage hole placed in a substantially horizontal plane passing through the axis of rotation of the drum, opposite relative to said axis the wave generated inside the tank by the rotation of the drum, and where the overflow is arranged on a substantially plane and vertical side wall of the tank, characterised in that the overflow (17) is composed of a foam trap (19) and a siphon (20) forming a conduit composed of three tubular portions (21, 22, 23) in an arc of a circle, placed side by side, concentrically with the axis of rotation (16) of the drum, the three tubular portions being connected by two elbows (24, 25), the lower one of which (24) together with the tubular portions (21, 22) forms the foam trap and the upper one of which (25) together with the tubular portions (22, 23) forms a siphon.
- A washing machine according to Claim 1, characterised in that the drainage hole (26) is placed such that a line joining the axis of the drainage hole (26) of the overflow and the axis of rotation (16) of the tank forms an angle of about 10° with respect to the horizontal plane.
- A washing machine according to Claim 1, characterised in that the tubular portions (21, 22) of the foam trap (19) form an open arc of a circle of an angle of about 100°.
- A washing machine according to Claim 1, characterised in that the tubular portions (22, 23) of the siphon (20) form an open arc of a circle of an angle of about 140°.
- A washing machine according to Claims 1 and 3, characterised in that the foam trap (19) is provided with a foam trap hole (29) communicating with the inner space of the tank.
- A washing machine according to Claims 1 and 4, characterised in that the siphon (20) is provided with a siphon hole (28) in its upper portion communicating with the inner space of the tank.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8804078 | 1988-03-29 | ||
| FR8804078A FR2629487B1 (en) | 1988-03-29 | 1988-03-29 | LAUNDRY WASHING MACHINE WITH OVERFLOW |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0335452A1 EP0335452A1 (en) | 1989-10-04 |
| EP0335452B1 true EP0335452B1 (en) | 1993-05-19 |
Family
ID=9364726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP89200742A Expired - Lifetime EP0335452B1 (en) | 1988-03-29 | 1989-03-23 | Washing machine with an overflow |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0335452B1 (en) |
| DE (1) | DE68906583T2 (en) |
| ES (1) | ES2040448T3 (en) |
| FR (1) | FR2629487B1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19812363C1 (en) * | 1998-03-20 | 1999-07-15 | Whirlpool Co | Washing machine has laundry drum driven by electric motor |
| DE19821144A1 (en) * | 1998-05-12 | 1999-11-18 | Degussa | Process for the production of powdery heterogeneous substances |
| ES2333148T3 (en) * | 2006-04-27 | 2010-02-17 | Electrolux Home Products Corporation N.V. | INTEGRATED CUBA FLOODING SYSTEM FOR UPPER LOADING WASHING MACHINE. |
| CN105316890B (en) | 2014-07-31 | 2018-04-10 | Lg电子株式会社 | Washing machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1119085A (en) * | 1954-04-20 | 1956-06-14 | Connection device, in particular for automatic washing machines | |
| GB1114789A (en) * | 1964-12-01 | 1968-05-22 | Teodoro Donini | A control device for adjusting the level of a liquid inside of tanks particularly adapted for washing machines |
| FR2533026A1 (en) * | 1982-09-14 | 1984-03-16 | Esswein Sa | CONTROLLED LEVEL LIQUID SUPPLY DEVICE AND APPLICATION TO WASHING MACHINE |
-
1988
- 1988-03-29 FR FR8804078A patent/FR2629487B1/en not_active Expired - Fee Related
-
1989
- 1989-03-23 DE DE68906583T patent/DE68906583T2/en not_active Expired - Lifetime
- 1989-03-23 ES ES198989200742T patent/ES2040448T3/en not_active Expired - Lifetime
- 1989-03-23 EP EP89200742A patent/EP0335452B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE68906583D1 (en) | 1993-06-24 |
| EP0335452A1 (en) | 1989-10-04 |
| FR2629487B1 (en) | 1991-12-20 |
| FR2629487A1 (en) | 1989-10-06 |
| DE68906583T2 (en) | 1994-05-19 |
| ES2040448T3 (en) | 1993-10-16 |
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