EP0844052B1 - Pneumatic screwdriver - Google Patents
Pneumatic screwdriver Download PDFInfo
- Publication number
- EP0844052B1 EP0844052B1 EP19970402663 EP97402663A EP0844052B1 EP 0844052 B1 EP0844052 B1 EP 0844052B1 EP 19970402663 EP19970402663 EP 19970402663 EP 97402663 A EP97402663 A EP 97402663A EP 0844052 B1 EP0844052 B1 EP 0844052B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor
- compressed air
- intake
- rotation
- push button
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
Definitions
- the present invention relates to a pneumatic screwdriver in accordance with the preamble of claim 1 (see GB 2 157 213).
- the present invention relates to screwdrivers having an elongated body with, at one end, a compressed air supply and, at the other end, a head intended to receive a screwing tool, the body having an articulated trigger intended to allow compressed air intake to control a pneumatic motor.
- the screwdrivers include, usually a reversal control means the direction of rotation of the motor, but this is relatively complex.
- a pneumatic tool which includes a reversibility system of the direction of rotation of the motor comprising a pallet connected to a ring located on the outside of the tool body, the palette having two openings, one of which can be placed opposite a compressed air distribution opening for the normal direction of rotation of the tool and the other can be placed opposite each other for the inversion of the sense of rotation.
- One of the aims of the invention is to remedy to these disadvantages or, more precisely, to realize a practical, reliable and less complex than those of the previous technique.
- the screwdriver is of type comprising a body with, at one end, means for connecting an air inlet pipe compressed, a pneumatic motor driving, by a kinematic link, a tool located at the other end, a mobile trigger on the body and commanding, through a distribution wall intake opening compressed air, engine intake, said wall having an exhaust opening connected by leads to an exhaust of the screwdriver and means for reversing the direction of rotation of the motor tire comprising a pusher located outside the body in the vicinity of the trigger controlling a pallet cooperating with the wall of compressed air distribution; the said distribution wall comprising a second intake opening for reversing the direction of rotation of the motor so that when said push-button is not pressed, the engine is running in the normal sense, while when requested, it controls the reversal of the direction of rotation of the motor, said screwdriver being characterized in that the pusher is movable against the action elastic means the pallet is pierced a duct in communication with the air supply compressed and opening on the distribution wall
- the pusher is integral with a sliding mounted rod in a body bore against the action of a spring of compression inserted into said bore, said rod having a notch with which a stud cooperates integral with the pallet which is guided, on the one hand, on a shoulder of the distribution wall and, on the other hand, in a throat of an element of the body.
- Figure 1 is an elevational view of a screwdriver according to the invention.
- Figure 2 is an enlarged sectional view scale of the rear end of the screwdriver of the figure 1.
- Figure 3 is a sectional view along the line 3-3 of figure 2.
- Figure 4 is a similar sectional view in Figure 3, the screwdriver being controlled for a left rotation.
- Figure 5 is a schematic view of the command to change the direction of rotation of the motor.
- Figure 6 is a sectional view along the line 6-6 of Figure 5.
- Figure 7 is a sectional view along the line 7-7 of figure 5.
- Figure 8 is a schematic view of the command to change the direction of rotation of the motor, the latter occupying a position for rotation at left of said engine.
- Figure 9 is a sectional view along the line 9-9 of figure 8.
- the screwdriver shown in the figures includes a body 1 with, at one end, means 3 for receiving a tool and, at the other end, a nozzle 2 intended to receive a compressed air inlet pipe.
- control trigger 5 On the body 1 is articulated, on an axis 4, control trigger 5.
- a pusher 6 for changing the direction of rotation of a air motor 12.
- the end piece 2 is pierced with a conduit 7 in which is wedged a ring 10 on which is supported one end of a spring 8, the other end of which cooperates with the ball 9 of a valve bearing on a seat 14.
- the body 1 is provided with a transverse bore 17 in which a finger slides 16, including one end is likely to push the ball 9 to the valve opening, while the other end door against the trigger 5, a seal 18 being mounted on the finger and being held by a shoulder 19.
- a channel 20 made in an element 32 of the body 1 and which opens into an opening 33 of a pallet 30.
- the pusher 6 (see Figures 3 and 4) has a rod 22 slidingly mounted in a bore 23 of element 32 against the action of a spring compression 24 resting on the bottom of said bore and said rod 22 is provided with a groove 25 in which is inserted a seal 26.
- the rod 22, at an intermediate point of its length has a notch 28 in which is engaged a stud 29 integral with the pallet 30 which, at one end, is guided on a shoulder 31 of a distribution and exhaust wall 36 and, to the other end, in a groove 45 of the element 32.
- the pallet 30 is pierced with a channel 34 opening at one end, on the one hand, and in the opening 33, on the other hand.
- an opening exhaust 41 In the wall 36 is made an opening exhaust 41 and, diametrically opposite, two openings 39 and 40 which allow, first, the intake for the rotation of the engine 12 in the direction normal (right rotation), while the other generates admission for the opposite direction of rotation (rotation to the left).
- the two openings 39 and 40 open on a conduit 44 formed in element 32 and communicating with a conduit 43 opening on one end rear of body 1 provided with exhaust openings 15 with interposition of noise reducing washers 21.
- the element 32 is pierced with a conduit 42 in communication with the opening 41 and the conduit 43.
- the pallet 30 is likely to port selectively opening 40 with air intake compressed by channel 20, opening 33 and channel 34 or opening 39 through the same elements.
- the user needs to unscrewing, it presses pusher 6 which, by its notch 28, drives the stud 29 so that the pallet 30 (see figures 8 and 9) pivots, the opening 39 then being fed through the channel 34; the main exhaust works in the same way only when the motor is powered for the direction of normal rotation, while the secondary exhaust takes place through the opening 40, the conduit 44, the conduit 43 and the openings 15.
Description
La présente invention se rapporte à une
visseuse pneumatique conformément au préambule de la revendication 1 (voir GB 2 157 213).The present invention relates to a
pneumatic screwdriver in accordance with the preamble of claim 1 (see
La présente invention se rapporte à des visseuses présentant un corps allongé avec, à une extrémité, une arrivée d'air comprimé et, à l'autre extrémité, une tête destinée à recevoir un outil de vissage, le corps présentant une détente articulée destinée à permettre l'admission d'air comprimé pour commander un moteur pneumatique.The present invention relates to screwdrivers having an elongated body with, at one end, a compressed air supply and, at the other end, a head intended to receive a screwing tool, the body having an articulated trigger intended to allow compressed air intake to control a pneumatic motor.
Lorsqu'on appuie sur la détente, l'air comprimé étant admis, le moteur entraíne la tête afin de permettre le vissage. Il est arrivé que celui-ci ne soit pas correctement effectué et il faut, dans ce cas, procéder à un dévissage. Les visseuses comportent, généralement, un moyen de commande de l'inversion du sens de rotation du moteur, mais celui-ci est relativement complexe.When the trigger is pressed, the air tablet being admitted, the motor drives the head so to allow screwing. It happened that this one is not done correctly and in in this case, unscrew. The screwdrivers include, usually a reversal control means the direction of rotation of the motor, but this is relatively complex.
La technique antérieure connait, par le brevet GB n° 2 157 213 un outil pneumatique qui comprend un système de reversibilité du sens de rotation du moteur comprenant une palette reliée à une bague située à l'extérieur du corps de l'outil, la palette présentant deux ouvertures dont l'une peut être placée en regard d'une ouverture de distribution d'air comprimé pour le sens normal de rotation de l'outil et l'autre pouvant être placée en regard de l'autre pour l'inversion du sens de rotation.The prior art knows, by the GB Patent No. 2,157,213 a pneumatic tool which includes a reversibility system of the direction of rotation of the motor comprising a pallet connected to a ring located on the outside of the tool body, the palette having two openings, one of which can be placed opposite a compressed air distribution opening for the normal direction of rotation of the tool and the other can be placed opposite each other for the inversion of the sense of rotation.
Une telle disposition présente l'inconvénient que l'utilisateur est obligé de s'aider de ses deux mains s'il veut changer de sens de rotation aussi bien dans un sens que dans l'autre, ce qui est peu pratique.Such an arrangement has the disadvantage that the user is obliged to use his two hands if he wants to change direction of rotation as well in one direction than in the other, which is impractical.
De plus, s'il maintient ouverte l'admission d'air comprimé au moment où il agit sur la bague pour changer le sens de rotation, il se forme un échappement résiduel qui tend à bloquer la palette et qui perturbe le fonctionnement.In addition, if he keeps the admission open compressed air when it acts on the ring to change the direction of rotation, an exhaust is formed residual which tends to block the pallet and which disturbs the operation.
L'un des buts de l'invention est de remédier à ces inconvénients ou, plus précisément, de réaliser un système d'inversion pratique, fiable et moins complexe que ceux de la technique précédente.One of the aims of the invention is to remedy to these disadvantages or, more precisely, to realize a practical, reliable and less complex than those of the previous technique.
La visseuse, selon l'invention, est du type comprenant un corps avec, à une extrémité, des moyens pour le branchement d'un tuyau d'arrivée d'air comprimé, un moteur pneumatique entraínant, par une liaison cinématique, un outil situé à l'autre extrémité, une détente mobile sur le corps et commandant, à travers une ouverture d'admission d'une paroi de distribution d'air comprimé, l'admission au moteur, ladite paroi comportant une ouverture d'échappement reliée par des conduits à un échappement de la visseuse et des moyens de commande de l'inversion du sens de rotation du moteur pneumatique comprenant un poussoir situé à l'extérieur du corps au voisinage de la détente commandant une palette coopérant avec la paroi de distribution d'air comprimé ; la dite paroi de distribution comportant une seconde ouverture d'admission pour l'inversion du sens de rotation du moteur de manière que, lorsque ledit poussoir n'est pas sollicité, le moteur tourne dans le sens normal, tandis que lorsqu'il est sollicité, il commande l'inversion du sens de rotation du moteur, ladite visseuse étant caractérisée en ce que le poussoir est mobile contre l'action de moyens élastiques la palette est percée d'un conduit en communication avec l'arrivée d'air comprimé et s'ouvrant sur la paroi de distribution en regard de l'ouverture d'admission, tandis que lorsque le poussoir est sollicité contre l'action des moyens élastiques, la palette est déplacée afin que son conduit soit disposé en regard de la seconde ouverture, lesdites ouvertures d'admission étant en communication avec les conduits d'échappement afin que, lorsque l'une est en communication avec l'air comprimé, l'autre constitue un échappement secondaire.The screwdriver, according to the invention, is of type comprising a body with, at one end, means for connecting an air inlet pipe compressed, a pneumatic motor driving, by a kinematic link, a tool located at the other end, a mobile trigger on the body and commanding, through a distribution wall intake opening compressed air, engine intake, said wall having an exhaust opening connected by leads to an exhaust of the screwdriver and means for reversing the direction of rotation of the motor tire comprising a pusher located outside the body in the vicinity of the trigger controlling a pallet cooperating with the wall of compressed air distribution; the said distribution wall comprising a second intake opening for reversing the direction of rotation of the motor so that when said push-button is not pressed, the engine is running in the normal sense, while when requested, it controls the reversal of the direction of rotation of the motor, said screwdriver being characterized in that the pusher is movable against the action elastic means the pallet is pierced a duct in communication with the air supply compressed and opening on the distribution wall next to the intake opening, while when the pusher is pressed against the action of the means elastic, the pallet is moved so that its conduit is arranged opposite the second opening, said admission openings being in communication with the exhaust pipes so that when one is in communication with the compressed air, the other constitutes a secondary exhaust.
Suivant une caractéristique constructive, le poussoir est solidaire d'une tige montée coulissante dans un alésage du corps contre l'action d'un ressort de compression inséré dans ledit alésage, ladite tige comportant une encoche avec laquelle coopère un téton solidaire de la palette qui est guidée, d'une part, sur un épaulement de la paroi de distribution et, d'autre part, dans une gorge d'un élément du corps. According to a constructive characteristic, the pusher is integral with a sliding mounted rod in a body bore against the action of a spring of compression inserted into said bore, said rod having a notch with which a stud cooperates integral with the pallet which is guided, on the one hand, on a shoulder of the distribution wall and, on the other hand, in a throat of an element of the body.
L'invention va maintenant être décrite avec plus de détails en se référant à un mode de réalisation particulier donné à titre d'exemple seulement et représenté aux dessins annexés, dans lesquels :The invention will now be described. in more detail with reference to an embodiment particular given as an example only and shown in the accompanying drawings, in which:
Figure 1 est une vue en élévation d'une visseuse, selon l'invention.Figure 1 is an elevational view of a screwdriver according to the invention.
Figure 2 est une vue en coupe à plus grande échelle de l'extrémité arrière de la visseuse de la figure 1.Figure 2 is an enlarged sectional view scale of the rear end of the screwdriver of the figure 1.
Figure 3 est une vue en coupe suivant la ligne 3-3 de la figure 2.Figure 3 is a sectional view along the line 3-3 of figure 2.
Figure 4 est une vue en coupe similaire à la figure 3, la visseuse étant commandée pour une rotation à gauche.Figure 4 is a similar sectional view in Figure 3, the screwdriver being controlled for a left rotation.
Figure 5 est une vue schématique de la commande du changement de sens de rotation du moteur.Figure 5 is a schematic view of the command to change the direction of rotation of the motor.
Figure 6 est une vue en coupe suivant la ligne 6-6 de la figure 5.Figure 6 is a sectional view along the line 6-6 of Figure 5.
Figure 7 est une vue en coupe suivant la ligne 7-7 de la figure 5.Figure 7 is a sectional view along the line 7-7 of figure 5.
Figure 8 est une vue schématique de la commande du changement de sens de rotation du moteur, celle-ci occupant une position pour une rotation à gauche dudit moteur.Figure 8 is a schematic view of the command to change the direction of rotation of the motor, the latter occupying a position for rotation at left of said engine.
Figure 9 est une vue en coupe suivant la ligne 9-9 de la figure 8. Figure 9 is a sectional view along the line 9-9 of figure 8.
La visseuse représentée sur les figures comprend
un corps 1 avec, à une extrémité, des moyens 3 de
réception d'un outil et, à l'autre extrémité, un embout 2
destiné à recevoir un tuyau d'arrivée d'air comprimé.The screwdriver shown in the figures includes
a body 1 with, at one end, means 3 for
receiving a tool and, at the other end, a
Sur le corps 1 est articulé, sur un axe 4,
une détente de commande 5.On the body 1 is articulated, on an
Sur le corps 1 est monté mobile un poussoir 6
de commande de changement du sens de rotation d'un
moteur pneumatique 12.On the body 1 is movably mounted a
L'embout 2 est percé d'un conduit 7 dans
lequel est calée une bague 10 sur laquelle prend appui
l'une des extrémités d'un ressort 8, dont l'autre extrémité
coopère avec la bille 9 d'un clapet portant sur
un siège 14. Le corps 1 est pourvu d'un perçage transversal
17 dans lequel coulisse un doigt 16, dont une
extrémité est susceptible de pousser la bille 9 pour
l'ouverture du clapet, tandis que l'autre extrémité
porte contre la détente 5, un joint d'étanchéité 18
étant monté sur le doigt et étant maintenu par un épaulement
19.The
En arrière du siège 14, il est prévu un
canal 20 pratiqué dans un élément 32 du corps 1 et
qui débouche dans une ouverture 33 d'une palette 30.Behind the
Le poussoir 6 (voir figures 3 et 4) comporte
une tige 22 montée coulissante dans un alésage 23 de
l'élément 32 contre l'action d'un ressort de
compression 24 prenant appui sur le fond dudit alésage
et ladite tige 22 est pourvue d'une gorge 25 dans
laquelle est inséré un joint 26. The pusher 6 (see Figures 3 and 4) has
a
La tige 22, en un point intermédiaire de
sa longueur, comporte une encoche 28 dans laquelle
est engagé un téton 29 solidaire de la palette 30 qui,
à une extrémité, est guidée sur un épaulement 31 d'une
paroi 36 de distribution et d'échappement et, à l'autre
extrémité, dans une gorge 45 de l'élément 32.The
La palette 30 est percée d'un canal 34
s'ouvrant à une extrémité, d'une part, et dans l'ouverture
33, d'autre part.The
Dans la paroi 36 est pratiquée une ouverture
d'échappement 41 et, diamétralement opposées, deux
ouvertures 39 et 40 qui permettent, la première,
l'admission pour la rotation du moteur 12 dans le sens
normal (rotation à droite), tandis que l'autre engendre
l'admission pour le sens de rotation opposé (rotation
à gauche).In the
Les deux ouvertures 39 et 40 débouchent
sur un conduit 44 pratiqué dans l'élément 32 et communiquant
avec un conduit 43 s'ouvrant sur une extrémité
arrière du corps 1 pourvue d'ouvertures d'échappement 15
avec interposition de rondelles réductrices de bruit 21.The two
L'élément 32 est percé d'un conduit 42
en communication avec l'ouverture 41 et le conduit 43.The
Comme on le voit aux figures 5 et 8, la
palette 30 est susceptible de mettre en communication
sélectivement l'ouverture 40 avec l'admission d'air
comprimé par le canal 20, l'ouverture 33 et le canal 34
ou l'ouverture 39 à travers les mêmes éléments. As seen in Figures 5 and 8, the
En fonctionnement normal, on appuie sur
la détente 5 de sorte que le doigt 16 dégage la bille 9
de son siège 14, l'air comprimé alimentant le moteur 12
par l'ouverture 40, tandis que l'échappement principal
s'effectue par l'ouverture 41, le conduit 42, le conduit
43, à travers les rondelles 21 et les ouvertures 15,
et l'échappement secondaire par l'ouverture 39, le
conduit 44, le conduit 43 et les ouvertures 15.In normal operation, press
the
Si l'utilisateur a besoin de procéder à
un dévissage, il appuie sour le poussoir 6 qui, par
son entaille 28, entraíne le téton 29 de sorte que
la palette 30 (voir figures 8 et 9) pivote, l'ouverture
39 se trouvant alors alimentée à travers le canal 34 ;
l'échappement principal s'effectue de la même façon
que lorsque le moteur est alimenté pour le sens de
rotation normal, tandis que l'échappement secondaire
s'effectue à travers l'ouverture 40, le conduit 44,
le conduit 43 et les ouvertures 15.If the user needs to
unscrewing, it presses
Dès que le poussoir 6 est relâché, la palette
30, avec l'action du ressort 24, revient dans
sa position initiale.As soon as the
Bien entendu, l'invention n'est pas limitée
au mode de réalisation qui vient d'être décrit et représenté.
On pourra y apporter de nombreuses modifications
de détail sans sortir pour cela du cadre de l'invention
conformément aux revendications 1 et 2.Of course, the invention is not limited
to the embodiment which has just been described and shown.
We can make many modifications
detail without departing from the scope of the invention
according to
Claims (2)
- A pneumatic screwdriver of the type comprising a body (1) with, at one end, means (2) for the connection of an inlet pipe for compressed air, a pneumatic motor (12) driving, by a kinematic connection, a tool situated at the other end, a sear (5) movable on the body (1) and controlling, through an intake aperture (40) of a distribution wall for compressed air (36) the intake to the motor, the said wall comprising an outlet aperture (41) connected by ducts (42, 43) to an outlet (15) of the screwdriver and means for controlling the inversion of the direction of rotation of the pneumatic motor, comprising a push button (6) situated outside the body (1) in the vicinity of the sear (5) controlling a vane (30) cooperating with the wall for the distribution of compressed air (36); the said distribution wall comprising a second intake aperture (40) for the inversion of the direction of rotation of the motor (12) so that, when the said push button (6) is not stressed, the motor (12) turns in the normal direction, whereas when it is stressed it controls the inversion of the direction of rotation of the motor (12),
characterised in that the push button (6) is movable against the action of elastic means (24), the vane (30) is pierced by a duct (34) communicating with the intake of compressed air and opening onto the distribution wall opposite the intake aperture (40), whereas when the push button (6) is stressed against the action of the elastic means (24), the vane (30) is displaced so that its duct (34) is disposed opposite the second aperture (39), the said intake apertures (39, 40) being in communication with the outlet ducts (42, 43) so that, when one is in communication with the compressed air, the other forms a secondary outlet. - A pneumatic screwdriver according to Claim 1,
characterised in that the push button (6) is joined to a rod (22) mounted to slide in a bore (23) of the body against the action of a compression spring (24) inserted into the said bore, the said rod comprising a notch (28) with which there cooperates a dog point (29) joined to the vane (30), which is guided, firstly, on a shoulder (31) of the distribution wall (36) and, secondly, in a groove (45) of a component (32) of the body (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9614236A FR2755892B1 (en) | 1996-11-21 | 1996-11-21 | IMPROVED PNEUMATIC SCREWDRIVER |
| FR9614236 | 1996-11-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0844052A1 EP0844052A1 (en) | 1998-05-27 |
| EP0844052B1 true EP0844052B1 (en) | 2002-01-16 |
Family
ID=9497871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19970402663 Expired - Lifetime EP0844052B1 (en) | 1996-11-21 | 1997-11-06 | Pneumatic screwdriver |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0844052B1 (en) |
| DE (1) | DE69709612T2 (en) |
| ES (1) | ES2167693T3 (en) |
| FR (1) | FR2755892B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1137865B1 (en) * | 1998-12-07 | 2003-04-02 | Frederick L. Zinck | Reversible pneumatic motor assembly |
| US6431846B1 (en) | 1999-12-06 | 2002-08-13 | Frederick L. Zinck | Reversible pneumatic motor assembly |
| EP1867438A3 (en) * | 2000-11-17 | 2009-01-14 | Makita Corporation | Impact power tools |
| WO2009071131A1 (en) * | 2007-12-07 | 2009-06-11 | Etablissements Georges Renault | Screwing/unscrewing tool comprising means for reversing the direction of rotation that can be actuated by successive translational movements having the same sense and direction |
| US11541525B2 (en) * | 2020-06-22 | 2023-01-03 | Snap-On Incorporated | Reversing mechanism for a power tool |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2733687A (en) * | 1956-02-07 | schmid | ||
| US2715889A (en) * | 1952-11-05 | 1955-08-23 | Master Pneumatic Tool Company | Reversing pneumatic motor |
| US3298284A (en) * | 1964-09-11 | 1967-01-17 | Rockwell Mfg Co | Servo operated reversing tool |
| SE440759B (en) * | 1984-03-20 | 1985-08-19 | Atlas Copco Ab | REVERSIBLE PRESSURE AIR TOOL |
| FR2571094B1 (en) * | 1984-10-02 | 1988-12-02 | Maire Charles Ets | IMPROVEMENTS IN PNEUMATIC TIGHTENING TOOLS. |
| DE3503032C2 (en) * | 1985-01-30 | 1994-04-07 | Gardner Denver Gmbh | Air motor for pneumatic screwdrivers |
-
1996
- 1996-11-21 FR FR9614236A patent/FR2755892B1/en not_active Expired - Fee Related
-
1997
- 1997-11-06 EP EP19970402663 patent/EP0844052B1/en not_active Expired - Lifetime
- 1997-11-06 DE DE1997609612 patent/DE69709612T2/en not_active Expired - Fee Related
- 1997-11-06 ES ES97402663T patent/ES2167693T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2167693T3 (en) | 2002-05-16 |
| FR2755892A1 (en) | 1998-05-22 |
| EP0844052A1 (en) | 1998-05-27 |
| DE69709612T2 (en) | 2002-08-14 |
| FR2755892B1 (en) | 1999-01-08 |
| DE69709612D1 (en) | 2002-02-21 |
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