NO803257L - DRILLING EQUIPMENT WITH WATER SPRAY PROTECTED ELECTRIC DRIVE ENGINE - Google Patents
DRILLING EQUIPMENT WITH WATER SPRAY PROTECTED ELECTRIC DRIVE ENGINEInfo
- Publication number
- NO803257L NO803257L NO803257A NO803257A NO803257L NO 803257 L NO803257 L NO 803257L NO 803257 A NO803257 A NO 803257A NO 803257 A NO803257 A NO 803257A NO 803257 L NO803257 L NO 803257L
- Authority
- NO
- Norway
- Prior art keywords
- filter
- outlet
- water spray
- nozzle
- cooling
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 21
- 239000007921 spray Substances 0.000 title claims description 14
- 238000001816 cooling Methods 0.000 claims description 30
- 230000035515 penetration Effects 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000001914 calming effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/001—Housing of the drill, e.g. handgrip
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
Description
Oppfinnelsen angår en boreinnretning med sprutvannsbeskyttet elektrisk motor og kjølt motorrom. The invention relates to a drilling device with a splash-proof electric motor and a cooled engine compartment.
Boreinnretninger og andre elektrisk drevne håndverktøy utsettes i mange brukstilfeller for fuktighet Drilling devices and other electrically powered hand tools are exposed to moisture in many cases of use
ved vannsprøyt eller lignende. Denne vannsprøyt kan eksempelvis være en uønsket bivirkning ved kjølingen av bearbeidelsesstedet. Likeledes oppstår det som kjent også vannsprøyt ved bruk iav håndverktøy i regnvær. by water spray or the like. This water spray can, for example, be an unwanted side effect when cooling the processing site. Similarly, as is well known, water spray also occurs when using iav hand tools in rainy weather.
De vanligvis av en elektrisk drivmotor drevne boreinnretninger kjøles normalt med luft. Ved kjente boreinnretninger foreligger derved det problem at det med kjøle- The drilling devices, which are usually driven by an electric drive motor, are normally cooled with air. With known drilling devices, there is thus a problem that with cooling
luften samtidig trenger inn vannsprøyt i motorrommet slik at brukeren utsettes for den latente fare å komme i kontakt the air simultaneously penetrates water spray into the engine compartment so that the user is exposed to the latent danger of coming into contact
med utillatelig høye berøringsspenninger.with unacceptably high contact voltages.
Dette problem ble ved boreinnretninger med trefase-eller kondensatormotorer, som har ulempen med en ytterst ugunstig effektkarakteristikk for boreinnretninger, imøte-kommet med et hus bestående av to skall, slik at husets indre skall' kapsler motorrommet vanntett. This problem was met with drilling rigs with three-phase or capacitor motors, which have the disadvantage of an extremely unfavorable power characteristic for drilling rigs, with a housing consisting of two shells, so that the inner shell of the housing encapsulates the engine compartment watertight.
For kjøling føres luft mellom det indre og ytre skall.For cooling, air is passed between the inner and outer shell.
Denne såkalte mantelluf ting gir ved den nevnte motortype i mange tilfeller en utilstrekkelig kjøling slik This so-called mantle air thing in the mentioned engine type in many cases provides insufficient cooling like this
at den absolutt ikke er egnet for de mange boreinnretninger som er utrustet med universalmotorer. Universalmotorer utmerker seg på den ene side med en gunstig effektkarakteristikk og har på den annen side i forhold til trefasemotorer, liten vekt og lite volum. that it is absolutely not suitable for the many drilling rigs equipped with universal motors. Universal motors stand out on the one hand with a favorable power characteristic and, on the other hand, compared to three-phase motors, have low weight and small volume.
Oppfinnelsen tar sikte på å frembringe en boreinnretning med elektrisk drivmotor som har en beskyttelse mot vannsprøyt, i kombinasjon med en også for universalmotorer virksom luftkjøling. The invention aims to produce a drilling device with an electric drive motor which has protection against water spray, in combination with air cooling which is also effective for universal motors.
Ifølge oppfinnelsen løses oppgaven ved at det for kjøling av motoren er anordnet en innsugningsstuss for å According to the invention, the task is solved by providing an intake nozzle for cooling the engine
lede luften inn i motorrommet idet det foran innsugningsstussen er anordnet en avledningsplate, i innsugningsstussen er anordnet minst ett filter og hvor det mellom dette filter og motorrommet er anordnet en labyrintføring og hvor det ved kjøleluftens uttakssted er anordnet en uttaksstuss som avleder lead the air into the engine compartment, where a diverting plate is arranged in front of the intake nozzle, at least one filter is arranged in the intake nozzle and where a labyrinth guide is arranged between this filter and the engine compartment and where an outlet nozzle is arranged at the outlet of the cooling air which diverts
kjølestrømmen og som har et stengeelement for å hindre at det trenger vannsprøyt inn gjennom uttaksstussen. the cooling flow and which has a closing element to prevent water spray from entering through the outlet connection.
En inntaksstuss•for kjøleluften, hvis innsugningsåpning er avskjermet med en avledningsplate og har et første filter, hindrer en direkte inntrengning av vannsprøyt, som muligens foreligger lik en fontene, i det videre forløp'for kjølestrømmen. I tillegg virker den av innsugningsstussen dannede kanal som et beroligende rom for den innsugde kjøle-luft, hvor den fuktighet som eventuelt ikke er holdt tilbake av det første filter, kondenserer.. Denne kan f.eks. ledes bort fra innsugningsstussen ved hjelp av kjente midler, f .eks. énveisventiler. An intake nozzle for the cooling air, the intake opening of which is shielded with a diverting plate and has a first filter, prevents a direct ingress of water spray, possibly similar to a fountain, in the further course of the cooling flow. In addition, the channel formed by the intake nozzle acts as a calming space for the sucked in cooling air, where the moisture that is possibly not retained by the first filter condenses. This can e.g. is led away from the intake nozzle using known means, e.g. one-way valves.
For å sikre at kjølestrømmen ledes gjennom innsugningsstussen for enhver arbeidsstilling av boreinnretningen, To ensure that the cooling flow is directed through the suction nozzle for any working position of the drilling rig,
er stussen hensiktsmessig utformet fleksibel eller svingbar, slik at innsugningsåpningen lar seg innstille mot den ret- is the spigot appropriately designed to be flexible or pivotable, so that the intake opening can be adjusted to the correct
ning som til enhver tid påvirkes minst av vannsprøyt. ning that is least affected by water spray at all times.
Kjølestrømmen som forfiltreres via innsugningsstussen, henholdsvis de til denne hørende midler, trenger deretter inn i en labyrintføring hvor den av de anordninger som her befinner seg, omledes flere ganger meget sterkt, The cooling flow that is pre-filtered via the intake nozzle, respectively the means belonging to this, then penetrates into a labyrinth guide where it is redirected several times very strongly by the devices located here,
noe som bevirker en utskilling av vanndråper fra luftstrøm-men. De enkelte kammere i labyrintføringen er slik anordnet at oppsamlet fuktighet ikke på noen måte kan trenge inn i motorrommet i noen som helst arbeidsstilling av håndverktøyet. which causes a separation of water droplets from the air stream. The individual chambers in the labyrinth guide are arranged in such a way that accumulated moisture cannot in any way penetrate into the engine compartment in any working position of the hand tool.
Innsugningsstussen er koblet til boreinnretningensThe suction nozzle is connected to that of the drilling rig
N N
husdel som inneholder labyrintføringen, eksempelvis via en flensforbindelse. For håndterligheten er det hensiktsmessig å utforme denne kobling med en kodifisert innstikkforbindelse som samtidig er tilordnet en innstikksforbindelse for strøm-tilførselen. Herved kan det på enkel måte også sikres at strømtilførselen til motoren er avbrudt når tilkoblingsstus- housing part that contains the labyrinth guide, for example via a flange connection. For ease of handling, it is appropriate to design this connection with a codified plug-in connection which is also assigned a plug-in connection for the power supply. In this way, it can also be ensured in a simple way that the power supply to the motor is interrupted when the connection
sen ikke er tilkoblet slik at drift av håndverktøyet i denne tilstand er utelukket. is not connected so that operation of the hand tool in this state is excluded.
Den tørre luftstrøm som trenger inn i motorrommetThe dry air flow that penetrates into the engine compartment
fra labyrintføringen for den indre ventilasjon av drivmoto-from the labyrinth guide for the internal ventilation of the drive motor
ren, suges eksempelvis av en radialventilator på motorsiden fra motorrommet og ledes ut i det fri via en uttaksstuss. clean, is sucked in, for example, by a radial fan on the engine side from the engine compartment and led out into the open air via an outlet connection.
Denne har et stengeledd som har til oppgave,ved boreinnret ningens stillstand, og hindre inntrengning av vannsprøyt eller fuktighet via uttaksstussen, inn i motorrommet. This has a locking joint whose task, when the drilling rig is at a standstill, is to prevent the penetration of water spray or moisture via the outlet connection into the engine compartment.
Inntaksstussen har fortrinnsvis en 180-graders krumning for å lede kjølestrømmen. På denne måte sikres en tilstrekkelig omledning av kjølestrømmen mellom inntaksåp-ningen og labyrintføringen, uavhengig av boreinnretningens bruksstilling. The inlet nozzle preferably has a 180-degree bend to direct the cooling flow. In this way, a sufficient diversion of the cooling flow between the intake opening and the labyrinth guide is ensured, regardless of the use position of the drilling device.
For samtidig å sikre at uttaksstussen for den kjøleluft som forlater motorrommet likeledes forhindrer en inntrengning av vannsprøyt og lignende i enhver bruksstilling av boreinnretningen, især ved stillstand, har uttaksstussen ifølge et ytterligere forslag ved oppfinnelsen en 180-graders krumning for ombøyning av kjølestrømmen. In order at the same time to ensure that the outlet for the cooling air leaving the engine compartment also prevents the ingress of water spray and the like in any position of use of the drilling device, especially at standstill, according to a further proposal of the invention, the outlet has a 180-degree curvature to deflect the cooling flow.
Den fuktighet som eventuelt måtte ha trengt gjennom det første filter inn i inntaksstussen, kan med fordel i stor utstrekning stoppes av et filter som er anordnet i geometrisk avstand fra det første filter. Det mellom disse to filtere bestående oppsamlingsrom opptar de direkte til-bakeholdte vannrester. Any moisture that may have penetrated through the first filter into the intake nozzle can advantageously be stopped to a large extent by a filter arranged at a geometric distance from the first filter. The collection space between these two filters takes up the retained water residues directly.
Stengeleddet i uttaksstussen er fortrinnsvis utformet som filter. For eventuelt å kunne lede bort vann som er trengt frem til filteret, kan det i dette filters område eksempelvis anordnes en som en énveisventil utformet uttaks-åpning. The locking joint in the outlet connection is preferably designed as a filter. In order to eventually be able to divert water that has penetrated to the filter, an outlet opening designed as a one-way valve can, for example, be arranged in this filter's area.
Ifølge et ytterligere forslag av oppfinnelsen er en ventil anordnet som stengeledd i uttaksstussen. Hertil egner blant annet klappventiler seg, som lukker uttaksstussen når boreinnretningen ikke er i drift. Dette forhindrer dermed også inntrengningen av vann eller fuktighet gjennom uttaksstussen ved boreinnretningens stillstand. According to a further proposal of the invention, a valve is arranged as a closing joint in the outlet connection. Flap valves are suitable for this, for example, which close the outlet when the drilling rig is not in operation. This also prevents the ingress of water or moisture through the outlet connection when the drilling rig is at a standstill.
Oppfinnelsen beskrives i henhold til tegningen som gjengir et eksempel og hvor fig. 1 skjematisk viser en boreinnretning og fig. la viser detaljen A på fig. 1 med et annet stengeledd. The invention is described according to the drawing which reproduces an example and where fig. 1 schematically shows a drilling device and fig. la shows the detail A in fig. 1 with another locking joint.
Den på fig. 1 viste boreinnretning har et med 1 betegnet hus, som omfatter et fremre avsnitt 2 på verktøy-siden, hvori er lagret en motor 3, og et bakre avsnitt 4 hvis indre rom har en med 5 betegnet labyrintføring for kjølestrømmen. Labyrintføringen 5 dannes på sin side av ribber 6. The one in fig. The drilling device shown in 1 has a housing denoted by 1, which comprises a front section 2 on the tool side, in which a motor 3 is stored, and a rear section 4 whose inner space has a labyrinth guide, denoted by 5, for the cooling flow. The labyrinth guide 5 is formed on its side by ribs 6.
I det bakre avsnitts 4 område er en generelt medIn the rear section 4 area, one is generally included
7 betegnet inntaksstuss forbundet med huset 1, idet et første filter 8 er anordnet i dennes innsugningsåpning. 7 denoted the intake connection connected to the housing 1, a first filter 8 being arranged in its intake opening.
En ringskive 9 hindrer at filteret 8 kan trenge for langt inn i inntaksstussen 7. Videre er et finfilter 11 anordnet i inntaksstussen 7, i geometrisk avstand fra det første filter 8 som fortrinnsvis er utformet som grovfilter. I geometrisk avstand fra filteret 8 befinner det seg likeledes, foran inntaksstussens 7 innsugningsåpning, en eksempelvis til huset festet avledningsplate 12 som forhindrer en direkte inntrengning av vannsprøyt inn i innsugningsåpningen. An annular disc 9 prevents the filter 8 from penetrating too far into the intake nozzle 7. Furthermore, a fine filter 11 is arranged in the intake nozzle 7, at a geometric distance from the first filter 8 which is preferably designed as a coarse filter. At a geometric distance from the filter 8, there is likewise, in front of the suction opening of the intake nozzle 7, a diversion plate 12 attached to the housing, for example, which prevents a direct penetration of water spray into the suction opening.
En på motorakselen 3a festet radialventilator 13 transporterer den med piler antydede kjølestrøm fra motorrommet 14 via en ringkanal 15 som omgir radialventilatoren 13 på husets side, inn i en uttaksstuss ut til det fri og som er tilordnet husets 1 fremre avsnitt 2 og generelt betegnet med 16. Derved trenger kjølestrømmen gjennom et ytterligere filter 17 som holdes av en ring 22. Dette filters primære oppgave er å hindre en inntrengning av fuktighet via uttaksstussen 16 inn i innretningens indre når boreinnretningen ikke er i drift. Eventuelt vann som kan være trengt inn til filteret 17 og oppfanget her, kan unnvike fra en utløpsåpning 18 som er anordnet på siden. Videre kan det på tegningen sees et i boreinnretningen innspent verktøy, eksempelvis et bor 19. A radial ventilator 13 attached to the motor shaft 3a transports the cooling flow indicated by arrows from the engine compartment 14 via an annular duct 15 which surrounds the radial ventilator 13 on the side of the housing, into an outlet connection out into the open and which is assigned to the front section 2 of the housing 1 and generally denoted by 16 Thereby, the cooling flow penetrates through a further filter 17 which is held by a ring 22. This filter's primary task is to prevent the penetration of moisture via the outlet connection 16 into the interior of the device when the drilling device is not in operation. Any water that may have penetrated to the filter 17 and collected here can escape from an outlet opening 18 which is arranged on the side. Furthermore, in the drawing, a tool clamped into the drilling device can be seen, for example a drill 19.
Med den viste anordning blir kjølestrømmen under boreinnretningens drift ledet inn mellom avledningsplaten 12 og inntaksstussens 7 innsugningsåpning, via filteret 8 i inntaksstussens kanal. Vann som måtte passere filteret 8 vil i alle fall holdes tilbake i det neste trinn, i.det minste mesteparten, av det etterfølgende finfilter 11 i det mellom disse to filtere dannede oppsamlingsrom 21. With the device shown, the cooling flow during the operation of the drilling device is led in between the diverting plate 12 and the inlet nozzle 7's suction opening, via the filter 8 in the inlet nozzle's channel. Water that has to pass the filter 8 will in any case be retained in the next step, at least most of it, by the subsequent fine filter 11 in the collection space 21 formed between these two filters.
Således blir kjølestrømmen flere ganger abrupt svingt rundt via labyrintføringen 5 slik at de siste fuktig-hetspartikler slår seg ned her. Mulig fuktighet som kan ha slått seg ned i dråpeform i inntaksstussen 7, forhindres av labyrintføringen 5 i å kunne trenge inn i motorrommet 14 i enhver stilling av boreinnretningen. Thus, the cooling flow is abruptly swung around several times via the labyrinth guide 5 so that the last moisture particles settle here. Possible moisture that may have settled in the form of droplets in the intake nozzle 7 is prevented by the labyrinth guide 5 from being able to penetrate into the engine compartment 14 in any position of the drilling device.
Ved ekstreme mengder vannsprøyt kan det av ytterligere sikkerhetsgrunner være fordelaktig å anordne ytterligere filter og hindringer i kjølestrømsbanen før motorrommet 14. Likeledes kan et slikt tiltak være fordelaktig for uttaksstussens 16 område. In the case of extreme amounts of water spray, it may be advantageous for additional safety reasons to arrange additional filters and obstacles in the cooling flow path before the engine compartment 14. Likewise, such a measure may be advantageous for the outlet nozzle 16 area.
Slik det fremgår av fig. la, kan det i uttaksstussen 16 istedenfor et filter også anordnes en generelt med 23 betegnet ventil, som hindrer vannet etc. i å trenge inn gjennom uttaksstussen. Ventilen 23 består av en lukkeskive 24 av elastisk materiale, eksempelvis gummi, og en fjær 25 som presser skiven mot ringen 22. Ved drift av boreinnretningen heves lukkeskiven 24 av kjølestrømmen mot fjærens 25 kraft fra den viste stilling og ventilen 23 åpnes således for gjennomføring av kjølestrømmen. As can be seen from fig. 1a, instead of a filter, a valve generally denoted by 23 can also be arranged in the outlet connection 16, which prevents the water etc. from penetrating through the outlet connection. The valve 23 consists of a closing disk 24 of elastic material, for example rubber, and a spring 25 which presses the disk against the ring 22. During operation of the drilling device, the closing disk 24 is raised by the cooling flow against the force of the spring 25 from the position shown and the valve 23 is thus opened for carrying out the cooling flow.
Claims (6)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792944274 DE2944274A1 (en) | 1979-11-02 | 1979-11-02 | DRILLING DEVICE WITH SPLASH-PROTECTED ELECTRIC DRIVE MOTOR |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO803257L true NO803257L (en) | 1981-05-04 |
Family
ID=6084977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO803257A NO803257L (en) | 1979-11-02 | 1980-10-31 | DRILLING EQUIPMENT WITH WATER SPRAY PROTECTED ELECTRIC DRIVE ENGINE |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS5669013A (en) |
| AU (1) | AU6254180A (en) |
| BE (1) | BE885923A (en) |
| CA (1) | CA1135390A (en) |
| DE (1) | DE2944274A1 (en) |
| DK (1) | DK462980A (en) |
| ES (1) | ES496467A0 (en) |
| FI (1) | FI802038A (en) |
| FR (1) | FR2468430A1 (en) |
| GB (1) | GB2062361A (en) |
| IT (1) | IT1132518B (en) |
| NL (1) | NL8004104A (en) |
| NO (1) | NO803257L (en) |
| SE (1) | SE8006324L (en) |
| YU (1) | YU210080A (en) |
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| US20040035495A1 (en) * | 2002-08-21 | 2004-02-26 | Hessenberger Jeffrey C. | Router |
| JP4541958B2 (en) * | 2005-04-14 | 2010-09-08 | 株式会社マキタ | Impact tools |
| GB2435235A (en) * | 2007-02-09 | 2007-08-22 | Chervon Ltd | Waterproof air cooling system for power tool |
| USD611509S1 (en) | 2007-08-20 | 2010-03-09 | Milwaukee Electric Tool Corporation | Portion of a router |
| US7900661B2 (en) | 2007-08-20 | 2011-03-08 | Milwaukee Electric Tool Corporation | Plunge router and kit |
| DE102008016889B4 (en) * | 2008-04-02 | 2014-03-20 | Siemens Aktiengesellschaft | Housing attachment for an electrical machine with degree of protection IP 24W |
| US8011114B2 (en) | 2009-12-04 | 2011-09-06 | Superior Investments, Inc. | Vehicle dryer with butterfly inlet valve |
| JP5462726B2 (en) * | 2010-06-21 | 2014-04-02 | 株式会社ケーヒン | Blower unit |
| CN106112059A (en) * | 2016-08-12 | 2016-11-16 | 无锡百禾工业机器人有限公司 | A kind of semi-automatic protable driller |
| DE102017121448B3 (en) * | 2017-09-15 | 2018-12-06 | SCHOTT Diamantwerkzeuge GmbH | Cooling system for an ultrasonic drill |
| FR3083033B1 (en) * | 2018-06-22 | 2020-05-29 | Renault S.A.S | ELECTRIC MACHINE COOLED BY A DIELECTRIC HEAT LIQUID |
| JP7340385B2 (en) * | 2019-08-13 | 2023-09-07 | 株式会社やまびこ | electric work equipment |
| CN114643381B (en) * | 2022-05-19 | 2022-09-13 | 苏州卡罗伊精密刀具有限公司 | Rotary cutter convenient to dismouting and location |
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| GB1321456A (en) * | 1970-05-07 | 1973-06-27 | Gen Motors Ltd | Electric motors |
| DE2048255A1 (en) * | 1970-10-01 | 1972-04-06 | Bbc Brown Boveri & Cie | |
| DE2129424A1 (en) * | 1971-06-14 | 1972-12-21 | Reinhard Freund Maschb | Universal motor with labyrinth-like openings for ventilation for the purpose of splash protection |
| FR2177070A1 (en) * | 1972-03-22 | 1973-11-02 | Rockwell International Corp | |
| DE2617860C2 (en) * | 1976-04-23 | 1986-07-10 | Flux-Geräte GmbH, 7000 Stuttgart | Electric pump motor in splash-proof design |
-
1979
- 1979-11-02 DE DE19792944274 patent/DE2944274A1/en not_active Withdrawn
-
1980
- 1980-06-25 FI FI802038A patent/FI802038A/en not_active Application Discontinuation
- 1980-07-07 IT IT23287/80A patent/IT1132518B/en active
- 1980-07-16 NL NL8004104A patent/NL8004104A/en not_active Application Discontinuation
- 1980-07-24 GB GB8024277A patent/GB2062361A/en not_active Withdrawn
- 1980-08-21 YU YU02100/80A patent/YU210080A/en unknown
- 1980-09-10 SE SE8006324A patent/SE8006324L/en not_active Application Discontinuation
- 1980-09-19 AU AU62541/80A patent/AU6254180A/en not_active Abandoned
- 1980-10-02 JP JP13683980A patent/JPS5669013A/en active Pending
- 1980-10-17 FR FR8022280A patent/FR2468430A1/en active Pending
- 1980-10-27 CA CA000363331A patent/CA1135390A/en not_active Expired
- 1980-10-29 BE BE0/202630A patent/BE885923A/en not_active IP Right Cessation
- 1980-10-31 NO NO803257A patent/NO803257L/en unknown
- 1980-10-31 ES ES496467A patent/ES496467A0/en active Granted
- 1980-10-31 DK DK462980A patent/DK462980A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2062361A (en) | 1981-05-20 |
| IT8023287A0 (en) | 1980-07-07 |
| DE2944274A1 (en) | 1981-05-14 |
| IT1132518B (en) | 1986-07-02 |
| DK462980A (en) | 1981-05-03 |
| ES8107072A1 (en) | 1981-10-01 |
| BE885923A (en) | 1981-02-16 |
| FI802038A (en) | 1981-05-03 |
| FR2468430A1 (en) | 1981-05-08 |
| NL8004104A (en) | 1981-06-01 |
| YU210080A (en) | 1983-06-30 |
| JPS5669013A (en) | 1981-06-10 |
| CA1135390A (en) | 1982-11-09 |
| AU6254180A (en) | 1981-06-25 |
| ES496467A0 (en) | 1981-10-01 |
| SE8006324L (en) | 1981-05-03 |
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