SE1451260A1 - Device for cleaning inside of pipes - Google Patents
Device for cleaning inside of pipes Download PDFInfo
- Publication number
- SE1451260A1 SE1451260A1 SE1451260A SE1451260A SE1451260A1 SE 1451260 A1 SE1451260 A1 SE 1451260A1 SE 1451260 A SE1451260 A SE 1451260A SE 1451260 A SE1451260 A SE 1451260A SE 1451260 A1 SE1451260 A1 SE 1451260A1
- Authority
- SE
- Sweden
- Prior art keywords
- cleaning
- cleaning head
- pipe
- pipes
- drive member
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/045—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices being rotated while moved, e.g. flexible rotating shaft or "snake"
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
- E03F9/002—Cleaning sewer pipes by mechanical means
- E03F9/005—Apparatus for simultaneously pushing and rotating a cleaning device carried by the leading end of a cable or an assembly of rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Cleaning In General (AREA)
Description
15 2G 25 inte cnntect »with the inner waii of the pipa eg. in a pipa hand, thus ciecreasirig the vtfear en the nine »vaii tron: the cieaning head whieh is harticuiariy impertertt when eiaaning pipes with aireecigf riemzigerš pipa tvaiis, anti at the same tirrie aiiatriing for cieariing ef the pipa hcth fast anri efficient with a ierge feed šarce and reiativeiy fast feed movement evan it something in the pipa ehstructs the iorviia rd iriovament.
Further is achieved, hy that the cieaning head further cernprises rnuitšpie rigici cutting devices arrengad ta protrucie frcsnt a tapered rearwerci tecing end of the rasiiierit body, the advantage that the risii that the cieahing head gets caught inside the pipa is iriiniinized when being 'feci in e reverse cieening riirectien.
A further advantage is, that the rrniitipie rigiri cutting devices are preferahiy arrangeci sariaiiy ferming groups arrangeci at en erigie separated frem the áiractiorr ai the iengitudinai artis ef the ciaarišng heart. izvherehy, when ratating the rzieeriing heeci inside the pipa, the series of muitipie rigid cutting devices ere arrangeti to ieeti passihie water and/er nuiirarizeci rriateriai past the cieanihg head between the inner surface ef' the pipa anti the outar surface ei the resiiieht body when the cieaning heati rneves aieng the inside of the pipa te ha ciaenerš tiius faciiitatihg the ieeding afthe cieariing head in the pipe, Brief ciescriptien of cirawirigs Tha irwentian wii! he described :inser with reference to the attached dravøings, witere: Figure 1 shevirs schematicašiy a sactien of a device ter cieariirig ei pipes according te a first ernhaiiiritent af the inventihn, anti Figure 2 shoims schernaticaiiy a trent view of a device ftir Cleaning crf piper; acasrcširrg to figure 1.
Descrintien af preferred entheiiiments Sirniiar parts in the different íiguras era rieneted with the same reference nurnerais. aïigure Ii shews siïirernaticeiiy a partiai sectien ei a device ter cieanirig et pipes eccerriiiig to e iirst ernheríimarit ei the invehtien, where the device 2 is shewn šnsiaia a pipa ii..
The device 2 for aieaning of pigsas 1 is intericieci tar piper. 1 with a suhstantiaiiy circuiar crass sectihn.
The device 2 camprises a ciaanirig heati fi, where the cieahing head 4 during retatien efthe same about its iongítuciinai axës X is arrangeci te he iecš inside the pipe 1 et ieast in a ferward cieaning directicsri i'- pareiiei te the iengitriríirsai directieri Let the pipa 1 and tiiith the iangitudinei axis X af the 1G 3.5 2G 25 3G 3 aieariing head å suhstantäaíiy eiigrried paraiiei te and cehcentrieaiiy te the centre exis C oi the nine CL The cieaning head d cernprises a resiiient body iš vvith a tanered fenfverd racing end 8, the cieening head 4 further cernnrâsing nwštipie rigid :setting devices 1G, 12, 14, 16 that ere arranged te pretrnde frern the tanered ierwerd tacing end 8 ei the resiišent body 6. in order to aiign the rzieaning head 4 suhstentiaiiv cnnizentrieeiiy to the centre ez-:is C of the nine 1, the rediei r dirnensinns of the cieaning head 4 are adapted te the inner diameter d ei the nine 1 to he cieened, preierehiy hv that a srnaii gen äs ieft between the enter radiei surface of the resiiient body ii and the inside of the wei! 3 ei the nine 1. The riiaximurri diameter nithe eieening head 4 in the radiai r directien can for exernnie he iirnited te sense or a few mm Bess then the inner diameter d oithe nine 1. This aiignment is further nreferahiy faciiitated hy a teater fiirn es wiii he discussed in rnere deteii heinw.
Accdrding te this emhediment, the cieenhtg itead fi- is further during retatitan ei the same ahsut its iersgituciinei axäs X arrangeoi te he red his-e in e reverse cieaning directien ii pareiiei te the iongitiiciinei ciirectien L ei the nine 1 and vivith the iongittidänai escis X ei' the cieening head 4 substantiaiiy aiigned paraiiei te and cnricentriceiiy te the centre exis (I of the nine 1. in this ernhndintent, the resiiient heciy 5 itarther cdinprises a tanered reerward iecing end 18 and rnuitipie rigid eutting devices 20, 22, 24, 26 that ere erranged te nretrude frem the tapered rearvvarci 'facing end 18 e? the resiiient body 6.
By arrenging a cieaning head »fi having fnrvvard and rearward 'iacing tapered ends S; 18 with rriuitinie rigid setting devices 1G, 12, 14, 16; 2G, 22, 24, 263, it is pessihie te eieen a çzripe l hy ieeding the cieenirig head å in the ferward cieariing direetinri i~' frem the päpe erâiice inte the pipa 1 te he cieaned thus grinding ut: any ohstrncting rnateriei in the nine 1 inte fine perticies using the rigid setting devices 1G, 12, 14, 15 arrenged te nrntrtide frem the tapereci inrward facäng end 8 nithe resäiient heriy 6. On the respective ends S, 18 of the resiäient hardy 5, the muitinie rigšd setting devices li), 12, 14, 1G; 2G, 22, 24, 25, ere preferahiy arrarsged seriaiiy ica-thing groups iii), 12; 14, 16; 2G, 22; Zfi, 26 arrangeci et en angie separated frern the radiai direction r ef the cieaning head 4 (see figure 2), wiierehy the series rnnitinie rigid setting devices vrhen rcatating the cieaning head »i inside the nine 1 ere arrangeci te 'feed pessihie water V ancijer puiverized rnateriei east the cieening head 4 hetvveen the inner suriace 3 ef the nine 1 and the enter stariace ei the resiiiehi: hedy E» frem the ftarward iecing end 8 te the reerwerd facing end 13 when feeding the cieaning head Åi in the icrwerd cieaning riirestien F, and vite versa »vhen feeding the cieaning head 4 in the reverse stieening directieri R, when the eieening head 4 mnves aieng the inside ei the eine l td he cieened. The series niay he ”ieit- hand threaded" er ”right-hand threaded” depehciing en the direetinn of retatinn ef the eieeiiäng head fi. Preierahiy, the direction en* retatieix ef the cieariing head /fš is net aitered »when citanging between 10 15 20 25 30 li- ierward cieening direction ii end the reverse cieaning direetion Fi es this aiiiows 'ier fast cieening direttien changes oi the Cleaning head 4. in order to rerneve the cieaning head 4 trern the nine i, it is fett the reverse eieaning direction R, the cieening head ri titus v-.rerking its svag: threugh the nessihie narticies remaining between the cieaniitg head and the pipe eritice in a sirniiar rnenner. When the cieaning head 4 has heen removed from the nine, the gziarticies remaining in the nine l can he iiushed out using eg. pressurized water. in figure 1, the respective tapered ends S, 18 ere shnwn es being shapeti es truncated cenes, hut other tapered shapes, i.e. shehes that nerrew down towards the respective end of the resiiierit body 6, as eg. iiaiii-soiieres, cenes, etc. are aise possible to use. ?tccerding te this errihedirnent, the cieeiting head få further contnrises :nuitinie rigid cutting devices 28, 3G, 32, 34 arrangeci to protrude from the surface oi the resiiient betty 6 in e rediei ciirectien r, thus further iaciiiteting the cieening of the inner side oi the nine waii. These pessihie niuitinie rigid ctatting devices 23, 3G, 32, 34 ere preierehiy erranged syrnrnetricaiiy around the periphery of the centrei hart of the cieaning head fi, in ercier te decreese the risit for that the cieaning iieed 4 is tiited in the pipe 1 during eperation.
The device preterzihiy cornprises a drive member 35 »with vrhich the cieaning head 4 is arrengeci to he ied at ieast iertsrerd inside the nine 1 in e forward cieening tišrectien ti, and preierahiy aiso reanuard in e reverse cieaning direction R, anti tvith tfvhich the cieaning head 4 is arranged te he ahie to he roteted shout its iongituoiatai artis X, vvhere the drive member 35 iirrther is zirranged to he ehie to take up press terce in its exiei directiiïin A ainng the iongitudinei directien L ef the nine, svherehy e ieed force FM een he appiied en the cieaning head fi in the iongituriinai direetioii i. oithe nine. The cieening head <3 rrtey in operation he retateti with ter exernnie a speed ef shout íGGÛ-BGGG rotations ner minute.
The drive rnernher 3:3 is nreferehii; e wire er e rod. it wire is used, there exists speciaiiy twisted wire that ntaneges ierge press forces without that the wire is hent in its iongitudinai direction, The drive rnernher 35 is in turn driven preierahiy hy hydreuiics. Eng., a hydrauiic pump with veriahie pressure frem iZi up to 186 hars ten be used *Fer the drive, which in turn for exentpie can he driven vvith e conthustion engine or en eiectricai oient.
Preterehiy, the device 2 further cornnrises e hese 33 'for water V erranged eheut the drive rnerriher 36 with »which huse 38 water V sen be cenveyerzi te the cieaning head ii for ceeiing ofthe same citering operation and to decrease the triction forces between the cieaning head 4 and the inner weii 1G 15 2G 25 3G 3 oi the pioe 1 during operation hy that a iuhritating iiirn of vrater i! positions itseit hett-trean the resiiient body 5 and the inner waii 3 ei the nine l. ii the drive rnemher 36 hes a diameter ei egt 12 mrn, the surrounding hose rnay eg. have a diameter ot 20 nirn. ihfater V can ootionaiiy he used aiso to drive the rotation oi the cieaning head li, eg. hy iastening a turhirie device on the drive mernher 36 which is then driven hy water V trorn the hose 38 (not shown).
The rigid setting devices rnay eg, he cirtter teeth rrrade ot Corornant i” or he devices having a hard core of eg. titaniurn with a tough sieeve arranged around the hard core.
The cieziriing head 4 further oreterahiy cornorises a testening device 4G to which the drive rnerritser Sá is arranged to he connected during operation ot the device. The tastening detfice 4G rnay oreierahiy rzornorise a forward washer 42 and a rear washer 44 that are arranged to ine connected hy a threaded rod 45 is to he arranged in a narrosirer part 43 oi a through hoie 5G in the resiiient hodif 6, tvhere the washers 42, 44 have outer diameters iarger than the inner diameter ot' said narrower hart 48 oi said through hoie šü, and where the rear tßrasher is to he arranged in a Widar han: 52 of said through hoie St) having an inner diameter extteeding the outer diameter oi the rear »trashar 44, preferahiy hy that the rear ttfasher 44 oornorises inner tiireads corresoonding to and arranged to he engaging outer threads on the threaded rod äi? when the iastening device di) is in the assernhieti state as shown in the figure, and where a not er a rniiiing body 54 cornnrising an inner titread is arranged to he tiireaded on the threaded rod 45 in a sinwiiar vray in said assernhied state. in order to prevent rotation of the svashers 42, 44, they preferahiy cornprise respective nrotruding pins 56, 58 that are arranged to he pressad into the resiiient body ES in said assernhied state, thus iociting the weshers 42, 44 in piece, The drive niernher 36 may in turn cornorise an inner thread at the end which in a sirniiar way engages outar threads on the threaded rod 45 in said assernhied state. in order to prevent reiatitfe rotation between the threaded rod 46 and the drive rnernher 36 in said assernhied state, a sieeve 5% may he fixed, eg. weided, to the rear washer 44, which sieeve 5G has an outer' diameter somewhat srnaiier than the inner diameter of the wider part 52 oi the through hoie 5G thus being ahie to fit therein, the sieeve 6G aiso heing ahie to receive the end ot the drive rriernher 36 hy that the sieeve di) has an inner diameter iarger than the outer diameter' of the drive rnernher 36, and where iociring nternhers 62, 64 such as screws are arranged to pass tiirough threaded hoies in the sieeve St) and into the drive rneniher 36 in said assernhied state to prevent reiative rotation therehetween.
Figure 2 shovvs srzherriaticaiiy a front view' of a device 2 for cieaning of nioes according to figure 1, showing the front end 8 of the resiiient body iš, where the mhitioie rigid ctitting devices 1G, 12, 14, 16 1G 15 ß preterahšy arranged seršaiiy fattning greups 1G, 12; 14, 16; 2G, 22; 24, 2% arrahged at an angie separated írem the radiai directicah r e? the cíeahíng head 4 can be seen.
The emhatiíment Shawn in figures 1 anti 2 :en be deveißped årets: a nuntëtxer m* ather embetšimenïs cemprisíhg only same of the preferred features Shawn in figure lt Eg., ät is pessihåe te emit the rígid setting devices frem the rearwartš íacihg end 8 ef the resiiient body 6 fet an entbedirneht et the cieaning head 4 which is intended tt: cåean a pipe 1 hy artig: ïeeciâng the eieaning heart få än the ferwarei cieahšng direction F 'šrem the päpe orifâce inte the pipa 3. te he cieaned thus gršnáing up any materiaå åh the pipe 1 inte íâne partícšes using the rígša* cuttšng devices 1G, 12, 14, 16 that are arrangeti to pratrude frem the taperec? ferwarai facing end 8 a? the resäiient bedy 6 »when at the same time using eg. pressurited teater te fšush eut the íâne partâcies in the reverse cåírectäast R threugh said eriííce of the taipe J.. in the figure is ändicated the dírectštan of rotatiøn u: far the Cleaning head få. är: the šâgure is assumed that the dšrectâen of rotation is to the right seen in the dšrectâen e? the äongëtudšstaš axis X eítne cieaftihg head ti, hut the directšen of :station can as mentiehecš abcave aist: be to the Eett än ufhäch case the pesitäoning m* the rägid cuttêng devicee íü, 3.2, 14, 15 is adapted eorrespefstišftg te this.
Claims (15)
1. Anordning for renewing av ror (1) med ett vasentligen cirkuldrt tvdrsnitt, varvid anordningen (2) innefattar ett rengoringshuvud (4), ddr rengoringshuvudet (4) under rotation av detsamma lcring dess langdaxel (X) är anordnat att matas inuti roret (1) atminstone i en framatgaende rengoringsriktning (F) parallell med rorets (1) ldngdriktning (L) och med rengoringshuvudets (4) langdaxel (X) vasentligen inriktad parallellt och koncentriskt med rorets (1) mittaxel (C), kanneteckna av att rengoringshuvudet (4) innefattar en elastisk kropp (6) med en avsmalnande, framatriktad ande (8), och att rengoringshuvudet (4) dessutom innefattar ett flertal styva skdranordningar (10, 12, 14, 16) vilka är anordnade att skjuta ut fran den avsmalnande, framatriktad anden (8) av den elastiska kroppen (6).
2. Anordning for renewing av ror (1) enligt hay 1, kannetecknad av att rengoringshuvudet (4) under rotation av detsamma kring dess langdaxel (X) är anordnat att matas i en motsatt rengoringsriktning (R) parallell med rorets (1) langdriktning (L) och med rengoringshuvudets (4) langdaxel (X) vasentligen inriktad parallellt och koncentriskt med rorets (1) mittaxel (C), dar den elastiska kroppen (6) dessutom innefattar en avsmalnande, bakatriktad ande (18), varvid rengoringshuvudet (4) dessutom innefattar ett flertal styva skaranordningar (20, 22, 24, 26) vilka är anordnade att skjuta ut fran den avsmalnande, bakatriktade anden (18) av den elastiska kroppen (6).
3. Anordning for rengoring av rot- (1) enligt krav 1 eller 2, kannetecknad av att rengoringshuvudet (4) dessutom innefattar ett flertal styva skaranordningar (28, 30, 32, 34) anordnade att skjuta ut fran den elastiska lcroppens (6) yta i en radiell riktning (r).
4. Anordning for rengoring av ror (1) enligt krav 2, kannetecknad av att de flera styva skaranordningarna (10, 12, 14, 16; 20, 22, 24, 26) vid de respektive andarna (8, 18) av den elastiska kroppen (6) är anordnade seriellt bildande grupper (10, 12; 14, 16; 20, 22; 24, 26) anordnade i en vinkel skild fran rengoringshuvudets (4) radiella riktning (r).
5. Anordning fiir rengoring av rot' (1) enligt krav 2, kannetecknad av att de respektive avsmalnande andarna (8, 18) är formade sdsom stympade koner. 2
6. Anordning for rengoring av ror (1) enligt nagot av de foregaende haven, kannetecknad av att anordningen (2) innefattar en drivanordning (36) medelst vilken rengoringshuvudet (4) är anordnat att vara i stand att matas atminstone framat inuti roret (1) i en framatgaende rengoringsriktning (F) och medelst vilken rengoringshuvudet (4) är anordnat att vara i stand att rotera kring sin langdaxel (X), och att drivanordningen (36) dessutom är anordnad att ta upp tryckhaft i sin axiella riktning (A) utmed rorets (1) langdriktning (L), varmed en matningskraft (Fm) kan anbringas pa rengoringshuvudet (4) i rorets (1) langdriktning (L). 10
7. Anordning for rengoring av ror (1) enligt krav 6, kannetecknad av att drivanordningen (36) är en vajer eller sang.
8. Anordning for renewing av ror (1) enligt krav 6 eller 7, kannetecknad av att drivanordningen (36) drivs i sin tur hydrauliskt.
9. Anordning for rengoring av rot- (1) enligt nagot av haven 6-8, kannetecknad av att anordningen (2) innefattar en slang (38) for vatten (V) anordnad kring drivanordningen (36), medelst vilken slang (38) vatten (V) kan transporteras till rengoringshuvudet (4) for att kyla detsamma under drift och att minska friktionskrafter mellan rengoringshuvudet (4) och den inre vaggen (3) hos rewet (1) under drift.
10. Anordning for rengoring av rot- (1) enligt nagot av de foregaende haven, kannetecknad av att rengoringshuvudet (4) dessutom innefattar en fastsattningsanordning (40) till vilken drivanordningen (36) är ansluten under drift av anordningen, varvid fastsattningsanordningen (40) innefattar en framre bricka (42) och en bakre bricka (44), vilka är anordnade att anslutas medelst en gangad stang (46) anordnad i en smal del (48) av ett genomeende hal (50) i den elastiska kroppen (6), dar brickoma (42, 44) har yttre diametrar storre an den inre diametem hos namnda smala del (48) av namnda genomgaende hal (50), och dar den babe brickan skall anordnas i en vidare del (52) av namnda genomgaende hal (50) med en innerdiameter stOrre an ytterdiametern hos den babe brickan (44).
11. Anordning for rengOring av rot- (1) enligt krav 10, kannetecknad av att den babe brickan (44) innefattar invandiga &Igor overensstammande med och i ingrepp med utvandiga &Igor pa den gangade stangen (46), nar fastsattningsanordningen (40) är 3
12.
13.
14.
15. i det hopsatta tillstandet, och dar en mutter eller en gangforsedd kropp (54) innefattande en invandig ganga är anordnad att gangas pa den gangade stangen (46) pa ett liknande sat i ndmnda hopsatta tillstand. Anordning for rengoring av rot- (1) enligt krav 10 eller 11, kannetecknad av att brickorna (42, 44) innefattar respektive utskjutande stift (56, 58) vilka är anordnade att pressas in i den elastiska kroppen (6) i namnda hopsatta tillstand. Anordning for rengoring av rot. (1) enligt nagot av haven till 12, kannetecknad av att drivanordningen (36) innefattar en invandig ganga vid den ande som är i ingrepp med utvandiga gangor pa den gangade stangen (46) i namnda hopsatta tillstand. Anordning for rengoring av ror (1) enligt nagot av haven 10 till 12, kannetecknad av att en hylsa (60) är fast vid den bakre brickan (44), vilken hylsa (60) har en yttre diameter som är nagot mindre an den inre diametem hos den vidare delen (52) av det genomgaende halet (50) och en inre diameter som är storre an den yttre diametem hos drivanordningen (36) och att lasorganen (62, 64) är anordnade att passera genom gangade hal i hylsan (50) och in i drivanordningen (36) i namnda hopsatta tillstand. Anordning for rengoring av ror (1) enligt nagot av haven 3 till 14, kannetecknad av att de respektive styva skaranordningarna (10, 12, 14, 16, 20, 22, 24, 26, 28, 30, 32, 34) innefattar en inre hard karna och en yttra seg yta. (>0 $ , \ N Li A ‘.; 4), ".4.4 N 7=r-
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1451260A SE538174C2 (sv) | 2014-10-22 | 2014-10-22 | Device for cleaning inside of pipes |
| EP15189180.1A EP3012036A3 (en) | 2014-10-22 | 2015-10-09 | Device for cleaning of pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1451260A SE538174C2 (sv) | 2014-10-22 | 2014-10-22 | Device for cleaning inside of pipes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE1451260A1 true SE1451260A1 (sv) | 2016-03-29 |
| SE538174C2 SE538174C2 (sv) | 2016-03-29 |
Family
ID=54292694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1451260A SE538174C2 (sv) | 2014-10-22 | 2014-10-22 | Device for cleaning inside of pipes |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP3012036A3 (sv) |
| SE (1) | SE538174C2 (sv) |
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| CN107859873A (zh) * | 2017-10-27 | 2018-03-30 | 北京三聚绿能科技有限公司 | 一种生物质气输送系统 |
| CN108212960A (zh) * | 2018-02-05 | 2018-06-29 | 苏州思上环保科技有限公司 | 一种污水管道清污机构 |
| CN109681149A (zh) * | 2018-11-20 | 2019-04-26 | 中南大学 | 一种便捷式深孔管壁清洗及沉碴清除装置 |
| CN114832225B (zh) * | 2022-05-26 | 2024-02-09 | 中国人民解放军联勤保障部队第九八八医院 | 一种泌尿外科护理用术后上药装置 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB842332A (en) | 1957-03-26 | 1960-07-27 | James Victor Ronaldson | Tools for the abrasive treatment of the interior of hollow bodies |
| US3087181A (en) * | 1961-11-15 | 1963-04-30 | Jane Wallen | Sewer cleaning apparatus |
| US5113544A (en) * | 1990-02-08 | 1992-05-19 | Webb Brian C | Pipeline pig |
| JPH0639358A (ja) * | 1992-04-17 | 1994-02-15 | Masuda Denki Kk | 管径応動作業装置 |
| US6490748B1 (en) * | 2000-06-12 | 2002-12-10 | Kemtech International Pty, Ltd. | Flexible drill rod |
-
2014
- 2014-10-22 SE SE1451260A patent/SE538174C2/sv not_active IP Right Cessation
-
2015
- 2015-10-09 EP EP15189180.1A patent/EP3012036A3/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP3012036A2 (en) | 2016-04-27 |
| EP3012036A3 (en) | 2016-08-17 |
| SE538174C2 (sv) | 2016-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |