WO2010080743A1 - Pipe grip ring - Google Patents

Pipe grip ring Download PDF

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Publication number
WO2010080743A1
WO2010080743A1 PCT/US2010/020069 US2010020069W WO2010080743A1 WO 2010080743 A1 WO2010080743 A1 WO 2010080743A1 US 2010020069 W US2010020069 W US 2010020069W WO 2010080743 A1 WO2010080743 A1 WO 2010080743A1
Authority
WO
WIPO (PCT)
Prior art keywords
grip
pipe
teeth
ring
small
Prior art date
Application number
PCT/US2010/020069
Other languages
French (fr)
Inventor
Eliezer Krausz
Avi Chiproot
Original Assignee
Krausz Industries Development Ltd.
Klein, David
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Krausz Industries Development Ltd., Klein, David filed Critical Krausz Industries Development Ltd.
Priority to CA2749029A priority Critical patent/CA2749029C/en
Priority to JP2011545389A priority patent/JP5594849B2/en
Priority to CN2010800044334A priority patent/CN102272506A/en
Priority to EP10705677.2A priority patent/EP2382414B1/en
Publication of WO2010080743A1 publication Critical patent/WO2010080743A1/en
Priority to IL214188A priority patent/IL214188A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/061—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends a pressure ring being arranged between the clamping ring and the threaded member or the connecting member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • F16L21/06—Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe-ends
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/08—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe
    • F16L19/083—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts with metal rings which bite into the wall of the pipe the longitudinal cross-section of the ring not being modified during clamping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0927—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector the wedge element being axially displaceable for releasing the coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
    • F16L37/0925—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector with rings which bite into the wall of the pipe

Definitions

  • J(KJOS] ⁇ similar disadvantage is, presens in the cwupling dhcl ⁇ sed by Kalsechos ct aJ, io US Pattml EK). is provided by cfessts pressed into the pip ⁇ g.. which i* ,-t complex and costly smi ⁇ uiv.
  • KKJOl ⁇ j is ⁇ um el ai, pt ⁇ pose a high g ⁇ p t:oup!in » in US l*i_u;M Appljcauon No.
  • Jf(X ) O L 21 is is ;t fun her object of the present tnvenU ⁇ n to provide a pipe fining, particularly a pipe coi ⁇ iusg Mv.h ⁇ a improved pull-out resistance, unhmig a plurality of the grip elomrais des-mbed in tho prcst'tit
  • HSU presti ⁇ t invention achieves the above ⁇ bjeots by providing ft grip elemt-m comprising a wedge- like ssructurt* a m$K&l piaw. ihe exposed outer surface jhavof being pr ⁇ vkW witli an array of and UHUH gripping icctlx said krge sixlis pn>JLX ⁇ sig ffi ⁇ it she surface of s ⁇ i ⁇ ⁇ K' ⁇ ) plate fi ⁇ ihec ihan said small tecih.
  • TTC J. 1 is u jx's&pective view of ⁇ ]:nvfenvd emhifdiitient of the pip eletntm s ⁇ 'ii fm uttdemeath, according ro ihe invention;
  • U25j 1*10- 2 is a pc ⁇ tXXtK 1 C wcw Ql lhf satuc crnhoclimeni ⁇ crn fsin ss t*t>ovc:
  • top oisk-r su ⁇ fatt' 2(> is a s ⁇ te ⁇ pktc which is tmes ⁇ rat to all four wails.
  • j 0003 1 j ' ⁇ hc grip Mlcmc ⁇ i 10 is provided with an array uf large 22 attd small 24 gripping fec ⁇ h. Tin ; sharp uf all u'eih 22, 24 ( " ace the higher ! 4 s»f the Iw s end walls.
  • wish UK large KVtb 22 projective fiv>m she s ⁇ daee of ⁇ ,he (op outer surface ' 20 tisrthci ihan tiv the smalt itv A ' 24.,
  • the grip ri ⁇ g 26 seen in F ⁇ G. 3 will Ix 1 isise ⁇ ed over the pipe 32 afier sliis piptj is iixs ⁇ iyd i ⁇ k> vtperlure 38, An dastomer sasJfc «l 44 is also s-lkt ovei 1 the pipe 32,
  • the corneal mil housing 36 h then isghtejied oti JO a liu-eacfcti hollow compoftt'sst 46 wbav it cna b ⁇ seuitted by a lock nut 4»S.
  • r nnsid ⁇ .tr ⁇ l as Httiiiiftg its scupe, as thOii* skillod in the ait will ivadilv he awisiv s.hat addiri ⁇ iml iu ⁇ l n iotli f ⁇ L- ⁇ itions of site im-e ⁇ iion can: tx 1 ( ⁇ ri ⁇ iuiaied wiilniut depatting froia Lhe metmmg ⁇ l ' the [oM ⁇ wing clai ⁇ is.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Cosmetics (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Joints With Pressure Members (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Medicinal Preparation (AREA)

Abstract

A grip element (10) including a pipe-gripping wedge- like structure supporting a plate, an exposed outer surface (20) of the plate being provided with an array of large (22) and small (24) gripping teeth, the large teeth (22) projecting from the outer surface (20) of the plate further than the small teeth (24).

Description

PiFE GRIP RING
FIELD OF iNVENTiOM
10001 1 TIx? present invention relases u.» a grippcr elemeru particularly useful IVsr pipe Use filings, MyTC partkuiarJy, the tmesSion pumdus a grip demcssf which cass be used m pipe Ii SK' fillings artd coτiψiύigs, for griping plasl.k' i>r metal pipes, ^B- ;my uf.htT material .
BACKGROUND OF THE INV ENTION
I Qf $02] Wliile- in the past all piping was sαcuk of metal, usually itieuti, today plaMic piping is in widespread uie and has been fsnisd suilitblft for many ftppJiciuiήEiϋ, PJasi.ii; pipϋs iixe vvitk'ly used for The pmfecTion oi" eteαric cables, sewage, draissage aad, where The pipe cϋatiteTer is small for waser uitties
Figure imgf000002_0001
condiUnus Ux'i'C is little or no xnlctnal pri-'ϋiiR1, aad in
Figure imgf000002_0002
mA cxposeti u> solar Ktdhaϋon., 'ilk' present inventitm teiales fjajiituhulv Iu iπterusediate size piping, lypically the 30 to 2t.K3 mm range. Many prior an desigrss ;ue suitable i'Vu1 piρe.s ursdcr about 5π mm, while Iht over 200 fimge is. served weSJ by band clamps. ''I he present ήtvenuuπ refers to a g ripper ϊoot where the sfl!5ie clamp can be isselulty applied to fittings earning metal OF plastic pipes.
[L'003] Λ.s .far as the pit'.sctil j«vcaikm ss concent if. ■ should be noted thai not oni>: stxs ineutls hsrctcf than pktsϋcs, bin also rnctals have a Yoxsng's Mcidtslus about H) ssπses hiahcr ώsji plasties.. Thiss if ;s pointed tool is pressed onto the omsJite of a plastic; pipe the tisot will
Figure imgf000002_0003
^realer depiw.- than if die same tijol arui Jwrce was apphotl ι« a
Figure imgf000002_0004
pijx: having the satBc ϋitαensiwts. Vhua a priυr anS ps|x* c«>«p!tng fof csatϊspie Hitt table inr n 31' stect pipe wi ll bp latisiiHahk* lVsr a .V" pip-c tsf the .satϊitϊ wall thickness when mads of a pJasfk1.
1000-1] 7"hese
Figure imgf000002_0005
^uch as rtituvπal feeding as past of is EuanuiacUiπϋg pmciϊvs. TSiy grip unit h u^i-fu^ fnr fading ihwt isKikrrial to a press wS»ch
Figure imgf000002_0007
nielal ailiclos and js.i os.h(.'5k
Figure imgf000002_0006
.tin- inaiϊ.ui;κiumij> ankles made hxrni ϊn&ieήiϊh other thasi snetals. iOOiϊri ] 'Hit." Is lowing, brief rervsew v.f ΠXCTΪI; US puteirch
Figure imgf000003_0001
sui sssvsssϊifiEtt uf lhc sfak* of (he ars.
K)ϋO6]
Figure imgf000003_0002
ng a sπernhcM whirls h asialfy α -πspsessiblt; 50 SRMSI xut axial tWcc separahm' 0κ' pφtss. Due io <s complex oufer iibape two di fferent degrees of compression are available, in hitler so handle both plaijϊic and sk-ϋl pifϊfs. HOVTCVCS tht.TL? is ÷κ>n:^ (kmbt Evgarditig svifittitsn uf sUtfi pipes .as the retainer member does iios penetrate ϊhϋ t^ser skin of she pipe.
[{.0)71 IX'Morc ti ill. claim in LlS Patent &o. 6, H.i6.02y thai their de-sign of pipe coupliβg has iiϊSjjrovL'd |Mj.ll-ι>iJt ivjiistaiiϋt" Snr plasi:ϊc asni Ww steel pip:s. 'OK Iwk ring usod I'CL.JU.EΓC.S sϋverai
Figure imgf000003_0003
slots IVtr slϊdeably snpporung sndividiϋd snipper segrueRts, which am t lahsscd to t'ffe.ci Ά pCfirtt'Mifig rest failing srip against she pijx: ersd. Λ*> said sripricr tn;jk.!.-s line contact with a steel pipe very high pressure would be requited to penetrate the pipe surface.
J(KJOS] Λ similar disadvantage is, presens in the cwupling dhclαsed by Kalsechos ct aJ, io US Pattml EK).
Figure imgf000003_0004
is provided by cfessts pressed into the pip ήαg.. which i* ,-t complex and costly smiαuiv.
KX)Oy I The i.o:iΩp3e:s. pij.« o.suplisig disclosed by KksbJasoR, Jr. in MS Paten? 00.6,565, 123 features the wdl-k«ow<i asiitl-ϊiKJverncRt tvmical Uκ:k. VK design inclacks a bok having an jsxis nmgemiaS u> the pijxw lxbt.r)|; Jk1Id m the coupiinκ inu'tπted to liftύt lilt' t'orctϊ applied by the clamp col tar. The tn>1( thus svqtrires adjαstiTscnS wNcπ se? io a hard materia! while a St)Ii material is being gripped and also when s,eϊ t»> a snft πiatesial p!{xi white a hard material is he* tig gripjied.
Figure imgf000003_0005
ihc feκ»lt wilj be w.-τtiiigly asJjustetl
KKJOlϋj isαum el ai, ptυpose a high gπp t:oup!in» in US l*i_u;M Appljcauon No.
20(12/010 i OSO. 'Iliis design requires ϋuchinina and oae of the pipϊ ends, wttieh is irnpracticai in she field and even in the faeiΛϊ'y is diffic
Figure imgf000003_0006
ult long pipes.
OBJECTS OF THE INVENTION fOOOl ! ] In view of ihh si;Uf *tf UJ*.1 fttt it is, tiitw I SIK* ϋ!r tlκ* ϋhjtxis of ϊhe pwseπt invention u> obviate the disatlvania^es of prior an gripping device* ΛHU tϋ provide a de\ ice vvhit'h is stiilubSe for gripping both iiKΛai atκl JIJKSΪ.ES.1 itcrns. Jf(X)O L 21 is is ;t fun her object of the present tnvenUϋn to provide a pipe fining, particularly a pipe coiφiusg Mv.h\a improved pull-out resistance, unhmig a plurality of the grip elomrais des-mbed in tho prcst'tit
Figure imgf000004_0001
|000I 3j Y«t a farther ϋhjtxt is to pmviijc a pipe coupling which h suitahif withom aUjusf tnectb for b<*ih meiaf ans.L ply.sUc piping.
SUMMAIRY OF THE INVENTION
|Q00 l.4j "HSU prestiΩt invention achieves the above ύbjeots by providing ft grip elemt-m comprising a wedge- like ssructurt*
Figure imgf000004_0002
a m$K&l piaw. ihe exposed outer surface jhavof being prøvkW witli an array of
Figure imgf000004_0003
and UHUH gripping icctlx said krge sixlis pn>JLXϋsig ffiϋit she surface of sάiύ ΏK'\Λ) plate fiϋihec ihan said small tecih.
Jj(X)OlS] in a preferred esiibo^smesit of #ιe ptvsεfif invearioo there is pixivkk'd a yπp ring for a pipe, said grip dag comprising an outer ring retainisg several spaceO-apatt grip elenicnis disϊrjhuied arowjid the bine? circumfeivnco of said grip ring, the teeth of said grip element
Figure imgf000004_0004
.and ihc wa3I oT uiusl £>tip riaif lies m a conical plane. fOOUI 6j In it niosl pretetTCd embodiment of r.he present iiiventjon ?.hea> is provided pipe fitiing comprising an riuter body, a gπp nag as described irs the previous paragraph and damping means ass».«:iataJ witb said υuter body for pressing said grip nog against the surface of a metal or pksSϊe pt|x;,
|r.HXH 7l IΆ anorhtr prof erred esnbodimcm of the present Jnvtntioa there Is provided a pipe illts ttg being a pj{« coupltug provided with two axially spaced-apajt ckmψ grip rings,
ItK)OUSj It will thus bo teaHaϋό" that the novel grip element of the present invention can he
Figure imgf000004_0005
plϋ^tic pipes withouϊ rcqairirφ Any adjusmieni. Hie array of larger iceϋi wi.tl pt'iKtok" ths ^aή\κ<: oJ a pkslic pi^ h.t a depih ^ufficsem h:s prevent a«u! withtlπiwai. Th? smaller itπd thus stnynger fcxUh wdi txjneh'atc the stsϊ1";ϊce nf a mefai pipe even if the larger teetSi collapse,
|0t")0 L 9 ) 1 :IΪ« grip ck'tnenl ts ntanufactured out of a mwlium-h&rdness sκ;ei alloy by se of ϊ.iϊie or more press tools,.
100020! The gnp demeas ss suitable for ys.<? in fursher appHc&tiortJi.
|0002 ϊ ] The grip riαg dsscrsbtxl caa bn osrtl in cι.aiibiπatj<aιi wiξli various pipe fii tings. KX)0~2j Tht' most important application of the grip ring as seen now h in a pipe cυαpϊiftg iitr isHemicdsaic pipe diameters, w!κ*re il is expected !:hsf Ihe pipes wi lt be stihjwl k> axial forces which may arise ift sendee- Such force* may originate from ύu'πstai vOiiii-.ici.ius). from bending of she pjpt: or from internal iiuid pressure.
100023] The invention will now be described further with τclt'a:πα÷ u> ΪIK* iccompaitymg drawiEigs. which repres-esst bv example pivfeπ-ed eitsbotUmeitfN υi' the inveπuon. SU'ucimti] details ate *htswn tstiiy
Figure imgf000005_0001
inv a fυtκtamcaιa! ϊsmlersutfsdsβϊ; fht-svof. The ctescrihett exaisples, logeshejr with ih« iisrawiisgs, will iκuke appatsnϊ Ui ifayse skilled in ihe an IKΆV ftϋihcr fi>stm ol' ihe t itvenlion may he teali/ed.
BRI£F DESCRIPTION OF THE DRAWINGS
[fX)U24] TTC J. 1 is u jx's&pective view of α ]:nvfenvd emhifdiitient of the pip eletntm sα'ii fm uttdemeath, according ro ihe invention;
HX)U25j 1*10- 2 is a pc ^tXXtK1C wcw Ql lhf satuc crnhoclimeni ^crn fsin ss t*t>ovc:
|t.)fj()26j WG, 3 i*, a pes'i-.jk'€tive view oJ' a erip nn^ taifyine nniliipk arϊp Ltk:me«iSi;
|tX *U27 | M G . 4 is an expUxk-d view of is. pipe fiS.U ϋg iπelsadina Ihe giip sing seen in iht' previous fsgure, ffX)02Sj and
(tX'029j FlG, S is a
Figure imgf000005_0002
view of a pipe coupling wherein one < >f the C1 KiC nun. has boi*n suoiiont'd i*i TCVCΪΪI one of the grip Eings
OETAiLEIJ OESCRIimOΛ1 OF PREFERRED EXEMPLARY EMBODIMENTS
(tX)03O3 Theiv is
Figure imgf000005_0003
nf sk*ei. Fϊ(i. I shows Til L! iEi.yrfos of she grip eksitefji when; sll walls 12, 14 16 18 o! ihe ekstfcfjf. ;iiv seen. f.n FfG. 2 the asi'ay of leeth of two ditlerem sisrø is ^eeit The asgied side walls 12, 16 coπvtut the cIciΩcfti Ui hno a w edge- like SΪ EISCIUIC. Hie exposed, top oisk-r suϊfatt' 2(> is a sϊteϊ pktc which is tmesξrat to all four wails. j 0003 1 j '\hc grip Mlcmc^i 10 is provided with an array uf large 22 attd small 24 gripping fecϊh. Tin; sharp
Figure imgf000006_0001
uf all u'eih 22, 24 ("ace the higher ! 4 s»f the Iw s end walls. wish UK: large KVtb 22 projective fiv>m she sυdaee of ι,he (op outer surface '20 tisrthci ihan tiv the smalt itv A '24.,
|'O0O32 j With reference to f.he rest of she figures, similar reference fiuαterals haw? bsx:π ti.scs.1 u> identify similar pails.
J00015J FH). 3 ?
Figure imgf000006_0002
a grip rm» 2-S, for use i n a pipe fitting tn be described with i'ef'€røsee to FlCj, 4, The ring 26 teiaiss* several ϋpace<.l-ar>an grip eletπeiiLS 28 kitsch are radially evCfsJy dislnbuled aroHssd ihe ciaujuifsrerice of the gπp dng. The gsip elements 2S are Kiemical (o the gnp elei.tie.ots K) described wilh reieεt;nce κ> FICJS. i and 2, except thai a iloos1 closure 30 is provided.
1000341 Λϊf ihe ϊccϊh 2.2. 24 of the grip ctcmesit face tsnvasϊH rowasids ϊhc ceϋtcr of the nng 26. The toothed s.urfaccs 2tJ together foπn an internal sotfacc wliieb is parallel to the pipe surface x2 and oS" a duuwclcr very slteblly larger iban t!κ' \iψc- diaπ»eK'f s,LTti to ϊTC'i. 4, Hie floor surfaces 3D of the grip ykments 2H in tonibisuάiort fon a a section of a slice s>f a cony cut parallel to she cnne hase.
IO0O35I One o.f the isdvamage.s of the Oo-i.sr ;>0 is thai rhe structure of ihe grip clcmenB
2;^ is stiv?sgtheπi.5);l then*hy. MnihefTtioa1 UK ftfκ>r 30 vvliich ss svihjeclyd Io a high ciitripfcssivc thfc& when in USΛ.1 is K1S tβr abk' Kt slide along the c^nivaf J'.-tce 52 seen in FICs 5 whes'f s§ is fouttd on tha insuk of the conical nui housing 36. CortscquerifJy less IOΓIJU^ is required lo tighieti the eons c« i aut housing 3ft. .
1000361 Tuniiag now n> FTG. 4
Figure imgf000006_0003
is *eea an exiornally sovweϋ pon.ii.m υf a f-ipc svtcntion rfovico 34 Ibτ ;s p
Figure imgf000006_0004
^fx* fuiirs^ sucti as ;s va lve, sap. p^pc filter, tlυki nseter wad the like. Λ caries] mil huusinf; ?,6 has a central itpentirt.' 3S slighilv {argcr ihω sht pipe 32 io be held Uwsviπ. VVstiicls slots 40 iαr tightening the tius htx^iαg 36 Lire pmvidetl on an outer surface 42. The grip riϋg 26 seen in FΪG. 3 will Ix1 isiseϋed over the pipe 32 afier sliis piptj is iixs^ϊiyd iκk> vtperlure 38, An dastomer sasJfc«l 44 is also s-lkt ovei1 the pipe 32, The corneal mil housing 36 h then isghtejied oti JO a liu-eacfcti hollow compoftt'sst 46 wbav it cna b^ seuitted by a lock nut 4»S.
H>Q03?S Λ,s iht CiHiical ittsi iHΛtsstϊg 36 i^ tighionctl Elic tilasbstnw g;iskci 44 is cumpivsst'il so sea? the s
Figure imgf000006_0005
p^W byhveeo the ihsvaϋed hi.)iK>w 46 aad the oonical nut hαusimg 3.h. As the. satriϋ- H me tba αxueat nut housing 3fS sppties ρa>-s,vuni to ihe grip ring 26 and causes the teeth 22, 24 u> peactruie t.ne oincr diafntier of the pipe 32, [0U0B8J Referrms a«w to Fi(I S> there is depSoied Ji pipy fit sing being a ptpe coupling
50 provided with i\\χι s>;i;i:Hy spseed-apa.it clanjp grip sings 26, υnty one of which in vssibk m UK:. fjgLirc.. Ilκ' cswψcHUMtis 26. 36, 3K. ffϋ. 42. 4ft and 4H aiv ϊhe same iis
Figure imgf000007_0001
sfcπ i« the previous Ogure.
[O0O39| "The scσps; of the ckficrifxrd invention i^ intendtx! to inckKte all emhtxiimenis coming within the meaning oϊ Use icllowisig cl;iiiτιs. The foftjgojπg exairsples iliusi rait; useful forms i.ή the ifivcnϋtttij but a a? tnti. to he <.rnnsidι.trøl as Httiiiiftg its scupe, as thOii* skillod in the ait will ivadilv he awisiv s.hat addiriήiml
Figure imgf000007_0002
iuκl n iotli fΪL-εitions of site im-eπiion can: tx1 (øriϊiuiaied wiilniut depatting froia Lhe metmmg αl' the [oMπwing claiϊis.

Claims

CLAIMS What is claimed is:
1. A grip element comprising: a pipe-gripping wedge-like structure supporting a plate, an exposed outer surface of said plate being provided with an array of large and small gripping teeth, said large teeth projecting from the outer surface of said plate further than said small teeth.
2. The grip element according to claim 1, wherein one of said large teeth projects from the outer surface more than all the other large teeth and one of said small teeth projects from the outer surface less than all the other small teeth.
3. A grip ring for a pipe, said grip ring comprising an outer ring retaining several spaced-apart grip elements as claimed in claim 1, distributed around the inner circumference of said grip ring, the teeth of said grip elements facing inwards towards the center of said ring, and wherein surfaces of said grip rings opposite said teeth lie in a conical plane.
4. A pipe fitting comprising an outer body, a grip ring as claimed in claim 3 and clamping means associated with said outer body for pressing said grip ring against the surface of a pipe.
5. A pipe filling as claimed in claim 5, said fitting being a pipe coupling provided with two axially spaced-apart clamp grip rings.
PCT/US2010/020069 2009-01-12 2010-01-05 Pipe grip ring WO2010080743A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA2749029A CA2749029C (en) 2009-01-12 2010-01-05 Pipe grip ring
JP2011545389A JP5594849B2 (en) 2009-01-12 2010-01-05 Pipe grip ring
CN2010800044334A CN102272506A (en) 2009-01-12 2010-01-05 Pipe grip ring
EP10705677.2A EP2382414B1 (en) 2009-01-12 2010-01-05 Pipe grip ring
IL214188A IL214188A (en) 2009-01-12 2011-07-19 Pipe grip ring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/352,174 2009-01-12
US12/352,174 US7837238B2 (en) 2009-01-12 2009-01-12 Pipe grip ring

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WO2010080743A1 true WO2010080743A1 (en) 2010-07-15

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Country Status (7)

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US (1) US7837238B2 (en)
EP (1) EP2382414B1 (en)
JP (1) JP5594849B2 (en)
CN (2) CN102272506A (en)
CA (1) CA2749029C (en)
IL (1) IL214188A (en)
WO (1) WO2010080743A1 (en)

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Also Published As

Publication number Publication date
JP5594849B2 (en) 2014-09-24
JP2012515304A (en) 2012-07-05
CA2749029C (en) 2017-07-18
US20100176588A1 (en) 2010-07-15
CN105423014A (en) 2016-03-23
EP2382414A1 (en) 2011-11-02
CA2749029A1 (en) 2010-07-15
IL214188A0 (en) 2011-08-31
CN102272506A (en) 2011-12-07
IL214188A (en) 2013-10-31
EP2382414B1 (en) 2015-11-11
US7837238B2 (en) 2010-11-23

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