Note: Descriptions are shown in the official language in which they were submitted.
0,1/l9~ 30 1`1~, 5g3 P0E~q
2~ 29
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Thia 1 nventlon r~lat~ to ~lectrlc c~bles o~ the
klnd havin~ on~3 or tnore than on~ ela~trlc cond~ct~r
comprlsln~ ~ plurality o~ wlre~l or oth~r rl~xi41e
elongate el~ment~ o:e metal or me~1 alloy ~tr~nded or
5 otherwi~e a~em~l~d to~eth~, the or ~Ch condllctor
~elng surrounded by ~t l~n~t o~ ~xt:rud~d l~yer o~
pla~lc~ m~te~i~l. For convenler~ca, All ~uch ~l~xib~o
element~ o~ m~tal or metal alloy her~ain~fter wlll be
include~ 1~ th~ ~nerl~: term "wi~8 " . T~ pl~tlcs
10 mat~3rlal of t}~e ~xtruded l~er lmrn~dl~t~ly Ad~cent the
oute~l~09t l~yer o~ s~lre~ he or ~ach condu~or
sub~tant~ally flll~ int~r~ic2~ b~tw~n th~ WirQ8 o~ th~
outermo~t l~yer o~ wir~s and 1~ u~u~lly, but no~
~IBC13E~3~ri:~y, s~am~ -~o~ductl~re l~e~elu0~ it ~ 9 tha nor~nal
15 practlce ~or th~ ~x~ru~ y~r o~ plA~Eltlc2 materl~l
~mnedlately ad~ ac:ent the conduc~or to co~tltu ~ a
conductor ~cr~nO
W~ th D. vie~ to subo~ lally rec~ucln~ ri~k o~
moi~tur~ p~ne~ration ~lorlg ~ nt~r~ce~ wl~hl~ a
~0 corlductor conal~ting o~ Q ~lur~ o~ wiro~ ~krando~ or
oth~wise a~embl~d tosetA~r, lt ~8 common practlce . or
~he l~ters~l~e~ wnolly bounfl~ by th~ wlrss o~ the
conduc~or t~ be ~stan~i~lly ~ille~ w~ a
. eml-conc~uctlv~ moi~tu~e~ m~ ompound throu~hou~c
~5 ub~antially tha wh4ie len~th o~ the co~duc~or.
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0.~/19/~ 30 NO. 593 P005
2~2~9
an ob~ Qct o~ tho pre~nt lnv~ntlon to
provlde an im~rov~d method o~ m~r~u~cturin9 a
sub~t~ntlally moi~turl3-lm~e~me~ multl-wire el~ctric
conduc~or by me~n~ o~ which ~ho ~onductor c~n be
5 marlu . ~ctured an~ ren~r~d ~ub3tantl~11Y
mol~ture-imp~rme~ble ln ~ 815~10 o~r~t~ OJl.
Accordlnç;~ to the lnv~is3n, t~e l~nProv~d~ m~th~d
comprl~ aU~ing a ~lexl~le ~310nç~atla Core o~ m~tal or
metal alloy to tr~vel eon~inuou~ly ln th~ dlr~ction o~
10 1t:8 len~th: applylng viscou~ o~ condu~tive
molstur~-lm}; ~rmeable compound to th~ advatlcln~ co~e to
form around th~ core ~ lon~itud~ n~lly and
clrcumferentially contlnuou~ c~ in~ o~ th~ compound o~ .
a predet~nin~d 8ub~tantiMlly unl~orm o~orall dlametsr ::
lS throu~hollt the length o~ the cor~3; and h011aally
applyi~l~ a ~lur~lity Or wir08 ~o th~ ~vancin~ co~ted
core to form a 1 yer of hqllcall~ ~x~ndin~ wlrq~s around
~he core, the radlal ~chlckne3s 2md overall ~ e~er o~
the coatlny of vlscou~ ~enll ~Qnductive
~0 molstur~-imp~rmeabl~ ~ompo~md h2~nsJ r~ard ~o th~
nu~T~er and cro~ ectlonel7 BX~L61 o~ the lnt~rstlc0~
bounded by the advancln~ cora ~n~ wi~o~ o~ lay~r
beln~ such ~hat ~ach o~ said lnte~lce~ is
ntially rilled wi~h vi~cou~ ~sani-con~uctlvQ
25 mo~ stu~e-imp~ ble com~ound~ throu~hout the l~n0~h o~
'c~e conducl:or.
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0~/i9~80 ' lii:30 NO. 593 P006
2~ 29
3.
Preferably, th~ coat~ o~ vi~cou~ ~emi-~onduct~ve
moi6ture-im~ermoa~le compound c)~ pr~d~ta~nllnad
~ub~tan~lally uni~orm ovor~ll di~ ormed around
kA~ adv~nclng core by c~u~n~ l~h~ core to tr~ve~l ~nto
5 ~hamber ~ tan'cial~Y ~ wl~ch vi~cou4
~eml-conductlve snol~tur0-lm~erm~ com~olm~ m~ln~alnad
at ~ ~ubs~antlally aon~tant F~ros~u~e ~nd tem~er~'cur~ ~nd
out o~ th~ cham~ through ~ ord~r to m~intai~
the viscou~ condu~tiYe 3nol~ure-lm;p~rm~
lO co~npound ln th2 ch~mber a ~ 0u~0t~ntl~l ly c~n~tarl~c
pre~sur~, the volum~ of th~ ch~ r i~ automatic~lly
$~r~dual~r r~duce~ a~ the quantl~y Or compoun~ in th~
~hamber :~a~ l~; when th~ volum~ o:e th~ ~hamber ha~ been
re~uc~d to ~ ~regetermlne~ valu~, vi~cow
15 ~emi-conduc~lve mol~tur~ lmperme~lo com~ound i~
automatic~lly irl~croduc~d lnto the ch~er and th~ volum0
o~ t~e ~ham~r i~ au~omatlcally ~ra~lu~lly lalcre~od o
accommodat~ ~h~ additlo~al compouxld; and. when the
~falue of th~ ~hamber h~ b~n lncre ~ed to ~
ao p~edet~ ned tr~lu~, in~odu~tlon n~ ~dCiltional ~om~ound
lnto ~che ~h~n~e!r ~s autom~tically ~to~ed and thl~
~ecIuerlce Or au~atl~ oPera~ion~ 1~ xepeated aa
r~qulred .
The ~:ha~tr whlch 1~ ta~t~ally rllled wi~h
25 viscous se!mi-coF~ductlv~ mol~cure-impe~m~bl~ ~om~ound
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~)1/1' 16:30 NO. 593 P007
2~
-
~nd who~ volumo 1~ autom~tica;lly ~r~uallY d~cr~a~-d or
~ncroa~d ~ requlrad pro~r~b.ly 1~ con~ltut~d by th~
bore o~ ~ cylind~r in whlch works a pneum~tlcally or
hydraulic~lly o~r~ed ~lstun, o~or tlon Or the ~ ton
5 beln~ controll~d by m~no whlch automatlc~llY ~n~e~ t~o
~?o~itlo~ ~ th~ ~$~ton wi~hln t;b~ c:ylin~er, a~d h~nc~
~utom~tic~ sanaes the volum~ o~ the cham~er, ~nfl
which also au~omatlcallY ~ctivat~ ~d d~ tiv2tes a
pum~ ~or intro~ucin~ vi~cou~ c~n~uc1:ive
10 w~t~r-lmp~rmeable ~om~ound in~o ~he chamber.
Th4 ~eml-cor~ductiv0 mol~u~a impe~m~abl~3 compou~d
periodically i~troduc~d ln~ ~h~ ch~mber 1B suxsplled~
rrom a ~ou~e at which 1- i~ mai~talne~ At a ~emp~ture
~u~ icient to ensure that the co~n~ound i~ o~ the desired
15 viac:osity~ The ~om~ourad withln ~he chaml~er ~chrough
wht~h ~he ~lexlble co~0 continuou~ly ~crav~
maintained at ~ bst~nti~lly ~on~t4nt ~em~ra'cur~
~u~ficient eo ~r~sur~ th~ he co~ou~ of th~ de81~d ~-
viscosity by mean6 o~ hea~ln~ m~n~ which i0 ~ c12t~d
~0 w~ th the chan~4er ~nd whl~h can bo ~ltomatlc~llY
con~roll~d ~o malntaln 'che ~ompound in th~ chan~ber at
th~ desir~d ~ t~ntl~llY ~on~ant tem~er~tur6~.
Th~ ~ie thrsuçrh whlch 'che ~dvanclng core em~r~
from ~he chamb~r ~r~r~bly i~ con~itutod by a c~rbid~
25 wirs drawln~ ~le.
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0~ 9 i~: 31 NO. 593 P00~3
~ re khe ~on~uctor 1~ r~nded cenductox
con~l~tln~ o~ seven wire~, th~ x.~bl~ cor~ w~ e
constitu~ad by a ~in~le wir~3 a:rouz~d ~rhlch th~ ~ix oth~r
wir~8 o~ ~he c~onduc~-or wlll ~e h~lla~lly ap~ d ~ r
S the longltudi~ally atl~ clrawn~larhntl~lly c~ntinuou~
coatln~ o~ vi~cou~ ~eml-condu~tl~0 mol~tllra-imF~erm~le
compound h~ b~on ~p~lied ~o th~ aingle wlre.
whRre~ the conduGtor i~ ~ ~t~ d condu ::tor
con~lstin~ af nlneteeII wlr~ o~ the ~r~t6~r~tic~
10 within and wholly ~c)unded by wlroa of th~ ~tranded
~ondu~o~ x~refar~blY 14 ol~eated ~ n Swo operatlon~
carried out ln tand~m, ln ~h~ t o~ whlch a strand~d
c:onductor o~ sev~n wi~e~ wlth th~ ln~er~ wl~hin ~he
conductor sub~t~n~i~lly ~illed With vl~cou~
5 seml ~onductl~e mol~tur4-im~ ompounCI i.5 ~ormed
a~ here~ fore descrlbed ~n~, in the ~cond o~ whlch,
the ~lexlbl~ ~ore wlll be co~stitu~d by tho ~tr~ds~
conductor o~ ~even wire~ arou~d wh~ch th~ twaLv~ oth~
wire~ o~ th~ conductor will b~ h~ ally ~p~lled aftor
20 the lorlgitudlnally ~nd ~ircum~0n~1~11y aontlnu~u~
coatlng o vl~ous seml-cond.uctiv~ moi~ture-lmpormeable
~omp~und ha~ b~e~ a~lie~ to th~ ~even-wl~ con~a~r.
Expr~s~ln~ th~ ~ra~r~od m~thod do~lb~d lh the
p~ec~dln~ ~ar~raPh i~ mor~ ~n~r~l ~orms, wher~ a
~5 ~tranded condu~tor cons~ Or ~ mul~i~lici~Y of wlres
1~ n lay~x~, ~h~ wlr~ o~ ~h~ ~n~xmost lay~r b~in~
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0~/19/g~ 16: 31 I~o. 593 P009
hellc~lly a~pll~3d a~ound o~ ~lns~l~ wi~e ~ tho wir~t~ o~
each 3uc~eedlno l~y~r baing h~llcellly ~plled ~round the
~rece~in~ layer, f llllnç~ o~ th~ lnt~r~ti~o5 withlr~ and
wholly bc)undl3d by wi~e~ o~ th~ ~rand~d conductor
5 pr~r bly 1~ ef ~ected lr~ 11 opera~io~s c~rrl~d out in
tan~lem,
The lnverl~i4n al~o lnclud~3~ ap~aratu~ ;eor uae ln :
tlle manufac~cure o~ a ~ tantl~lly moi~tu~e-lm~erme~le
multi-wir~ el~ctrlc condu ::tor ~ hor~lnb~ore
~0 d~cril;~ed.
The ln~en~lon ~urth~ clu~las a
mol~cu~e~ able mul~i-wi~ olactrl~ conduc~or
manufactu~ed b~ ~he lmproved me~'chod h~re~ fo~
deBCribed .
l~ inventlon i~ i~u~t~l9r lllustr~t~d ~y a
~le~riptlo~ by way of ~xun~le, o~ the pxe~3rred m~tho~
o~ m~nu~c~urin~ ~ subs~ tially moi~tur~-lmx~rm~
multl-wlr~ ctr~c co~ductor ~omprl81ns~ ~ ~ln51~0
c~3n~ral wlre ~n~ ~lx wtr~s hollc~lly a~?l?lie~ around th~
20 cantral wire wlth re~erænc~ to th~ accom~anyln~
dl~sJralJnmat1c ~r~wln~ which ~how~ A Islde v~w, p~rtl~r in
s~ction a;nd partly in ele~ratlon, o~ pre3~red a~ratu~
~or ~pplyinç~ ~ longitudlnallr ~n~ ~lrcum~ero~tially
continuou~ coatl~g o~ vls~ous ~?ml-~onduc!tlve
25 moi~tur~ imp~rmeable c:om~ound to ~h~ central wir~.
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01~19~ 16:31 NO. 593 P010
20~BX~9
R~errlng to th~ dr~win~, ~ho ~r~ r~d ~par~u~
~or applyin~ ~ lon~ltudln~lly ~nd clxcum~re~tl~lly
c~ntlnuou~ coatin~ o~ vl~cous ~ml-co~duc~lv~
mols~ure-impermeable compoun~ to th~ c~ntr~l wlx~ o~ ~h~
multl wlre conductor comprl~ cyllnd~r 1 havin~ a
~or~ which work~ ~ p~m~ ally ~p~r~t~d ~l~ton 3
h~vi~g ~n aBBOCla~Qd pn~umatlc compr~ion cyllnd~r 4,
The ~ore 2 ~ th~ cylln~er 1 c4~ti~ute~ ~ ch~mb~ to b~
fllled wlth vlscou~ a0ml-conductiv~ moi~ure-imp~rm~ab12
compound Which wlll be m~int~lnod ~t ~ con~t~nt prea~ur~
and ~emp~rature and throu~h which th~ c~ntr~l wir~ ~not
~hown) o~ the mul~i-wir~ conductor wlll b~ cau~d ~o
travel vla a~ lnlet 5 a~d ~n ou~t 6. A carbide wlro
dr~w1ns;J dia 7 1~ posed lmme~l~tely adi cent the
outlet 6. the ls~ternal ~l~m0tor o~ ~he dl~ beln~ BUCh
th~t the coatials~ o~ vl~cou~ condus:kiv~s
moi6~ure-im~ermeabl~ compo~nd on ~h~ c~nt~al wixe
eh argln~ ~ th~ ch~ 2 will b~ o~ ~h~ de~lred :
overall d~net~3r and h~nce ~dial th1ckne~.
Op~ration of tho ~l~to~ con~rollea by ~
sen~o~ 8 w~lch automa~lcally ~e~e~ ~h~ po~l~ion o~ the
pi~ton within the ~ylind~ 1, a~ hen~e ~tom~tlc~lly
~ens0~ th~ v~l~me o~ ~h~ ~h~mbo~ ~, and whlch
~utom~tlcally actlvat~ and d~-~çtiv~t~ a pwnP ~not
shown7 ~or lntrvducin~ throu~h An ~ 3t port ~ into the
chamber vl~ous ~emi-~ondu~tive w~t~r~ rme~
compou~d ~rom a source ~not ~ho~m3 a~ which lt 1
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01/19~ 31 r~o. 593 P011 20~ g
malntalr~d ~t ~ t~m~w~ture~ ~u;~tciant to ~nl3ure~ that
th~3 compound i8 O:~ the de~lred v~co~lty- Com~ound
withln t~e eh~ r 2 oan be contlnuou~l~r m~ln~in~d ~t
conH~ca~t ~em~er~ture ~uX~lcio~t to on~ure that lt 1~ of
S the de~i~e~ v18co~1~cy S~Y m~n~ o~ an ele~trlc h~at~r 10.
Exce~ viscou~ ~@ml-conductlve moi~tur~-:lm~ermeable
compound lowinlJ . rom t~ ~Ir~win~ di~ 7 ~an b~ co~l~cted
in a rQs~rvoir tnot ~hown) po~ltlon~d b~n~a~h th~ die,
where th~ exca~ com~o~nd can be pum~ed bae3c lnto the
10 sourc~ o~ com~ourld.
In u~e, th~ centr~l wirs o~ th~ multi-wire
conductor to be fo~ne~ 1~ c~U~e~ to tr~v~ the
dlrectlon of ~ta len~th throu~h ~he cham~er 2 vla the
inlet 5 ~nd outlet 6. th~ ch~ 3r belns~ d with
~S vi~ou~ semi-corlductive mol~turs~ 3rmaa~ ompound 80
that, on emer~ln~ f r~m tha drawlnSJ diQ 7, the wlre h2~ a
longltudin~ and circum:Eor~n~lally co~t:l nuou~ coatln~
o~ t~se compou~d o~ a ~rqde~ermir~ nlYorm osr~rall
dlame~er, an~ hen~e radial 'chic~ , throu~hou~ ~he
20 len~th o~ ~he wire. A~ th~ quantity of compound 1~ the
chamJ~er 2 ~alls ehe xSl~ton 3 coD,~c~nuou~lY worklnçr in the~
cyllnder 1 automatlcallY ~r~Clua~ ly roduco~ th~ volum~ of
the cham~r ~o that ths ~ ur~ o~ th~ V~ OUB
seml-con~uctiv~ moi~tur~-lmpe~ om~pound i~ th~
25 chamber i~ maintalnod conlatan ~ Wh~n th~ ~olume o~ th~
chamber 2 has b~3n red~lc~d ~o a pr~d0~rmln~sd valu~, th~a :
po6ition o~ ~he pl~o~ 3 lo ~ d by tho 8~3n80r 8 whi~h
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01/19/9~1' 16: 31 NO. 593 P012
%9
9.
automatic~lly ~c~iv~te~ ~ ~Ump 'co lnk~oduci~s ViElCOUJ
~eml-con~uc~lve mol~ture-imp~rm~ om~ound vla the
inl~t port 9 into the cham~r .~ ~rom th~ ~ourc6~ o~
com~ourld ~not ahowni. Wh~n t~3 volume o~ the chamb~r,
S whlch is now automatic~lly yr~ually incr~aain~ to
acconunod~t.e th~ addl.tlon~ 4m~0url~, h~ln bb~n lncroase~
to a pr~dat~rmin~d v~lua, th~ ~ltlon o~ ~ho ~l~ton 3
i~ ~ens~d by th~ ~an~or 8 Which ~utomatl~2lly
d~-activatq~ hC p~ o ~t~ lntro~luctiot~ o~ fu~ther
10 compound lnto the cham~er. Th~ ~e~U~nC:e o~ au'come~Slc
o~eration i~ r~3~aate~ a~ r~ u~ln~ m~nu~z~turl3 o~
the mul~l-wlre cs: n~ucto~ .
Down~3~ream Df ths dr~win~ 7, the centr~l wir~
wlth th~ coa~ln~J o~ ~om~pour~ e~oon ~aa~
15 standard w~ro ~r~ndin~ m~chln~3 whor~ ~ix wire8 ar~
helically ap~ d to th~ adv~ncil~g coa~od wlro ~o ~orm a
lay~r oi~ h~ ally ~x~sndirlg wl~ ou~CI th~ c~s~tr~l
wir~. The ~adi~l thlck~o~o ~d ov~r~ll diamet~r o~ h~
c:oa~ing o~ compound on th~ c~nt~l wlr~ h~vinQ :~sJ~rd t~
ao th~ numbQ~ and ~ro~s-a~ctlonal a2:eas o~ th~ in~r~tic~
bounde~ by th~ advancl~ xal wlr3 ~nd th~ ~lst wlre~
o~ the l~y~r ~ uch th~ oach o~ the~e interstic~
fiLlQd with vi~ou~ ~emi-co~uc~lvo moioture-lm~srm6-Ablo
compound throu~hout ~he l~n~h o~ th~ c~nduc~o~.
Th~ im~rov2~ m~thod o~ m~u~acturl~ a
~ubstantially m~is~u~ multl-wlre ~l~c~c~ic
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0~/19/9~3 i6: 31 NO. 593 P013
2(~t_~9
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conductor ha~ the lmportont ~vant~o tnat th~ c~ ductor
c~n be mAnufactur~d ln ~ ~lin~lo o~o~tl4n i~r~ ctlv~
o~ tha number o~ wlre~ o~ wh I ch ~h~ con~luctor i~ built
u~ he imz: rov~d appnr~tu~ ~ol^ Ua~ in the manui~ctu~e
5 of ~ su~s~antl~lly mo~4~ure~ bl~ mul~l-wl~0
~loct~ic conductor ha~ th~ importan~ advanta~7e th~t it
i~ aimple and lnexpenl31v~ Pnd can ~ r~a~ilY u4ed ln
tarldam wl~h a 8~ nd~Yd wire ~trat~dln~ m~chlne.
