Note: Descriptions are shown in the official language in which they were submitted.
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Tl7i~ ~e a divl~iorlal appllc~t~Qn ot Patent Applicatlen
SeriPl NunbeP 223~757 by 13illy Nilsun~ ~lled April 3~ 1975~ ea~itled~
tlVALVE~o
lhl~ inV~Q~iOn reP~s to a vslue inten~6d to be opera~iva
bot~esn a rir3t and ~ ~cond 9p~1ClE~ hor~y or~e o~' ~ld speces may b~
the Op81'1 sir~ and haa the ability to up~a in ~esyGnse to a prea3u~
~erenoe bst~a~n 813id epace~ n~d, ~s this 0nd~ ha~ a di~phr~lgm~ ~hloh in
th~ ~3orlRal 013~ing po~ition th~reo~ ie ao~hat 6WlliC~Il and do~n~ardly
eleping toward~ th~ oa~tr~ said diaphr~lg~ h~ing an ope~ g ~hlch i~
nor~elly k~pt olosed by a po~t~ or the lllte9 Jl ped aql la vatlve eteal~.
Wb~n a valve ot l;hi8 typlE1 i8 oonn~otad for ~x~ple ta a
tU~ oont~iQin9 ~ ~luid ~d th~ interior o~ tha tube de~ines o~e ot the
~pa~e~ ~ationsd iEI tha proa~ble an~ ths op~n 9il` ds~iRe3 th~ seo~rld
~pac~ the valve will ~OEII~ a sd~-s;:ls0:Lng C108U~E~ tor the ~uboO By : .
~nudly ~qu~szing ff~ ~ùbe~ the pr~ura require~ Por ope~ng tha
ualva ~ be g~n~r2ted u~d it is ~mdar~tood th~t ths3 oo~0~t ~1' th~ tubo : .
~11 thereby b~ d~schsrgad thr~ h tha v~ op~ning~ l~hon the
pre&8Uæe7 ex~æt~d upon t.ha ~lul~ c~nt~n~d la ttls ~ube i~ rsl~ d,
t~ disphr~gn ret~rF~ to th~ origin~ po~ltion ~beEsof by ~nG of
lt~ tl3xibllity and therellby~ th~ vflllv9 openlng 18 cle~ed. :-
In or~r to d~r~r~ the di~phr~ ro~ th~ abov0~entioned : .
orlgirl~ pooition in whlch th~ dl~phr~g~ ~ngle 018y be oell~d n~3~tlve
to ~ pls~r o~ ~lst poel~lon~, lt i~ neo~sary thl~ a rele~iv~l~ lar3æ ~::
toroa ~B ~ppll~d to the diaphr~ , Whon ~he d~phrag~ rs~l~h~ he pl~n~r
pooition (z~o 4agls) ~nd ~o~tinu0~ to~2~ pooi1;1v0 æagl~ ~nd th~
expoairl3 oS' the vd.v~l opening hso begun~ the cun~6nt o1' the tub~ h~s . ~ .
1~ high pr~ss8ure at th0 811U~ 8 th8 v~lve oponing i8 ~ Iry ~la~
A ~es~lt ther~r la th~t ~b~ dloch~r3~ ocours r~h~ like ~ 90
and th~ ~uec~esiv~ly lncre~aino v~lvo t3p81~ g ¢o~bîned with a so~ewh~t
reduced preeaure ns a 001182qUellOel h~r~y re3ult~ in ~ spu~t end
un~sntroll~d disch~rgs. Fbr this re~on, alves ol' th~ ~rore~arltioned
type h~s/s only found li~ited use. :
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Thus, the objoot o~ the inv0~ti~n is pri~rily to
ali~iaEItl3 th2su dra~backs 3n~ to prov~de a ~i~pl~ Qad ~'Plcl~n~ v~ a
that ~ay be utilizsd Por ~ n~b3r ot application~ st~cb ~a a sal~
closing clo~slre~ A ~afety vsl~ a cor~trol valv~ eto.
To acco~pli~h th~a~ and ~tho~ ob~ots~ th~ ventioFI has
the charact~ri~tics ~isdo~d in th~ 1~ollo~ing Gl~
In tb~ accoolpan~i~g drawin~s7 thr~e ex~plitrillg ~bodi~sts
o~ the inY~tia~l ar~ t~at~d.
Figur~ a 91!1i~iQI) through a ~r~l~ a~bo~ nt oP th~
~ nvsntlo~
figure 2 i~ a seotioE~ ~h~ou~h ~ oacond ~b~di~n4 and
Figur~ ~1 ia a a~c~lo~ tbPo~g~ ~ thlrd eebod~0Rt in the
~hap~ o~ ~ 8~1t`0t~ UI~lV
ll~o~rdlng ~ th~ lnv0~tio~ ~t~ps ~re l~ak~ to pr0v~Mt ;
oo~un~c~tian bat~a~ he t~o 8p&U:lEU3 b~t~0ea ~bloh tb~ v~lva 1~ ~ounted
tb~ po~tio~ h l;h~ diaphr~g~ i8 in tbo r~ p~ lon
thsreo~ ~n~ga~s ~ ) un~il th~ ~a ba~ been derl~oted to a
a~b~t~ntlally plzr~ar o~ndiltiD~ (ze~ ~ngla) ~bsn th~ v~lve op~
iR th~l ~bodi~t at~ figtlre 1~ gh18 io ~oocap1i~hed ~ .
by :~las~ o~ a part~ whil~ bodi~ accord~g to : :
Fig~e~ 2 snd 5~ ~his i~ ~oh1~e~ by ~sk1ng the ~lue po8~ IOVI!IblQ~
Ttlo valv~ Illua~r~t~d 1n Fi~ura 1 oo~pri~a~ a fir~ ~ber
h~Ylng 'cho g~n-r~l ra~0rence nu~lar~ nd a ao~ond IR0~b~3r with l;he :
gsn~r~ ra~rsnce r~ ora1 2" In 'cha ~bodl~nt aho~n~ w~er 1 oo~priaes
ann~lar pu~c~o~ 3 ~h~ch ha~ a p~ripb2rd out~rd1y dir001:0~ f1ang~, :
or be~d 4~ in the upper p~rt 'ch~root. Th~ ann~laP portion 3 oo~ usliosta~
~th ~ o~trol botts~ paPt 6~ pre1'`ar~bly by ~0~n~ o1? thr0~ rib~ or
~poko~ 5~ ~h0 rirst ~b0~ h~o ~ Dtflllll po~tion ino1~Jdlng ~n annu1a~
rlange 7 ~ l aa ~ po~3t 8 proJ~ctlng frow ~ald o~tltral botto~ p~rt
3~ ~nd tho po~ ultably ha~ ~ber 9 of redu¢~d di~Rstor.
5~il~1y, th~ s~cond ~bor 2 of' tho v~lv~ h~ ~n ~naul~
portion 10 prov1d~d ~lth an intsrn~l g;row0 11 into ~hich th~ out~rdly
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direoted tlsng~ part, or be~d 4~ of th~ ~in m~ber 1 may ~nRp. A
'6hln~ d disc~hap~d part 12~ actlrlg as a di~phr~ proJ00t
sald an~lular portion aad said ~iaphragm ~ont~nues in th~ ceF~ral
p~t~on th~re~t in~o 8 ~le~ve 137 the low~ porti~n oP ~hich being
subetantially cylindrio~l ~n~ 3~alingly ~urrDundiag the a~nul~r flang~
7 of m~aber 1- 7he slsav~ h~l8 an upp0r and wall 14 pro~id~d blith 4
di~ob~rg~ cp~n~ag 15 wbich~ as ~sy b~ ~ in Flgo 1; no~ally i~
kçpt c~ver~d by the erld portion 9 o~ the post.
Th~ t~ a~bers u~ the v~l~e ~oording to the e~bodi~ant
10 ~ho~n ~ay be 0~ o~ a ~Ed'c~b1~ thor~p1~o~io ~at~rial by an ln~etion
noulding prQo~ snd thu~ ~ay be ~abrioa~sd to a lo~ co31; at the 118111e
18 ths d~ai~d e1EI~ti~3ity eharaoteris~io3 are ~ohi~vsd. In a
~nner not disc10s~d~ ths va1ve is conn~ot~d t~ ~ tube 16" or tha 1ike.
Whea a p~s~ure is appli~d t~9 the oont~ o~ the t~Jbe~ ~aid
oonte~t will bo pr~ssed i~to tha ~p~Ge la through the opaning8 17 ~ .
bet~2an th~ spokas ~nd~ as ~ resu1t th~r~o~ tb0 c~nt~al portion o~
tha di~pb~g~ 12 ~ill b~ d1sp1ao~d in tha dir~otioa o~t~rdly ~rom
th~ tubs~ Upu~ thls d1sp1~oQE~isnt~ the ~ o op~ning w111 b~
succossiv~ posed bu~ pr~esuriz~ ODntsnt of the tube i~ by ~eans
20 of the oo-operstl~g ~l~age 7 ~d ~l~av~ 13 preve~t~d ~u~ r~Æ~blng the
ap~ws lg. ~o~e~er, wh~ tho lobl~r portion nP eleGve 13 paso~s th~ :
upper ~dg~ of th~ enn~r flange 7~ th~ p~s~l~rizo~ rlu~d 1~1 spaea 18
~ay t'lo~ lnto op~ce 19. H~ever~ ~h~n this ooc~r~ ope~ing 15
io totally oloar o~ th~ post 8 ~nd the ~scha~e o1' the ~luid
there~o~e oooura at a relakivelr loq~ ~p00d ~nd with a sub~turltl~lly
CoQ0~t op~ning ~ea~ Aa a r~ult th~3roo~ ven end corltroll~d
t1ow ot ~te~id th~owgh ~0 Yalve ~3pqlllit~9 15 t~kes p1oQe~ A~
tion~d~ a ~bstant1al1y si~ r efP~ot ~y b0 obt-1ns~ for
~x~np1e by th~ ~10sur~ shown in Figa 2~ hioh basioal1y hal~ th~ ~s~e
30 ~tr~cture a~ the e10~ur~ d~sor1bed above~ ~1th ~hs except~on~
01so10sed be10~. me p~rts cf the o10~wra bo~ng ~re or 1-8B
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i~entical with tbe corr~pondiag parts ot th~ closure shown in
~i9~ 1 ar0 thu8 not expla~rlad~, The clo~ure aoo~r~ing ta Fig. 2
thus lacks the an~ular ~l~ng~ 7 and the xib3 S~ ~r~ relatiudy thin
and ccn~equsntly ~ xibl~ in eontr~d~etlnction to th~ ribs nr spoka4
5 ln Fig. 1.
In thG Flo~asse~blsd ~d unt~nslonsd condition o~ th~ :
closL~re, th~ spokes ten~ to oco~py th~ positioa ~hows~ in dott~d lin~
lr~ Fig. 2 tllod lt ic ulldor~tood that, oDn~4u~ntly~ th~ spl~ko~ ar~ ;~
pr~t~n~ioned in the ~s~bl~d oo~ditian ot I;ha ~losl~o. SiQil~rly
to tba e~nbodi~enb in Fig. 1" 1;he diaphr~ pa~t 12 i9 p~ n~io~d
ill i1;8 ~o~nte~ condi~ o that it sag~ge~ ~hY pos~ B5, 9 by
ooPta1Q prsse~r~ in order ~o ~ns~rs a 91~CUX13 ~ 19 ~ctlon.
pr~t~n~ion of the diaphr~s~ part i8 ~uPficie~lt that th~3 ribs 5
~ill t~ke tho p~ioa ~ho~ Pwll lina ir~ Fig~ 2.
Wh~n the ccnt~n~ oP th~ ~ubs lo oxpQs~d to a pra3surs,
thu dl~phr~gla 12 ~ill b~ suco~sil/~ly flstt~n0d cut to~ard~ a pla~lar : -
pos~ti~n tro~ its origirl31 positlon bllth z s~g~tive a~gl0 Qnd ~11
thar~tt~ oooupy ~ pos~ti~s angl~. ~y th~ p~t~sionl~g o~
spok~o thay tend t~ oc~upy th~ po~itien iholon i~ dott~d lia~3e9 ~h:lch
~s~ ths~ th~y durlrJg tho Sirs~ of th~ mov~lat of ~h~ di~pbrag~
1'ollow tbe dl~phrag~ Thuo~ th~ post wil~ not leav~ i~s grip wlth
the openi~g 15 durlng thi- tir~t d~tor~tion ~f tbs diaphr~ 0
The pro-t0neioning and di~ensionln~ ~r~ h~r~by 80
a01~oted ~h~t th0 spokee 5t r~ach their ~nlo~d~ po~itiona~ ~hown
in d~ eo wbot~n~ially Illhon th0 dlaphr~go p~soee th~ z~Po
angl~ 1.H~ ~hsa th~ diaph~4g~ i8 ~ubot~n~i~lly rl~t. When p8U!li519
th1e anQle,~ th~ d0for~ation ot th0 di~phcag~ ooour~ at ~ rel~tiv~y
lo~ pressure ~d raoidly up to or~ up~u:~ly bant po~it;ion ~lth a
positivo angl0 ~r th~ di~phr~g~ u~d thi0 l~ads to a rapld expo3ure
o~' th~ Dpas~in~ 15. It ls o~vioue th~t by th~ w~e oP ~ d~vic~ na~
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de9crib0d~ it; i8 not pos~ibls t~ ~bta~n l~uoh ~ g~lltlo ~nd ~qual di~
cha~ge flow ~8 i~ ~de posslbl~ wi~h th~ 6~bodi~ent ~ccor~ing to flg~
1~ but experi~sRts have ~bo~n th~t tho i~provs~ent o~ th~ ~low
ch~racteristics co~par0d with known V~lVe8 ot this typ~ i8 consid~rable~
an~9 iQ ~o~t c~s~ lly s~lci~t~
A third possibility to realiz0 th~ ~b~oot o~ the iRVentiOn
~8 the val~ str w ~ according to Fi~. 3. I~ t~is 0~3e~ t~e valve i~
i~tendsd to oon~tlt~te a ~tety ~alvs and co~p~l~e~ ~our ~e~ber8
g~or~lly d~signatsd 1~ 2~ m 3~ ~d ln4~ pr~rably ~11 o~ ~h~
1~ b~lng ~ade ~ro~ a ~etsl.
The P~rst ~s~ber 101 ie a ~upport ~nd ha~ a ooa~0ctlo~ piec0
105~ pre~erably pro~ided ~ith threada os~ the like, pro,~set~ng ~om ;
a bt3tten~ 106 ar~ p~ rdly ~ireot~d f'l~nge port~n 11~7 tormils~ a~
outer r~ al~o proJ~ots thers1?ro~. Fl~gl3 portiws lE17 ha~ ~n 0xternal
~hrosdlng 10~ and th0 ~pp~r ~dge portlon lQ9 th0r~0P l8 obl~que. Th0
bo~m 106 i8 per~or~ed by ~ r o~ obllqae b~r~B ll~o Th~l eecend ~:
me~b~r 102 ceillpri8l33 Ul anne31ar ~oo~ portlors 111~ ~hicb Go~inu~s iato - :
el ~o~n~rdl~ dir~gte~ ngs 112~ ha~ing an i~t~ra~l thr- ding llS to
~ngsge tha threading lOB ot th~ ~ir~ bl3r 101. Ibe tt~ bar ln3r
2n cO~pri~ di~phrag3ll~ io as alay be so~ Fig~, 3~ o1' oonioal ~h4pn in
its inltial pooition ~ith a aeg~'ciue ~n~10 ~nd ttl~ inclinod a~yla in
r~lstion to th~ borizoa~al pl~s~ ollb~n~ally corre~pond~ ~o the :
atiDn of tbe obllqu~ ~dy~ portiun lU9. Th~ c~rltr~l p~r~ 114
o1' th~ diaphr~p 18 prer~ræbly th~oka~lfld to ~or~ the lip o~ op~ni~g
115" ~9 pe~ph~ry oi' th0 diaphr~ 103 i~ r~at~ d bo~ th3 :
~pp~r ~dgo porti~n lC9 ot 'che outer rillR 107 aad th~ ~nul~r roo1'
portlon 111 lsa~ g ~ nexibl~ body port~o~ ~xteadlr~g iaw~rdly. The
rs 101 ~d 103 foro ~ ~al~ity ln tb~ v~lwO
Th~ rourth ~e~ber 104 ot th~ vdvo ~noltJd~s a pro~octio~ ::
havitlg ~n e~d porélon 116 ~hioh i~ v~d in tbe oponing 115 ot th~ ~
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~laphragm 103 in the cJo~ed puRitien o~ tha ~ V1~17 ~B8 ill~8trQtl3d
in Flg. 3. ~ w th~ ~nd portion 116 o~ v~lve ~ r 104 i~ d~ Qd
aa ~bu~ent porti~n 117 ~hi~h angQgo3 the lower cide o~ the ~dgs~s oS`
~ha opening llS o~ the ~iaphr~g~ 1~3 i~9 th~ pOsi~Qn illastrat~d in
Fig~ 3. As ~ar b~ ~en in FigO 3, the~ up~er op6nlngs o~ ~h~ obliqu~ly
po~itioned hole~ 110 ~re p~rtiLally co~ered br th~ lo~sr 0a1r~ 91~ ef' ~ .
th~ abu~ant po~ti~n 117~ ~ha~ the ~J~lve io clo~e~O Further~ ~he
~ve ~nbor 104 has ~ v~lv~ st~ 2~nnill~ thwtlgh a s~nt~
openi~sl 119~ nad0 ~r thls purpo~e~ in th~ ho~tc~ o~ the ~upport ~bor
101. ~e ~ree ~d o1' ~ ~alve s~n 118 n~y b~ 1:hPead~d 8e t~t ~ . -.
8top ~e~a 120~ suGh ~8 ~I RlUt an~ loGkin~ ~aut9 a~ay be attu:h~d to tho
ma at ~ daoi~0d hdQht l~val.
Whsn thc a~1'ety v~lve E~ OdilUallt i8 utili~e~ euch aa ln a
cors~in~ or pr~ssuri2ed s~lr~ th~ pre~eure tænd~ to d~leot gh~ dia_ -
phrag~ 1~3~ oae~ th~ praesur0 ~t ~hl~h the ~lve opene ~a
ox~eded~ th~ diaphr~ deneotsd to ~uo~ ext~r~'c th~t th~
di~pbragm ~OY00 ~raR~ the p~sit~an shobJn i~ Fig., 5 deti~iag R nog~tive
~ln Sir~ bsoo~ g subsl;anti~r planar Qn~ ttlB~I ~ontinl3~n~ i~to
8 p~8it:iU~ angle. D~ri~ thls ~o~m~t tn 'ch~ 2ero po~itloa~
213 pltl~ar pos~tion of th~ dl~phr~ th6~ VellV8 ~bær 104 h~ b~aF~ rri3d
~loa9 ~ith th~ d~Qphræg~ h ~o~n~ th~t th~ valu~ ~0~ ~I?Dt 5p
Tbe p~lti~ ot tho stop II~JD 120 i~ thor9r~re 85~ :~
~olo~t~d tb~t it wl~,l ~g~ge the ~otto~ of ~h~ Gen~otlon pl~O~D 103
wh~n ths dlcphrag~ r~ohes the ~ub~atantilally pl~nQr po~1tion~ ~y
the ooatinu~d daforwation a~ th0 body psrtio~ oP the d~aphr~g~ 10
~hich~ in ths vlcinlty ot th~ pl3n~r positio~ oocurs rapldly and
with lo~ reelstonoe~ th0 opening 115 ot the dl~phr~9~ ~111 be
dis~Rgaged rrom tha pro~00~ion 116 and a prs~eure reduotion ln tho
u~lva cavl~y ~kea placo. ~y the dis~n~e~n~ af the opsning 1159
J0 the disoharge ~ill becoma gr~t~ aincs the d~ ction o~ the diaphrQg~
bsyond the plenar po~ition ooourD r~pidly~ a~ d~soribed. Upoa th~
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rapid pr~s~ure r3duotion in ~h~3 v~u0 cavit~ tha vsl~le m~b~r 1a4
t~nds te bs pr~s3ad ~o~n~ardly to it8 initial positio~a~ thu~ ~lvln~
~ aximu~ disohE~rge opening 115. Whan the pres~ure h~s re~ch~
a prsdetermined lo~ ualu~ th~ dl~phrag~3 ~gain r~tl~rns to ilt8
laitial pO8i1;iOrl~ thereby olosing the valve-
It ha~ b~en ub~ervad that ~lo spet:i~l ea~ling ~n~~ra r~quirod i~ th~ ualv~ str~c~s~re~ which~, n~tu~lly~ 19ald5 ~CO
a con~idersble ~dvant~g~ ia i~R~alf. In ord~ to obtslR a ba1'fling~
3tlch a~ a noiee b~f~ling~ o~ th~ gas or ~luidetr~ s~plng rrOo
10 th~ cpeQin~ ~ s~table do~laoti3n ~n~ may ~e provid~d ia ~r~r~t
Or the ~peni~ig~ to tor~e ~h~ ~tre~DI oP i8~119 ~luid to revYr~
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