Note: Descriptions are shown in the official language in which they were submitted.
' CA 02297033 2000-O1-20 ~ , r~ _
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-1-
PLASTICS BOTTLE
This invention relates to a plastics bottle for
S carbonated beverages which has a so-called "petaloid" or
"footed" base.
The use of lightweight plastics bottles is well
known for a multitude of products. Since the development
of blow-moulding techniques, clear biaxially-oriented PET
bottles have become widely used for carbonated soft
drinks, particularly of 1 and 2 litre capacity but also
of 500 cl capacity which are sold in direct competition
to canned drinks.
Originally, the base was formed in a domed shape and
a separate base cup was used to provide stability to the
bottle. In order to reduce the cost of using a separate
cup, the base design evolved into a so-called "champagne"
base and the now popular petaloid base which typically
has up to 7 feet separated by ribs.
It is known that such footed bases must meet a
number of criteria which in some situations may be at
odds with each other. For example, it is essential to
minimise stress concentrations so as avoid failure of the
base which arises when stress cracks are initiated,
particularly when the bottle is filled with a carbonated
beverage. On the other hand, the base must also be
readily blow moulded and should be stable when filled,
even when internal pressure changes due to temperature
variations for example.
A~NpED St+EET
' CA 02297033_2000-O1-20 ,
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-2-
US-4785949 (Krishnakumar et al) proposes a design
which is said to limit stress levels by maximising the
cross sectional areas of the ribs and avoiding sharp
transitions between the ribs and feet. This design has a
maximum of five feet separated by wide ribs.
US-5024340 (Alberghini/Sewell) is directed to the
provision of a stable-based bottle having four or five
feet separated from each other by hemispherical ribs.
Inner walls of the bottle feet are made in three parts
with a generally perpendicular central ring segment which
can flatten with internal pressure, such as arises when
the bottle is filled with carbonated beverage.
Another plastics bottle for carbonated drinks is
described in US-5024339 (Riemer~. This design has seven
feet which the patent recommends for small bottle sizes.
Small half litre bottles may comprise plastics material
which has not been fully stretched during blow moulding
and is therefore not completely biaxially oriented. This
patent recommends that the ribs be sufficiently wide to
provide pressure resistance but narrow enough to ensure
optimum stretching and biaxial orientation. A suitable
compromise is said to be provided by a seven-footed base
with the feet being separated by parallel sided ribs.
The present invention seeks to provide a container
having a base which provides improved stability whilst
still ensuring efficient and easy blow moulding of the
container.
According to the present invention, there is
provided a plastics bottle for carbonated drinks, the
bottle including an integral base, the base comprising:
AMENDED SHEET
CA 02297033 2000-O1-20
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a plurality of circumferentially spaced feet
separated by valleys which are substantially inverted U
shaped and have side walls which are at an angle of 25°
or less to each other;
and in which each foot has a flat pad, the radially
outer edge of which is substantially arcuate, the foot
pads together making up a standing surface for the
bottle; and
the total length of the outer edges of the foot pads
is at least 35°s of the circumference of the outer edge of
the standing surface.
Af~ENDED SHEET
CA 02297033 2000-O1-20
WRi 9~ifhi(3." I'C:~'/c:,13f8/02296
- -3-
The base of the bottle of the r~resenr inven~ion i~hus
has relatively sharp angled valley side walls in
comparison with known bottle base designs and
proportionately wide feet. It should be appreciated that
for assessment of stability the important part of the
feet is the flat pad which will contact clle surface on
which a bottle will be standing. The base of the present
invention h.as peen fo~.lnd to g__ve Px~ell_e:~': stab:~l;.t~~~ taut
also, :~u,~pr~_sing.l~,' giver. tree :iange Y-oot ;gad si.:e, the
bar? i:; easi;_~~ m(oll~ed and ha's gr,od stress crack
v~c~~J_..,.~znce.
Thn s i. ~e o f tb.(~ foot. pad,- wi 11 clea;_ ly ~; ary
w
rlccordincx o t:h.e ~_~~::!rbe:~ o f feet '.ls~~c ion ,~ spec~_ _=:1~- b~;nse.
T17. C:~df'r tQ I'1,31'l.t;~l:i.n ~_'a5E3 Oi jIICllICiuhlia~',1, t101J~?~'e:C,
it 1.S
~).rcf_,e::~:ed. drat trho t:;ota'_ 1_enat:h W= +Yy,_E, ~":;e.- ei~crE?~i ni
the
fC)~t pc,~.;: '_:i ~_!nc~;i rj7.a;? 5~J"o' Qi'_ ~rl~
C:_._~y'lllll:.F';'E?j',C:E'. Jf 4,.:'~'E..''
,~utwr. wine c:W ttl~ :itan.dirlE~ s~.~.rface.
.~;rnil.ar:i.y; in order that. the bot'le mainta~.n;~ gr,;.~d
st~abi=~_:i~~y a_.rrespec:tv_v~, of '~ot!:le s:i_ze; ~-hEe lnng~h o:f the
E~~1!~c:~ (aciae o~: ,~ f~;: ~ gad ,sh~>>_I', d pr~'r_ej::~bl';' b~, r,e~!
wt~e,~ f
%1:).Ci ~ ~'O~j ~_ ;Ill':' 1 1 f f
_ t.zEa .; id -r, o ._ r~.'~. F_ im.. _ c,nae;i -:~ -~ =~ ~ i: c~ i: a
Vr7..~ .'_r~.;y .aC F.h.(~ b~'1Se Of thE? ln'..'?rtE'_(i TT.
Tn.~' Vil~_i.E?VS mu3'J be ;t~C?c3 ='__J 'W7S__-'.lfW,:<.-~. -,T-f7~7n;Y~' '.
S'_J.l~': ~a~lE-'.~11 _% ~1?IT.Il_'iy'~~"leL' ~_Cal %~;~r:l(? ~:Zc3~J1i1Q a
CE?;.ltral rE?i~lon
1J~:: ~:i'i ;:!)ilj7rJ_.i'?S a'.1 ~?vtE'_rnc31 ~=,1 CQY1V?a' ';E?~~1.7r1
~~;?j'1:.:'lxfl:~C-_~~ by
2n °.'C~~!?.".':la~_:~''~ r'.'~1'l.r'.;'1';7~ fl?'St 3?'111L~1~.::i
%'nd ~a.P E?i't p:=;~.a~ .'_y
C~,li~,?« '~nr~7y,,,1 :~,nTi'7.'.'.~S !1~;if',''1. f.'1~"7e)_'~' _ '',t;E~
c . _1 f~WC: n:-1 W r.,~
cn ~ ~
.._..(? c'iil(_) ~')'_~ry(~5 1.?'~.~..~, f'h_, 1-lE~.li_~ph=""1.~~;~'~
.~.~1"'~7 i'ii7 '_ ~,a
' ' ' . c
nnoil~:i. to ;~i~~
..,
A ~~.l. or~~ ~°_~.rmi~.c~r moLr ld ha;; ,~ ~lo!~:'_c~ c~~ > ~ c.W~_
..' . __
rn:-~.,~yf?':1'?Ilt'.ili_=,~ 1. r?. ;i~'1~~~ t0 t ~1~? ~W)t'_. . ~n '7E?
~'l:=m%':~ i%: ':yl3t
t.'.,,? ,.'F'"'.~ ". v': l -~r~,lVr, ;y ;-n~ ~_OZl .'.) '. a TD.'?' :1.C'~ (~~
~': ~'''',F?~~ a' F _~'yT~. t-~'le
CA 02297033 2000-O1-20
w~ ~~inF ~cr:
F'C'fnl.a'a9'.3~02296
_ _4-
bo'~tlw of the present invention will receive a l~ref~~rin
gate. i'he annuli increase initial stretching of the
prefo:~m away from i is centre, tius keeping the pre form
away ,prom tha mould for as lung as possible and limiting
st.res:~ ;-oncemtrati~ns in the centre of the final bottle
base.
1l1 one ell~lbodiment, the bottle base includes five
t~~;~ : . I~: th _ ~; erlr~o~iimen'~; 'she an yl~. _Lr ~-~i-en.'~ .7f ~ fi:cw
,.
pr?(a.,. L . :'~' . ".-~:c? clilE~~_~° ~~Jl"~? C~1 t:~'1e:? ~'C,)~_;it
pi3!~_i ~tl~'~t:c'.,!'7~I ;:I'. the
:i(:~::,~~:i.i~_ld:~~m?. al,ci _> c~_: t~l;i)o'.:v:le; ri:al~ l:)~~ ;~'.~
u,~as'_: 2 '>°. For
cap;: U_ ~~lU~.Nin,~, t.ze foo~~ pau i s 1~~1~~':~ded ~ ntc tYle ~1 de
wai 1 cf .=.'_~a ,ndjace.n~ valley b~~ a >_-adius c,~hicll, for :~ f=ive
tccved base, may :~e at least 3 mln, but is preferably at
leas ~ _ Irlr .
- - :
i1_:1 ctd,~c.:Iau~C. m ~ tllf? T7;=~_,:fai.._ .rt_..~E~Ilii.uC?1: _~S ti lc.
t: 'il~:;
~:'.:>v;f~..:.:1._+~ ,. u31~::.J. .t:~ O ' ~l~e :~l.~t..:: L ' 1 _..
:,",i;:al:.:.E-. .tur
c, I: ~L::C~:~
._~
_.~.;:v..:,~»-.;. ~._:~_r.u c:n :.~1=:;_ co":-r~:yr~~~;, ;»:~r,d.~ri~~r on ':r
ewer.
~w:w.'a~:~E.a:,. ., ,-.or,~ge i.r. ciom(~st~~ :~c'.'~~.~;ew:,torw !':=
C~F~'t,: ~.__
frC)rl:i r."1:L ~W':.~ r~e.l~-?::.!~li?~=s. ~E'.t:=lyr'.'_'ot;C~,"~ .n d
(~rl:_.:.iPl (~al'__rlE:'.t$
:. ~.'-_~',.;~1'::' rave sh=:''ves made from. sm,~.l' cxauge va_; f," w.i~:h a
sp~c:~ru~ n~ ul~~ '~o ;.5 mrl on tah:ich bct=:~E?; must .~*~anci
tr.,=lla~7~-: t-'_ ~ ~ r I.n
r~ . .=_e -(~ ,.-E.,(' e~r,~~nc' p.r!~~~n ;.. ,-, ~ ~-;, a , e;: ~ '-
, .. . l,,:w . , ,,~,1~ ~_:__(-ur ~.: i 11
hE' (.f'~;~1'11°d y~r-_t~:'. ?''n'fe~"l~j:C'.E? (' ~)~?f''
C~:'.'.341.'_~~.~-7;=', ~.:1
r.~~.. c.i-.:
~'i CTi7.?''<' ~ . ~.. ;>.1_dE? ~T=_E?~,I l',f c'1 1'',Ofi+'.~ (?
;3t'.'C~CI:.'E~? ii(':! '.O ~he
-i ''~?e:''._C).".~
T~-!Cj'.:':e . :'~S :~. a!~'~'?erCla.t.!.~._" ~':'!.d'?~lW~i?~- V_'_et'~ QF +-
hc- bottle
r-. L s= ~ ., , r e-, ~
"._ .. ,__ _ _!
"7. "'',1!"C: ~ ; ~, ~ '~?'.Cj'.;"'J.(~'_l'ii~. "PCB-? nr'' +-~~.'";7': ~T?,
f'tl: ~ ~. ~ ne
~.j~,.Ow.y_nrr ~, FCiO~' ar!.C'.l C:?~>,p,~?1,-lr. ~J;, 1 ~_ _ !:
CA 02297033 2000-O1-20
WO 99/07607 PCT/GB98/02296
_ - ~-
Figure ~ :is a developed side section through the
section TV--I'T tahir_h i.s the st=anding ~:i_rcumferer,.ce .)f the
bo i.Y i_.~ of f i_gur.es i. to 3 and shows the foot and va L ley
pr: ) v~: __ ~ a ; and
Figure 5 is a .similar profile to that of fi!Iure 4
for a prior art bottle.
Figure < shoes a bottle 1 comprising a neck 2,
cyl:izdr.i.~_al. body h.avin!~ side wall. 3 and :~as~= S. The neck
and c'Y~li_n,~;r.i_~~a~- s~d.e wall ar,~ typical cf kno~.~m n~'T
1~.~'~':'_~s cies:'n~.e~i f~:~r carbonate~~. .sof'~ dr-'_nks. T~:e r~.wTe1
- A a
,~a ;e: of Iris invention is shoran in more detail iu
figurfe:~ 2 to 4.
A prefe.rr_ed ern:~o~?.iment of the invention which is
particul'srly suitable fog= half li~re bottles compx-ises
five feet '.0 havi .r..a a "peta loi_d" cc~nf i c;uYa.~-i on a;; can be
C'l E:'a?:'1 ''7 ~~en 1.n f ~. r?'T~rE? ~ . 'f~'1P 'Ee~t 8.Y'e f:C~llJ_
S'')?CW a ~~''otznd
thn ?~a;sP ar.d .are senaratPd, from. Pack C!~hAr by '?al.l~''Ts 20.
r:_~ ,e of. each .frsot 10 inC.l_~~deC a f)_at pad 1?. ~u.~h chat
whe~. ~-he bott.e is standing upright the five pads ~..?_ vtill
be in contazCt '..rith 3 shelf or ta%~le. Ths five f~ad~; thus
m.a.ke '.:p a stand ~_na or supp~~ri~ surface fco:~ ~-he b~*-!~_e .
outer ednn ? 4 of each pad 1? i c a.:~cu~.te .irz ~-h,3pe
so e'=.c:'~ pad. cortpT: __ s ~s a se~~ment e.f ~-.he ~~.:ppo r fi. ~': r. t~-
zcr .
T~. order t-.o ens».re ~~nt=im~.zzr~ !-abil ity~,, ~-a~~ have +=nun~?. -hat
':.'-.~> . ~.;v of th.e ?.en~.~ths i f of_ the oute>: ~.rcuat.e e!!cr ~;>
''."'.C!'J.lt~ :~.ltn~a'~1;3 he at lE?8.~ ;: ~J'~ Of t~.~le Ol7tE'_1.'
!~lrt'.',~.ITIfN.i:e.°).C~E'
of t=he stand.inq .,-ur Face . ",'hi s is ~°ead~_?. y det er~~.:~ r cct
from
the standing di ameter D,_ as shourr in fiau.re 3.
F>1 thottrtlz the 5,vidth o.f t-h,= na~'.s ~-.hemsel vPs ma.v not
SC'G-'rl:l :ar'!~:° W::1E?'?. C:C)Y:1T~~:1_'E'.d 5d?.tr! '~rl~~
C:l_"'C'll1'lfarf?nCE? !':,-. t-~':c~
itall.'~1~1.t~ .SU.~;_~~'.~-~, .''?.°_ S'_l,~E' T,T;l~.lO ~~ 01 t~~'lA
'J ~1 ..
y ,.:
,1 ~ ~_?lc.! !=.er; i,-, .,g~« ~,~i- , ~~ , :, -
_ a... El r. 4aE. ezi t-iie . . iE. 4a _._ .
CA 02297033 2000-O1-20
WD 9~~fJ'751~'1 f~:T/G~98J02296
-YJ
beirvg less t.zan 25'~. As a re: u7.t, the foot pads '.2 are
mtt~r: r.lir:Ler than thE~ bases 24 0~ til:~ inverted U %=,tm~.r,~d
_ ~ ,e. ~ .
~~'ne ang=~e 0 is the angle for 4he profile cf the base
whic_:~ r~as',lts frolr~ a developed ( i . a .. opened oat', se(.: Lion
ti~~~ou(z IV-r~T, i . ~~ . the standing ~.-i rcma:v(~ro.zc~s ~:W the
bottle as shown in figurE, 3. 1'hs value o:E E3 is maint~~ined
mcre c r ies:; constant radial ~_y i nwa ~ ds o f tiie sec:t..ol1
sln(au':n _L)t fiEyi._E, 4 1>>.u~ Inay open ot~n_ as at~~, va.L.i(~y
~~_.E;r~E~s
.__. ,:m bo~.:tle sine wall ~ where :>'~ifiluess is r:~."~ "'~
cri ~ic_:a.~ .
r
i'h,= ~,wc?~ch o:_ ~(ot pads 12 is de~c,::.::I.in~.d i:;j c'.lc
l~nlg ~:. oi~ h lE: i_r a ~ cuw'te ou°~~ r cc:g~~s, ~ . t~ . :~~ . Al
t.i,~cu"h
_ .,
th.e ~)~~.so 2~~-_ r;f ea~_h v"lley 2J i:~ ;=t~.:-~od, b~,~ »e,:.'.:~-,:,,:,~
~ uG'.'_1i~ ~" ~$ c, fll.~ E-t. raGlt,.S, thf 'h'1 C:.trl Y ~ ;~ ~ c'1'
i:.~ :'"'.74, t,L ],~;=. = _ 0 ~ ~,-'j t, ~~..: 1 C: Y ;_ ,~~ Iy CMG : _.
.'ICS ;.)'~.E'E: w,..
wt = ;.:r' ~ ,:.??.C~~ t~T'L ;_y?. lalE: -i=°O.Cllli..g ~w '=~ls:'
~rt:.:lnT:~.; :_l~;.V ~ - _._ .. . ,
E- ~., , t
....c_. ww.'h ~.:,'~ t:.h~ ."~o;: pad ~~L i~ i.dErall~;r betw'eerc ? and
. e..~ '._lf~.E_ = _ . T<....._ , 1.
2~ ~~.'-,.E' t'O~)~ J71~~': 1.' ~ r!? j~~!~Tin.r=r1 ,_il~O -:~:E? ';T(311"%
.~.'~f:°
!'Jc~.l ~ 5 77 ~,.)_,' ~-~ 3."%?.C~lf.S ~, ln'hlCri 7~' ~'~~E:''tc.'i~ t'n
:!1:'L'I'P _°c Se
t~:!~ .. ~.~'~~~".T~:!~ :!:: ~~~7.' ~.-.i' OL f~l~ t;ir':~~ fW:'"' S. ._
._,ll(.a. '~ =:_'-i:)'~~
~,r~:1 l.~r, ~:
T,.; ~f~.:rP ~ '~~Ir7';:"' ~._h.P ~:~C).'~.f 1 ~~'1T",~.~. ' (J r). . , ~
..~,o.'..."..,
_ t.r.r~ _ :_ j_ a
~-r:? ~-nt-,C=~. hn+.~.lc.: ~1,3s~_' ~. 'j'r!.e S~-_(:~.i.oCl ITI-T_'-_
F:c35='~;i
ta).:1:E:~':. X11 %' ~-1..~)-'lt:j'?)~.4'-.'l:"'.l'~' ~~,'?~ l'"r' ~~ ~Ilr'~
t'llf~t 1_fj ~ '_n t-rE
f~t~T1'f"!'r.=. '~(? r1f f1'?.C? hn;iF? fh~~'~ ; ~~ ;~r~ E»r+-nr-~~a.l ~.,.j ~-
r)r~T_P~.
nrr~trta:;_i_o~ 3:? . ,.~t:.rrnu-,ded b~,J ~:~onc3ve ;~r! y. oon~~w~ ,-.n-~a~
l.? 34
%~r:C:~ ~f) ''E'~._~~](5~-~t;tjr~.?'. ~'hl.S ~~1,~?.j7? l,p ~':~~'Lr>,.i-nCl'
!-'E', i-'-;'+ _ile
3~ C!~.i=:~ r,~f ,~ ~r~?sCrIl ~j (c~lO~~In 131 C~O)-'~r''d ~.'.1'1,('.~ :'_n ~-
i~."l'.'.'(~ i~
~~Il..' '_ _.t'f, ~nj]'~,r~+- j-h_E? :~,LOII~E:~. 11::1'~'L~ ~_a'=!? 'i ~~_n
1,1.x.,; ~~n
CA 02297033 2000-O1-20
WO 99/0 i6~7 I~~.T/~;~9~/02296
p~ore~;s. mh-'_~; en.sn.°-es that s!~ress co~lcf~~tra.t~.ons a'. t~ze
da.'n region ~:_-e keyt to a m_inimu~n. ThF~ .~onc ,izt := ~_r; rinn~.lli
34 3F serve to protect the gate r~~ion further,
the bottle shown in figure 1 to 4 has five feet
which is suitable for bottles of half and ogle litre
capacity. However, in order to maintain the vallAy shape
and wide feet which have been found t:o be essential. to
the ; nver~'~ ~.on f-he number of feet mail '~e trar~.e(~.
r~C'(,nr[;' r?C( '~C7 ~)'?e bf)tt l.~? G~.13r1~t:'_''= d.nd,~nr r'3j7''
.~.~.~'~'. 'T'l",,p
v<~r ~_'st: a ha?. f l itre cr'.pac:it:y rot:t~_~ c:o?~ld ~tsnceitra'~l y
iza~~c~;r;' y fUllL' feet, it ma~~ re necessa.r~_y to ~.ncrc:a~-f: the
number cf fetat i:o, say. sever. for lal:ger bcytlE~s , Tt will
be arp:~eciate~? that t=he n~,lrrrlber of .feet i;> t=he.rel:or a no~
esse.-ltinl t'o t!~e present invention. si.nc~~ i+- m~~,' need to
bt, =Ta=.-~.ce? if +~he (~rite.:~.ia wh..ch n~re have found +-c~ bP
c-.r;_t-twafor (-.(~mb.is~_n stah~.:! + ~a+~ - ~-; f
q -y t.. h ea P n hl. cw..~ 3~c: and
m~.ll_.1~.l:m s ress ccmcentrat~.ons a_~-e +~o h(' met
'~v:en trar~'i.na the ntllnher of feet, the ancr~a.l_a~ ~~;~~c:,~t
or. r, f t~a~wl1 :o.;ci- ~-~ad ~: ~_ J_ ~ a'_~c change . Fw~_° a :.'
~r~_. for r e~?
bGa:~_'_(~, l'_tii;," i3T~C~J_t- C!. SllUlliil bL-'' e:t ~E'.u:.t ~.J°
f'vr C;:~t:illluTli
S~c:~l_'_l.~l.y. Url l:.~lf: t;l:.:h~~ hdlld, iUr east' ci ~.Lt:,L;:~ng ~>
1=:_Ve
i=c>c;t:ec' kvotrl. ~ f, i.rw 1=~,ti~us k. s~-ould (~2 ~ _ .l~~r~-' 3 it~~n,
:=E'_.t':: e.~:~.,1 ~;t _',_y~,:~~. :.~ l:llil. '.~I'.f:l t. . ,. ~
C',Ol(~'::(~I :_C:Ev :(~ l:E.
ll~.i~c'_E: ~.'C.-t=4~lE.E:T: ;t:c:~~~..':_aj% ixllC~ t?~a:pt'. C?f li'.U4'
~l,.t~ :_1'.C.~r c.;.!.tr'.OUgh
tightE:r radii would enable al~crle a to be: mcl_eds~u anal
zhert;by t:l~e ioot~ paci w~_dirl, ~:~s the rada ~_ are r_eciuc,ea the
bc~:~: ~ l,c=ccl~.e:.- ~ry(_ra:as.~rgi_r° cilfv:~cu.~t to bi.o~~.
~.ttc-; st;~:i_d__,,.c; (' ~ ~rr:E~tel: L~.: cf vl:a ,.~t =le c i fi~vreC 1
. ,
_..~a..L .'( c~ the W v,,=i:._.~~.c~e v~ta:i_ t.:~~unc:Le;:~ Db.
~a~.r~;p:_:.
CA 02297033 2000-O1-20
k't',T'/ B98/02296
W4 99'~?7F07
_ _8_
l'~ fire footed ?~ott.le similar to tha~~. sa:uown in
figures 1 t~ 4 .and h=.~aing a half lit.rc~ capaci'y:, t~3s blow
-r~~,zldea. 'ih_ ~:rit ~_~~al parameters accor~s_ng fic the present
~_nw~nt i.on w ire as Follows
.coot pad eai:3th .1< 12 mm
Valley angle l~ 20°
'ia~wl~:~ ~.-adia;; '~y, 2.3 c;ur.
' % v -~ 1 a ~~ v ~r i d _ : : ~,a f 4 . 7 rlzn
.. !i~ '~raly~~j~ 3:~i u; Ri ~ _ 8 r m._.
~a~ld~_m~ d-a~a.~~e:_ ~;_ 49 rntn
~~Wt-ye diam~tt;r 68 mrn
:'ool~ pad angle tx 23°
~'oo+:. - ,'oc :. spa;:ing F~ ~ E; . 7 9 mm
From ~:::se v,J.3-.~~eiv can be seed ' _
t_lat. thE~ tota:~ ~.,~ngtl~ of
~:lE? aLt.=,-_ E:.:,'~E:.i ~.7,: ;,}?~~ LOti.~ pud~i ~5 .;'~ i~l:i. 1'Jt~~Cil
~i ~.~~e Of
~_.._ ~.~.r=_:~w~:~. .: ~ v_~:e standir:g surf,3ce (i5=~ m.~n) .
Cornpa._~~::.v; _'x~~.m~"_ '
.-
~c.~~,.t,~.~ '~ ,shoc~n a f fth pac~: wr ~ ~urior art na1f_
:Litre bco:':le bas: ha,V__ng f:~vt~ fc,t:t. Comparal~~-~ p_.~amerers
j~Ji_'_1~ '-.L::,yen ;~~C?'gyp i~~ ~j_r(~~.r~ 4 r'~'.t'E: '-lr~,?rt, ~' ':
VI:T-' ~ ~E?
:'.c" ~, . -.?a; :'"7'j. t' -'vr , ~ ,-y~.a:; ~.',C?,~ iJ~l it d.~'ila. ~.
:_'i:lr~ l' .:_'i-: ''he
:_~~~.CC. ~:
c;.",. . :r . .'.7=v: v:uv ~c:.r '., ~'h'.).s th.e d.,.
~~;:~:- .-E-_ : =~.:~1.~;t:_~ v:~aa 'oo t spac_Ln;~ F, ~ . B and D are thlc~
r~~?.~_a.:. -.~~3-~~~~ of '-hw Flat pads r>o ~liat AB .and DE _~-~:g~l-esent
half '.hn x,=; d'h of +-lue r?ad outer :~d.~es . _ is r'~e ~n;Wr a of
tile
'!'~.e nr;,-,r ar~: hott.le des:~rn t~l~as h~.;; ~-~c~ :~c~".n~ri.~zq
Pl..'_%:~I'.1"+''?~-y F,lh~.(~~" ~°?n l-~? (~Cl".11~%~.T~:~!'7 1'~lt-
y.,, .y_l'l~~,E' '~f a;h,o h(1~'1-.le
~, F ,,:;T-,.r.17.~~. , 1
CA 02297033 2000-O1-20
WO 99107697 P~CT/GB98/02296
~._
'r~c +~, pack. w__c~tr:e. 1_f' 7 ,. 32 ml:~
~a.a..iE:~~ anc~l.E: ~J' 50°
~~C:..__..E~y a:c;Q__li5 dsy' <~..L.~: IC!I;1
~ -:;c~ti v~::=-..ley r~aau:> Rf' S. 7!~: mra
't v a r.~~i r.c: d~ a:~;c~ t:ar 50.. a mrn
1:~:.~t:ti.e diar,~:~ter 68 r_un
Fuc t.__f-c,oi~ a~~~c.ir_y F~' 31.55 nun
T~:e i~c ~w:~ ~' E;r.r~-+',. c' the outer ec'ueof f~:e ~.:ot ~a~3s for
the pr ; :~r a.r',v. ~:: ~ '1 ~: is thm:F:four~ :'~;, ~~ r,:r_ ~,,h...cr, =:.
c=~:_y
.2 ~. ~'° ~: ;~ t,~~.~ c:.cu-,.'~E-r-cr.c-P of ;.tee s'~,:;n.c1? I~g
su!.r_f.acE.
Win; . sc;:r~:.. ~c~:_ntly less ttw.an tl-:e 39% of example
1. ~'h~_°~E: ~.~ ~:,:~~ a:. dear differ:once betc~een i:'~e va~'_te~~
anrJ.e ~" c i :~8° ~..~_: th~.t of example i.. where 8 is only
20°.
il.c Vc,ilit~ C~.i'~E:Ii fOr tnf; bEU~tiE' CiT i;.Om~dLatiVE
e~dnt~it; i c~iE~ ~y~,ii_~..'~ Gf YriGi c.it i.ive iOUI..CE.I ba5e~. ~~'he
angle b~ would typically be between 50° and %0° and the
proportion of toot pad width to standing circumference
would generally be between 20 and 25%.
Zhe bottles of the present invention have been found
to prov.~ue e:~~,~.iieWc stabii.ia:.y urv G wide ra::=~Er o:
EI_Uv.rc._:~.ErL~a~ ~i,:.;ui._;_or:s. Futs_im~'LtccosEr, rr~~. ~~~.se~
~:.i_ibiv
f',:'.1__y ~.t:CE:yC.<x~~l:: ,'."i.;ic:;p;p C~aC~: :W:;~i~~t.~:.fis:e ;:.nu
i~ioc~ab~.'_; ty
dS Y'E'Clt::: L' _~(;u ~~y t;t~:ulil c.r.'tllL"E:r;S ~:I:.C.t ~1.Z ~ E?C ~ .
