CA1037422A - Pry-off closure cap - Google Patents
Pry-off closure capInfo
- Publication number
- CA1037422A CA1037422A CA206,701A CA206701A CA1037422A CA 1037422 A CA1037422 A CA 1037422A CA 206701 A CA206701 A CA 206701A CA 1037422 A CA1037422 A CA 1037422A
- Authority
- CA
- Canada
- Prior art keywords
- container
- cover
- closure cap
- cap
- bead
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/14—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars
- B65D51/145—Rigid discs or spherical members adapted to be held in sealing engagement with mouth of container, e.g. closure plates for preserving jars by means of an additional element connected directly to the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
- B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
- B65D45/30—Annular members, e.g. with snap-over action or screw-threaded
Abstract
PRY-OFF CLOSURE CAP
Abstract An improved pry-off closure cap is described. The cap has a composite structure comprising a metal cover disc held in a molded plastic ring. The plastic ring has an inner groove for retaining the metal cover and container engaging means consisting of either spaced lugs or a continuous bead positioned on a depending skirt portion of the ring and pos-itioned below the cover retaining groove.
Abstract An improved pry-off closure cap is described. The cap has a composite structure comprising a metal cover disc held in a molded plastic ring. The plastic ring has an inner groove for retaining the metal cover and container engaging means consisting of either spaced lugs or a continuous bead positioned on a depending skirt portion of the ring and pos-itioned below the cover retaining groove.
Description
37~
The invention re.lates. to an improved composite pry-off ... closure cap and more particularly to a pry~off cap which combines . the advantages of a metal cover capable of providing a vacuum seal ' w~th. an e.asily formed, attractiye, and e~fect~ve plastic ring for ~ re.~oyably attaching the cap to a container., There are a numb.er ,' ' of prior closure caps whi~ch. are retained on containers by spaced ,,~ lugs or ~eads and ~hich have a composite constructi.on~ The.se prior ., "" caps have.various drawbacks including relatively complex container ,, e.ngaging ring portions~ an qyerall unattractive. appearance? h.igh. cost ,., 10 or th.ey may haye lack.e:d th.e capacity for being attractively decorated , , with legen.da and qther lab.eIing matte.r, ,~....... Accordi,ng to the. pre.sent invention there is provided an . ~ .
':~ i,mproved composite closure. cap for aealing a container having a ~,' radi,ally outwardly pro~ecting cap enga8~ng bead at lts rim comprislng the. comb,ination of a molde.d pla~tIc ring having an annular cover , .. . .
~ porti.on and a, down,wardly dependent ski,rt 'both of said portions being ,`' . . .
:',, relati,ve.l'y re.ctangular in corss-sectian ? said coyer portion and said "'': aki,rt porti~Qn.be,ing coupled together by a corner portion ? inwardly ~, projecting.contai.ne,r e.ngagi,ng me.ans on the said skirt portion for !
~ 20 en.gagin.g .the.'conta~iner bea,d h.ayi,ng a generally hori,zontal container S.:,.i.~" bead'en:ga:g~ng porti~on at lt8 top a.nd a gui:de port~on th~reb:elow ,^
ormIng.an.:a~,cute a,ngle:w:i~th:.'the yertlcal? s:aid cQye.r portion? said ''' ~i,',~ corner' p~e ,i~Qn;~.~said s,k~rt portion and sa.~d cQntaine.r engagi~ng means, ,.,. ';
coope.~at~ng.. tQ.. ,fo~ an ~n~a~dly facing channel`, sa~d rectangular ~' k~ t po,~t~qn,.~o,~ing a~ gid pry~of~ means spaced frqm th.e.
cQnta~ner ~q'll, a ci~rcular ~etal cap.coyer pos,iti.~ne.d ~ithi.n said ~ pla~9ti~c ~ng(-~a'v~ng a oute.. ~ de~p~ending s~k.irt receive.d wlthin aaid ~ ' ,'',~, ch.~a,nnel' h.a,'y~ngt.~ts lq~e:r' edge. poaiti~ne,d' ahove said B~e.~d enga,ging ~' ~ p~t~Qn,~o~.'a~,a,id~container` e.nga~ging me.a'n6 and ha:ying an outer annular s-' 3Q t~p pQrt~on ~n e.n'gage~e.n't ~ith.the~'unde,rside of the cover portion ~,!,~ .
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of s,aid plastic ring? and a sealing gasket positioned in said cover .~
-., ;. .: ., ;, haying an annular container e.ngaging portion positioned adjacent ~ ., :: to th.e out.er edge of said cap cover. `.' :
~ ~ A preferred embodiment of the invention has been chosen '' "'1' ~.. . ~.
':, for purposes of illus~tration and description and is shown in the . :
accompanying drawings, forming a part of the specification, wherein~
' FIG. 1 is a perspective view of a package sealed by a '':; cloaure in accordance with the present invention. ,, '.
''~.; FIG. 2 is a vertical sectional view taken along line 2-2 .-,'::' ": 10 on FIG, 1~ , ,:::
;,~ FIG, 3 is a horizontal sectional view of the sealed package "~
,~: , , .'": taken along line 3-3 on FIG, 2~ ,,''.,;', ',',, FIG, 4 is a fragmentary vertical sectional vlew o~ another , ....................................................................... .
Ii,, embodiment oE the closure cap~ ., , '~'''' .~'' . FIG., 5 is a bottom plan view of the closure cap of FIG. 4~ ';i.. .' : .;, .
. F16S, 6, 7, and 8 are. Eragme~n,tary yerti~cal s,e.ctional yiew.s .~
.. : :
, D illustrating alternati.ve. embodi.me.nts of th.e. gaak.e:t' an,d plastic . . . .
ring structure~
Th.e preferred em~Qdiment will now ~e.'de.sc~ih.e.d~ with,p~ti,cul,a~ ..; ;
reference to FIGSt~l th~rough 3~ 3h~e~se f~gure,s; illus.trate ij~ clos,u~e' ,,~
c~ap 1 for sealing a glass or plastic or similar cQnta,ine.r 2 h.aying .,,`
a radially outwardly p~ojecting ~.e:ad 3 at th:e:'containe.r ~im~ The:' r~`
closure cap 1 in accordance wi:th.the pr:esent i,nyen:ti~on is appli.e.d ~' to and is placed ~n'sealLng e.ngagemen't with. th.e. contalnex 2 by b~e.ing ,~;
pressed down~ardly onto th.e 'cont~ine.r 2~ Th.e~reaftert th.e closure. ', ~.~ cap 1 is removed ~y be~ng prie.d oEf by the user usIng ~ p~y-o$f ,`,,., hook. `''.
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` ~ The pre~erred embodiment of the closure cap l com- -prises a circular plate metal^cover 4 contained in an outer plastic rin~ 5. The cover 4 preferably includes a depressed central stacking panel 6 and an outer, downwardly ~acing, gas~
; ket receiving channel 7. The channel 7 is de~ined by the slop- :
.~ ing wall 8 o~ the stacking panel 6 and a depending outer skirt or wall portion 9 on the cover 4. A preferred ~orm of a seal- .
:: lng gasket lO is a ~lowed-in plastisol sealing gasket positioned ~.
in the channel 7 between the channel walls 8 and 9. The gas- ;~
ket lO is po~itioned to form a hermetic seal with the upper :~ rounded rim portion ll o~ the container 2 in the manner ill-. ~ i .
ustrated in FIG. 2. The metal cover 4 includes an inner lac~
~ quer or other protective coating 12 which is inert with respect :.
to the products to be packaged in the container~ . :
I me plastic ring 5 i9 preferably molded as a unltary ; piece with its several elements belng shaped in the manner and '. for the purposes described below, The ring 5 is pre~erably .~, molded of a plastic which provides dimensional s~abilit~ to~
~, , i.,.
. gether with a smooth surface appearance and a high resistance l 20 to impact or other possib1y damaging treatment. Suitable plastics for this purpose include polystyrene, polyethylene, or similar impact res1stant resins.
A preferred shaping for the plastic ring 5 is illus~
< ~ trated in FIGS. l and 2. The ring 5 includes a depending skirt ;i portion 18 generally:parallel to the container axis which is connected by a corner portion 13 to an annular radially in~
wardly extending partial cover portion l4. The upper portion ~ of the skirt 18 together with the corner 13 and the co~er por~
;~ t~on 14 cooperate together with a container engaging bead 15 ;
.~ 30 to form an inwardly directed channel 17 for receiving and ~or ~;; i.:
engaglng the outer portion o~ the cover 4 including the skirt .~ or wall portion 9. The channel 17 has a width corresponding 'i ',~, :, -3 ' :
.. , , .,,'' ' ,'':'.'.' r- 1()37~2 :~`
-~ -- generally to the height of the skirt portion 9 on the cap cover 4 so ~hat the cover 4 mây be firmly mounted and retained ~ ., .:. . . .
; in the plastic ring 5 The skir~ 18 and the cover portion 14 of the plastic ring 5 are seen to be relatively thick to provide a form re~
. ..
taining ring. The cover portion 14 preferably extends inwardly ;~
to the outer end of the stacking panel wall 8 and slightly in-:..
- wardly of the container rim 11. ~`
: Thu9, when the cover 4 is snapped into position with ;
its outer skirt 9 engaged by the above described channel 17, a composite closure results which may be handled as a unit dur- ~;
; lng the closure cap shipping, feeding, and seallng operations ~
.,~ ., .
; typical for cap usage. FIG. 2, in particular, illustrates a preferred cross-sectional shape for the bead 15 which is pro-ll vided on a preferred embodiment of the closure cap. In cr~ss-J section, the bead 15 has a lower guide portion 19 forming an '~ : . .
acute angle with the vertical or the container axis for fac-~ ilitating the downward press-on application of the closure ''t,. caps 1 to the containers 2. The lower portion 19 o~ the bead 15 communicates with a container bead 3 engaging surface 20 which has only a slight angle with the horizontal or the plane -~of the container rim to assure a firm engagement with the in~
~,;, - ~
wardly slanted surface 21 ~of the container bead 3~
FIGS. 4 and 5 illustrate another form of a container -engaging ring 22 which is similar to the ring 5 except that the container engaging means on the ring 22 are lugs 23. As illustrated in FIG. 5, these lugs 23 occupy relatively long arcs on the circum~erence of the plastic ring 22, ~or example, a ma~or portion of a 90 degree arc. The spaced lugs 23 co-~` 30 operate to form a cap cover 24 retaining channel 25 to lock the cover 2~ in place in the ring 22.
FIG. 6 illustrates an alternate embodiment in the ., . ~ . ', ~- form of a closure cap 26 having an upwardly extending stacking and protective flange 27 formed as an integral portion of the ring 28 along with lugs 29 and cover portion 30 -- FIG. 7 illustratés an alternate embodiment where the closure cap 31 has a metal cover 32 with a flat t,op surface so ; that the cover 32 may receive a safety seal or other form o~ ;
r",' paper-board liner 33. The liner 33 illustrated in FIG. 7 com-; prises a relatively thick inner liner 34 having an air impervious` 8ealing membrane 35 lightly fastened to its lower surface. `
This ~orm of the closure cap is used to form a safety seal pack-age where the membrane 35 is adhered to and remains attached to the container rim when the closure cap is ~irst removed from `
'l the sealed package.
FIG. 8 illustrates a still further embodiment show-,' ing a paper-board liner 36 in the metal cover 37 where the plastlc rlng 38 ha~ container engaging lugs 39 and has an upwardly ex-`, tending stacking flange 40 of the general type described in con-nection with FIG. 6.
,` It will be seen that an improved composite pry-off closure cap has been described. The cap combines the advantages ~¦ f a metal cover capable of providing a reliable vacuum seal with the advantages of an easily formed plastic ring as incor-porated in the;container engaging portion of the cap. The com--blne~d composite closure is tamperproof and inexpensive to manu~
facture and is also attractive. The metal cover affords a means ~¦ ~ decorating the cap to provide trademarks or other indicia i ~ , ... .
by way of lithography or other sheet metal decorative methods.
i The cap also is of a form which may be adapted ~or use with ~` ;
both flowed-in cap liners or alternatively with pulp board liners ~ 30 including safety seal liners.
"i As various changes may be made in the ~orm, construct-~ ion and arrangement of the parts herein without departing from .`'~j , ~, '`'I ~.. ,~
. . .
~ ~7 ~ 1037~;~Z ' ~
-` the spirit and scope of the invention and without sacrificing `amy of its advantages, it is ~o be understood that all matter ; ~::
herein is to be interpreted as illustrative and not in a limit-ing sense.
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The invention re.lates. to an improved composite pry-off ... closure cap and more particularly to a pry~off cap which combines . the advantages of a metal cover capable of providing a vacuum seal ' w~th. an e.asily formed, attractiye, and e~fect~ve plastic ring for ~ re.~oyably attaching the cap to a container., There are a numb.er ,' ' of prior closure caps whi~ch. are retained on containers by spaced ,,~ lugs or ~eads and ~hich have a composite constructi.on~ The.se prior ., "" caps have.various drawbacks including relatively complex container ,, e.ngaging ring portions~ an qyerall unattractive. appearance? h.igh. cost ,., 10 or th.ey may haye lack.e:d th.e capacity for being attractively decorated , , with legen.da and qther lab.eIing matte.r, ,~....... Accordi,ng to the. pre.sent invention there is provided an . ~ .
':~ i,mproved composite closure. cap for aealing a container having a ~,' radi,ally outwardly pro~ecting cap enga8~ng bead at lts rim comprislng the. comb,ination of a molde.d pla~tIc ring having an annular cover , .. . .
~ porti.on and a, down,wardly dependent ski,rt 'both of said portions being ,`' . . .
:',, relati,ve.l'y re.ctangular in corss-sectian ? said coyer portion and said "'': aki,rt porti~Qn.be,ing coupled together by a corner portion ? inwardly ~, projecting.contai.ne,r e.ngagi,ng me.ans on the said skirt portion for !
~ 20 en.gagin.g .the.'conta~iner bea,d h.ayi,ng a generally hori,zontal container S.:,.i.~" bead'en:ga:g~ng porti~on at lt8 top a.nd a gui:de port~on th~reb:elow ,^
ormIng.an.:a~,cute a,ngle:w:i~th:.'the yertlcal? s:aid cQye.r portion? said ''' ~i,',~ corner' p~e ,i~Qn;~.~said s,k~rt portion and sa.~d cQntaine.r engagi~ng means, ,.,. ';
coope.~at~ng.. tQ.. ,fo~ an ~n~a~dly facing channel`, sa~d rectangular ~' k~ t po,~t~qn,.~o,~ing a~ gid pry~of~ means spaced frqm th.e.
cQnta~ner ~q'll, a ci~rcular ~etal cap.coyer pos,iti.~ne.d ~ithi.n said ~ pla~9ti~c ~ng(-~a'v~ng a oute.. ~ de~p~ending s~k.irt receive.d wlthin aaid ~ ' ,'',~, ch.~a,nnel' h.a,'y~ngt.~ts lq~e:r' edge. poaiti~ne,d' ahove said B~e.~d enga,ging ~' ~ p~t~Qn,~o~.'a~,a,id~container` e.nga~ging me.a'n6 and ha:ying an outer annular s-' 3Q t~p pQrt~on ~n e.n'gage~e.n't ~ith.the~'unde,rside of the cover portion ~,!,~ .
'j~ '`,; ` "
''`, ~ :: ' . . , ''",' ~ '''' ``.'''`
. .
of s,aid plastic ring? and a sealing gasket positioned in said cover .~
-., ;. .: ., ;, haying an annular container e.ngaging portion positioned adjacent ~ ., :: to th.e out.er edge of said cap cover. `.' :
~ ~ A preferred embodiment of the invention has been chosen '' "'1' ~.. . ~.
':, for purposes of illus~tration and description and is shown in the . :
accompanying drawings, forming a part of the specification, wherein~
' FIG. 1 is a perspective view of a package sealed by a '':; cloaure in accordance with the present invention. ,, '.
''~.; FIG. 2 is a vertical sectional view taken along line 2-2 .-,'::' ": 10 on FIG, 1~ , ,:::
;,~ FIG, 3 is a horizontal sectional view of the sealed package "~
,~: , , .'": taken along line 3-3 on FIG, 2~ ,,''.,;', ',',, FIG, 4 is a fragmentary vertical sectional vlew o~ another , ....................................................................... .
Ii,, embodiment oE the closure cap~ ., , '~'''' .~'' . FIG., 5 is a bottom plan view of the closure cap of FIG. 4~ ';i.. .' : .;, .
. F16S, 6, 7, and 8 are. Eragme~n,tary yerti~cal s,e.ctional yiew.s .~
.. : :
, D illustrating alternati.ve. embodi.me.nts of th.e. gaak.e:t' an,d plastic . . . .
ring structure~
Th.e preferred em~Qdiment will now ~e.'de.sc~ih.e.d~ with,p~ti,cul,a~ ..; ;
reference to FIGSt~l th~rough 3~ 3h~e~se f~gure,s; illus.trate ij~ clos,u~e' ,,~
c~ap 1 for sealing a glass or plastic or similar cQnta,ine.r 2 h.aying .,,`
a radially outwardly p~ojecting ~.e:ad 3 at th:e:'containe.r ~im~ The:' r~`
closure cap 1 in accordance wi:th.the pr:esent i,nyen:ti~on is appli.e.d ~' to and is placed ~n'sealLng e.ngagemen't with. th.e. contalnex 2 by b~e.ing ,~;
pressed down~ardly onto th.e 'cont~ine.r 2~ Th.e~reaftert th.e closure. ', ~.~ cap 1 is removed ~y be~ng prie.d oEf by the user usIng ~ p~y-o$f ,`,,., hook. `''.
','''';' ''. i,,,1''~''' ~ ' '.' ~
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7~
` ~ The pre~erred embodiment of the closure cap l com- -prises a circular plate metal^cover 4 contained in an outer plastic rin~ 5. The cover 4 preferably includes a depressed central stacking panel 6 and an outer, downwardly ~acing, gas~
; ket receiving channel 7. The channel 7 is de~ined by the slop- :
.~ ing wall 8 o~ the stacking panel 6 and a depending outer skirt or wall portion 9 on the cover 4. A preferred ~orm of a seal- .
:: lng gasket lO is a ~lowed-in plastisol sealing gasket positioned ~.
in the channel 7 between the channel walls 8 and 9. The gas- ;~
ket lO is po~itioned to form a hermetic seal with the upper :~ rounded rim portion ll o~ the container 2 in the manner ill-. ~ i .
ustrated in FIG. 2. The metal cover 4 includes an inner lac~
~ quer or other protective coating 12 which is inert with respect :.
to the products to be packaged in the container~ . :
I me plastic ring 5 i9 preferably molded as a unltary ; piece with its several elements belng shaped in the manner and '. for the purposes described below, The ring 5 is pre~erably .~, molded of a plastic which provides dimensional s~abilit~ to~
~, , i.,.
. gether with a smooth surface appearance and a high resistance l 20 to impact or other possib1y damaging treatment. Suitable plastics for this purpose include polystyrene, polyethylene, or similar impact res1stant resins.
A preferred shaping for the plastic ring 5 is illus~
< ~ trated in FIGS. l and 2. The ring 5 includes a depending skirt ;i portion 18 generally:parallel to the container axis which is connected by a corner portion 13 to an annular radially in~
wardly extending partial cover portion l4. The upper portion ~ of the skirt 18 together with the corner 13 and the co~er por~
;~ t~on 14 cooperate together with a container engaging bead 15 ;
.~ 30 to form an inwardly directed channel 17 for receiving and ~or ~;; i.:
engaglng the outer portion o~ the cover 4 including the skirt .~ or wall portion 9. The channel 17 has a width corresponding 'i ',~, :, -3 ' :
.. , , .,,'' ' ,'':'.'.' r- 1()37~2 :~`
-~ -- generally to the height of the skirt portion 9 on the cap cover 4 so ~hat the cover 4 mây be firmly mounted and retained ~ ., .:. . . .
; in the plastic ring 5 The skir~ 18 and the cover portion 14 of the plastic ring 5 are seen to be relatively thick to provide a form re~
. ..
taining ring. The cover portion 14 preferably extends inwardly ;~
to the outer end of the stacking panel wall 8 and slightly in-:..
- wardly of the container rim 11. ~`
: Thu9, when the cover 4 is snapped into position with ;
its outer skirt 9 engaged by the above described channel 17, a composite closure results which may be handled as a unit dur- ~;
; lng the closure cap shipping, feeding, and seallng operations ~
.,~ ., .
; typical for cap usage. FIG. 2, in particular, illustrates a preferred cross-sectional shape for the bead 15 which is pro-ll vided on a preferred embodiment of the closure cap. In cr~ss-J section, the bead 15 has a lower guide portion 19 forming an '~ : . .
acute angle with the vertical or the container axis for fac-~ ilitating the downward press-on application of the closure ''t,. caps 1 to the containers 2. The lower portion 19 o~ the bead 15 communicates with a container bead 3 engaging surface 20 which has only a slight angle with the horizontal or the plane -~of the container rim to assure a firm engagement with the in~
~,;, - ~
wardly slanted surface 21 ~of the container bead 3~
FIGS. 4 and 5 illustrate another form of a container -engaging ring 22 which is similar to the ring 5 except that the container engaging means on the ring 22 are lugs 23. As illustrated in FIG. 5, these lugs 23 occupy relatively long arcs on the circum~erence of the plastic ring 22, ~or example, a ma~or portion of a 90 degree arc. The spaced lugs 23 co-~` 30 operate to form a cap cover 24 retaining channel 25 to lock the cover 2~ in place in the ring 22.
FIG. 6 illustrates an alternate embodiment in the ., . ~ . ', ~- form of a closure cap 26 having an upwardly extending stacking and protective flange 27 formed as an integral portion of the ring 28 along with lugs 29 and cover portion 30 -- FIG. 7 illustratés an alternate embodiment where the closure cap 31 has a metal cover 32 with a flat t,op surface so ; that the cover 32 may receive a safety seal or other form o~ ;
r",' paper-board liner 33. The liner 33 illustrated in FIG. 7 com-; prises a relatively thick inner liner 34 having an air impervious` 8ealing membrane 35 lightly fastened to its lower surface. `
This ~orm of the closure cap is used to form a safety seal pack-age where the membrane 35 is adhered to and remains attached to the container rim when the closure cap is ~irst removed from `
'l the sealed package.
FIG. 8 illustrates a still further embodiment show-,' ing a paper-board liner 36 in the metal cover 37 where the plastlc rlng 38 ha~ container engaging lugs 39 and has an upwardly ex-`, tending stacking flange 40 of the general type described in con-nection with FIG. 6.
,` It will be seen that an improved composite pry-off closure cap has been described. The cap combines the advantages ~¦ f a metal cover capable of providing a reliable vacuum seal with the advantages of an easily formed plastic ring as incor-porated in the;container engaging portion of the cap. The com--blne~d composite closure is tamperproof and inexpensive to manu~
facture and is also attractive. The metal cover affords a means ~¦ ~ decorating the cap to provide trademarks or other indicia i ~ , ... .
by way of lithography or other sheet metal decorative methods.
i The cap also is of a form which may be adapted ~or use with ~` ;
both flowed-in cap liners or alternatively with pulp board liners ~ 30 including safety seal liners.
"i As various changes may be made in the ~orm, construct-~ ion and arrangement of the parts herein without departing from .`'~j , ~, '`'I ~.. ,~
. . .
~ ~7 ~ 1037~;~Z ' ~
-` the spirit and scope of the invention and without sacrificing `amy of its advantages, it is ~o be understood that all matter ; ~::
herein is to be interpreted as illustrative and not in a limit-ing sense.
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Claims (6)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An improved composite closure cap for sealing a container having a radially outwardly projecting cap engaging bead at its rim comprising the combination of:
a molded plastic ring having an annular cover portion and a downwardly dependent skirt both of said portions being relatively rectangular in cross-section;
said cover portion and said skirt portion being coupled together by a corner portion;
inwardly projecting container engaging means on the said skirt portion for engaging the container bead having a generally horizontal container bead engaging portion at its top and a guide portion therebelow forming an acute angle with the vertical;
said cover portion, said corner portion, said skirt portion and said container engaging means cooperating to form an inwardly facing channel;
said rectangular skirt portion forming a rigid pry-off means spaced from the container wall;
a circular metal cap cover positioned within said plastic ring having a outer depending skirt received within said channel having its lower edge positioned above said bead engaging portion of said container engaging means and having an outer annular top portion in engagement with the underside of the cover portion of said plastic ring; and a sealing gasket positioned in said cover having an annular container engaging portion positioned adjacent to the outer edge of said cap cover.
a molded plastic ring having an annular cover portion and a downwardly dependent skirt both of said portions being relatively rectangular in cross-section;
said cover portion and said skirt portion being coupled together by a corner portion;
inwardly projecting container engaging means on the said skirt portion for engaging the container bead having a generally horizontal container bead engaging portion at its top and a guide portion therebelow forming an acute angle with the vertical;
said cover portion, said corner portion, said skirt portion and said container engaging means cooperating to form an inwardly facing channel;
said rectangular skirt portion forming a rigid pry-off means spaced from the container wall;
a circular metal cap cover positioned within said plastic ring having a outer depending skirt received within said channel having its lower edge positioned above said bead engaging portion of said container engaging means and having an outer annular top portion in engagement with the underside of the cover portion of said plastic ring; and a sealing gasket positioned in said cover having an annular container engaging portion positioned adjacent to the outer edge of said cap cover.
2. A composite closure cap as claimed in claim 1 in which said corner portion includes an upwardly extending cir-cular stacking flange having a generally rectangular cross-section.
3. A composite closure cap as claimed in claim 1 in which said sealing gasket comprises a cut liner.
4. A composite closure cap as claimed in claim 1 in which said sealing gasket comprises a cut liner with a safety seal membrane positioned on the under surface of said liner.
5. A composite closure cap as claimed in claim 1 in which said container engaging means comprises a circular bead.
6. A composite closure cap as claimed in claim 1 in which said container engaging means comprises a plurality of arcuate lug members.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39496773A | 1973-09-07 | 1973-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1037422A true CA1037422A (en) | 1978-08-29 |
Family
ID=23561123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA206,701A Expired CA1037422A (en) | 1973-09-07 | 1974-08-09 | Pry-off closure cap |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS5824351B2 (en) |
| BE (1) | BE819519A (en) |
| BR (1) | BR7407259D0 (en) |
| CA (1) | CA1037422A (en) |
| DE (1) | DE2442342A1 (en) |
| ES (1) | ES224222Y (en) |
| FR (1) | FR2243124B1 (en) |
| GB (1) | GB1477902A (en) |
| IT (1) | IT1019195B (en) |
| LU (1) | LU70875A1 (en) |
| NL (1) | NL7411727A (en) |
| SE (1) | SE7411275L (en) |
| ZA (1) | ZA745174B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60174659A (en) * | 1984-02-22 | 1985-09-07 | Hitachi Ltd | Printing mechanism |
| JPH078200Y2 (en) * | 1987-11-24 | 1995-03-01 | 沖電気工業株式会社 | Wire dot print head |
| WO1996041751A1 (en) * | 1995-06-09 | 1996-12-27 | Carnaudmetalbox Plc | Closure |
| GB9722898D0 (en) | 1997-10-30 | 1998-01-07 | Metal Box Plc | Vacuum closures |
| JP2005187032A (en) * | 2003-12-26 | 2005-07-14 | Suntory Ltd | Spout sealing structure of barrel-shaped container |
| KR101319191B1 (en) * | 2012-07-19 | 2013-10-18 | 이영원 | Cover of an airtight cintainer using detachmnt of a packing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3656648A (en) * | 1970-04-24 | 1972-04-18 | Continental Can Co | Composite closure |
| US3690499A (en) * | 1971-07-29 | 1972-09-12 | Continental Can Co | Composite closure |
-
1974
- 1974-08-09 CA CA206,701A patent/CA1037422A/en not_active Expired
- 1974-08-13 ZA ZA00745174A patent/ZA745174B/en unknown
- 1974-08-29 GB GB3780474A patent/GB1477902A/en not_active Expired
- 1974-08-30 BR BR7259/74A patent/BR7407259D0/en unknown
- 1974-09-04 FR FR7430104A patent/FR2243124B1/fr not_active Expired
- 1974-09-04 NL NL7411727A patent/NL7411727A/en active Search and Examination
- 1974-09-04 BE BE148184A patent/BE819519A/en not_active IP Right Cessation
- 1974-09-04 DE DE2442342A patent/DE2442342A1/en not_active Ceased
- 1974-09-05 IT IT52887/74A patent/IT1019195B/en active
- 1974-09-06 JP JP49102165A patent/JPS5824351B2/en not_active Expired
- 1974-09-06 SE SE7411275A patent/SE7411275L/ not_active Application Discontinuation
- 1974-09-06 LU LU70875A patent/LU70875A1/xx unknown
- 1974-09-07 ES ES1974224222U patent/ES224222Y/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT1019195B (en) | 1977-11-10 |
| ES224222U (en) | 1977-01-16 |
| JPS5054488A (en) | 1975-05-14 |
| FR2243124A1 (en) | 1975-04-04 |
| NL7411727A (en) | 1975-03-11 |
| FR2243124B1 (en) | 1979-09-28 |
| ZA745174B (en) | 1975-08-27 |
| BR7407259D0 (en) | 1975-07-08 |
| SE7411275L (en) | 1975-03-10 |
| AU7247774A (en) | 1976-02-19 |
| LU70875A1 (en) | 1975-01-02 |
| GB1477902A (en) | 1977-06-29 |
| JPS5824351B2 (en) | 1983-05-20 |
| ES224222Y (en) | 1977-05-16 |
| BE819519A (en) | 1974-12-31 |
| DE2442342A1 (en) | 1975-03-13 |
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