CA1204080A - Aerosol container closure - Google Patents
Aerosol container closureInfo
- Publication number
- CA1204080A CA1204080A CA000411683A CA411683A CA1204080A CA 1204080 A CA1204080 A CA 1204080A CA 000411683 A CA000411683 A CA 000411683A CA 411683 A CA411683 A CA 411683A CA 1204080 A CA1204080 A CA 1204080A
- Authority
- CA
- Canada
- Prior art keywords
- mounting cup
- gasket
- plunger
- band
- sleeve
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
- B21D51/44—Making closures, e.g. caps
- B21D51/46—Placing sealings or sealing material
Abstract
ABSTRACT OF THE DISCLOSURE
Apparatus and method for applying gasket material to the skirt of a gasket for the mounting cup of an aerosol container, wherein the gasket material is mechanically applied to the mounting cup through the use of a novel mandrel and cutting arrangement. A
mounting cup, having a uniquely placed gasket, said gasket extending from the skirt into the channel of the mounting cup.
Apparatus and method for applying gasket material to the skirt of a gasket for the mounting cup of an aerosol container, wherein the gasket material is mechanically applied to the mounting cup through the use of a novel mandrel and cutting arrangement. A
mounting cup, having a uniquely placed gasket, said gasket extending from the skirt into the channel of the mounting cup.
Description
~MP~OVED AEROSOL CONTAINER CLOSURE
ACKGROUND
Aerosol dispensing containers have found widespread use in ~he p2ckaging of fluid ma~erials including a variety of hoth li~uid and powdered particulate products. Such containers are provided with a valve-controlled discharge orifice and ope~ate by the action o~ a volatile propellant which is confaned within the container ~oge~her with the product to be dispensed. Besause the propellant has an appreciable vapor pressure at room temperatuare, the product in the ~losed container ~ m~intained under ~per-atmospheric pressure.
A typical aerosol unit comprises a hollow cylindrical container which $6 tight~y closed at one end and is provided with an vpening at i~s opposite end for receiving a dispensing valve 3ssembly. A closure, commonly referred to ~s a mounting cup, 6erves as the closure for the container ~nd as a 6up~0rt for the valve assembly.
~ Typ~cally, the mount~ng cup c~mprises a panel having ~n ~perture for receiv~ng the valve a~sem~ly, a 6kirt depending from the periphety of the panel9 and an annular channel extending ., .. . . ~ ... . ... . . . . . .
~ ~%~
outwardly from the edge of ~he Gkir~. When the ~aount~ng cup i~ pl~ced in ~ealing posi~on on the container, he ehannel i~ posi1:10ned over the bead ~urround~ng the ~ontain*~ openi~g and the lower por~ion of ~he ~kir~ adja~er3t ~o the ehannel ~s flared outwardly ~gain~t the container wall ~djacent 3:he bead. To ~nsure ~dequa~ce ~ealing between the ~losure and ~he ~on~ainer, ~t~e cup i~
provided with ~ gasket which m~y reside in the annular c~aanne:L or predomislan~cly $n the ehannel of the cupO
~eretoore ~ mountin~ cup gasket ~eal have been ~ormed by di~po~ing a previously cu~ gasket in the channelO Thls ~ype of gasket has the disadvantage of not being ~tatlonary srelative to the mountang cup during propell~nt filling or other valve unit ~ssembly operations with the undesirable consequence that when the mounting cup and container are clinched to effect the seal~ the gasket ls often di~posed at an angled po~ition, and thus, the clinching operation is less effe~tive, ~nother ~omme~cial method for forming the gasket onto ~he ~ounting cup consists in for~ing the g~skets,in situ from liquid g~ske~f~rmlng composltions ~ompr~s~ng an el~stomer dispersed or dissolved in a volatile organ~c li~uid vehicle~ In the manufacture o~ ~uch a gasket, the li~uid composition ~ deposited in the desired ~configuration ~n the channel of the cup while the cup is rotated beneath a ~e~ering nozzle through wh~ch tbQ composition flows~ The depos~t is ~hen converted into a dry 601~d sealin~ ma~s by expelllng the liquld veh~cle at elevated tempeeatures. Though this techn~q~e of flowing gaskets into place has re~elved wid2 commercial acceptance, it 6uffees from the dasadvantages o ~ ~;
. ~.
~3-requiring an elaborate drying operation, wherein the ~ounting cup must be h~nd1ed careully BO as to avoid undue upset rom ~he horizontal; costly recovery ~pparatus for the expelled organic liquid ~lso must be provided. In ~um/ the ~lowed gasket i5 an expensive ~tep in the formation of the mounting cup. See U.S~ Pat. No. 3~3~2,381 ~s an example of the Uflowed~ gasket.
Other techniques for di6posing a gasket ~nto the ~ounting cup are described in ~.S. Pat. No.
3,417,177,wherein the gasket seal is made of heat ~hrinkable material. Af~er placing a band of gasket material on the ~kirt~ the gasket having a greater diameter ~han the outside diameter of the ~kirt of the mounting cup, ~he cup is heated at a tempera~ure and for ~ time 6ufficient ~o ~hrink the band into tight frictional engagement with the skirt~
Another ~imilar teehniq~e is that disclosed in U.S. Pat, No. 3~443,006~ wherein a band of gasket material is s~elled ~hrough the use of a suitahle ~welling agent so as to increase its diameter to fit over the skirt of the mounting cup.
Subsequently, the ~welling agent is removed from the gasket material ~o that the band will come into tight rictional engagement with the skirt.
~oth the heat shrink and swel1ing techniques for applying a gasket material to the mounting ~up have the disadvantage of bein3 costly and relatively time c~nsuming procedu~es~ Note in U.S O
3~417~17~ coluffln 4, line~ 27-31, that the positioned bands must be heated to ~40F ~or about
ACKGROUND
Aerosol dispensing containers have found widespread use in ~he p2ckaging of fluid ma~erials including a variety of hoth li~uid and powdered particulate products. Such containers are provided with a valve-controlled discharge orifice and ope~ate by the action o~ a volatile propellant which is confaned within the container ~oge~her with the product to be dispensed. Besause the propellant has an appreciable vapor pressure at room temperatuare, the product in the ~losed container ~ m~intained under ~per-atmospheric pressure.
A typical aerosol unit comprises a hollow cylindrical container which $6 tight~y closed at one end and is provided with an vpening at i~s opposite end for receiving a dispensing valve 3ssembly. A closure, commonly referred to ~s a mounting cup, 6erves as the closure for the container ~nd as a 6up~0rt for the valve assembly.
~ Typ~cally, the mount~ng cup c~mprises a panel having ~n ~perture for receiv~ng the valve a~sem~ly, a 6kirt depending from the periphety of the panel9 and an annular channel extending ., .. . . ~ ... . ... . . . . . .
~ ~%~
outwardly from the edge of ~he Gkir~. When the ~aount~ng cup i~ pl~ced in ~ealing posi~on on the container, he ehannel i~ posi1:10ned over the bead ~urround~ng the ~ontain*~ openi~g and the lower por~ion of ~he ~kir~ adja~er3t ~o the ehannel ~s flared outwardly ~gain~t the container wall ~djacent 3:he bead. To ~nsure ~dequa~ce ~ealing between the ~losure and ~he ~on~ainer, ~t~e cup i~
provided with ~ gasket which m~y reside in the annular c~aanne:L or predomislan~cly $n the ehannel of the cupO
~eretoore ~ mountin~ cup gasket ~eal have been ~ormed by di~po~ing a previously cu~ gasket in the channelO Thls ~ype of gasket has the disadvantage of not being ~tatlonary srelative to the mountang cup during propell~nt filling or other valve unit ~ssembly operations with the undesirable consequence that when the mounting cup and container are clinched to effect the seal~ the gasket ls often di~posed at an angled po~ition, and thus, the clinching operation is less effe~tive, ~nother ~omme~cial method for forming the gasket onto ~he ~ounting cup consists in for~ing the g~skets,in situ from liquid g~ske~f~rmlng composltions ~ompr~s~ng an el~stomer dispersed or dissolved in a volatile organ~c li~uid vehicle~ In the manufacture o~ ~uch a gasket, the li~uid composition ~ deposited in the desired ~configuration ~n the channel of the cup while the cup is rotated beneath a ~e~ering nozzle through wh~ch tbQ composition flows~ The depos~t is ~hen converted into a dry 601~d sealin~ ma~s by expelllng the liquld veh~cle at elevated tempeeatures. Though this techn~q~e of flowing gaskets into place has re~elved wid2 commercial acceptance, it 6uffees from the dasadvantages o ~ ~;
. ~.
~3-requiring an elaborate drying operation, wherein the ~ounting cup must be h~nd1ed careully BO as to avoid undue upset rom ~he horizontal; costly recovery ~pparatus for the expelled organic liquid ~lso must be provided. In ~um/ the ~lowed gasket i5 an expensive ~tep in the formation of the mounting cup. See U.S~ Pat. No. 3~3~2,381 ~s an example of the Uflowed~ gasket.
Other techniques for di6posing a gasket ~nto the ~ounting cup are described in ~.S. Pat. No.
3,417,177,wherein the gasket seal is made of heat ~hrinkable material. Af~er placing a band of gasket material on the ~kirt~ the gasket having a greater diameter ~han the outside diameter of the ~kirt of the mounting cup, ~he cup is heated at a tempera~ure and for ~ time 6ufficient ~o ~hrink the band into tight frictional engagement with the skirt~
Another ~imilar teehniq~e is that disclosed in U.S. Pat, No. 3~443,006~ wherein a band of gasket material is s~elled ~hrough the use of a suitahle ~welling agent so as to increase its diameter to fit over the skirt of the mounting cup.
Subsequently, the ~welling agent is removed from the gasket material ~o that the band will come into tight rictional engagement with the skirt.
~oth the heat shrink and swel1ing techniques for applying a gasket material to the mounting ~up have the disadvantage of bein3 costly and relatively time c~nsuming procedu~es~ Note in U.S O
3~417~17~ coluffln 4, line~ 27-31, that the positioned bands must be heated to ~40F ~or about
2-~ minutes ~n order to obtain ~ tight friction fit. In the procedure of 3~443~006, the bands must ~tand in the ~welling 1iquid for a period of 1/2 to .... ... . ... . . .. . . ... .. .... .... . .. . . . . ... .. . . . . . . ... .. . ...... ... . ...... ...
8~
1-1/2 minutes according to example 2 of the '006 patent and then allowed to stand for the drying period. Also, in any mass production utilizing the '006 system, an oryanic liquid recovery system must be employedO
In Canadian Patent Application Serial No. 369,740 filed January 30, 1981 in the name of R. H. Abplanalp, et al, is described a novel gasketed mountinq cup system t including novel method and apparatus, wherein the gasket material is disposed on the mounting cup in the preferred position for effecting a seal between the mounting cup and the head of the container; and further wherein ~he dis-advantages associated with the aforementioned techniques of applying the gasket material to the cup are obviated.
Also, an apparatus and method i5 provided wherein gaskets are applied to aerosol mounting cups in an exceptionally rapid and efficient manner to form gasketed-mounting cups having excellent sealing characteristics.
In general, the method of the invention of the afore-said Canadian ApplicatiGn ~erial NQ. 369~740 comprises passin~ a tubular sleeve of gasket material onto a compressible mandrel; initially positioning and aligning the skirt of the mounting cup and the contiguous end of the mandrel such that the sleeve of gasket material may pass onto the slcirt, said mandrel having fixed and ~5 moveable portions with respect to each other and to their movement toward and away from the mounting cup; urging the moveable portion of the gasket material bearing mandrel toward the mounting cup such that the gasket material passes onto the skirt of the cup; causing the moveable portion of the mandrel to retract to its initial position, cutting the sleeve at a point between the mounting cup and the mandrel to leave a band of gasket material; and - ..
subsequently, advancinq the mounting cup to a station whereat the band of the gasket material is urged further onto the skirt of the mounting cup, whereby ~he band of gasket material does not extend beyond the skirt o~ the mounting cup. At this stage, the gasketed-mounting cup may be further processed.
For cer~ain applications of the gaske~ed mounting cups of aforesaid Canadian Application Serial No. 369,740, namely, utili~ing said mounting cups in so~called "under the cup" propellant filling of the container, it was observed that on limited occasions the gasket band was removed from the mounting cup during the filling operation~
Moreover, observation revealed a tendency in an untoward number of gasketed mounting CUp5 for the hand of gasket material to recede from its position in the channel or curl portion of the mounting cup before crimping the mounting cup to the container. Both of these disadvan~ages reduce productivity on a mass production basis.
The subject invention is an improvement in the method and apparatus utilized in ~he aforesaid Canadian Application Serial No. 369,740 and the cup produced thereby.
In general, the product of the subject invention comprises disposing one or more compressive deformations in the band of gasket material.
In accordance with one aspect of the invention there is provided an apparatus for the mass production of a ~5 gasket-bearing aerosol mounting cup having a panel, a skirt depending from the periphery of the panel and an annular channel extending outwardly from the skir~
comprising (a) means for disposing a band of gasket material onto the skirt of the mounting cup such that the end of the band distal from the channel of the mounting cup extends beyond the panel of the mounting cup, (b) primary plunger means for advancing the band of gasket material onto the skirt of the mounting cup such that the aforesaid distal end of the band is positioned at or below the periphery of the panel of the mounting cup, (cl means for heating the band of gasket material, subsequent to the use of the primary plunger means, (d) secondary plunger means having a retractable sleeve portion for advancing the heated band of gasket material to its ul~imate position on the skirt and within the channel of the mounting cup, and for imparting a compressive deformation to the band of the gasket materialO
In accordance with another aspect of the invention there is provided the rnethod for the mass production of a gasket-bearing aerosol mounting cup having panel, skirt and channel portions oomprising ~a) forming a band of gasket material on the skirt of ~he mounting cup which extends ahove the panel of said cup, (b) initially advancing the band of gasket material onto the skirt of the mounting cup at a primary advancing s~ation such that edge of the yasket material distal from the channel of the mounting cup is positioned at or below the periphery o~
the panel of the mounting cup, (c) heating the band of gasket material and (d) advancing the band of gaske~
material to its ultimate position on the mounting cup and simultaneously imparting a Gompressive deformation to the gasket material~
The present invention will be more clearly unders~ood by referring to the drawings herein and the discussion relating thereto.
In the drawings:
Figure 1 shows in section view a gaslceted aerosol mounting cup prepared according to the method and apparatus of the invention of Serial No. 369,7400 Figures 2 A-F is a schematic of one embodiment o the invention of aforesaid Canadian Application Serial No.
369,740 showing the several steps utili2ed in positioning the gasket material onto an aerosol mounting cupO
Figure 3 is a perspective view of the apparatus of the embodiment of Figure 2, together with the apparatus used în a second operation novel to this invention, on the product of the embodimen~ of Figure 2.
- 7 ~
Figure 4 is a sec~ional view of the apparatus of the embodiment of Figure 3, along the line 4-4 of Figure 3~
Figure 5 is a partial section of the apparatus used in the second operation of the product, of the embodiment of Figure 2, along tlle line 5-5 of Figure 3.
Figure 6 is a timing diagram through a single cycle for producing the mounting cup according to the embodim2nt of Figure 2.
Figure 7 is a perspective view of a second embodiment of the invention.
Figures 8 and 9 are views of the apparatus of the embodiment of Figure 7, showing the positioning of the apparatus in an initial and advanced position, respectively, relative to the mounting cup.
Figure 10 is a partial sectional view of the apparatus used in the operation to advance the band of gasket material to its ultimate position on the mounting cup according to the subject invention, said apparatus being shown in non-advanced mode relative to the mounting cupO
Figure 11 is the apparatus of Figure 10 in the advanced mode relative to the mounting cup.
Figure 12 is an enlargement of the circled portion of Figure 11.
Figure 13 is a perspective view of the gasketed mounting cup of this invention.
Figure 14 is a schematic showing the several operations or stations in the preferred mode for the manufacture of the gasketed mounting cup of this invention.
Figure 15 is a partial sectional view of the preferred apparatus used in the operation to advance the band of gasket material onto the mounting cup such that the end of the gasket material resides on the straight portion of the skirt of the mounting cup.
Figure 16 is a perspective view of one of the flexible fingers of the apparatus of Figure 15~
- 7a -Figures 17 and 18 are a plan view along the lines 17-17 and 18-18 of Figure 15.
Figure 19 is a plan view along the line 19-19 of Figure 15.
Figure 20 is a partial sectional view of the preferred apparatus used in the operation to advance the gasket material to its ultimate position on the mounting cup, Figure 21 is an enlarged, partial sectional view of the plunger sleeve of Figure 20 mounting cup and gasket material in the fully advanced position of said plunger sleeve.
Figure 22 is a plan view of the top surface of a member of the centering mechanism.
Figure 1 is a sectional view of a gasketed-mounting cup shown in inverted position relative to its placemen~
in the assembled container and produ~ed according to the gener~l method of aforesaid Canadian Application Serial No. 369,740. The mounting cup~ generally designated as lOr comprises a circular panel 12 having an integral skir~
14 depending from its periphery. The free edge of skirt 14 is ~8--olltwardly 1anged ~t 16 to orm an annular channel 18 or embr~ciny the bead ~urrounding the ~ontainer opening ~not ~hown), when the cup i~ pos~ioned ~hereon~ ~he ~nner po~tiorl of panel 12 ~
countersunk to form ~ ~ubular rim, generally designated as 2Q, which ha~ a dependent ~rcular wall 22 integrally joined with un ~per~ured hori20ntal wall 24. ~hen the cup is pl~ced in ~ealing positlorl, the ram 20 e.ct~ els a pedestal for the valve unik and the ~7al~e stem is admitted lnto the cont~ine~ throuyh aper~ured wall 24~ The gasket 26 is disposed ~n the ~xter~or ~ur:Eace of the 6kirt 14 ~nd ex'cends beyorld ~he ~un~cure of the ~kirt and channel ~nd a distarlce into s2lid channel.
'15 In Figure 2 A~l~, c~rresponding part~ ~n each figure are as numbered snd described ln Figure 2 A, ~aid igures ~howing a lichematic of the relative positioning of the moving component~ of the apparatus at each ~tage of 'she cycle ~n ~dvancing a plastic g~sket material onto ~ mounting cup ~nd ~ui:ting the tube to ultima~cely provide a b~nd o gasket material di~posed on 'che 6kirt o~ the snounting cup~
In Figure 2 A, a sleeve of gasket materîal 30 ~5 is di posed over the len~th o the ~nandrel, generally desIgnated æs 32. Moun'cing ~up 34 ~s se~urely positioned within ~ seat 36, which as mounted on a 6uitable b~se p in a manner known ~o those 6killed in the a~rtO ;Positioning pin 38 extends thro~lgh the central ~perture in the pedestal o the mounting cup 34 and provides a fiated ~pacing between the bo'ctom ~urf~ce 40 of the ~aand~el 32 ~nd t~e mounting cup 34., Man/31rel 32 has ~r~ upper portion 42 ~nd a lower portion 44 wl~ich
8~
1-1/2 minutes according to example 2 of the '006 patent and then allowed to stand for the drying period. Also, in any mass production utilizing the '006 system, an oryanic liquid recovery system must be employedO
In Canadian Patent Application Serial No. 369,740 filed January 30, 1981 in the name of R. H. Abplanalp, et al, is described a novel gasketed mountinq cup system t including novel method and apparatus, wherein the gasket material is disposed on the mounting cup in the preferred position for effecting a seal between the mounting cup and the head of the container; and further wherein ~he dis-advantages associated with the aforementioned techniques of applying the gasket material to the cup are obviated.
Also, an apparatus and method i5 provided wherein gaskets are applied to aerosol mounting cups in an exceptionally rapid and efficient manner to form gasketed-mounting cups having excellent sealing characteristics.
In general, the method of the invention of the afore-said Canadian ApplicatiGn ~erial NQ. 369~740 comprises passin~ a tubular sleeve of gasket material onto a compressible mandrel; initially positioning and aligning the skirt of the mounting cup and the contiguous end of the mandrel such that the sleeve of gasket material may pass onto the slcirt, said mandrel having fixed and ~5 moveable portions with respect to each other and to their movement toward and away from the mounting cup; urging the moveable portion of the gasket material bearing mandrel toward the mounting cup such that the gasket material passes onto the skirt of the cup; causing the moveable portion of the mandrel to retract to its initial position, cutting the sleeve at a point between the mounting cup and the mandrel to leave a band of gasket material; and - ..
subsequently, advancinq the mounting cup to a station whereat the band of the gasket material is urged further onto the skirt of the mounting cup, whereby ~he band of gasket material does not extend beyond the skirt o~ the mounting cup. At this stage, the gasketed-mounting cup may be further processed.
For cer~ain applications of the gaske~ed mounting cups of aforesaid Canadian Application Serial No. 369,740, namely, utili~ing said mounting cups in so~called "under the cup" propellant filling of the container, it was observed that on limited occasions the gasket band was removed from the mounting cup during the filling operation~
Moreover, observation revealed a tendency in an untoward number of gasketed mounting CUp5 for the hand of gasket material to recede from its position in the channel or curl portion of the mounting cup before crimping the mounting cup to the container. Both of these disadvan~ages reduce productivity on a mass production basis.
The subject invention is an improvement in the method and apparatus utilized in ~he aforesaid Canadian Application Serial No. 369,740 and the cup produced thereby.
In general, the product of the subject invention comprises disposing one or more compressive deformations in the band of gasket material.
In accordance with one aspect of the invention there is provided an apparatus for the mass production of a ~5 gasket-bearing aerosol mounting cup having a panel, a skirt depending from the periphery of the panel and an annular channel extending outwardly from the skir~
comprising (a) means for disposing a band of gasket material onto the skirt of the mounting cup such that the end of the band distal from the channel of the mounting cup extends beyond the panel of the mounting cup, (b) primary plunger means for advancing the band of gasket material onto the skirt of the mounting cup such that the aforesaid distal end of the band is positioned at or below the periphery of the panel of the mounting cup, (cl means for heating the band of gasket material, subsequent to the use of the primary plunger means, (d) secondary plunger means having a retractable sleeve portion for advancing the heated band of gasket material to its ul~imate position on the skirt and within the channel of the mounting cup, and for imparting a compressive deformation to the band of the gasket materialO
In accordance with another aspect of the invention there is provided the rnethod for the mass production of a gasket-bearing aerosol mounting cup having panel, skirt and channel portions oomprising ~a) forming a band of gasket material on the skirt of ~he mounting cup which extends ahove the panel of said cup, (b) initially advancing the band of gasket material onto the skirt of the mounting cup at a primary advancing s~ation such that edge of the yasket material distal from the channel of the mounting cup is positioned at or below the periphery o~
the panel of the mounting cup, (c) heating the band of gasket material and (d) advancing the band of gaske~
material to its ultimate position on the mounting cup and simultaneously imparting a Gompressive deformation to the gasket material~
The present invention will be more clearly unders~ood by referring to the drawings herein and the discussion relating thereto.
In the drawings:
Figure 1 shows in section view a gaslceted aerosol mounting cup prepared according to the method and apparatus of the invention of Serial No. 369,7400 Figures 2 A-F is a schematic of one embodiment o the invention of aforesaid Canadian Application Serial No.
369,740 showing the several steps utili2ed in positioning the gasket material onto an aerosol mounting cupO
Figure 3 is a perspective view of the apparatus of the embodiment of Figure 2, together with the apparatus used în a second operation novel to this invention, on the product of the embodimen~ of Figure 2.
- 7 ~
Figure 4 is a sec~ional view of the apparatus of the embodiment of Figure 3, along the line 4-4 of Figure 3~
Figure 5 is a partial section of the apparatus used in the second operation of the product, of the embodiment of Figure 2, along tlle line 5-5 of Figure 3.
Figure 6 is a timing diagram through a single cycle for producing the mounting cup according to the embodim2nt of Figure 2.
Figure 7 is a perspective view of a second embodiment of the invention.
Figures 8 and 9 are views of the apparatus of the embodiment of Figure 7, showing the positioning of the apparatus in an initial and advanced position, respectively, relative to the mounting cup.
Figure 10 is a partial sectional view of the apparatus used in the operation to advance the band of gasket material to its ultimate position on the mounting cup according to the subject invention, said apparatus being shown in non-advanced mode relative to the mounting cupO
Figure 11 is the apparatus of Figure 10 in the advanced mode relative to the mounting cup.
Figure 12 is an enlargement of the circled portion of Figure 11.
Figure 13 is a perspective view of the gasketed mounting cup of this invention.
Figure 14 is a schematic showing the several operations or stations in the preferred mode for the manufacture of the gasketed mounting cup of this invention.
Figure 15 is a partial sectional view of the preferred apparatus used in the operation to advance the band of gasket material onto the mounting cup such that the end of the gasket material resides on the straight portion of the skirt of the mounting cup.
Figure 16 is a perspective view of one of the flexible fingers of the apparatus of Figure 15~
- 7a -Figures 17 and 18 are a plan view along the lines 17-17 and 18-18 of Figure 15.
Figure 19 is a plan view along the line 19-19 of Figure 15.
Figure 20 is a partial sectional view of the preferred apparatus used in the operation to advance the gasket material to its ultimate position on the mounting cup, Figure 21 is an enlarged, partial sectional view of the plunger sleeve of Figure 20 mounting cup and gasket material in the fully advanced position of said plunger sleeve.
Figure 22 is a plan view of the top surface of a member of the centering mechanism.
Figure 1 is a sectional view of a gasketed-mounting cup shown in inverted position relative to its placemen~
in the assembled container and produ~ed according to the gener~l method of aforesaid Canadian Application Serial No. 369,740. The mounting cup~ generally designated as lOr comprises a circular panel 12 having an integral skir~
14 depending from its periphery. The free edge of skirt 14 is ~8--olltwardly 1anged ~t 16 to orm an annular channel 18 or embr~ciny the bead ~urrounding the ~ontainer opening ~not ~hown), when the cup i~ pos~ioned ~hereon~ ~he ~nner po~tiorl of panel 12 ~
countersunk to form ~ ~ubular rim, generally designated as 2Q, which ha~ a dependent ~rcular wall 22 integrally joined with un ~per~ured hori20ntal wall 24. ~hen the cup is pl~ced in ~ealing positlorl, the ram 20 e.ct~ els a pedestal for the valve unik and the ~7al~e stem is admitted lnto the cont~ine~ throuyh aper~ured wall 24~ The gasket 26 is disposed ~n the ~xter~or ~ur:Eace of the 6kirt 14 ~nd ex'cends beyorld ~he ~un~cure of the ~kirt and channel ~nd a distarlce into s2lid channel.
'15 In Figure 2 A~l~, c~rresponding part~ ~n each figure are as numbered snd described ln Figure 2 A, ~aid igures ~howing a lichematic of the relative positioning of the moving component~ of the apparatus at each ~tage of 'she cycle ~n ~dvancing a plastic g~sket material onto ~ mounting cup ~nd ~ui:ting the tube to ultima~cely provide a b~nd o gasket material di~posed on 'che 6kirt o~ the snounting cup~
In Figure 2 A, a sleeve of gasket materîal 30 ~5 is di posed over the len~th o the ~nandrel, generally desIgnated æs 32. Moun'cing ~up 34 ~s se~urely positioned within ~ seat 36, which as mounted on a 6uitable b~se p in a manner known ~o those 6killed in the a~rtO ;Positioning pin 38 extends thro~lgh the central ~perture in the pedestal o the mounting cup 34 and provides a fiated ~pacing between the bo'ctom ~urf~ce 40 of the ~aand~el 32 ~nd t~e mounting cup 34., Man/31rel 32 has ~r~ upper portion 42 ~nd a lower portion 44 wl~ich
3~ ~r~ retr~ct~bly collaps~ble relative to each other ~the ~tructure of which is more fully described ln Figure 4). An upper and lower gripping member is provided at 46 and 48, respectively.
Figure 2A, the initial stage of a single cycle, shows the mandrel 32 disposed atop the positioning pin 38, with the mandrel 32 having the gasket material disposed at the initia] cycle stage, i.e., terminating at the bottom surface 40 of the mandrel 32. Both gripping members, 46 and 48, are in an open position.
10In Figure 2B, the upper gripping member 42 closes about the mandrel 32 and subsequently moves the upper portion 42 of the mandrel 32, toward the mounting cup 34~ By this motion, the gasket material 30 is moved past the stationary bottom surface 40 of the mandrel 1532. Both gripping members, 46 and 48, are in an open position.
In Figure 2C, the gasket material is first disposed on the skirt of the mounting cup 34 the desired distance, and subsequently, the lower gripping member 48 engages the lower portion 44 of the mandrel 32.
At the next stage of the cycle, Figure 2D, the upper gripping member 46 releases allowing the upper portion 42 of the mandrel 32 to return to its original position. Concomitantly, the positioning pin 38 is lowered beneath the mounting cup 34 and thereafter a cutting edge 50 (shown only in Figure 2D) is passed through the gasket material 30.
Figure 2E, shows a mounting cup with a band of the gasket material 30 on the skirt o~ the mounting cup .
At the next stage, Figure 2F, the bottom gripper 48 is closed on the bottom portion 44 of the mandrel 32 and positioning pin 38 is moved to the position shown in Figure 2A, after which the .
~ :~2~
gripper 4~ is released and the ~ystem i~ ~t the init~al ~t~ge $hown in F~gure 2 Ao ~igure 3 ~hows a ~ix~-st~ion gasket-mounting cup ~ssembly. ~he gasket m~teri~l 30 ~s fed . rom lndividu~l r~lïs (not shown~ of ~aid material~
Upper gripping member q6 has ~ series of openings 5~ ~hieh rece~ve the mandrel 32~ The bottom gripping member i~ 480 Mo~3r,ting cup 34 is fed ~hrough a raceway ~4 ~o ~ position benea~h each of the mandrels 32. Not shown for re2son that it i~
known to tho~e ~killed in the art, is the strllc~ure which transportZs, here ~ix, a given number o moun~ng cups ~long ~he raceway 54 to their re pective positiorls in vert1~al ~ nment with e~ch sssoci~ted mandrel~ In the tam~ng chart of Figure 6, these structures ~re referred to as the feed finger r ~eed arm and locator dev~ce~ Cu'cting ed~e 50 ~s mounted onto a rot~tirlg wheel 56 irl uc~.
a manner as to impart an elliptical motion B5 l:he cutting edge advances and ~etreats dur ir3g ~he cuttiny cycle. After the mounting ~up has received the gaske'c material 30, the cup 15 moved to ~
Etation whereat a hollowed bot~om plunger $~, ~hown in more detail in Figure 5, ~dv~nce~ over the ~kirt ~5 of the mounting cup and urges the gasket material 30 along the ~kirt.
Figure 4 shows in more detail the ~ruc~llre ~f ~ 6ingle mandrel-3nollnting cup ~tatian of ghe embodiment ~hown ~n Figure 3. The upper pos~ion 42 of the mandrel 32 ha~ a t~pered uppel ~ur~ce 60 which is threaded onto the upper surfa~ 42, ~he ~hape of the portion 60 fa~illtat~ns khe passlrlg of tlhe gasket ma'cerial ~nto the inarldrel 320 Fur~her, the upper portion 42 o the mandrel 32 ha a c~vity 62 1 n whi~h 1~ di~posed ~ ~prlng 64, Sh~wrl Ibe~t in Figures 2 A-F are the plurality of fingers 66 ~hich form the bottom end of the upper portion 42 of the mandrel 32, and the plurality of recesses 68 in lower portion 44 of the mandrel 32~ and which are aligned to receive the fingers 66 when the upper portion of the mandrel 3~ is moved toward the lower portion of the mandrel.
The upper gripping member 46 is a conventional chUck which is connected to a reciprocating ram such that it may rapidly advance and retreat from the mounting cup and when gripping the upper portion of the mandrel move said portion toward the mounting cupO
The lower gripping member 48 is a conventional chuck.
The eutting edge 50 is mounted in a conventional manner and proscribes an elliptical path in its advance and retrea~ from ~he mounting cup 34~
Figure 5 shows a reciprocating pl~nger~ the lower outer shoulder of which engages the upper edge of the gasket material and urges it further onto the skirt of the mounting cup. In Figur~ 5, the plunger, generally desi gnated as 104, has a lower hollow portion 106, terminating in shoulder 108. Set within the lower portion 106 is a spring loaded centerirlg pin 110 having ~.he protuberance 112. The protube~ance ].12 has the beveled te~minating portion 114 which mates with and centers the mounting cup 34 by contacting the sloped panel 113 of the mounting cup.
The function of the plunger action shown in Figure 5 is to advance the band of gasket material onto the mounting cup such that the band resides at or below the sloped surface 113 of the mounting cup 34. The purpose of so disposing the gasket band is -~2-to provide ~ band edge ~uppor~e~ again~t the str~igh~ portion 115 of ~he ~kirt of ~he ~o~nting cup 34, thereby to be properly positioned ko ma~e wi~h the plunser ln ~he 6econd and final plunger S action for ~dvancing the bDnd of gasket ~aterial to its ultimate po~i~ion on the mounting cup.
Figure 6 describes a timing cycle that is ~uitable for the ~ix-station un~t ~hown in Fiqure 3. ~n ~igure 6, ~he clamp ~s ~he gripping mem~er, ~ pins the positioning pins, feed finger and feed arm are ~ conventional mechanism for advancing ~ix mount~ng cups per cycle ~o be po~itioned to receive the gasket ~aterial.
A ~econd embodim*nt of the mandrel-gripper arrangemen~ hown ~n ~igur~s 7~g. This embodiment offer~ the improvement of ~implified construction avoiding the need or a positioning pin passing through the central open~ng in ~he mounting cup. In the perspective view o Figure 7 t the gasket materlal 30 i~ passed QVer a mandrel, ~enerally designated a~ 800 The mandrel 80 has an upper portion 82 and ~ lower portion 84~ the latter having rccessed portaon 86 and upper extension B8 which pas~es throu~h upper portion 82, ~aid ~pper ~xtensi~n B8 being resiliently m~nted ~gain~ the upper surfaee of portion82~ Upper gripping member 90 has upper and lower ~ets of rollers 92 and 94~
respectively, ~aid roller6 being adjusted against upper m~ndrel port~on B2 60 ~5 to preclude ~ovement 3~ of mandrel portion 82. The lower gripping member 96 is o~ conventional chuc~ design ~n~ has means, not ~hown~ or rec~proca~ly ~dv~ncing the lower gripping member toward the ~ounting cupO The mount~ng cup 98 ~ af~ixed ~n a ~uitablæ holding device on the base lO0.
.
~i~ure 9 ~ho~s the mandrel-gripper arrangement of ~he embodiinent ~f Figure 7 in initial position or starting the gasket material onto the mounti~g cup~ The gaisket material 30 extends beyond the mandrel pDrtion 84, a ~hor~ distance, l/4~ has been found ~a~isfactoryO ~igure 9 6hows ~he lower gripper 96 closed onto the mandrel portion 840 Moving ~he lower gripper 96 ~owaird the mounting eup 98, advances ~he gasket ma~erial 30 onto the ~kirt of the mounting cup. The nature of the gasket material is such tha~ as ~he mandrel portion 84 is advanced toward the mounting cup~ the gasket material 30 passes through the rollers 92 and 94 of the upper gripping member 90. ~fter the gasket material has been placed onto the skir~ of ~he mounting cup, ~he lower gripping member 96, is reieased and the mandrel por~ion 84 returns ~o i~he initial position shown in Figure 8; the cycle is then ready to be repeated. After the return of the 2~ mandrel portion 84, the cutting edge 102 advances to sever the gasket material. After cutting, the mounting ~up is passed to a ~tation (~ee Figure 5), whereat the gasket material 30 is advanced further onto the skirt of the mo~nting cup. The single mandrel of Figures 7-9 may, as with the embodiment of Figures 2-5, comprise a multiple mandrel-gripping member arrangemen~.
Subsequent to the initial ~dvanci~g o~ the band oP gasket material onto the skirt of the mounting cup~ the mounting cups are passed on conventiona~ tracking through a zone where~n ~he band of gasket material is heated by conventional heating means. ~or example, the heating ~one might . be the conventional mounting cup tracking in indirect heat exchange with an insulated heated water ~ystem, said water system being capable of clGse control through conventional heated ~ater control ~ys~ems. ~eating ~he moun~ing c~p 160-180F has been found 6atisfactory.
From the he~ting zone the g~sketed mounting cups are passed to the ~econdary plunger ~tationO
The plunger ~nd plun~ing action at the ~econdary plunger station i~ described in Figures 10-12.
In Figure 10, the band 116 of the gasket material is 6hown in ats initially advanced po~ition on the 6kirt of the mounting cup 118. The plunger of Figure 10, generally designated as 120, compri8es an outside ~leeve portion 122, a head portion 124 t a Chuck portion 126~ whi~h chuck portion is attached ~o the plunger advancing mechanism (not ~hown), the head portion 124 and sleeve portion 122 defininq a recess 128. Within the recess 128 is a mounting cup 6tripping member generally designated as 130, which compri~es ~lidably mating portions 132 ~nd 134, and a mounting cup centering member 136, which centering member 136 is b.iased away from the head portion 124 by a 6pring 1~8. Portion 132 of the mounting cup stripping member 130 ~s biased away from the head portion 124 by a ~pring 140~ Portion 134 o the mounting cup stripping mem~er 130 is biased away from portion 132 by ~pring 142.
The sleeve 122 has a lower portion 144 having an annular ~houlder 146 and an edge portion 148.
The shoulder portion 146 engages the band of gasket material 116 while advancing the band to its ul~imate position on the mounting cup 118.
The edge pcirti~l- 14~ 1-as a configuration, best ~hown in Figure 12, having a lug portion 15û. The edge 148 has ~ ~lightly radiused contour.
In operation, the mounting cups llB ~re buitaùly pl~ceù ~t the 6econdary plunger ~tetion.
- 15~
When in place, ~he plunger 120 is advanced toward the mounting cup 118 by centering the cup relative to the plunger 120, the mounting cup centering member 136 serving this function. Also ~he mounting cup stripping member 130 i5 brought into contact with the Cup9 as shown in Figure 10. Upon further advancement of the plunger 120, the completion of which is shown in Figure 11, the sleeve 122 advances to engage the shoulder 146 against the band of gasket material 116 and urge the band 11~ further onto the skirt of the mounting cup 118, ultimately advancing the band to the final position shown in Figure 11. As shown in Figure 11, the edge 148 of the sleeve 122 terminates its advance by bottoming against the walls 152 of the channel of the mounting cup, while concomitantly producing an annular rib 154 in the band of gasket material 116 through the compressive deformatiGn caused by the lug 150 acting against the gasket material. During retraction of the plunger 120, the portion 134 of the mounting cup stripping member is biased against the mounting cup 118 by the spring 142 until such time as the sleeve 122 moves clear of the ~dvanced yasket, thus precluding the retracting sleeve 122 from li~ting the mounting cup 118, Obviously, the springs 140 and 142 must be designed to permit portion 132 to advance toward portion 134 during the advance of ~he plunger 120.
The preferred plunyers used at the secondary plunger station in the two-step advancement of gasket material to its ultimate position on the moun~ing cup are described in Figures 15-19 and Figures 20-22, respectively~
Figures 15-19 are the preferred means for advancing the gasket material from its initial position on the mounting cup after cutting of the gasket tubing to the position shown in Figure 15. From the plunger station ~2~
~15a -of Figure 15 the mounting cup is moved, after heating, to the final plunger station~ The advancement of the plunger and mounting cup centering is through the simple action of advancing the reciprocating ram, which action is a con~entional means for advancing the plunger and centering means. The ac~ion of the plunger of Figure 15 is simple advancement of the plunger through movement of the reciprocating ram, since the centering means 208, being independently spring loaded, is free to retract as the ram advances the plunger portion.
In contrast thereto, the apparatus for the ultimate positioning of the gasket of Figures 20-22 is a multiple action, namely, positioning and retraction of the centering device and then advancement of the plunger.
In Figure 15, the plunger generally designated as 200 has an arbor 202 which is connected through con ventional means to a reciprocating ram (not shownj.
Within the bore 204 is telescoped member 206 which is independently spring loaded within the bore 204. The telescoped section 206 terminates in ~2~
D slot~ed ~ollar portion 220. Po~itioned within member 206 i6 mo~nting cup centering means 208, which i~ independently ~pring loaded. Slotted collar 210 is disposed outboard of telescoped 6ection 206, the slots of 6aid collar 210 receiving fingers 212. The fingers 212 ~shown in more detail in Figure 16) ~re ~fixed to ~he arbor 202 through dowel pins 214. The 510~s 21~ (Figure 16~ receive 0 rings 21B~ the purpose ~f the 0 rings being to provide a constant inwa~dly directed pressure on the fingers 212. The fingers 212 are also positi~ned within the ~lots 222 (Figure 18) o the ~lotted collar por~ion 220. Affixed to t~e bottom of telescop~d member 206 is a plate 224, ~aid plate 224 providing a ~houlder 226 ~gainst which the b~ttom ~houlder 228 of the fingers 212 ab~t during the advancement of the plunger 200. The distance that the fingers 212 travel before meeting the shoulder 226 determines the distance that the gasket 230 will be advanced onto the skirt 232 of the mounting cup 234. Threadedly mounted onto the slotted collar 210 is an outer adjustable sleeve member 236 which sleeve membe~ 236 unctions to prevent outward 6playing of the fingexs 212 and thereby to direct the bottom surface 238 of the fingers 212 against the top surface of the gasket material ~30.
After initially advancing the gasket onto the moullting cup, the cup and gasket are heated to 160-180F. and then passed to the final plunger sta~.ion.
In Figure 20 is shown the plunger mechanism generally designated as ~40, which initially centerG the mounting cup 242 and advances the gasket 244 to its ultimate position on the mounting cup 242~ The plunger mechanism 240 is ~ttached to ~n arbor (not 6hown) which in ~u~n i~ attached by convention~l means to ~ reciproc~ting press ~not 6hown). The pl~nger mechanism has a plug ~ember 250 which has ~ central bore defining a chamber 252. ~ffixed to the plug member 250 iB inner sleeve 254, said ~leeve having a flan~e 256 or connecting to the plug member 250.
Outer ~leeve 258 is connected to inner sleeve 254 through flange 260.
1~ Centering mechanism, generally designated as 262, is disposed within the lnner 61eeve 254 and the chamber 2S2 and comprises a ~pring retainPr and stop 264, rod 266l piston member 268, 0 rings ~70 ~nd centering plug 272.
Mounting cup stripper 274 is independen~ly ~pring loaded and is assembled within the inner sleeve 254 and rests on ~houlder 276 oÇ inner sleeve 254. The openi~g 278 of the stripper 274 has a slot configuration which is shown in greater detail in Figure 22. The slot configuration prevents the centering mechanism fro~ being removed from the plunger assembly~ the edge 2B0 of the spring retainer and stop 264 abutting ~gainst the upper ~urface 282 of the stripper 274. The leading 6urface 284 defined by the inner 254 and outer 258 sleeves is best ~hown in Figure 21. Note the recess portion 286 in the ~urface 284 of the outer 61eeve 258. Also note the shoulde~ ~90 of the inner sleeve 254 (Fig. 21~
In operation the centering mechanism 262 is advanced toward the mounting cup by passing ~ir under pressure into ~he chamber 252 ~aid advancement occ~ring ~t the initial phase of the downward stroke of ~he reciprocating pres~. ~he air passe~ through the ~lot of the stripper 27~ and generates ~ pressure against the piston 268 which overcomes the retracting pressure of the ~pring 2B8 ~nd advances the centering mechanism against the ~ ` ~ ~
~18-moun~ing cup. Before the advancing sleeves contact the gaske~, the centering mechani6m i~ retracted by closing off the ~ir supply and allowing the ~pring to return the mechanism to lts retracted pOSition.
The plungec 61eeves continue kheir ~dvance ~nd 6houlder 290 engages the gaskçt 292 and urg?s the ~asket further onto the mounting cup as shown in ~igure 21. The inner and outer 61eeves ultimately bottom in the ohannel 294 of the mounting cup.
During this bottoming action the ~leeves effect a compressive force ~gainst the plastic gasket material and the gasket i~ folded into the recess 286~ thereby deforming the 6urface of the gasket as ~hown in Figure 21. After advancing and bottoming khe plunger, the ~leeves sre retracted while retaining the 6tripper in contact with the ~ounting cup through lt~ independent ~pring means for a portion of the retrao~ion cycle, namely until the inner 61eeve clears the m~unting cup. Subsequen~
to the plunge~ actionO the mounting cups are promptly cooled to about 40DF.
It has been found that with a mounting cup having a thickness of ~011" a gasket material of .014~ that 6etting of the advancement of the sleeves so that it terminates at .Oi6~ of the ~urface on which the mounting cup rests provides a satisfactory compression and deformation of the gasket ~aterial.
Preferablyt following the advancement of the gasket material to it~ ultimate posi~ion on the mounting cup, the gaske~ed mounting cup is cooled to room temperature.
To form a friction fit between gaske~ material and the ~kirt o the mounting ~up, the inside diameter of the sleeve of the gasket material i5 , X . . ~
~ligh~ly less than the out~ide diameter of the ~kir~ portion of the mounting cup. Convent~on~lly, the ~o-called one inch aerosol mounting cup~ have a ~kirt diameter of ~9980-.590~. ~t has been ound that gasket material having a thickness of ~017 is ~atisfactory. To accomodate this thickness of gasket~ mounting cups having a 6kirt diameter of .950 inches have been used. Gasket bands ~aving a width of 9/32~ have been ~atisfactorily employed.
While ~ny plastic gasket ~aterial having ~ufficient resiliency may be used, provided however, ~hat there is compatabili~y between ~he ~ontainer contents ~nd the plas~i~ ma~erial, i~ has been found that a plastic comprising low density polyethylene (density range of .916-~922) having S-lS~ polyisobutylene in th~ molecular wei~ht range of 40,000-200vOOQ~ plus stabili~ers usually used with polyethylene in the environment in whieh the gasket material will reside, provides a ~atisfactory g2sket ma~erial over a hroad product range.
While the invention has been specifically described in terms of providing an ~nnular rib in the gasket, it ~hould be understood that a series ~5 of ribs disposed radially along the width of the gasket may lîkewise be utilized. Also a plurality of ~nnular ribs may be employed, it generally being found that a discontinuity to the planarity or smoothness of the gasket, such as by ~he described ribhing, imparts to the gasket a resistance ~o being dislodged during illi~g or a ~epositioning on the mounting ~up by t~e gasket returning to the initial advanced position. Figure 13 shows ~n perspective the novel gasketed mounting cup of ~hi~
inventiOn-In contr~st to m~unting cups having gaske~
~aterial only ~long the 6kirt portion of the c~p, the c~p of this invention, by having gasket ~aterial from the point Gf clinch between ~h~ cup and the container bead as ~ell a~ e~tending the gasket material onto the channel, pr~vides a mounting cup having ~uperior sealing characteristics. Also, the gasket of the ~ubject mounting cup is substantially uniform in thickness throughout prior to olinching to ~he container, whereas the ~ f lowed-in~ ~ype gaske~ of the prior art i~ non-uniform, thinning toward ~he outer edge of the ohannel and where the skirt and channel inter6ec~. Uniform thickness provides a ~et~er lS Geal.
.
.
Figure 2A, the initial stage of a single cycle, shows the mandrel 32 disposed atop the positioning pin 38, with the mandrel 32 having the gasket material disposed at the initia] cycle stage, i.e., terminating at the bottom surface 40 of the mandrel 32. Both gripping members, 46 and 48, are in an open position.
10In Figure 2B, the upper gripping member 42 closes about the mandrel 32 and subsequently moves the upper portion 42 of the mandrel 32, toward the mounting cup 34~ By this motion, the gasket material 30 is moved past the stationary bottom surface 40 of the mandrel 1532. Both gripping members, 46 and 48, are in an open position.
In Figure 2C, the gasket material is first disposed on the skirt of the mounting cup 34 the desired distance, and subsequently, the lower gripping member 48 engages the lower portion 44 of the mandrel 32.
At the next stage of the cycle, Figure 2D, the upper gripping member 46 releases allowing the upper portion 42 of the mandrel 32 to return to its original position. Concomitantly, the positioning pin 38 is lowered beneath the mounting cup 34 and thereafter a cutting edge 50 (shown only in Figure 2D) is passed through the gasket material 30.
Figure 2E, shows a mounting cup with a band of the gasket material 30 on the skirt o~ the mounting cup .
At the next stage, Figure 2F, the bottom gripper 48 is closed on the bottom portion 44 of the mandrel 32 and positioning pin 38 is moved to the position shown in Figure 2A, after which the .
~ :~2~
gripper 4~ is released and the ~ystem i~ ~t the init~al ~t~ge $hown in F~gure 2 Ao ~igure 3 ~hows a ~ix~-st~ion gasket-mounting cup ~ssembly. ~he gasket m~teri~l 30 ~s fed . rom lndividu~l r~lïs (not shown~ of ~aid material~
Upper gripping member q6 has ~ series of openings 5~ ~hieh rece~ve the mandrel 32~ The bottom gripping member i~ 480 Mo~3r,ting cup 34 is fed ~hrough a raceway ~4 ~o ~ position benea~h each of the mandrels 32. Not shown for re2son that it i~
known to tho~e ~killed in the art, is the strllc~ure which transportZs, here ~ix, a given number o moun~ng cups ~long ~he raceway 54 to their re pective positiorls in vert1~al ~ nment with e~ch sssoci~ted mandrel~ In the tam~ng chart of Figure 6, these structures ~re referred to as the feed finger r ~eed arm and locator dev~ce~ Cu'cting ed~e 50 ~s mounted onto a rot~tirlg wheel 56 irl uc~.
a manner as to impart an elliptical motion B5 l:he cutting edge advances and ~etreats dur ir3g ~he cuttiny cycle. After the mounting ~up has received the gaske'c material 30, the cup 15 moved to ~
Etation whereat a hollowed bot~om plunger $~, ~hown in more detail in Figure 5, ~dv~nce~ over the ~kirt ~5 of the mounting cup and urges the gasket material 30 along the ~kirt.
Figure 4 shows in more detail the ~ruc~llre ~f ~ 6ingle mandrel-3nollnting cup ~tatian of ghe embodiment ~hown ~n Figure 3. The upper pos~ion 42 of the mandrel 32 ha~ a t~pered uppel ~ur~ce 60 which is threaded onto the upper surfa~ 42, ~he ~hape of the portion 60 fa~illtat~ns khe passlrlg of tlhe gasket ma'cerial ~nto the inarldrel 320 Fur~her, the upper portion 42 o the mandrel 32 ha a c~vity 62 1 n whi~h 1~ di~posed ~ ~prlng 64, Sh~wrl Ibe~t in Figures 2 A-F are the plurality of fingers 66 ~hich form the bottom end of the upper portion 42 of the mandrel 32, and the plurality of recesses 68 in lower portion 44 of the mandrel 32~ and which are aligned to receive the fingers 66 when the upper portion of the mandrel 3~ is moved toward the lower portion of the mandrel.
The upper gripping member 46 is a conventional chUck which is connected to a reciprocating ram such that it may rapidly advance and retreat from the mounting cup and when gripping the upper portion of the mandrel move said portion toward the mounting cupO
The lower gripping member 48 is a conventional chuck.
The eutting edge 50 is mounted in a conventional manner and proscribes an elliptical path in its advance and retrea~ from ~he mounting cup 34~
Figure 5 shows a reciprocating pl~nger~ the lower outer shoulder of which engages the upper edge of the gasket material and urges it further onto the skirt of the mounting cup. In Figur~ 5, the plunger, generally desi gnated as 104, has a lower hollow portion 106, terminating in shoulder 108. Set within the lower portion 106 is a spring loaded centerirlg pin 110 having ~.he protuberance 112. The protube~ance ].12 has the beveled te~minating portion 114 which mates with and centers the mounting cup 34 by contacting the sloped panel 113 of the mounting cup.
The function of the plunger action shown in Figure 5 is to advance the band of gasket material onto the mounting cup such that the band resides at or below the sloped surface 113 of the mounting cup 34. The purpose of so disposing the gasket band is -~2-to provide ~ band edge ~uppor~e~ again~t the str~igh~ portion 115 of ~he ~kirt of ~he ~o~nting cup 34, thereby to be properly positioned ko ma~e wi~h the plunser ln ~he 6econd and final plunger S action for ~dvancing the bDnd of gasket ~aterial to its ultimate po~i~ion on the mounting cup.
Figure 6 describes a timing cycle that is ~uitable for the ~ix-station un~t ~hown in Fiqure 3. ~n ~igure 6, ~he clamp ~s ~he gripping mem~er, ~ pins the positioning pins, feed finger and feed arm are ~ conventional mechanism for advancing ~ix mount~ng cups per cycle ~o be po~itioned to receive the gasket ~aterial.
A ~econd embodim*nt of the mandrel-gripper arrangemen~ hown ~n ~igur~s 7~g. This embodiment offer~ the improvement of ~implified construction avoiding the need or a positioning pin passing through the central open~ng in ~he mounting cup. In the perspective view o Figure 7 t the gasket materlal 30 i~ passed QVer a mandrel, ~enerally designated a~ 800 The mandrel 80 has an upper portion 82 and ~ lower portion 84~ the latter having rccessed portaon 86 and upper extension B8 which pas~es throu~h upper portion 82, ~aid ~pper ~xtensi~n B8 being resiliently m~nted ~gain~ the upper surfaee of portion82~ Upper gripping member 90 has upper and lower ~ets of rollers 92 and 94~
respectively, ~aid roller6 being adjusted against upper m~ndrel port~on B2 60 ~5 to preclude ~ovement 3~ of mandrel portion 82. The lower gripping member 96 is o~ conventional chuc~ design ~n~ has means, not ~hown~ or rec~proca~ly ~dv~ncing the lower gripping member toward the ~ounting cupO The mount~ng cup 98 ~ af~ixed ~n a ~uitablæ holding device on the base lO0.
.
~i~ure 9 ~ho~s the mandrel-gripper arrangement of ~he embodiinent ~f Figure 7 in initial position or starting the gasket material onto the mounti~g cup~ The gaisket material 30 extends beyond the mandrel pDrtion 84, a ~hor~ distance, l/4~ has been found ~a~isfactoryO ~igure 9 6hows ~he lower gripper 96 closed onto the mandrel portion 840 Moving ~he lower gripper 96 ~owaird the mounting eup 98, advances ~he gasket ma~erial 30 onto the ~kirt of the mounting cup. The nature of the gasket material is such tha~ as ~he mandrel portion 84 is advanced toward the mounting cup~ the gasket material 30 passes through the rollers 92 and 94 of the upper gripping member 90. ~fter the gasket material has been placed onto the skir~ of ~he mounting cup, ~he lower gripping member 96, is reieased and the mandrel por~ion 84 returns ~o i~he initial position shown in Figure 8; the cycle is then ready to be repeated. After the return of the 2~ mandrel portion 84, the cutting edge 102 advances to sever the gasket material. After cutting, the mounting ~up is passed to a ~tation (~ee Figure 5), whereat the gasket material 30 is advanced further onto the skirt of the mo~nting cup. The single mandrel of Figures 7-9 may, as with the embodiment of Figures 2-5, comprise a multiple mandrel-gripping member arrangemen~.
Subsequent to the initial ~dvanci~g o~ the band oP gasket material onto the skirt of the mounting cup~ the mounting cups are passed on conventiona~ tracking through a zone where~n ~he band of gasket material is heated by conventional heating means. ~or example, the heating ~one might . be the conventional mounting cup tracking in indirect heat exchange with an insulated heated water ~ystem, said water system being capable of clGse control through conventional heated ~ater control ~ys~ems. ~eating ~he moun~ing c~p 160-180F has been found 6atisfactory.
From the he~ting zone the g~sketed mounting cups are passed to the ~econdary plunger ~tationO
The plunger ~nd plun~ing action at the ~econdary plunger station i~ described in Figures 10-12.
In Figure 10, the band 116 of the gasket material is 6hown in ats initially advanced po~ition on the 6kirt of the mounting cup 118. The plunger of Figure 10, generally designated as 120, compri8es an outside ~leeve portion 122, a head portion 124 t a Chuck portion 126~ whi~h chuck portion is attached ~o the plunger advancing mechanism (not ~hown), the head portion 124 and sleeve portion 122 defininq a recess 128. Within the recess 128 is a mounting cup 6tripping member generally designated as 130, which compri~es ~lidably mating portions 132 ~nd 134, and a mounting cup centering member 136, which centering member 136 is b.iased away from the head portion 124 by a 6pring 1~8. Portion 132 of the mounting cup stripping member 130 ~s biased away from the head portion 124 by a ~pring 140~ Portion 134 o the mounting cup stripping mem~er 130 is biased away from portion 132 by ~pring 142.
The sleeve 122 has a lower portion 144 having an annular ~houlder 146 and an edge portion 148.
The shoulder portion 146 engages the band of gasket material 116 while advancing the band to its ul~imate position on the mounting cup 118.
The edge pcirti~l- 14~ 1-as a configuration, best ~hown in Figure 12, having a lug portion 15û. The edge 148 has ~ ~lightly radiused contour.
In operation, the mounting cups llB ~re buitaùly pl~ceù ~t the 6econdary plunger ~tetion.
- 15~
When in place, ~he plunger 120 is advanced toward the mounting cup 118 by centering the cup relative to the plunger 120, the mounting cup centering member 136 serving this function. Also ~he mounting cup stripping member 130 i5 brought into contact with the Cup9 as shown in Figure 10. Upon further advancement of the plunger 120, the completion of which is shown in Figure 11, the sleeve 122 advances to engage the shoulder 146 against the band of gasket material 116 and urge the band 11~ further onto the skirt of the mounting cup 118, ultimately advancing the band to the final position shown in Figure 11. As shown in Figure 11, the edge 148 of the sleeve 122 terminates its advance by bottoming against the walls 152 of the channel of the mounting cup, while concomitantly producing an annular rib 154 in the band of gasket material 116 through the compressive deformatiGn caused by the lug 150 acting against the gasket material. During retraction of the plunger 120, the portion 134 of the mounting cup stripping member is biased against the mounting cup 118 by the spring 142 until such time as the sleeve 122 moves clear of the ~dvanced yasket, thus precluding the retracting sleeve 122 from li~ting the mounting cup 118, Obviously, the springs 140 and 142 must be designed to permit portion 132 to advance toward portion 134 during the advance of ~he plunger 120.
The preferred plunyers used at the secondary plunger station in the two-step advancement of gasket material to its ultimate position on the moun~ing cup are described in Figures 15-19 and Figures 20-22, respectively~
Figures 15-19 are the preferred means for advancing the gasket material from its initial position on the mounting cup after cutting of the gasket tubing to the position shown in Figure 15. From the plunger station ~2~
~15a -of Figure 15 the mounting cup is moved, after heating, to the final plunger station~ The advancement of the plunger and mounting cup centering is through the simple action of advancing the reciprocating ram, which action is a con~entional means for advancing the plunger and centering means. The ac~ion of the plunger of Figure 15 is simple advancement of the plunger through movement of the reciprocating ram, since the centering means 208, being independently spring loaded, is free to retract as the ram advances the plunger portion.
In contrast thereto, the apparatus for the ultimate positioning of the gasket of Figures 20-22 is a multiple action, namely, positioning and retraction of the centering device and then advancement of the plunger.
In Figure 15, the plunger generally designated as 200 has an arbor 202 which is connected through con ventional means to a reciprocating ram (not shownj.
Within the bore 204 is telescoped member 206 which is independently spring loaded within the bore 204. The telescoped section 206 terminates in ~2~
D slot~ed ~ollar portion 220. Po~itioned within member 206 i6 mo~nting cup centering means 208, which i~ independently ~pring loaded. Slotted collar 210 is disposed outboard of telescoped 6ection 206, the slots of 6aid collar 210 receiving fingers 212. The fingers 212 ~shown in more detail in Figure 16) ~re ~fixed to ~he arbor 202 through dowel pins 214. The 510~s 21~ (Figure 16~ receive 0 rings 21B~ the purpose ~f the 0 rings being to provide a constant inwa~dly directed pressure on the fingers 212. The fingers 212 are also positi~ned within the ~lots 222 (Figure 18) o the ~lotted collar por~ion 220. Affixed to t~e bottom of telescop~d member 206 is a plate 224, ~aid plate 224 providing a ~houlder 226 ~gainst which the b~ttom ~houlder 228 of the fingers 212 ab~t during the advancement of the plunger 200. The distance that the fingers 212 travel before meeting the shoulder 226 determines the distance that the gasket 230 will be advanced onto the skirt 232 of the mounting cup 234. Threadedly mounted onto the slotted collar 210 is an outer adjustable sleeve member 236 which sleeve membe~ 236 unctions to prevent outward 6playing of the fingexs 212 and thereby to direct the bottom surface 238 of the fingers 212 against the top surface of the gasket material ~30.
After initially advancing the gasket onto the moullting cup, the cup and gasket are heated to 160-180F. and then passed to the final plunger sta~.ion.
In Figure 20 is shown the plunger mechanism generally designated as ~40, which initially centerG the mounting cup 242 and advances the gasket 244 to its ultimate position on the mounting cup 242~ The plunger mechanism 240 is ~ttached to ~n arbor (not 6hown) which in ~u~n i~ attached by convention~l means to ~ reciproc~ting press ~not 6hown). The pl~nger mechanism has a plug ~ember 250 which has ~ central bore defining a chamber 252. ~ffixed to the plug member 250 iB inner sleeve 254, said ~leeve having a flan~e 256 or connecting to the plug member 250.
Outer ~leeve 258 is connected to inner sleeve 254 through flange 260.
1~ Centering mechanism, generally designated as 262, is disposed within the lnner 61eeve 254 and the chamber 2S2 and comprises a ~pring retainPr and stop 264, rod 266l piston member 268, 0 rings ~70 ~nd centering plug 272.
Mounting cup stripper 274 is independen~ly ~pring loaded and is assembled within the inner sleeve 254 and rests on ~houlder 276 oÇ inner sleeve 254. The openi~g 278 of the stripper 274 has a slot configuration which is shown in greater detail in Figure 22. The slot configuration prevents the centering mechanism fro~ being removed from the plunger assembly~ the edge 2B0 of the spring retainer and stop 264 abutting ~gainst the upper ~urface 282 of the stripper 274. The leading 6urface 284 defined by the inner 254 and outer 258 sleeves is best ~hown in Figure 21. Note the recess portion 286 in the ~urface 284 of the outer 61eeve 258. Also note the shoulde~ ~90 of the inner sleeve 254 (Fig. 21~
In operation the centering mechanism 262 is advanced toward the mounting cup by passing ~ir under pressure into ~he chamber 252 ~aid advancement occ~ring ~t the initial phase of the downward stroke of ~he reciprocating pres~. ~he air passe~ through the ~lot of the stripper 27~ and generates ~ pressure against the piston 268 which overcomes the retracting pressure of the ~pring 2B8 ~nd advances the centering mechanism against the ~ ` ~ ~
~18-moun~ing cup. Before the advancing sleeves contact the gaske~, the centering mechani6m i~ retracted by closing off the ~ir supply and allowing the ~pring to return the mechanism to lts retracted pOSition.
The plungec 61eeves continue kheir ~dvance ~nd 6houlder 290 engages the gaskçt 292 and urg?s the ~asket further onto the mounting cup as shown in ~igure 21. The inner and outer 61eeves ultimately bottom in the ohannel 294 of the mounting cup.
During this bottoming action the ~leeves effect a compressive force ~gainst the plastic gasket material and the gasket i~ folded into the recess 286~ thereby deforming the 6urface of the gasket as ~hown in Figure 21. After advancing and bottoming khe plunger, the ~leeves sre retracted while retaining the 6tripper in contact with the ~ounting cup through lt~ independent ~pring means for a portion of the retrao~ion cycle, namely until the inner 61eeve clears the m~unting cup. Subsequen~
to the plunge~ actionO the mounting cups are promptly cooled to about 40DF.
It has been found that with a mounting cup having a thickness of ~011" a gasket material of .014~ that 6etting of the advancement of the sleeves so that it terminates at .Oi6~ of the ~urface on which the mounting cup rests provides a satisfactory compression and deformation of the gasket ~aterial.
Preferablyt following the advancement of the gasket material to it~ ultimate posi~ion on the mounting cup, the gaske~ed mounting cup is cooled to room temperature.
To form a friction fit between gaske~ material and the ~kirt o the mounting ~up, the inside diameter of the sleeve of the gasket material i5 , X . . ~
~ligh~ly less than the out~ide diameter of the ~kir~ portion of the mounting cup. Convent~on~lly, the ~o-called one inch aerosol mounting cup~ have a ~kirt diameter of ~9980-.590~. ~t has been ound that gasket material having a thickness of ~017 is ~atisfactory. To accomodate this thickness of gasket~ mounting cups having a 6kirt diameter of .950 inches have been used. Gasket bands ~aving a width of 9/32~ have been ~atisfactorily employed.
While ~ny plastic gasket ~aterial having ~ufficient resiliency may be used, provided however, ~hat there is compatabili~y between ~he ~ontainer contents ~nd the plas~i~ ma~erial, i~ has been found that a plastic comprising low density polyethylene (density range of .916-~922) having S-lS~ polyisobutylene in th~ molecular wei~ht range of 40,000-200vOOQ~ plus stabili~ers usually used with polyethylene in the environment in whieh the gasket material will reside, provides a ~atisfactory g2sket ma~erial over a hroad product range.
While the invention has been specifically described in terms of providing an ~nnular rib in the gasket, it ~hould be understood that a series ~5 of ribs disposed radially along the width of the gasket may lîkewise be utilized. Also a plurality of ~nnular ribs may be employed, it generally being found that a discontinuity to the planarity or smoothness of the gasket, such as by ~he described ribhing, imparts to the gasket a resistance ~o being dislodged during illi~g or a ~epositioning on the mounting ~up by t~e gasket returning to the initial advanced position. Figure 13 shows ~n perspective the novel gasketed mounting cup of ~hi~
inventiOn-In contr~st to m~unting cups having gaske~
~aterial only ~long the 6kirt portion of the c~p, the c~p of this invention, by having gasket ~aterial from the point Gf clinch between ~h~ cup and the container bead as ~ell a~ e~tending the gasket material onto the channel, pr~vides a mounting cup having ~uperior sealing characteristics. Also, the gasket of the ~ubject mounting cup is substantially uniform in thickness throughout prior to olinching to ~he container, whereas the ~ f lowed-in~ ~ype gaske~ of the prior art i~ non-uniform, thinning toward ~he outer edge of the ohannel and where the skirt and channel inter6ec~. Uniform thickness provides a ~et~er lS Geal.
.
.
Claims (27)
1. An apparatus for the mass production of a gasket-bearing aerosol mounting cup having a panel, a skirt depending from the periphery of the panel and an annular channel extending outwardly from the skirt comprising (a) means for disposing a band of gasket material onto the skirt of the mounting cup such that the end of the band distal from the channel of the mounting cup extends beyond the panel of the mounting cup, (b) primary plunger means for advancing the band of gasket material onto the skirt of the mounting cup such that the aforesaid distal end of the band is positioned at or below the periphery of the panel of the mounting cup, (c) means for heating the band of gasket material, subsequent to the use of the primary plunger means, (d) secondary plunger means having a retractable sleeve portion for advancing the heated band of gasket material to its ultimate position on the skirt and within the channel of the mounting cup, and or imparting a compressive deformation to the band of gasket material.
2. The apparatus of claim 1, and further wherein means are provided for cooling the band of gasket material subsequent to the use of the secondary plunger means.
3. The apparatus of claim 1, wherein the secondary plunger means has means for preventing the movement of the gasketed mounting cup during retraction of the sleeve portion.
4. The apparatus of claim 3 wherein the secondary plunger means has means for aligning the mounting cup and the secondary plunger means.
5. The apparatus of claim 3, wherein the secondary plunger means has a recess defined by the plunger head and retractable plunger sleeve and further wherein the means for preventing movement of the gasketed mounting cup during the advance or retraction of the plunger sleeve is disposed within said recess.
6. The apparatus of claim 5, and further wherein the means for aligning the mounting cup and the secondary plunger means is disposed within the recess of the secondary plunger means.
7. The apparatus of claim 5, wherein the means for preventing movement of the gasketed mounting cup includes a member which is biased against the mounting cup during the advance and retraction of the secondary plunger sleeve.
8. The apparatus of claim 6, wherein the means for aligning the mounting cup and the secondary plunger is biased against the mounting cup during the advance and retraction of the secondary plunger sleeve.
9. The apparatus of claim 6, wherein both the means for aligning the mounting cup and plunger and for preventing movement of the gasketed mounting cup are biased against the mounting cup during advance and retraction of the secondary plunger sleeve.
10. The apparatus of claim 1, wherein the secondary plunger means includes a plunger sleeve having a gasket-contacting portion bearing an extended portion for imparting a compressive deformation to the band of gasket material.
11. The apparatus of claim 10, wherein the sleeve of the secondary plunger further includes a gasket-contacting portion dimensioned such that the perimeter of the gasket-contacting portion contacts the advancing edge of the band of gasket material simultaneously or immediately prior to the final advance of the plunger sleeve thereby causing a compressive deformation in the gasket.
12. The apparatus of claim 7, wherein the secondary plunger means includes a plunger sleeve having a gasket-contacting portion bearing an extended portion for imparting an annular rib to the band of gasket material.
13. The apparatus of claim 8, wherein the secondary plunger means includes a plunger sleeve having a gasket-contacting portion bearing an extended portion for imparting an annular rib to the band of gasket material.
14. The apparatus of claim 9, wherein the secondary plunger means includes a plunger sleeve having a gasket-contacting portion bearing an extended portion for imparting an annular rib to the band of gasket material.
15. The apparatus of claim 12, and further wherein the sleeve of the secondary plunger further includes a gasket-contacting portion dimensioned such that the perimeter of the gasket-contacting portion contacts the advancing edge of the band of gasket material simultaneously or immediately prior to the final advance of the plunger sleeve, thereby causing an annular rib formation in the gasket.
16. The apparatus of claim 13, and further wherein the sleeve of the secondary plunger further includes a gasket-contacting portion dimensioned such that the perimeter of the gasket-contacting portion contacts the advancing edge of the band of gasket material simultaneously or immediately prior to the final advance of the plunger sleeve, thereby causing an annular rib in the gasket.
17. The apparatus of claim 14, and further wherein the sleeve of the secondary plunger further includes a gasket-contacting portion dimensioned such that the perimeter of the gasket-contacting portion contacts the advancing edge of the band of gasket material simultaneously or immediately prior to the final advance of the plunger sleeve, thereby causing an annular rib in the gasket.
18. For use in the mass production of gasket-bearing mounting cups having panel, skirt and channel portions, apparatus for advancing the gasket material to its final position on the mounting cup comprising plunger means having a retractable sleeve, said sleeve having a gasket-contacting portion for imparting compressive deformation to the gasket material.
19. The apparatus of claim 18, and further wherein the secondary plunger means has means for preventing the movement of the gasketed mounting cup during retraction of the sleeve portion.
20. The apparatus of claim 18, and further wherein the secondary plunger means has means for aligning the mounting cup and the secondary plunger means.
21. The apparatus of claim 18, and further wherein the secondary plunger means has a recess defined by the plunger head and retractable plunger sleeve and further wherein the means for preventing movement of the gasketed mounting cup is disposed within said recess.
22. The apparatus of claim 18, and further wherein the means for aligning the mounting cup and the secondary plunger means is disposed within the recess of the secondary plunger means.
23. The apparatus of claim 18, and further wherein the means for preventing movement of the gasketed mounting cup includes a member which is biased against the mounting cup during the advance and retraction of the secondary plunger sleeve.
24. The apparatus of claim 18, and further wherein the means for aligning the mounting cup and the secondary plunger is biased against the mounting cup during the advance and retraction of the secondary plunger sleeve.
25. The apparatus of claim 18, and further wherein both the means for aligning the mounting cup and plunger and for preventing movement of the gasketed mounting cup are biased against the mounting cup during advance and retraction of the secondary plunger sleeve.
26. The method for the mass production of a gasket-bearing aerosol mounting cup having panel, skirt and channel portions comprising (a) forming a band of gasket material on the skirt of the mounting cup which extends above the panel of said cup, (b) initially advancing the band of gasket material onto the skirt of the mounting cup at a primary advancing station such that edge of the gasket material distal from the channel of the mounting cup is positioned at or below the periphery of the panel of the mounting cup, (c) heating the band of gasket material and (d) advancing the band of gasket material to its ultimate position on the mounting cup and simultaneously imparting a compressive deformation to the gasket material.
27. The method of claim 26, and further wherein the gasket is cooled subsequent to the formation of the rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000480255A CA1212928A (en) | 1981-09-18 | 1985-04-26 | Aerosol container closure |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US30244281A | 1981-09-18 | 1981-09-18 | |
| US302,442 | 1981-09-18 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000480255A Division CA1212928A (en) | 1981-09-18 | 1985-04-26 | Aerosol container closure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1204080A true CA1204080A (en) | 1986-05-06 |
Family
ID=23167750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000411683A Expired CA1204080A (en) | 1981-09-18 | 1982-09-17 | Aerosol container closure |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP0075287B1 (en) |
| JP (1) | JPS5877728A (en) |
| AU (1) | AU563586B2 (en) |
| CA (1) | CA1204080A (en) |
| DE (1) | DE3275509D1 (en) |
| ES (3) | ES515808A0 (en) |
| GR (1) | GR81376B (en) |
| MX (1) | MX161024A (en) |
| PT (1) | PT75573B (en) |
| ZA (1) | ZA826791B (en) |
| ZW (1) | ZW19682A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4704778A (en) * | 1982-07-06 | 1987-11-10 | Plastic Specialties And Technologies, Inc. | Valve mounting assembly for aerosol containers and the like |
| CA1221946A (en) * | 1983-01-18 | 1987-05-19 | Robert H. Abplanalp | Aerosol valve mounting cup |
| DE112007003500A5 (en) * | 2007-03-14 | 2010-02-11 | BÜKA Chemie GmbH | Method for sealing and fixing extraction valves in disposable compressed gas containers |
| JP6466707B2 (en) * | 2014-12-11 | 2019-02-06 | 株式会社丸一 | Manufacturing method of cap with seal member |
| CN104690686B (en) * | 2015-03-10 | 2016-06-08 | 蔡斌奇 | Automatization's rubber seal assembling device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR8534E (en) * | 1906-03-06 | 1908-04-28 | Arthur Wilzin | Apparatus for lining the bottoms or lids of metal cans with a paste or mastic intended to seal the joints |
| US2700186A (en) * | 1949-06-15 | 1955-01-25 | Anchor Hocking Glass Corp | Method of making closure caps |
| US2763228A (en) * | 1952-10-08 | 1956-09-18 | Ball Brothers Co Inc | Lid-making apparatus |
| US3225691A (en) * | 1961-03-10 | 1965-12-28 | Continental Can Co | Printing plate for gasket type closures |
| US4155153A (en) * | 1978-02-06 | 1979-05-22 | Garlock Inc. | Method for making a shaft seal having a guard or scraper |
| IN154639B (en) * | 1980-02-01 | 1984-11-24 | Abplanalp Robert H |
-
1982
- 1982-09-15 MX MX194424A patent/MX161024A/en unknown
- 1982-09-15 AU AU88427/82A patent/AU563586B2/en not_active Expired
- 1982-09-16 GR GR69292A patent/GR81376B/el unknown
- 1982-09-16 ZA ZA826791A patent/ZA826791B/en unknown
- 1982-09-17 EP EP82108582A patent/EP0075287B1/en not_active Expired
- 1982-09-17 PT PT75573A patent/PT75573B/en unknown
- 1982-09-17 DE DE8282108582T patent/DE3275509D1/en not_active Expired
- 1982-09-17 ZW ZW196/82A patent/ZW19682A1/en unknown
- 1982-09-17 CA CA000411683A patent/CA1204080A/en not_active Expired
- 1982-09-17 ES ES515808A patent/ES515808A0/en active Granted
- 1982-09-18 JP JP57161611A patent/JPS5877728A/en active Granted
-
1983
- 1983-09-30 ES ES1983274695U patent/ES274695Y/en not_active Expired
- 1983-09-30 ES ES526153A patent/ES526153A0/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| PT75573A (en) | 1982-10-01 |
| ES8501344A1 (en) | 1984-11-16 |
| ES8402751A1 (en) | 1984-03-01 |
| JPH0127788B2 (en) | 1989-05-30 |
| ES526153A0 (en) | 1984-11-16 |
| PT75573B (en) | 1984-11-26 |
| EP0075287A3 (en) | 1983-09-07 |
| ZW19682A1 (en) | 1983-01-19 |
| ES515808A0 (en) | 1984-03-01 |
| ZA826791B (en) | 1983-07-27 |
| GR81376B (en) | 1984-12-11 |
| ES274695U (en) | 1984-02-16 |
| DE3275509D1 (en) | 1987-04-09 |
| AU8842782A (en) | 1983-03-24 |
| EP0075287B1 (en) | 1987-03-04 |
| ES274695Y (en) | 1984-10-01 |
| JPS5877728A (en) | 1983-05-11 |
| AU563586B2 (en) | 1987-07-16 |
| EP0075287A2 (en) | 1983-03-30 |
| MX161024A (en) | 1990-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0033626B1 (en) | Aerosol container closures | |
| EP0074343B1 (en) | Method and apparatus for manufacturing a container having an inner end closure | |
| CA1204080A (en) | Aerosol container closure | |
| US4547948A (en) | Method for the mass production of a gasket-bearing mounting cup | |
| KR0173984B1 (en) | Improved gasket configuration for an aerosol container closure | |
| WO1993012982A1 (en) | A dimpled gasket | |
| US6341711B1 (en) | Valve mounting assembly for aerosol container and method | |
| US5213231A (en) | Aerosol container closure | |
| US4546525A (en) | Apparatus for the mass production of a gasket-bearing aerosol mounting cup | |
| CA2228995C (en) | Gasketed aerosol mounting cup | |
| US4559198A (en) | Method of molding an aerosol container closure | |
| US5024592A (en) | Apparatus for forming an aerosol container closure | |
| CA1212928A (en) | Aerosol container closure | |
| KR20020043554A (en) | Improved gasketed aerosol mounting cup | |
| WO1987000148A1 (en) | Aerosol container closure | |
| EP0088482A2 (en) | Aerosol container closures | |
| GB2208308A (en) | Mounting cup for aerosol containers | |
| EP0375727B1 (en) | Improved aerosol container closure | |
| WO1999046183A1 (en) | Gasketed aerosol mounting cup |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |