CA1081166A - Dispenser closure having distortable diaphragm seal - Google Patents
Dispenser closure having distortable diaphragm sealInfo
- Publication number
- CA1081166A CA1081166A CA244,112A CA244112A CA1081166A CA 1081166 A CA1081166 A CA 1081166A CA 244112 A CA244112 A CA 244112A CA 1081166 A CA1081166 A CA 1081166A
- Authority
- CA
- Canada
- Prior art keywords
- spout
- peripheral flange
- transverse wall
- protrusion
- dispenser closure
- 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
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
- B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
- B65D47/2025—Flexible bung-type elements
Abstract
ABSTRACT OF THE DISCLOSURE
The invention relates to a dispenser closure formed of elastomeric material which is suitable for fitting to the discharge spout of a liquid container formed of a flexible film material such as polyethylene film and housed in a cardboard casing. The closure is provided with sealing means, the effectiveness of which is increased with increasing pressure within the container, and a diaphragmatic transverse wall positioned across the discharge spout, said transverse wall being provided with an outwardly directed protrusion which is manipulated with a toggle like action to distort the transverse wall and sealing means to permit liquid to flow from the container.
The invention relates to a dispenser closure formed of elastomeric material which is suitable for fitting to the discharge spout of a liquid container formed of a flexible film material such as polyethylene film and housed in a cardboard casing. The closure is provided with sealing means, the effectiveness of which is increased with increasing pressure within the container, and a diaphragmatic transverse wall positioned across the discharge spout, said transverse wall being provided with an outwardly directed protrusion which is manipulated with a toggle like action to distort the transverse wall and sealing means to permit liquid to flow from the container.
Description
BACKGROUND OF THE INVENTION
A dispenser closure widely used in Australia and other countries is described in Australian Patent Specification No. 446,218. Whilst generally satisfactory in use it has been known to leak particularly when the container is subjected to sudden shocks or a number of containers stacked one above the other. This particular dispenser closure suffers from the inherent disadvantage that .
effectiveness of the seal is dependen~ on the diaphrag- ~
matic transverse wall closure making sealing contact with a peripher~1 edge of the discharge spout which ~ ' . ~ , . ' .
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9ealing contact can be broken by increasing pressure within the container.
OBJECT OF THE INVENTION
-The object of the invention is to provide a dispenser closure which is substantially free of the disadvantages discussed above and in particular in which the effective-ness of the sealing means is increased with increasing pressure within the container.
DEFINITION OF THE IN~NTION
In one form the invention resides in a dispenser closure comprising a tubular spout to be connected at one end to a fluid container, a diaphragmatic transverse wall of elastomeric material mounted across the other end of the spout, said transverse wàll having a concave configur-ation which extends into said spout, an inwardly directed peripheral flange mounted on said transverse wall to sealingly engage with the inner tubular surface of said spout, a discharge outlet formed in a lower portion of said transverse wall providing communication between the exterior of said dispenser closure and a portion of the region of sealing engagement between the tubular surface of said spout and said peripheral flange, an outwardly directed protrusion extending from said transverse wall to be manipulated to distort the transverse wall and the portion of the peripheral flange adjacent the discharge outlet to cause fluid flow from the container through the discharge outlet.
1081~6 In another form the invention resides in a dispenser closure comprising a tubular spout to be connected at one end to a fluid container and diaphragmatic trans-verse wall of elastome-ric material mounted across the other end of the spout, said transverse wall having a concave configuration which extends into said spout, an inwardly directed peripheral flange mounted on said transverse wall to sealingly engage with the inner tubular surface of said~pout, a discharge outlet formed in a lower portion of said transverse wall providing communication between the exterior of said dispenser closure and a portion of the region of sealing engage-ment between the inner tubular surface of said spout and said peripheral flange, an outwardly directed protrusion extending outwardly from the central portion of said transverse wall, and a gusset extending from the , inner face of said transverse wall adjacent the position j of said protrusion and that portion of the peripheral flange adjacent the discharge outlet so that when an upward force is applied to said protrusion said portion of the peripheral flange adjacent the discharge outlet is lifted with a toggle action to cause fluid flow from the container through the discharge outlet.
' .
DESCRIPTION OF INVENTION
- The invention will be better understood in the light of the following description of the specific embodiments shown in the accompanyin; drawings wherein:
' ., :, ', ' ' ' . - '' : ~' ' ' ', '. ~ - . -~081166 Figure 1 is a sectional elevation of a first embodiment of the invention fitted to a discharge spout;
Figure 2 is a fragmentary sectional elevation of the first embodiment showing the closure in the open position;
Figure 3 is an end view of the first embodiment the left hand portion of which shows the closure in the closed position and the right hand portion of which shows the closure in the open position;
Figure 4 is an inverted fragmentary plan view of -the first embodiment showing the outlet;
Figure 5 is a sectional elevation of a second embod-iment showing the closure in the closed position;
Figure 6 is a fragmentary sectional elevation of the embodiment of figure 5 showing the closure in the open position;
Figure 7 is an enlarged fragmentary view of the portion of Figure 5 enclosed in broken lines to show the sealing action more clearly;
Figure 8 is a sectional elevation of a third embod-iment in the closed position;
Figure 9 is a fragmentary sectional elevation of the third embodiment showing the closure in the open posltion;
Figure 10 is an end view of the third embodiment, the left hand portion of which shows the closure in the closed position and the right hand portion of which shows the closure in the open position;
.
: , :
1081~616 Figure 11 is an inverted fragmentary plan view of the third embodiment showing the outlet;
Figure 12 is a sectional view of a fourth embodiment ~fitted to a dispensing spout; and Figure 13 is an end elevation of the embodiment, of ~igure 12.
The dispenser closure shown in Figures 1 to 4 of the drawings comprises a rigid tubular shaped spout member 41 provided at one end with an outwardly projecting flange 42 which can be sealed to wall 43 of a flexible plastic liquid container. (See Figure 1). The spout is provided with outwardly projecting flanges 44 adapted to engage the periphery of an opening in the wall of a cardboard container (not shown) in which the liquid container is positioned. A closure member 45 formed of a suitable elastomeric material is mounted on the other end of the spout and is provided with a skirt 46, the inner periphery of which is provided with an inwardly directed flange 47 adapted to engage with an outwardly directed flange 48 on the outer end of the spout. The wall member 50 of the closure member is concave so that it projects into the spout and is provided with a per-ipheral flange A which tapers towards its outer end to sealingly engage against the inner face of the tubular spout. The outer end of the spout 41 is provided with an inwardly directed rib F against which the peripheral flange A also seals to provide a secondary seal. ~he outer inner edge of the spout is tapered outwardly as indicated by reference 51 and a discharge outlet E is provided in the lower edge of the closure member to pro-vide communication between the exterior of the closure and the interior of the spout when the lower portion D
of the peripheral flange A is lifted from sealing engagement with the inner wall of the spout and rib as shown in Figure 2 and in the right hand portion of Figure 3. A protrusion or valve lift lever B projects outwardly from the central portion of the outer face of the transverse wall 50, a gusset 52 being provided on the inner face of the transverse wall 50 and the lower portion D of the peripheral flange A. A second gusset 53 is provided between the inner face of the transverse wall 50 and the upper portion of the peripheral flange A diametrically opposite to the lower portion D. When an upward pressure is applied by thumb and finger pressure on the protrusion B in the direction indicated by the arrow in Figure 2 the portion D of the peripheral flange is lifted from sealing engagement with the inner wall of the spout and thus fluid can flow through the discharge outlet E. The upper gusset 53 provides a fulcrum about which the protrusion B can be moved to facilitate the lifting of the portion D of the per-ipheral flange.
In the second embodiment shown in Figures 5, 6 and 7 of the drawings the dispenser closure comprises a rigid tubular shaped spout member 111 provided at one end with an outwardly projecting flange 112 which can be sealed to wall of a flexible plastic liquid container (not shown). The ~out which is shorter than the spout member 41 of the first embodiment is provided with out-wardly projecting flanges 114 adapted to engage the per-iphery of an opening in the wall of a cardboard container (not shown) in which the liquid container is positioned.
A closure member 115 formed of a suitable elastomeric material is mounted on the other end of the spout and is provided with a skirt 116 the inner periphery of which is provided with an in-wardly directed flange 117 to engage a groove 118 formed on the outside of the spout adjacent the outer end thereof. The leading inner edge of the flan~e 117 and the outer edge of the spout are chamfered to fac-ilitate the engagement of the flange 117 in the groove 118.
The wall 120 of the closure member is concave so that it projects into the spout and is provided with a peripheral flange (a) which tapers towards its outer end to sealingly engage against the inner face of the tubular spout. Pre-ferably the outer face of the flange (a) is provided with steps a1 and a2 which also sealingly engage against the inner face of the tubular spout which is best seen in ~igure 7 of the drawings. Because the flange (a) is an interference fit in t~ spout the outer face of the flange (a) also sealingly engages the inner edge 115a of the spout as is also best seen in Figure 7 of the drawings.
This multiple sealing action of the flange (a) ensures that leakage between the flange (a) and the inner face of the spout is substantially eliminated.
. , . ' , :
~ 08J 166 A discharge outlet (e) is provided in the lower edge of the closurè member and provides communication between the exterior of the closure and the interior of the spout when the lower portion (d) of the peripheral flange (a) is lifted from sealing engagement with the inner wall of the spout. A protrusion or v~lve lift lever b projects outwardly from the central portion of the outer face of the transverse wall 120, gusset 122 and 123 being provided on both sides of the protrusion, on the inside of the transverse wall 120. When an upward pressure is applied by thumb and finger pressure on the protrusion (b) the portion d of the peripheral flange a is lifted from seal-ing engagement with the inner wall of the spout and thus fluid can flow 'hrough the discharge outlet (e). ~he "toggle" action ensures positive operation of the closure whilst the peripheral flange ensures an effective seal against leakage of the contents.
The dispensure closure shown in Figures 8 to 11 is sim-ilar in some respects to those shown in ~igures 1 to 4 and 5 to 7 and comprises a rigid tubular shaped spout member 241 provided at one end with an outwardly projec-ting flange 242 which can be sealed to wall 243 of a flexible plastic liquid container. ~he spout is pro-vided with outwardly projecting flanges 244 adapted to engage the periphery of an opening in the wall of a cardboard container (not shown) in which the liquid container is positioned. A closure member 245 formed of a suitable elastomeric material is mounted on the _g_ ~08il66 other end of the spout and is provided with a skirt 246, the inner periphery of which i8 provided with an inwardly directed flange 247 adapted to engage with an outwardly directed flange 248 on the outer end of the spout. The wall member 250 of the closure member is concave so that it projects into the spout and is provided with a peripheral flange 2A which tapers towards its outer end to sealingly engage against the inner face of the.tubular spout. The outer inner edge of the spout is tapered outwardly as indicated by reference 251 and a discharge outlet 2~ is provided in the lower edge of the closure member to provide communication between the exterior of the closure and the interior of the spout when.the lower portion 2~ ~f-the peripheral flange 2A is lifted from sealing engagement with the inner wall of the spout as shown in Figure 9 and in the right hand portion of ~igure 10. A protrusion or valve lift lever 2B projects outwardly from the central portion of the outer face of the transverse wall 250, a gusset 252 being provided on the inner face of the transverse wall 250 and the lower portion 2D of the peripheral flange 2A. A second gusset 253 is provided between the inner face of the transverse wall 250 and the upper portion of the per-ipheral flange 2Adiametrically opposite to the lower portion 2D. When an upward pressure is applied by thumb and finger pressure on the protrusion 2B in the direction indicated by the arrow in Figure 9 the portion 2D of the peripheral flange is lifted from sealing engagement with , .
- ~08~16~;
the inner wall of the spout and thus M uid can flow through the discharge outlet 2E. The upper gusset 253 provides a fulcrum about which the protrusion 2B
can be moved to facilitate the lifting of the portion
A dispenser closure widely used in Australia and other countries is described in Australian Patent Specification No. 446,218. Whilst generally satisfactory in use it has been known to leak particularly when the container is subjected to sudden shocks or a number of containers stacked one above the other. This particular dispenser closure suffers from the inherent disadvantage that .
effectiveness of the seal is dependen~ on the diaphrag- ~
matic transverse wall closure making sealing contact with a peripher~1 edge of the discharge spout which ~ ' . ~ , . ' .
. . ~ ~' ' ' ', . ' ,,, . ' . , ~
,.. ' ' , ' , ' . ' ' ' ' ' ' , ', . ' ' " "
, ' , ,. ' ~ ' ' , ~ .:
. ' : : ' .
' .. ,, . . . , , , ' .. , ', , , ., ' ' . - ' - ' ', . ' ., : . ' - . ' .
,' . ' '. . ' ., , , . ~' . , .
9ealing contact can be broken by increasing pressure within the container.
OBJECT OF THE INVENTION
-The object of the invention is to provide a dispenser closure which is substantially free of the disadvantages discussed above and in particular in which the effective-ness of the sealing means is increased with increasing pressure within the container.
DEFINITION OF THE IN~NTION
In one form the invention resides in a dispenser closure comprising a tubular spout to be connected at one end to a fluid container, a diaphragmatic transverse wall of elastomeric material mounted across the other end of the spout, said transverse wàll having a concave configur-ation which extends into said spout, an inwardly directed peripheral flange mounted on said transverse wall to sealingly engage with the inner tubular surface of said spout, a discharge outlet formed in a lower portion of said transverse wall providing communication between the exterior of said dispenser closure and a portion of the region of sealing engagement between the tubular surface of said spout and said peripheral flange, an outwardly directed protrusion extending from said transverse wall to be manipulated to distort the transverse wall and the portion of the peripheral flange adjacent the discharge outlet to cause fluid flow from the container through the discharge outlet.
1081~6 In another form the invention resides in a dispenser closure comprising a tubular spout to be connected at one end to a fluid container and diaphragmatic trans-verse wall of elastome-ric material mounted across the other end of the spout, said transverse wall having a concave configuration which extends into said spout, an inwardly directed peripheral flange mounted on said transverse wall to sealingly engage with the inner tubular surface of said~pout, a discharge outlet formed in a lower portion of said transverse wall providing communication between the exterior of said dispenser closure and a portion of the region of sealing engage-ment between the inner tubular surface of said spout and said peripheral flange, an outwardly directed protrusion extending outwardly from the central portion of said transverse wall, and a gusset extending from the , inner face of said transverse wall adjacent the position j of said protrusion and that portion of the peripheral flange adjacent the discharge outlet so that when an upward force is applied to said protrusion said portion of the peripheral flange adjacent the discharge outlet is lifted with a toggle action to cause fluid flow from the container through the discharge outlet.
' .
DESCRIPTION OF INVENTION
- The invention will be better understood in the light of the following description of the specific embodiments shown in the accompanyin; drawings wherein:
' ., :, ', ' ' ' . - '' : ~' ' ' ', '. ~ - . -~081166 Figure 1 is a sectional elevation of a first embodiment of the invention fitted to a discharge spout;
Figure 2 is a fragmentary sectional elevation of the first embodiment showing the closure in the open position;
Figure 3 is an end view of the first embodiment the left hand portion of which shows the closure in the closed position and the right hand portion of which shows the closure in the open position;
Figure 4 is an inverted fragmentary plan view of -the first embodiment showing the outlet;
Figure 5 is a sectional elevation of a second embod-iment showing the closure in the closed position;
Figure 6 is a fragmentary sectional elevation of the embodiment of figure 5 showing the closure in the open position;
Figure 7 is an enlarged fragmentary view of the portion of Figure 5 enclosed in broken lines to show the sealing action more clearly;
Figure 8 is a sectional elevation of a third embod-iment in the closed position;
Figure 9 is a fragmentary sectional elevation of the third embodiment showing the closure in the open posltion;
Figure 10 is an end view of the third embodiment, the left hand portion of which shows the closure in the closed position and the right hand portion of which shows the closure in the open position;
.
: , :
1081~616 Figure 11 is an inverted fragmentary plan view of the third embodiment showing the outlet;
Figure 12 is a sectional view of a fourth embodiment ~fitted to a dispensing spout; and Figure 13 is an end elevation of the embodiment, of ~igure 12.
The dispenser closure shown in Figures 1 to 4 of the drawings comprises a rigid tubular shaped spout member 41 provided at one end with an outwardly projecting flange 42 which can be sealed to wall 43 of a flexible plastic liquid container. (See Figure 1). The spout is provided with outwardly projecting flanges 44 adapted to engage the periphery of an opening in the wall of a cardboard container (not shown) in which the liquid container is positioned. A closure member 45 formed of a suitable elastomeric material is mounted on the other end of the spout and is provided with a skirt 46, the inner periphery of which is provided with an inwardly directed flange 47 adapted to engage with an outwardly directed flange 48 on the outer end of the spout. The wall member 50 of the closure member is concave so that it projects into the spout and is provided with a per-ipheral flange A which tapers towards its outer end to sealingly engage against the inner face of the tubular spout. The outer end of the spout 41 is provided with an inwardly directed rib F against which the peripheral flange A also seals to provide a secondary seal. ~he outer inner edge of the spout is tapered outwardly as indicated by reference 51 and a discharge outlet E is provided in the lower edge of the closure member to pro-vide communication between the exterior of the closure and the interior of the spout when the lower portion D
of the peripheral flange A is lifted from sealing engagement with the inner wall of the spout and rib as shown in Figure 2 and in the right hand portion of Figure 3. A protrusion or valve lift lever B projects outwardly from the central portion of the outer face of the transverse wall 50, a gusset 52 being provided on the inner face of the transverse wall 50 and the lower portion D of the peripheral flange A. A second gusset 53 is provided between the inner face of the transverse wall 50 and the upper portion of the peripheral flange A diametrically opposite to the lower portion D. When an upward pressure is applied by thumb and finger pressure on the protrusion B in the direction indicated by the arrow in Figure 2 the portion D of the peripheral flange is lifted from sealing engagement with the inner wall of the spout and thus fluid can flow through the discharge outlet E. The upper gusset 53 provides a fulcrum about which the protrusion B can be moved to facilitate the lifting of the portion D of the per-ipheral flange.
In the second embodiment shown in Figures 5, 6 and 7 of the drawings the dispenser closure comprises a rigid tubular shaped spout member 111 provided at one end with an outwardly projecting flange 112 which can be sealed to wall of a flexible plastic liquid container (not shown). The ~out which is shorter than the spout member 41 of the first embodiment is provided with out-wardly projecting flanges 114 adapted to engage the per-iphery of an opening in the wall of a cardboard container (not shown) in which the liquid container is positioned.
A closure member 115 formed of a suitable elastomeric material is mounted on the other end of the spout and is provided with a skirt 116 the inner periphery of which is provided with an in-wardly directed flange 117 to engage a groove 118 formed on the outside of the spout adjacent the outer end thereof. The leading inner edge of the flan~e 117 and the outer edge of the spout are chamfered to fac-ilitate the engagement of the flange 117 in the groove 118.
The wall 120 of the closure member is concave so that it projects into the spout and is provided with a peripheral flange (a) which tapers towards its outer end to sealingly engage against the inner face of the tubular spout. Pre-ferably the outer face of the flange (a) is provided with steps a1 and a2 which also sealingly engage against the inner face of the tubular spout which is best seen in ~igure 7 of the drawings. Because the flange (a) is an interference fit in t~ spout the outer face of the flange (a) also sealingly engages the inner edge 115a of the spout as is also best seen in Figure 7 of the drawings.
This multiple sealing action of the flange (a) ensures that leakage between the flange (a) and the inner face of the spout is substantially eliminated.
. , . ' , :
~ 08J 166 A discharge outlet (e) is provided in the lower edge of the closurè member and provides communication between the exterior of the closure and the interior of the spout when the lower portion (d) of the peripheral flange (a) is lifted from sealing engagement with the inner wall of the spout. A protrusion or v~lve lift lever b projects outwardly from the central portion of the outer face of the transverse wall 120, gusset 122 and 123 being provided on both sides of the protrusion, on the inside of the transverse wall 120. When an upward pressure is applied by thumb and finger pressure on the protrusion (b) the portion d of the peripheral flange a is lifted from seal-ing engagement with the inner wall of the spout and thus fluid can flow 'hrough the discharge outlet (e). ~he "toggle" action ensures positive operation of the closure whilst the peripheral flange ensures an effective seal against leakage of the contents.
The dispensure closure shown in Figures 8 to 11 is sim-ilar in some respects to those shown in ~igures 1 to 4 and 5 to 7 and comprises a rigid tubular shaped spout member 241 provided at one end with an outwardly projec-ting flange 242 which can be sealed to wall 243 of a flexible plastic liquid container. ~he spout is pro-vided with outwardly projecting flanges 244 adapted to engage the periphery of an opening in the wall of a cardboard container (not shown) in which the liquid container is positioned. A closure member 245 formed of a suitable elastomeric material is mounted on the _g_ ~08il66 other end of the spout and is provided with a skirt 246, the inner periphery of which i8 provided with an inwardly directed flange 247 adapted to engage with an outwardly directed flange 248 on the outer end of the spout. The wall member 250 of the closure member is concave so that it projects into the spout and is provided with a peripheral flange 2A which tapers towards its outer end to sealingly engage against the inner face of the.tubular spout. The outer inner edge of the spout is tapered outwardly as indicated by reference 251 and a discharge outlet 2~ is provided in the lower edge of the closure member to provide communication between the exterior of the closure and the interior of the spout when.the lower portion 2~ ~f-the peripheral flange 2A is lifted from sealing engagement with the inner wall of the spout as shown in Figure 9 and in the right hand portion of ~igure 10. A protrusion or valve lift lever 2B projects outwardly from the central portion of the outer face of the transverse wall 250, a gusset 252 being provided on the inner face of the transverse wall 250 and the lower portion 2D of the peripheral flange 2A. A second gusset 253 is provided between the inner face of the transverse wall 250 and the upper portion of the per-ipheral flange 2Adiametrically opposite to the lower portion 2D. When an upward pressure is applied by thumb and finger pressure on the protrusion 2B in the direction indicated by the arrow in Figure 9 the portion 2D of the peripheral flange is lifted from sealing engagement with , .
- ~08~16~;
the inner wall of the spout and thus M uid can flow through the discharge outlet 2E. The upper gusset 253 provides a fulcrum about which the protrusion 2B
can be moved to facilitate the lifting of the portion
2~ of the peripheral flange.
.
The dispenser closure of the embodiment shown in ~igures 12 and 13 comprises rigid tubular shaped spout member 311. ~lange 313 is provided at one end for fixing by suitable means to a flexible plastic liquid storage container. Flanges315 on the spout are intended for the mounting of ~ackagi~g to the spout, the packaging being intended to support and protect the flexible plastic container, A closure member 317 is mounted to the other end of the spout member 311. lhe closure member 317 is formed from a suitable plastic material having elasto-meric properties. The closure member comprises a wall 319 transversely positioned across the spout having a sealing outer periphery which sealingly engages a lip 320 at the outer end of the spout. ~he wall 319 is concave in configuration and extends inwardly into the spout. A peripheral flange 322 is mounted on the wall such that it is in sealing contact with the inner surface of the spout3il. -~ discharge outlet 324 is provided in the lower edge of the closure member and provides communication between the exterior of the closure and the lower portion 32~ of-the region where the peripheral flange 322 sealingly engages the inner surface of the ~pout 311. The wall 319 has mounted at its lower portion above the discharge outlet 324 a protrusion 328. On ~ B
;,, the internal surface of the wall opposite the protrusion 328 the peripheral flange 322 and wall 319 are inter-connected by a rib portion 331 causing the lower portion of the peripheral flange 322 adjacent the discharge outlet to be rigidly attached to the wall 319. As a result of the mounting relationship of the protrusion 328 and rib portion 331, upon finger pressure on the pro-trusion pulling it outwardly (as shown by the broken lines) the wall ~ and peripheral flange 322 are de-formed causing fluid to flow from the spout through the discharge outlet. The dispenser closure of the embodiment is of a simple two piece construction which lends itself readily to manufacture and the filling and packaging of flexible plastic containers. The fitting of the closure member 317 to the spout 311 provides a fluid tight seal between the two components by virtue of the peripheral flange 322. In addition upon the filling of the container to which the spout is attached fluid pressure on the rear of the wall ~ produces a radially outwardly directed force on the wall to further enhance the sealing around its edge to the spout.
The dispenser closures of the embodiments described above are particularly suitable for use on containers adapted to be filled with wine and are suitable for use with carbonated or sparkling wines and other carbonated beverages such as aerated waters and beer.
~OBlJ.66 In yet another embodiment the closure may be used for large sized containers for milk and like liquids which do not require to be dispensed in small quantities by eliminating the protrusions B (Figs. 1 to 4) or (b) (Figs. 5 to 7) or IB (Figs. 8 to 11) and 328 (Figs 12 and 13) and making provision for the wall ~Y~ (Figs. 1 to 4) or 250 (Figs. 8 to 11) to be removed by tearing or cutting to permit the contents of the container to be discharged.
.
The dispenser closure of the embodiment shown in ~igures 12 and 13 comprises rigid tubular shaped spout member 311. ~lange 313 is provided at one end for fixing by suitable means to a flexible plastic liquid storage container. Flanges315 on the spout are intended for the mounting of ~ackagi~g to the spout, the packaging being intended to support and protect the flexible plastic container, A closure member 317 is mounted to the other end of the spout member 311. lhe closure member 317 is formed from a suitable plastic material having elasto-meric properties. The closure member comprises a wall 319 transversely positioned across the spout having a sealing outer periphery which sealingly engages a lip 320 at the outer end of the spout. ~he wall 319 is concave in configuration and extends inwardly into the spout. A peripheral flange 322 is mounted on the wall such that it is in sealing contact with the inner surface of the spout3il. -~ discharge outlet 324 is provided in the lower edge of the closure member and provides communication between the exterior of the closure and the lower portion 32~ of-the region where the peripheral flange 322 sealingly engages the inner surface of the ~pout 311. The wall 319 has mounted at its lower portion above the discharge outlet 324 a protrusion 328. On ~ B
;,, the internal surface of the wall opposite the protrusion 328 the peripheral flange 322 and wall 319 are inter-connected by a rib portion 331 causing the lower portion of the peripheral flange 322 adjacent the discharge outlet to be rigidly attached to the wall 319. As a result of the mounting relationship of the protrusion 328 and rib portion 331, upon finger pressure on the pro-trusion pulling it outwardly (as shown by the broken lines) the wall ~ and peripheral flange 322 are de-formed causing fluid to flow from the spout through the discharge outlet. The dispenser closure of the embodiment is of a simple two piece construction which lends itself readily to manufacture and the filling and packaging of flexible plastic containers. The fitting of the closure member 317 to the spout 311 provides a fluid tight seal between the two components by virtue of the peripheral flange 322. In addition upon the filling of the container to which the spout is attached fluid pressure on the rear of the wall ~ produces a radially outwardly directed force on the wall to further enhance the sealing around its edge to the spout.
The dispenser closures of the embodiments described above are particularly suitable for use on containers adapted to be filled with wine and are suitable for use with carbonated or sparkling wines and other carbonated beverages such as aerated waters and beer.
~OBlJ.66 In yet another embodiment the closure may be used for large sized containers for milk and like liquids which do not require to be dispensed in small quantities by eliminating the protrusions B (Figs. 1 to 4) or (b) (Figs. 5 to 7) or IB (Figs. 8 to 11) and 328 (Figs 12 and 13) and making provision for the wall ~Y~ (Figs. 1 to 4) or 250 (Figs. 8 to 11) to be removed by tearing or cutting to permit the contents of the container to be discharged.
Claims (10)
1. A dispenser closure comprising a tubular spout to be connected at one end to a fluid container, and a diaphragmatic transverse wall of elastomeric material mounted across the other end of the spout, said transverse wall having a concave configuration which extends into said spout, an inwardly directed peripheral flange mounted on said transverse wall to sealingly engage with the inner tubular surface of said spout, a discharge outlet formed in a lower portion of said transverse wall providing communication between the exterior of said dispenser closure and a portion of the region of sealing engagement between the rubular surface of said spout and said peripheral flange, an outwardly directed protrusion extending from said transverse wall to be manipulated to distort the transverse wall and the portion of the peripheral flange adjacent the discharge outlet to cause fluid flow from the container through the discharge outlet.
2. A dispenser closure comprising a tubular spout to be connected at one end to a fluid container and diaphrag-matic transverse wall of elastomeric material mounted across the other end of the spout, said transverse wall having a concave configuration which extends into said spout, an inwardly directed peripheral flange mounted on said transverse wall to sealingly engage with the inner tubular surface of said spout a discharge outlet formed in a lower portion of said transverse wall providing communication between the exterior of said dispenser closure and a portion of the region of sealing engagement between the inner tubular surface of said spout and said peripheral flange, an outwardly directed protrusion extending outwardly from the central portion of said transverse wall, and a gusset extending from the inner face of said transverse wall adjacent the position of said protrusion and that portion of the peripheral flange adjacent the discharge outlet so that when an upward force is applied to said protrusion said portion of the peripheral flange adjacent the discharge outlet is lifted with a toggle action to cause fluid flow from the container through the discharge outlet.
3. A dispenser closure as claimed in claim 1 or 2 wherein the outer end of the spout is provided with an inwardly directed rib against which the inwardly directed peripheral flange seats to provide a secondary seal.
4. A dispenser closure as claimed in claim 2 wherein a second gusset is provided between the inner face of the transverse wall and the upper portion of the inwardly directed peripheral flange diametrically opposite the first gusset.
5. A dispenser closure as claimed in claim 1 or 2 wherein the outer inner edge of the spout is tapered outwardly.
6. A dispenser closure as claimed in claim 2 wherein a second gusset is provided between the inner face of transverse wall and the inwardly directed peripheral flange to form a continuation of the first gusset.
7. A dispenser closure as claimed in claim 1, 2 or 4 wherein the protrusion projects outwardly and upwardly and the internal surface of the wall opposite the protrusion and the peripheral flange are interconnected by a rib portion so that when a downward pressure is applied to the protrusion the peripheral flange connected to the rib portion is lifted out of sealing engagement with the inner face of the spout.
8. A dispenser closure as claimed in claim 1, 2 or 4, wherein the face of the peripheral flange in contact with the inner face of the spout is provided with one or more steps for increased sealing contact.
9. A dispenser closure as claimed in claim 6, wherein the protrusion projects outwardly and upwardly and the internal surface of the wall opposite the protrusion and the peripheral flange are interconnected by a rib portion so that when a downward pressure is applied to the protrusion the peripheral flange connected to the rib portion is lifted out of sealing engagement with the inner face of the spout.
10. A dispenser closure as claimed in claim 6, wherein the face of the peripheral flange in contact with the inner face of the spout is provided with one or more steps for increased sealing contact.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPC051075 | 1975-02-07 | ||
| AUPC142475 | 1975-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1081166A true CA1081166A (en) | 1980-07-08 |
Family
ID=25642077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA244,112A Expired CA1081166A (en) | 1975-02-07 | 1976-01-23 | Dispenser closure having distortable diaphragm seal |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US3972452A (en) |
| JP (1) | JPS5729351B2 (en) |
| AR (1) | AR205668A1 (en) |
| BR (1) | BR7600747A (en) |
| CA (1) | CA1081166A (en) |
| DE (1) | DE2602572A1 (en) |
| ES (1) | ES229853Y (en) |
| FR (1) | FR2300018A1 (en) |
| GB (1) | GB1522655A (en) |
| GR (1) | GR60332B (en) |
| IL (1) | IL48867A (en) |
| IN (1) | IN143871B (en) |
| IT (1) | IT1054990B (en) |
| MX (1) | MX143120A (en) |
| NL (1) | NL7600840A (en) |
| PH (1) | PH16368A (en) |
| SU (1) | SU606545A3 (en) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2469577A (en) * | 1976-05-28 | 1978-11-02 | Lindeman Holdings Ltd | Liquid dispensing tap |
| US4211348A (en) * | 1978-01-30 | 1980-07-08 | Scholle William R | Dispenser spigot |
| US4169548A (en) * | 1978-03-13 | 1979-10-02 | Liqui-Box Corporation | Flexible dispenser valve |
| US4355742A (en) * | 1979-02-05 | 1982-10-26 | Scholle Corporation | Dispenser spigot for viscous material |
| AU5511080A (en) * | 1979-02-19 | 1980-08-28 | W.A. Deutsher Pty Ltd | Tap |
| US4248362A (en) * | 1979-09-27 | 1981-02-03 | Welsh William C | Dispenser closure |
| DE2940700A1 (en) * | 1979-10-08 | 1981-04-16 | Kailis, Peter George, Wembley Downs | Dispenser closure with tubular spout - has elastomeric transverse wall extending across spout which can be distorted to allow liq. discharge |
| WO1983004082A1 (en) * | 1982-05-07 | 1983-11-24 | William Charles Welsh | Improved dispenser closure |
| US4444340A (en) * | 1982-05-27 | 1984-04-24 | Liqui-Box Corporation | Self-sealing dispensing valve and spout assembly |
| CA1240641A (en) * | 1983-10-27 | 1988-08-16 | Wrightcel Limited | Dispensing spigot |
| US4623077A (en) * | 1984-03-15 | 1986-11-18 | Owens-Illinois, Inc. | Dispensing closure valve |
| AU575460B2 (en) * | 1985-01-16 | 1988-07-28 | Richard Charles George Dark | Spigot valve held closed by snap fittings |
| US4621750A (en) * | 1985-04-12 | 1986-11-11 | The Meyer Company | Dispenser valve |
| US4706855A (en) * | 1986-08-04 | 1987-11-17 | Litwin Walter J | One-piece container closure of the dispensing type |
| US4711380A (en) * | 1986-08-18 | 1987-12-08 | Liqui-Box Corporation | Tamper-evident seal for a toggle-type dispensing valve |
| US4787538A (en) * | 1987-03-17 | 1988-11-29 | The Rel Corporation | Tap assembly |
| GB2219930B (en) * | 1988-06-17 | 1993-01-06 | Flashlites | Lids for drinking cups |
| JPH0642984Y2 (en) * | 1988-09-26 | 1994-11-09 | 凸版印刷株式会社 | Liquid container cap |
| US4938386A (en) * | 1989-01-18 | 1990-07-03 | The Meyer Company | Cup trip assembly |
| US5000359A (en) * | 1989-04-07 | 1991-03-19 | Scholle Corporation | Sealed spigot |
| US5299718A (en) * | 1993-06-01 | 1994-04-05 | Shwery Roy P | Bottle closures |
| US5402919A (en) * | 1994-06-01 | 1995-04-04 | Atkinson; Robert L. | Lever device to ease valve operation on liquid bag containers |
| US6003742A (en) * | 1997-12-30 | 1999-12-21 | Garcia; Daniel R. | Spigot actuating device |
| AUPP591998A0 (en) | 1998-09-15 | 1998-10-08 | Anthony Smith Australasia Pty Ltd | Closure |
| US7293676B2 (en) * | 2003-10-09 | 2007-11-13 | Scholle Corporation | Dispenser apparatus |
| ITBO20070764A1 (en) * | 2007-11-20 | 2009-05-21 | Carpigiani Group Ali Spa | MACHINE FOR THE PRODUCTION AND DISTRIBUTION OF FROZEN FOOD PRODUCTS SUCH AS GRANITE, SORBETS AND THE LIKE. |
| CN106185007A (en) * | 2016-08-22 | 2016-12-07 | 李红彪 | One simply pushes away pull lid structure |
| CN110621588B (en) * | 2017-03-23 | 2021-09-28 | 阿帕达弗赖翁有限公司 | Dispensing closure for a fluid container |
| WO2019156677A1 (en) | 2018-02-09 | 2019-08-15 | Aptargroup, Inc. | Dispensing closure for a container |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2075249A (en) * | 1935-11-23 | 1937-03-30 | Ralph W Wilson | Closure for containers |
| US2714475A (en) * | 1951-10-29 | 1955-08-02 | Richford Corp | Dispensing container for fluids |
| US3400866A (en) * | 1966-11-04 | 1968-09-10 | Lazzaro A. Fattori | Tap dispenser-closure with diaphragmic toggle |
-
1975
- 1975-10-30 GB GB44980/75A patent/GB1522655A/en not_active Expired
- 1975-10-31 US US05/627,649 patent/US3972452A/en not_active Expired - Lifetime
-
1976
- 1976-01-01 AR AR262179A patent/AR205668A1/en active
- 1976-01-16 IN IN94/CAL/76A patent/IN143871B/en unknown
- 1976-01-19 IL IL48867A patent/IL48867A/en unknown
- 1976-01-20 GR GR49820A patent/GR60332B/en unknown
- 1976-01-23 CA CA244,112A patent/CA1081166A/en not_active Expired
- 1976-01-23 DE DE19762602572 patent/DE2602572A1/en not_active Withdrawn
- 1976-01-26 IT IT19590/76A patent/IT1054990B/en active
- 1976-01-28 NL NL7600840A patent/NL7600840A/en not_active Application Discontinuation
- 1976-01-30 PH PH18027A patent/PH16368A/en unknown
- 1976-01-30 MX MX163356A patent/MX143120A/en unknown
- 1976-02-03 FR FR7602900A patent/FR2300018A1/en active Granted
- 1976-02-05 ES ES1976229853U patent/ES229853Y/en not_active Expired
- 1976-02-06 JP JP1214076A patent/JPS5729351B2/ja not_active Expired
- 1976-02-06 SU SU762319855A patent/SU606545A3/en active
- 1976-02-06 BR BR7600747A patent/BR7600747A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1522655A (en) | 1978-08-23 |
| SU606545A3 (en) | 1978-05-05 |
| IL48867A0 (en) | 1976-03-31 |
| FR2300018A1 (en) | 1976-09-03 |
| JPS51104985A (en) | 1976-09-17 |
| IL48867A (en) | 1978-07-31 |
| PH16368A (en) | 1983-09-14 |
| JPS5729351B2 (en) | 1982-06-22 |
| ES229853Y (en) | 1978-01-16 |
| IT1054990B (en) | 1981-11-30 |
| BR7600747A (en) | 1976-08-31 |
| NL7600840A (en) | 1976-08-10 |
| FR2300018B1 (en) | 1982-08-06 |
| MX143120A (en) | 1981-03-19 |
| GR60332B (en) | 1978-05-09 |
| ES229853U (en) | 1977-09-16 |
| DE2602572A1 (en) | 1976-08-19 |
| US3972452A (en) | 1976-08-03 |
| AR205668A1 (en) | 1976-05-21 |
| IN143871B (en) | 1978-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |