CA1117901A - Container - Google Patents
ContainerInfo
- Publication number
- CA1117901A CA1117901A CA000378178A CA378178A CA1117901A CA 1117901 A CA1117901 A CA 1117901A CA 000378178 A CA000378178 A CA 000378178A CA 378178 A CA378178 A CA 378178A CA 1117901 A CA1117901 A CA 1117901A
- Authority
- CA
- Canada
- Prior art keywords
- cap
- neck
- grooves
- spaced
- skirt
- 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
Landscapes
- Closures For Containers (AREA)
Abstract
ABSTRACT
A plastic cap is adapted for use with a bottle neck having two spaced grooves formed in the outer surface thereof the upper one of said grooves being spaced from the top edge of the neck so as to define smooth sealing surfaces above, between and below said grooves. The cap has a pair of inwardly directed circumferential beads formed on an inner surface of a thin-walled skirt that depends from a disc-shaped top of the cap. The beads are positioned so that they fit in the grooves when the cap is in place on the neck and form an interference fit with the edges of the grooves to prevent inadvertent removal of the cap. The upper groove is spaced from the upper edge of the neck and the lower groove is spaced from the body portion so that the neck is divided into three separate cylindrical outer surface portions having increasing diameters from the upper most surface portion to the lower most surface portion. Each of the grooves is partially defined by an annular surface intersecting the cylindrical outer surface portion farthest from the body portion at a right angle and a frustoconical surface intersecting the cylindrical outer surface portion closest to the body portion.
A plastic cap is adapted for use with a bottle neck having two spaced grooves formed in the outer surface thereof the upper one of said grooves being spaced from the top edge of the neck so as to define smooth sealing surfaces above, between and below said grooves. The cap has a pair of inwardly directed circumferential beads formed on an inner surface of a thin-walled skirt that depends from a disc-shaped top of the cap. The beads are positioned so that they fit in the grooves when the cap is in place on the neck and form an interference fit with the edges of the grooves to prevent inadvertent removal of the cap. The upper groove is spaced from the upper edge of the neck and the lower groove is spaced from the body portion so that the neck is divided into three separate cylindrical outer surface portions having increasing diameters from the upper most surface portion to the lower most surface portion. Each of the grooves is partially defined by an annular surface intersecting the cylindrical outer surface portion farthest from the body portion at a right angle and a frustoconical surface intersecting the cylindrical outer surface portion closest to the body portion.
Description
~ ~7~
This is a division of my co-pending Canadian Patent Application No. 276,072 filed April 13, 1977.
This invention relates to bottle closures and more particularly to a container such as a bottle having a neck structure adapted to receive a plastic cap with improved sealing capability.
Plastic caps for narrow necked plastic bottles are typically of the type disclosed in U.S. Patent No. 3,338,446.
The caps have a depending thin-walled skirt weakened approximately midway of its length with a circumferential score line so that the portion of the skirt below the score line may be torn off.
The cap has two beads which extend circumferentially around the inside of the cap. These beads fit into grooves in the bottle neck and prevent the cap from being removed from the container.
When both beads are in place the cap cannot be removed thereby preventing any tampering with the bottle contents. The lower bead is torn away when the lower skirt is removed. This then allows the cap to be easily pried over the upper bead to allow access to the contents. The upper bead remains with the cap thereby allowing the cap to be used repeatedly for reclosure until the contents of the bottle are exhausted.
There are several problems with the plastic caps of the prior art. A major problem is the splitting of the lower portion e of the cap when it is forced onto bottle neck. The score line ~ ;
for the tearaway lowex section extends diagonally through the lower portion of the cap skirt and terminates at its bottom edge.
This score line weakens the skirt and when pressure is exerted t , ': . ' ; ` '` ' ` ' ::`: ~ ',' ` ' 'I` ~` .' ` ' , . ~.' ' `, , ', ' ; ~ , .' `` ' . ` ' ' " . ' ':
` . ' ` ' .
- . ` ~' ' . "~ ~ ' ' ' ` ' 79~L
in an attempt to push the cap onto the bottle, the skirt often tears along the score line. sottles with torn skirts must be removed from the packaging line, the cap manually removed and the bottle and contents recycled. This tearing problem, referred to as cap splitting, is a substantial burden and significantly increases operating expenses.
Another problem with the prior art caps is the difficulty by the consumer in tearing the lower skirt from the cap. The problem is caused, in part, by the manufacturer when it strengthens the score line for the purpose of reducing cap "splitting" as discussed above. By strengthening the score line, the amount of force or "difficulty" required to tear the lower skirt from the cap is proportionately increased.
Another problem existent with the prior art caps is the loose fit of the cap onto the bottle. A tight fit between the cap and the bottle is essential for a good seal. Although the prior art caps could be made to fit more tightly on the bottle, such an improvement would result in a greater number of cap splitting. Thus an improvement in fit or seal is off-set by an ~;
increase in split caps and operating costs.
In an effort to eliminate the difficulties encountered with splitting caps a design as shown in U.S. Patent No. 3,927,784 was developed. This design eliminated cap splitting by elimina-ting the diagonal score line that extended to the bottom edge of the skirt and instead utilized two parallel circumferential score lines that defined a tear strip for separating the lower skirt from the upper skirt allowing the cap to be removed. This ; -2-t`
~'s ' ,.
- - : -................ - , , ~.
79~L
structure was fine for single use bottles but proved extremely costly for reusable bottles since the lower skirt portion had to be manually removed prior to reuse substantially increasing operating cost.
Since a good seal is required between the cap and the bottle, the prior ar~ devices used tight fltting beads that com-pletely filled the groove and formed a hlgh pressure line contact type of seal about the groove. This type of seal made removal of the cap difficult and also added to the skirt splitting problem due to the interference between the larger bead and the widest portion of the neck structure.
A need thus exis~s for a ta~nper-proof cap which can be used repeatedly for reclosure, which can be inserted onto the bottles without cap splitting, which can be removed from the bottle by the consumer without great difficulty, which has a tight fit or good seal and which is relatively easy to produce and inexpensive to manufacture. Such a cap is disclosed and claimed in my above identified co-pending application.
SUMMARY OF THE INVENTION
The present invention provides a container, comprising: a body portion; a substant-ially cylindrical neck extending upwardly from the body to an upper edge said neck having a substantially cylindrical outer surface; a pair of spaced circumferential grooves formed in said outer surface of the neck, the upper one of said grooves being spaced from the upper edge of the neck and the lower one of said grooves being spaced from the body portion so that the neckis divided into three separate cylindricalouter surface portions . ~
~ -, .. ,.. , , , ~ ,~ :
' I
9~
having increasing diameters from the upper most surface portion to the lower most surface portion, each of said grooves being partially defined by an annular surface intersecting the cylindrical outer surface portion farthest from the body portion at a right angle and a frustoconical surface intersecting the cylindrical outer surface portion closest to the body portion.
A pair of spaced inwardly directed circumferential beads formed on the inner surface of the outer skirt of the cap are positioned to fit in the grooves of the container neck to form an interference fit with the groove edges thereby preventing inadvertent removal of the cap. The beads are formed so that they are small and do not fill the grooves thereby allowing full con-tact between the three sealing surfaces and the snugly fitting outer skirt. In this manner a large area of sealing surface is provided without the need for a high contact pressure, small area, seal as in the prior art.
DESCRIPTION OF T~IE DRAWING_ `:
Fig. 1 is a top view of a cap for use with a container constructed in accordance with the invention;
; 20 Fig. 2 is a side elevation of the cap of Fig. l;
Fig. 3 is a side elevation of a bottle neck constructed in accordance with the present invention;
Fig. 4 is a vertical section showing the cap of Fig. 2 on the neck of Fig. 3;
Fig. 5 is a partial side elevation of a cap and bottle neck showing partial tearing of the skirt~
79~
Cap 10 is preferably made from a thin, resilient and moderately flexible plastic material so that it may deform slightly to snap on and off a bottle neck. The plastic material is preferably polyethylene or polystyrene; however, many other plastics may be successfully used. The cap 10 is designed for use with a bottle neck 12, that has a specific configuration as shown most clearly in Figure 3. It is contemplated that the bottle and neck 12 will be made with thin-walls preferably of poly-carbonate which has ideal characteristics for reusable food con-tainers such as milk bottles. The polycarbonate bottle has the clarity of glass while being light weight and essentially unbreakable.
Referring to Figure 3 there is shown the preferred con-figuration of neck 12 which may basically be described as being cylindrical with two spaced grooves. More particularly however the base 14 of neck 12 extends upwardly from the bottle body 16 and has a cylindrical outer sealing surface 15 of a predetermined diameter. The entire inner surface 18 of the neck is a smooth cylindrical surface extending to an upper edge 20 having a flat annular surface. The base 14 merges into a first fructoconical surface 22 forming an angle of approximately 70 with a horizontal : plane and surface 22 merges into a second frustoconical surface 24 `~ forming an angle of approximately 30 with a horizontal plane.
n The second frustoconical surface 24 terminates at a cylindrical -' surface 26 which extends upwardly to an annular shoulder 28 that ~ extends outwardly to a second cylindrical sealing surface 30 that `~ extends upwardly and has a diameter slightly less than the diameter :. , ~ , i .; ~
.
' `
'' 9~
of surface 15. Surfaces 22, 24, 26 and 28 define a first groove 32 having a depth of approximately O.OA5 inch.
A second groove 34 is defined by frustoconical surfaces 36 and 38, cylindrical surface 40 and an annular shoulder 42 similar to surfaces 22, 24, 26 and 28. Groove 34 has a depth of approximately 0.040 inch and is spaced from groove 32 by second sealing surface 30. Annular shoulder 42 terminates in a third cylindrical sealing surface 44 that extends upwardly to the upper edge 20. The third cylindrical sealing surface 44 has a diameter that is slightly less than the diameter of surface 30.
Cap 10 has a flat disc top 46 with a depending outer cylindrical skirt 48 and a depending inner skirt 50. The inner skirt has outer surface 52 that terminates in a slight bevel 54 for ease of application of the cap 10 onto neck 12 of the bottle.
The space between the outer surface 52 of the inner skirt and the inner surface 56 of the outer skirt 48 is slightly less than the thickness of neck 12 so that surfaces 52 and 56 fit snugly against surfaces 18 and 44 respectively and thereby form sealing surfaces.
Outer skirt 48 has a length that is sufficient to extend belo~
groove 32 and over surface 15. Since surfaces 30 and 15 have increasing larger diameters the inner surface 56 of the cap fits snugly against each of these sealing surfaces so that a total of four large area sealing surfaces are provided, one on the inside of the neck and three on the outside.
Formed on surface 56 are two inwardly directed circum-ferential beads 58 and 60 of semicircular crossection. Said beads ` are disposed to fit in grooves 32 and 34 when the cap is in place :``
,: , . . .
7~
on the nec]c as shown in Figure 4. The shape of the beads is not critical; however, the size is important. The beads must be of such a size that they form an interference fit with shoulders 28 and 42 to prevent inadvertent removal of the cap from the bottle neck but the beads must be smaller than the ~rooves so that the grooves are not filled and the beads do not bottom out in the grooves. If the beads were to bottom out in the grooves the snug fit between surface 56 and surfaces 15, 30 and 44 would be broken and the seals would be ineffective. Thus, the beads only serve to lock the cap on, but do not serve any sealing function.
In this way large area low pressure sealing is facilitated and effective sealing can be realized without a tight fit that could lead to skirt splitting and make opening difficult.
To facilitate removal of the cap from the neck a finger hold 62 is molded as part of the cap. Finger hold 62 has a flat bottom 64 and a slanted top 66 and a rectangular shape in a hori-zontal plane. The finger hold 62 extends outwardly from the skirt 48 so that a user may press a thumb or finger against surface 62 to pry the cap off the neck.
When the cap is in place on the neck initial removal is difficult due to the interference fit between beads 58 and 60.and shoulders 28 and 42. In order to facilitate removal means are provided to remove the lower portion of skirt 48 including bead 58. An internal circumferential groove or score line 68 is formed in surface 56 between beads 58 and 60~ This groove could also be formed on the external surface of skirt 48 with the same result. ~ diagonal or spiral score line 70 is connected ~o score .~
, . .
' ' ` . , ,- ' ' .
' 79~
line 68 and extends downwardly to the lower edge 72 of skirt 48.
A tear tab 7~ is connected at one end to the lower edge 72 and extends horizontally around the edgewith a mid-portion of an upper side being connected to lower edge 72 by a horizontal score line 76. The other end of tear tab 74 is unconnected and has beads 78 formed on an inner surface to facilitate gripping the tab. When tab 74 is pulled upwardly and to the right as shown in Figure 5 the skirt 48 tears along the score lines 76, 70 and 68 so that the lower portion of skirt 48 including bead 58 is removed.
With the lower portion of the skirt removed, the cap may easily be pried off with slight pressure on surface 64 of finger hold 62.
- Due to the resilience of the cap material, the cap may easily be snapped back in place to protect unused contents.
Thus, there is provided a cap structure that in con-junction with a neck structure facilitates an excellent seal at low pressures so that cap application and removal is not difficult.
The cap has four large area sealing surfaces that provide the low pressure seal. Skirt splitting is avoided by the unique use of a horizontally disposed tear tab that functions to reinforce the skirt adjacent the score line and thereby prevent splltting of the skirt during capping. The cap has internal circumferential beads that fit in grooves to prevent inadvertent removal of the cap, but said beads are of such a size so that they do not bottom in the groove thereby allowing full engagement over the large area sealing surfaces. The tear tab is also positioned to be torn by pulling to the right which is more convenient for most people.
- ;",: ", :
. . . . .::
.. . . ;. .. :: .
., ., :"
', ' . , ''
This is a division of my co-pending Canadian Patent Application No. 276,072 filed April 13, 1977.
This invention relates to bottle closures and more particularly to a container such as a bottle having a neck structure adapted to receive a plastic cap with improved sealing capability.
Plastic caps for narrow necked plastic bottles are typically of the type disclosed in U.S. Patent No. 3,338,446.
The caps have a depending thin-walled skirt weakened approximately midway of its length with a circumferential score line so that the portion of the skirt below the score line may be torn off.
The cap has two beads which extend circumferentially around the inside of the cap. These beads fit into grooves in the bottle neck and prevent the cap from being removed from the container.
When both beads are in place the cap cannot be removed thereby preventing any tampering with the bottle contents. The lower bead is torn away when the lower skirt is removed. This then allows the cap to be easily pried over the upper bead to allow access to the contents. The upper bead remains with the cap thereby allowing the cap to be used repeatedly for reclosure until the contents of the bottle are exhausted.
There are several problems with the plastic caps of the prior art. A major problem is the splitting of the lower portion e of the cap when it is forced onto bottle neck. The score line ~ ;
for the tearaway lowex section extends diagonally through the lower portion of the cap skirt and terminates at its bottom edge.
This score line weakens the skirt and when pressure is exerted t , ': . ' ; ` '` ' ` ' ::`: ~ ',' ` ' 'I` ~` .' ` ' , . ~.' ' `, , ', ' ; ~ , .' `` ' . ` ' ' " . ' ':
` . ' ` ' .
- . ` ~' ' . "~ ~ ' ' ' ` ' 79~L
in an attempt to push the cap onto the bottle, the skirt often tears along the score line. sottles with torn skirts must be removed from the packaging line, the cap manually removed and the bottle and contents recycled. This tearing problem, referred to as cap splitting, is a substantial burden and significantly increases operating expenses.
Another problem with the prior art caps is the difficulty by the consumer in tearing the lower skirt from the cap. The problem is caused, in part, by the manufacturer when it strengthens the score line for the purpose of reducing cap "splitting" as discussed above. By strengthening the score line, the amount of force or "difficulty" required to tear the lower skirt from the cap is proportionately increased.
Another problem existent with the prior art caps is the loose fit of the cap onto the bottle. A tight fit between the cap and the bottle is essential for a good seal. Although the prior art caps could be made to fit more tightly on the bottle, such an improvement would result in a greater number of cap splitting. Thus an improvement in fit or seal is off-set by an ~;
increase in split caps and operating costs.
In an effort to eliminate the difficulties encountered with splitting caps a design as shown in U.S. Patent No. 3,927,784 was developed. This design eliminated cap splitting by elimina-ting the diagonal score line that extended to the bottom edge of the skirt and instead utilized two parallel circumferential score lines that defined a tear strip for separating the lower skirt from the upper skirt allowing the cap to be removed. This ; -2-t`
~'s ' ,.
- - : -................ - , , ~.
79~L
structure was fine for single use bottles but proved extremely costly for reusable bottles since the lower skirt portion had to be manually removed prior to reuse substantially increasing operating cost.
Since a good seal is required between the cap and the bottle, the prior ar~ devices used tight fltting beads that com-pletely filled the groove and formed a hlgh pressure line contact type of seal about the groove. This type of seal made removal of the cap difficult and also added to the skirt splitting problem due to the interference between the larger bead and the widest portion of the neck structure.
A need thus exis~s for a ta~nper-proof cap which can be used repeatedly for reclosure, which can be inserted onto the bottles without cap splitting, which can be removed from the bottle by the consumer without great difficulty, which has a tight fit or good seal and which is relatively easy to produce and inexpensive to manufacture. Such a cap is disclosed and claimed in my above identified co-pending application.
SUMMARY OF THE INVENTION
The present invention provides a container, comprising: a body portion; a substant-ially cylindrical neck extending upwardly from the body to an upper edge said neck having a substantially cylindrical outer surface; a pair of spaced circumferential grooves formed in said outer surface of the neck, the upper one of said grooves being spaced from the upper edge of the neck and the lower one of said grooves being spaced from the body portion so that the neckis divided into three separate cylindricalouter surface portions . ~
~ -, .. ,.. , , , ~ ,~ :
' I
9~
having increasing diameters from the upper most surface portion to the lower most surface portion, each of said grooves being partially defined by an annular surface intersecting the cylindrical outer surface portion farthest from the body portion at a right angle and a frustoconical surface intersecting the cylindrical outer surface portion closest to the body portion.
A pair of spaced inwardly directed circumferential beads formed on the inner surface of the outer skirt of the cap are positioned to fit in the grooves of the container neck to form an interference fit with the groove edges thereby preventing inadvertent removal of the cap. The beads are formed so that they are small and do not fill the grooves thereby allowing full con-tact between the three sealing surfaces and the snugly fitting outer skirt. In this manner a large area of sealing surface is provided without the need for a high contact pressure, small area, seal as in the prior art.
DESCRIPTION OF T~IE DRAWING_ `:
Fig. 1 is a top view of a cap for use with a container constructed in accordance with the invention;
; 20 Fig. 2 is a side elevation of the cap of Fig. l;
Fig. 3 is a side elevation of a bottle neck constructed in accordance with the present invention;
Fig. 4 is a vertical section showing the cap of Fig. 2 on the neck of Fig. 3;
Fig. 5 is a partial side elevation of a cap and bottle neck showing partial tearing of the skirt~
79~
Cap 10 is preferably made from a thin, resilient and moderately flexible plastic material so that it may deform slightly to snap on and off a bottle neck. The plastic material is preferably polyethylene or polystyrene; however, many other plastics may be successfully used. The cap 10 is designed for use with a bottle neck 12, that has a specific configuration as shown most clearly in Figure 3. It is contemplated that the bottle and neck 12 will be made with thin-walls preferably of poly-carbonate which has ideal characteristics for reusable food con-tainers such as milk bottles. The polycarbonate bottle has the clarity of glass while being light weight and essentially unbreakable.
Referring to Figure 3 there is shown the preferred con-figuration of neck 12 which may basically be described as being cylindrical with two spaced grooves. More particularly however the base 14 of neck 12 extends upwardly from the bottle body 16 and has a cylindrical outer sealing surface 15 of a predetermined diameter. The entire inner surface 18 of the neck is a smooth cylindrical surface extending to an upper edge 20 having a flat annular surface. The base 14 merges into a first fructoconical surface 22 forming an angle of approximately 70 with a horizontal : plane and surface 22 merges into a second frustoconical surface 24 `~ forming an angle of approximately 30 with a horizontal plane.
n The second frustoconical surface 24 terminates at a cylindrical -' surface 26 which extends upwardly to an annular shoulder 28 that ~ extends outwardly to a second cylindrical sealing surface 30 that `~ extends upwardly and has a diameter slightly less than the diameter :. , ~ , i .; ~
.
' `
'' 9~
of surface 15. Surfaces 22, 24, 26 and 28 define a first groove 32 having a depth of approximately O.OA5 inch.
A second groove 34 is defined by frustoconical surfaces 36 and 38, cylindrical surface 40 and an annular shoulder 42 similar to surfaces 22, 24, 26 and 28. Groove 34 has a depth of approximately 0.040 inch and is spaced from groove 32 by second sealing surface 30. Annular shoulder 42 terminates in a third cylindrical sealing surface 44 that extends upwardly to the upper edge 20. The third cylindrical sealing surface 44 has a diameter that is slightly less than the diameter of surface 30.
Cap 10 has a flat disc top 46 with a depending outer cylindrical skirt 48 and a depending inner skirt 50. The inner skirt has outer surface 52 that terminates in a slight bevel 54 for ease of application of the cap 10 onto neck 12 of the bottle.
The space between the outer surface 52 of the inner skirt and the inner surface 56 of the outer skirt 48 is slightly less than the thickness of neck 12 so that surfaces 52 and 56 fit snugly against surfaces 18 and 44 respectively and thereby form sealing surfaces.
Outer skirt 48 has a length that is sufficient to extend belo~
groove 32 and over surface 15. Since surfaces 30 and 15 have increasing larger diameters the inner surface 56 of the cap fits snugly against each of these sealing surfaces so that a total of four large area sealing surfaces are provided, one on the inside of the neck and three on the outside.
Formed on surface 56 are two inwardly directed circum-ferential beads 58 and 60 of semicircular crossection. Said beads ` are disposed to fit in grooves 32 and 34 when the cap is in place :``
,: , . . .
7~
on the nec]c as shown in Figure 4. The shape of the beads is not critical; however, the size is important. The beads must be of such a size that they form an interference fit with shoulders 28 and 42 to prevent inadvertent removal of the cap from the bottle neck but the beads must be smaller than the ~rooves so that the grooves are not filled and the beads do not bottom out in the grooves. If the beads were to bottom out in the grooves the snug fit between surface 56 and surfaces 15, 30 and 44 would be broken and the seals would be ineffective. Thus, the beads only serve to lock the cap on, but do not serve any sealing function.
In this way large area low pressure sealing is facilitated and effective sealing can be realized without a tight fit that could lead to skirt splitting and make opening difficult.
To facilitate removal of the cap from the neck a finger hold 62 is molded as part of the cap. Finger hold 62 has a flat bottom 64 and a slanted top 66 and a rectangular shape in a hori-zontal plane. The finger hold 62 extends outwardly from the skirt 48 so that a user may press a thumb or finger against surface 62 to pry the cap off the neck.
When the cap is in place on the neck initial removal is difficult due to the interference fit between beads 58 and 60.and shoulders 28 and 42. In order to facilitate removal means are provided to remove the lower portion of skirt 48 including bead 58. An internal circumferential groove or score line 68 is formed in surface 56 between beads 58 and 60~ This groove could also be formed on the external surface of skirt 48 with the same result. ~ diagonal or spiral score line 70 is connected ~o score .~
, . .
' ' ` . , ,- ' ' .
' 79~
line 68 and extends downwardly to the lower edge 72 of skirt 48.
A tear tab 7~ is connected at one end to the lower edge 72 and extends horizontally around the edgewith a mid-portion of an upper side being connected to lower edge 72 by a horizontal score line 76. The other end of tear tab 74 is unconnected and has beads 78 formed on an inner surface to facilitate gripping the tab. When tab 74 is pulled upwardly and to the right as shown in Figure 5 the skirt 48 tears along the score lines 76, 70 and 68 so that the lower portion of skirt 48 including bead 58 is removed.
With the lower portion of the skirt removed, the cap may easily be pried off with slight pressure on surface 64 of finger hold 62.
- Due to the resilience of the cap material, the cap may easily be snapped back in place to protect unused contents.
Thus, there is provided a cap structure that in con-junction with a neck structure facilitates an excellent seal at low pressures so that cap application and removal is not difficult.
The cap has four large area sealing surfaces that provide the low pressure seal. Skirt splitting is avoided by the unique use of a horizontally disposed tear tab that functions to reinforce the skirt adjacent the score line and thereby prevent splltting of the skirt during capping. The cap has internal circumferential beads that fit in grooves to prevent inadvertent removal of the cap, but said beads are of such a size so that they do not bottom in the groove thereby allowing full engagement over the large area sealing surfaces. The tear tab is also positioned to be torn by pulling to the right which is more convenient for most people.
- ;",: ", :
. . . . .::
.. . . ;. .. :: .
., ., :"
', ' . , ''
Claims
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A container, comprising:
a body portion;
a substantially cylindrical neck extending upwardly from the body to an upper edge said neck having a substantially cylindrical outer surface;
a pair of spaced circumferential grooves formed in said outer surface of the neck, the upper one of said grooves being spaced from the upper edge of the neck and the lower one of said grooves being spaced from the body portion so that the neck is divided into three separate cylindrical outer surface portions having increasing diameters from the upper most surface portion to the lower most surface portion, each of said grooves being partially defined by an annular surface inter-secting the cylindrical outer surface portion farthest from the body portion at a right angle and a frustoconical surface intersecting the cylindrical outer surface portion closest to the body portion.
a body portion;
a substantially cylindrical neck extending upwardly from the body to an upper edge said neck having a substantially cylindrical outer surface;
a pair of spaced circumferential grooves formed in said outer surface of the neck, the upper one of said grooves being spaced from the upper edge of the neck and the lower one of said grooves being spaced from the body portion so that the neck is divided into three separate cylindrical outer surface portions having increasing diameters from the upper most surface portion to the lower most surface portion, each of said grooves being partially defined by an annular surface inter-secting the cylindrical outer surface portion farthest from the body portion at a right angle and a frustoconical surface intersecting the cylindrical outer surface portion closest to the body portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000378178A CA1117901A (en) | 1976-06-11 | 1981-05-22 | Container |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US695,266 | 1976-06-11 | ||
| US05/695,266 US4037746A (en) | 1976-06-11 | 1976-06-11 | Plastic cap and bottle neck |
| CA276,072A CA1113887A (en) | 1976-06-11 | 1977-04-13 | Plastic cap and bottle neck |
| CA000378178A CA1117901A (en) | 1976-06-11 | 1981-05-22 | Container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1117901A true CA1117901A (en) | 1982-02-09 |
Family
ID=27165023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000378178A Expired CA1117901A (en) | 1976-06-11 | 1981-05-22 | Container |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1117901A (en) |
-
1981
- 1981-05-22 CA CA000378178A patent/CA1117901A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |