CN118877360B - Easy-open can lid basic cover and easy-open can lid - Google Patents
Easy-open can lid basic cover and easy-open can lid Download PDFInfo
- Publication number
- CN118877360B CN118877360B CN202411382818.4A CN202411382818A CN118877360B CN 118877360 B CN118877360 B CN 118877360B CN 202411382818 A CN202411382818 A CN 202411382818A CN 118877360 B CN118877360 B CN 118877360B
- Authority
- CN
- China
- Prior art keywords
- section
- arc
- lid
- straight line
- tangent
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D51/00—Closures not otherwise provided for
- B65D51/24—Closures not otherwise provided for combined or co-operating with auxiliary devices for non-closing purposes
-
- 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
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
本发明提供一种易开罐罐盖基本盖及易开罐罐盖，涉及包装容器技术领域。易开罐罐盖基本盖的横截面从周边至中心，依次为卷封区、过渡区、内凹段、圆弧壁段和中心面板，内凹段由周边至中心依次为第一圆弧段、第一直线段和第二圆弧段，第一圆弧段和过渡区相切，第一圆弧段和第一直线段相切，第一直线段和第二圆弧段相切；第一圆弧段的半径设为a，0.08mm≤a≤0.2mm；第二圆弧段的半径设为b，0.15mm≤b≤0.4mm；圆弧壁段由周边至中心依次为相切的第二直线段和第三圆弧段，第二直线段与第二圆弧段相切，第三圆弧段与中心面板相切；第三圆弧段的半径设为c，1.5mm≤c≤4mm。本发明的基本盖的屈服应力一致性较好，可以有效降低正压力下的破损率。
The present invention provides a basic cover of an easy-open can lid and an easy-open can lid, and relates to the technical field of packaging containers. The cross section of the basic cover of the easy-open can lid is, from the periphery to the center, a rolling sealing area, a transition area, a concave section, an arc wall section and a central panel in sequence, and the concave section is, from the periphery to the center, a first arc section, a first straight line section and a second arc section in sequence, the first arc section is tangent to the transition area, the first arc section is tangent to the first straight line section, and the first straight line section is tangent to the second arc section; the radius of the first arc section is set to a, 0.08mm≤a≤0.2mm; the radius of the second arc section is set to b, 0.15mm≤b≤0.4mm; the arc wall section is, from the periphery to the center, a tangent second straight line section and a third arc section in sequence, the second straight line section is tangent to the second arc section, and the third arc section is tangent to the central panel; the radius of the third arc section is set to c, 1.5mm≤c≤4mm. The yield stress consistency of the basic cover of the present invention is good, and the breakage rate under positive pressure can be effectively reduced.
Description
Technical Field
The invention belongs to the technical field of packaging containers, and relates to a basic cover of an easy-to-open can cover and an easy-to-open can cover.
Background
Easy open cans, such as two-piece cans and three-piece cans, have become a widely visible packaging container in everyday life. The interior of the easy-open can is usually filled with a liquid under a certain pressure, such as beer, beverage, etc., and the pressure in the can increases with the rise of weather, shaking during transportation, etc. As the thickness of easy-open cans is thinner and thinner, such as can lid thickness down to 0.208mm, higher demands are placed on the can lid for compression to achieve lower compression failure and safety. For example, under the action of the internal pressure of the tank, when the internal pressure exceeds the yield strength of the material, the tank cover is easy to bulge and deform and even break. In addition to replacing the original stainless steel material with an aluminum alloy material with higher strength and lower density, various prior art disclosures have reported improvements in can lid construction to achieve higher crush resistance. For example, chinese patent No. CN108438434a discloses a pressure-resistant basic cover, in which a sixth arc segment R6 and a second straight line segment L2 are added to the countersink, and reasonable dimensions of the fifth arc segment R5 and the sixth arc segment R6 are designed, and the technical characteristics such as the center position relationship of the fourth arc segment R4 and the fifth arc segment R5 reduce the probability of cracking to 0.05% -2.5% when the pressure resistance fails.
The inventors believe that existing easy open can lid constructions may be further optimized.
Disclosure of Invention
Because the thickness of the easy-open can cover is already made to be very thin, the easy-open can cover cannot be further thinned. Therefore, the structure of the can lid must be further designed and optimized. The inventor finds that, through a great deal of research, development, analysis and test, the consistency of the yield stress of the tank cover can be maintained, so that the pressure resistance of the tank cover can be improved, and the breakage rate when the pressure is increased can be reduced. Based on the above, the invention provides a basic cover of an easy-open can cover and the easy-open can cover.
The technical scheme of the invention is as follows:
the cross section of the basic cover is sequentially provided with a seaming area, a transition area, an inward concave section, an arc wall section and a central panel from the periphery to the center, wherein the inward concave section is sequentially provided with a first arc section, a first straight line section and a second arc section from the periphery to the center, the first arc section is tangential with the transition area, the first arc section is tangential with the first straight line section, and the first straight line section is tangential with the second arc section;
The radius of the first circular arc section is set to be a, and a is more than or equal to 0.08mm and less than or equal to 0.2mm;
The radius of the second circular arc section is set to be b, and b is more than or equal to 0.15mm and less than or equal to 0.4mm;
The arc wall section sequentially comprises a second straight line section and a third arc section which are tangent from the periphery to the center, the second straight line section is tangent with the second arc section, and the third arc section is tangent with the center panel;
the radius of the third arc section is set to be c, and c is more than or equal to 1.5mm and less than or equal to 4mm.
Preferably, the transition zone comprises a third straight line segment, which is tangential to the first circular arc segment.
Preferably, the included angle A1 between the first straight line segment and the horizontal direction is 2-15 °.
More preferably, the included angle A1 is 3-10 °.
Preferably, the value of a is 0.1 mm-0.17 mm.
Preferably, the value of b is 0.18 mm≤b≤0.35 mm.
Preferably, the included angle A2 between the second straight line segment and the vertical direction is 10-35 degrees.
More preferably, the included angle A2 is 13-28 °.
Preferably, the center of the third arc section is not lower than the lowest point of the concave part of the concave section in the horizontal direction.
An easy open can lid comprising the easy open can lid base lid of any one of the embodiments described above.
The invention has the beneficial effects that through the analysis of the stress distribution of the internal positive pressure of the tank cover and the common compression fracture mode of the tank cover, the tank cover structure capable of improving the consistency of yield stress is provided, and through arranging the left and right circular arcs with different circular arc radiuses at the concave section and arranging the circular arc sections with longer circular arc radiuses at the circular arc wall sections, the yield stress of different parts of the basic cover is more consistent, the stress effect of the internal positive pressure is more favorably resisted, the damage rate under high pressure is reduced, and the unbroken rate is lower.
Drawings
Fig. 1 is a partial schematic view of a cross section of a basic cover of example 1.
Fig. 2 is an enlarged schematic view of a curved block section in example 1.
Fig. 3 is a partial schematic cross-sectional view of the basic cover of example 1.
Detailed Description
The technical scheme of the invention is further illustrated and described through the following specific embodiments.
The term "horizontal direction" in the present invention is interpreted as a direction along the basic lid cross section and perpendicular to the middle axis of the can lid.
The term "vertical direction" in the present invention is interpreted as a direction parallel to the middle axis of the can lid. Upward, the surface of the can lid is away from the bottom of the can.
In order to improve the pressure resistance of the easy-open can cover and improve the uniformity dimension of yield stress of each part of the can cover, on one hand, the invention provides the basic cover of the easy-open can cover, wherein the cross section of the basic cover sequentially comprises a seaming area (1), a transition area (2), a concave section (3), an arc wall section (4) and a center panel (5) from the periphery to the center. The basic cover of the invention is improved on the basis of the basic cover of the prior art, the structures of the seaming area (1), the transition area (2) and the central panel (5) are not particularly limited, and the description of the prior art CN108438434A, CN106672390A, CN105408216A and the like can be referred to.
For the concave section (3), the concave section (3) sequentially comprises a first circular arc section (R1), a first straight line section (L1) and a second circular arc section (R2) from the periphery to the center, wherein the first circular arc section (R1) is tangential to the transition area (2), the first circular arc section (R1) is tangential to the first straight line section (L1), and the first straight line section (L1) is tangential to the second circular arc section (R2);
The radius of the first circular arc section (R1) is set to be a, and a is more than or equal to 0.08mm and less than or equal to 0.2mm;
The radius of the second arc section (R2) is b which is more than or equal to 0.15mm and less than or equal to 0.4mm;
The structure of the concave section (3) consists of a first circular arc section (R1) and a second circular arc section (R2), and the middle is connected by a first straight line section (L1). The inventors have found that failure of the easy open can lid under positive pressure occurs primarily in the transition section and the arcuate wall section, and in particular in the transition section, indicating that the yield stress of the transition section is relatively low in various locations throughout the can lid. According to the invention, through the structural design of the concave section (3), the yield stress of the transition region (2) is improved, the yield stress of the concave section (3) is not reduced, the consistency of the yield stress of each part of the basic cover is maintained, and the high-pressure breakage rate of the tank cover can be effectively reduced. In the invention, further, the radius of the first circular arc section (R1) is smaller than the radius of the second circular arc section (R2). For example, the value of a may be any one of or any value in between 0.08mm, 0.09mm, 0.10mm, 0.11mm, 0.12mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, 0.18mm, 0.20mm, etc., without particular limitation. For example, the value of b may be any value or any value in between 0.15mm、0.17mm、0.20mm、0.21mm、0.22mm、0.24mm、0.25mm、0.26mm、0.27mm、0.28mm、0.30mm、0.32mm、0.34mm、0.35mm、0.36mm、0.38mm、0.40mm or the like, without particular limitation.
The arc wall section (4) is designed as follows, the arc wall section (4) is a second straight line section (L2) and a third arc section (R3) which are tangent in sequence from the periphery to the center, the second straight line section (L2) is tangent with the second arc section (R2), and the third arc section (R3) is tangent with the center panel;
The radius of the third arc section (R3) is c, and c is more than or equal to 1.5mm and less than or equal to 4mm. For example, the value of c may be any value or any value in between 1.5mm、1.7mm、1.8mm、2.0mm、2.2mm、2.3mm、2.4mm、2.5mm、2.6mm、2.7mm、2.8mm、2.9mm、3.0mm、3.2mm、3.3mm、3.5mm、3.6mm、3.8mm、4.0mm or the like, without particular limitation. Further, the value of c may be 2-3mm.
The structural design of the concave section (3) and the circular arc wall section (4) and the transition region (2) form good integration, so that the yield stress of the circular arc wall section (4) is not reduced while the yield stress of the transition region (2) is improved, and the high-pressure damage rate of the tank cover is further effectively reduced.
In the invention, the transition zone (2) comprises a third straight line segment (L3), and the third straight line segment (L3) is tangential to the first circular arc segment (R1). By adopting the technical scheme, the continuity and smoothness of the connection of the transition zone (2) and the concave section (3) can be realized, and the reduction of yield stress is avoided.
In the invention, the included angle A1 between the first straight line section (L1) and the horizontal direction is 2-15 degrees. The first straight line section (L1) forms a certain included angle A1 with the horizontal direction, namely the second circular arc section (R2) deviates upwards relative to the first circular arc section (R1). For example, the angle A1 may be any one of or between any of 2 °,3 °,4 °,5 °,6 °,7 °,8 °,9 °, 10 °, 11 °, 12 °, 13 °, 14 °, 15 °, and the like, without particular limitation. Further, the included angle A1 is 3-10 degrees.
In the invention, the value of a is more than or equal to 0.1mm and less than or equal to 0.17mm. For example, the value of a may be any one of or between any of 0.10mm, 0.11mm, 0.12mm, 0.14mm, 0.15mm, 0.16mm, 0.17mm, etc., without particular limitation.
In the invention, the value of b is more than or equal to 0.18mm and less than or equal to 0.35mm. For example, the value of b may be any one of or between 0.18mm, 0.20mm, 0.21mm, 0.22mm, 0.24mm, 0.25mm, 0.26mm, 0.27mm, 0.28mm, 0.30mm, 0.32mm, 0.34mm, 0.35mm, etc., without particular limitation.
In the invention, the included angle A2 between the second straight line section (L2) and the vertical direction is 10-35 degrees. For example, the angle A2 may be any one of or any one of the values between 10 °,12 °, 13 °, 15 °, 16 °, 18 °, 19 °, 20 °, 22 °, 23 °, 24 °, 25 °, 26 °, 28 °, 29 °,30 °, 32 °, 33 °, 34 °, 35 °, and the like, without particular limitation. Further, the included angle A2 is 13-28 degrees.
In the invention, the center of the third arc section (R3) is not lower than the lowest point of the concave part of the concave section (3) in the horizontal direction.
In another aspect, the present invention also provides an easy open can end comprising the easy open can end base cover of any one of the embodiments described above. The easy-open can of the invention has higher yield stress and can reduce the breakage rate under positive pressure.
The technical scheme of the invention is further described and illustrated below according to various embodiments.
Example 1
Referring to fig. 1, the cross section of the basic cover of the can lid of the easy-open can is sequentially provided with a seaming area 1, a transition area 2, a concave section 3, an arc wall section 4 and a central panel 5 from the periphery to the center. The structures of the seaming area 1, the transition area 2 and the center panel 5 can refer to the description of the prior art CN106672390a, the seaming area 1, the transition area 2 and the center panel 5 in the present invention correspond to the can sealing area, the countersink and the center cover surface in the prior art CN106672390a respectively, that is, in the basic cover of the present invention, the seaming area sequentially includes, from the periphery to the center, a fourth arc segment R4 (corresponding to a first arc segment in CN106672390a, not shown in the drawing of the present embodiment), a fifth arc segment R5 (corresponding to a second arc segment in CN106672390a, not shown in the drawing of the present embodiment) and a sixth arc segment R6 (corresponding to a third arc segment in CN106672390a, not shown in the drawing of the present embodiment), R5 is tangent to R4 and R6 respectively, the transition area is formed by a fourth straight line segment L4 (corresponding to a first straight line segment in CN106672390a, not shown in the drawing of the present embodiment), a seventh arc segment R7 (corresponding to a first arc segment in CN106672390a, not shown in the drawing of the present embodiment), a fifth arc segment R5 (corresponding to a radius of the fourth arc segment in CN106672390a, not shown in the drawing of the present embodiment is equal to R4, not shown in the drawing of the fifth arc segment R5 is tangent to R6 in the fig. 5mm, and the radius of the fifth arc segment in the fig. 5 is equal to R5 mm is shown in the fig. 5 is shown in the drawing of the fig. 5 is in the fig. 5. The included angle between the external tangent line of L4 and R6 and the vertical direction is 12 degrees.
The concave section (3) sequentially comprises a first circular arc section R1, a first straight line section L1 and a second circular arc section R2 from the periphery to the center, wherein the first circular arc section R1 is tangent to the transition area 2, the first circular arc section R1 is tangent to the first straight line section L1, the first straight line section L1 is tangent to the second circular arc section R2, the radius a of the first circular arc section R1 is 0.12mm, and the radius b of the second circular arc section R2 is 0.23mm. The transition region 2 comprises a third straight line segment L3, one end of the third straight line segment L3 is tangent to the first circular arc segment R1, and the other end of the third straight line segment L3 is tangent to the eighth circular arc segment R8.
The arc wall section 4 sequentially comprises a second straight line section L2 and a third arc section R3 which are tangent from the periphery to the center, the second straight line section L2 is tangent to the second arc section R2, the third arc section R3 is tangent to the center panel, and the radius c of the third arc section R3 is 2mm. The center of the third arc segment R3 is not lower than the lowest point of the concave part of the concave segment 3 in the horizontal direction.
Referring to fig. 2, an included angle A1 between the first straight line segment L1 and the horizontal direction is 6 °, and an included angle A2 between the second straight line segment L2 and the vertical direction is 23 °.
The tank cover is made of 5182 aluminum alloy with the thickness of 0.208mm, and is prepared into two tanks, the tank body and the tank bottom are made of 3004 aluminum alloy with the thickness of 0.22mm. The can lid structure is the structure of the first embodiment of the prior art CN106672390a (denoted as prior art) and the structural design of the above embodiment 1 (denoted as the present invention), respectively, wherein the structures of the seaming area, the transition area, and the center panel are the same. The tank cover is manufactured into two tanks, and the two tanks are placed in an easy-open cover pressure-resistant detector CanNeed-AEBT-1000 for detection. The test conditions were 25℃and 55% humidity, and the pressure was increased to 0.7MPa. The breakage rate and bulge unbroken rate of 1000 two cans respectively were counted, the breakage rate of the can lid in the prior art was 75.4%, the residual can lid was bulge unbroken, and the breakage rate of the can lid of the invention was 1.47%, and the bulge unbroken rate of the can lid was 20.1%. The above data illustrates that the base cap of this embodiment has a higher yield stress.
Example 2
Referring to fig. 3, this embodiment is substantially the same as the basic cap structure of embodiment 1, except that the radius c of the third arc segment (R3) in fig. 3 is 2.8mm. According to the above-mentioned breakage rate test scheme, in this embodiment, the breakage rate of the two can lids is 1.82%, and the breakage rate of the two can lids is 25.8%, which indicates that the base lid of this embodiment has a higher yield stress.
As described above, the basic principles, main features and advantages of the present invention are shown and described. It will be appreciated by persons skilled in the art that the present invention is not limited to the embodiments described above, which are preferred embodiments of the present invention, and the scope of the invention is not limited thereto, i.e. equivalent changes and modifications as defined by the claims and the description herein should be made while remaining within the scope of the invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The basic cover of the can cover of the easy-to-open can is characterized in that the cross section of the basic cover sequentially comprises a seaming area (1), a transition area (2), a concave section (3), an arc wall section (4) and a central panel (5) from the periphery to the center, the concave section (3) sequentially comprises a first arc section (R1), a first straight line section (L1) and a second arc section (R2) from the periphery to the center, the first arc section (R1) is tangential with the transition area (2), the first arc section (R1) is tangential with the first straight line section (L1), and the first straight line section (L1) is tangential with the second arc section (R2);
the radius of the first circular arc section (R1) is set to a, a=0.12 mm;
The radius of the second arc section (R2) is set to b, b=0.23 mm;
The arc wall section (4) is sequentially provided with a second straight line section (L2) and a third arc section (R3) which are tangent from the periphery to the center, the second straight line section (L2) is tangent to the second arc section (R2), and the third arc section (R3) is tangent to the center panel (5);
the radius of the third arc segment (R3) is set to c, c=2mm.
2. The lid basic lid according to claim 1, characterized in that said transition zone (2) comprises a third rectilinear segment (L3), said third rectilinear segment (L3) being tangent to said first circular arc segment (R1).
3. The lid base of an easy open can end of claim 1, wherein the first line segment (L1) is at an angle A1 of 2-15 ° to the horizontal.
4. A basic lid for a can lid according to claim 3, wherein said included angle A1 is 3-10 °.
5. The lid base of an easy open can end of claim 1 wherein the second straight line segment (L2) is at an angle A2 of 10-35 ° to vertical.
6. The easy open can lid base lid of claim 5, wherein the included angle A2 is 13-28 °.
7. The basic lid of the can lid according to claim 1, wherein the center of the third circular arc section (R3) is not lower than the lowest point of the concave portion of the concave section (3) in the horizontal direction.
8. An easy open can lid comprising the easy open can lid base lid of any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411382818.4A CN118877360B (en) | 2024-09-30 | 2024-09-30 | Easy-open can lid basic cover and easy-open can lid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411382818.4A CN118877360B (en) | 2024-09-30 | 2024-09-30 | Easy-open can lid basic cover and easy-open can lid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118877360A CN118877360A (en) | 2024-11-01 |
| CN118877360B true CN118877360B (en) | 2025-06-17 |
Family
ID=93234647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411382818.4A Active CN118877360B (en) | 2024-09-30 | 2024-09-30 | Easy-open can lid basic cover and easy-open can lid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118877360B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809861A (en) * | 1980-01-16 | 1989-03-07 | American National Can Company | Buckle resistant can end |
| WO2003004716A2 (en) * | 2001-07-03 | 2003-01-16 | Container Development, Ltd. | Can shell and double-seamed can end |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7472800B2 (en) * | 2004-03-05 | 2009-01-06 | Rexam Beverage Can Company | Bottom profile for drawn and ironed can body |
| JP5468278B2 (en) * | 2009-03-17 | 2014-04-09 | ユニバーサル製缶株式会社 | Can lid |
| US9821928B2 (en) * | 2012-05-14 | 2017-11-21 | Rexam Beverage Can Company | Can end |
| CN106672390B (en) * | 2017-03-07 | 2018-07-13 | 苏州斯莱克精密设备股份有限公司 | Pressure-resistant basic lid, easy open cover and the pop can with easy open cover |
-
2024
- 2024-09-30 CN CN202411382818.4A patent/CN118877360B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809861A (en) * | 1980-01-16 | 1989-03-07 | American National Can Company | Buckle resistant can end |
| WO2003004716A2 (en) * | 2001-07-03 | 2003-01-16 | Container Development, Ltd. | Can shell and double-seamed can end |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118877360A (en) | 2024-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101746195B1 (en) | Metal bottle can | |
| CA2471825C (en) | Bottle can member, bottle, and thread forming device | |
| CN108883852B (en) | Metal container with screw thread | |
| US20030173367A1 (en) | Metallic beverage can end with improved chuck wall and countersink | |
| CN118877360B (en) | Easy-open can lid basic cover and easy-open can lid | |
| CA2817582A1 (en) | Metallic beverage can end closure with offset countersink | |
| JP4800023B2 (en) | Aluminum alloy can with small capacity screw | |
| US12077340B2 (en) | Can container | |
| CN204776466U (en) | Beverage tin | |
| CN110198894A (en) | Bottle-type tank | |
| US4564119A (en) | Aluminum can end | |
| EP3386878B1 (en) | Can end with venting feature | |
| EP3279100A1 (en) | Can body | |
| JP6760460B1 (en) | Manufacturing method of seamless can body and seamless can body | |
| JP2000109068A (en) | Lid for positive internal pressure can | |
| US11673705B2 (en) | Metal bottle can comprising a curl portion for receiving a crown type closure | |
| JPH08192840A (en) | Can lid | |
| CN211767846U (en) | A reinforced special-shaped tank | |
| EP4119252A1 (en) | Seamless can body and method for producing seamless can body | |
| CA2979582A1 (en) | Can body | |
| CN105667944A (en) | Bottom cover of two-piece pop-up can | |
| CN220616783U (en) | Novel easy-to-open lid | |
| CN219097282U (en) | Anti-expansion pop can structure | |
| EP3919400A1 (en) | Bottle can, production method for bottle cans, and design method for bottle cans | |
| JP2002308263A (en) | Can lid for positive internal pressure can |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |