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1. 发明专利

FI114301B 未知
公开(公告)号：FI114301B
公开(公告)日：2004-09-30
申请号：FI990978
申请日：1999-04-29
申请人： TETRA LAVAL HOLDINGS & FINANCE
发明人： GUSTAFSSON PER , RENDINA ANTONIO
IPC分类号： B29C45/14 , B29C45/26 , B65D77/06 , B29C45/33
摘要： An apparatus and method for molding opening devices onto a packaging material sheet at respective holes provided in the sheet. The apparatus includes first and second mold tools arrangeable in a closed position so as to be in contact with opposite sides of the sheet and in an open position so as to be positioned distally from the sheet. In the closed positions a mold cavity is formed between the first and second mold tools for accommodating a hole edge in the sheet. The apparatus further includes an injection passage for injecting heated thermoplastics material into the mold cavity, which injection passage extends in one of the mold tools such that the thermoplastics material is injected directly into the mold cavity at an injection point of the mold cavity which is located distally from the hole edge, for providing effective formation of the opening device on the sheet. One of the mold tools includes a pair of half mold tools which are simultaneously moved from the open position to the closed position and vice versa such that the direction of movement of each of said half mold tools between the open and closed positions tangentially follows a circular path, for reducing wear of the mold tools. In the closed position of the mold tools, the sheet extends in a plane which is distally spaced from the plane of extension of the sheet in the open position aiding in release of the sheet and the molded opening device from the mold tools.

2. 发明专利

DE69719389T2 未知
公开(公告)号：DE69719389T2
公开(公告)日：2003-10-30
申请号：DE69719389
申请日：1997-09-23
申请人： TETRA LAVAL HOLDINGS & FINANCE
发明人： RENDINA ANTONIO , KARLSSON MAGNE , BREIVALD TORD
IPC分类号： B29C45/14 , B65D5/74 , B65D17/40
摘要： An opening device (2) attached at a hole (4) in a top wall portion (16) of a packaging container (12) and positioned adjacent a fold line (14) of the packaging container, including a base portion (8) connected to the top wall at the hole, and a lid portion (10) releasably connected to the base portion, in which the base portion has a portion (26) protruding from a main circumferential portion (24) towards the fold line (14), for providing increased stability of the container during storage and transport. A tamper evidence protrusion (11), also functioning as a pull tab for opening the lid portion, extends from the lid portion to be connected to an outer side (6b) of the top wall portion. A reduced thickness tearing edge (28) is provided between the base portion and the lid portion for facilitating opening, and a bistable hinge (9) releasably biases the lid portion to stably remain in an open position, for avoiding interference of the lid portion during product dispensing. The base portion has an upper ring portion (30) and the lid portion has a lower ring portion (32) which after the release of the lid portion from the base portion may be mutually intermated in a releasably locked manner, so as to reseal the opening device.

3. 发明专利

ITTO980174U1 未知
公开(公告)号：ITTO980174U1
公开(公告)日：2000-03-22
申请号：ITTO980174
申请日：1998-09-22
申请人： TETRA LAVAL HOLDINGS & FINANCE
发明人： RENDINA ANTONIO , KRISTENSSON CONNIE INGEMAR
IPC分类号： B65D5/54 , B65D5/70

4. 发明专利

PL333205A1 METHOD OF AND DEVICE FOR SHAPING AN OPENER IN A SHEET MATERIAL INTENDED FOR PACKAGING 未知
公开(公告)号：PL333205A1
公开(公告)日：1999-11-22
申请号：PL33320597
申请日：1997-09-23
申请人： TETRA LAVAL HOLDINGS & FINANCE
发明人： GUSTAFSSON PER , RENDINA ANTONIO
IPC分类号： B29C45/14 , B29C45/26 , B65D77/06 , B29C45/33
摘要： An apparatus and method for molding opening devices onto a packaging material sheet at respective holes provided in the sheet. The apparatus includes first and second mold tools arrangeable in a closed position so as to be in contact with opposite sides of the sheet and in an open position so as to be positioned distally from the sheet. In the closed positions a mold cavity is formed between the first and second mold tools for accommodating a hole edge in the sheet. The apparatus further includes an injection passage for injecting heated thermoplastics material into the mold cavity, which injection passage extends in one of the mold tools such that the thermoplastics material is injected directly into the mold cavity at an injection point of the mold cavity which is located distally from the hole edge, for providing effective formation of the opening device on the sheet. One of the mold tools includes a pair of half mold tools which are simultaneously moved from the open position to the closed position and vice versa such that the direction of movement of each of said half mold tools between the open and closed positions tangentially follows a circular path, for reducing wear of the mold tools. In the closed position of the mold tools, the sheet extends in a plane which is distally spaced from the plane of extension of the sheet in the open position aiding in release of the sheet and the molded opening device from the mold tools.

5. 发明专利

NO992117A 未知
公开(公告)号：NO992117A
公开(公告)日：1999-04-30
申请号：NO992117
申请日：1999-04-30
申请人： TETRA LAVAL HOLDINGS & FINANCE
发明人： GUSTAFSSON PER , RENDINA ANTONIO
IPC分类号： B65D77/06 , B29C45/14 , B29C45/26 , B29C45/33 , B29C
CPC分类号： B29C45/14344 , B29C45/33 , B29L2031/565 , B29L2031/7162

6. 发明专利

DE69717309T2 未知
公开(公告)号：DE69717309T2
公开(公告)日：2003-10-02
申请号：DE69717309
申请日：1997-09-23
申请人： TETRA LAVAL HOLDINGS & FINANCE
发明人： GUSTAFSSON PER , RENDINA ANTONIO
IPC分类号： B65D77/06 , B29C45/14 , B29C45/26 , B29C45/33
摘要： An apparatus and method for molding opening devices onto a packaging material sheet at respective holes provided in the sheet. The apparatus includes first and second mold tools arrangeable in a closed position so as to be in contact with opposite sides of the sheet and in an open position so as to be positioned distally from the sheet. In the closed positions a mold cavity is formed between the first and second mold tools for accommodating a hole edge in the sheet. The apparatus further includes an injection passage for injecting heated thermoplastics material into the mold cavity, which injection passage extends in one of the mold tools such that the thermoplastics material is injected directly into the mold cavity at an injection point of the mold cavity which is located distally from the hole edge, for providing effective formation of the opening device on the sheet. One of the mold tools includes a pair of half mold tools which are simultaneously moved from the open position to the closed position and vice versa such that the direction of movement of each of said half mold tools between the open and closed positions tangentially follows a circular path, for reducing wear of the mold tools. In the closed position of the mold tools, the sheet extends in a plane which is distally spaced from the plane of extension of the sheet in the open position aiding in release of the sheet and the molded opening device from the mold tools.

7. 发明专利

ES2187818T3 未知
公开(公告)号：ES2187818T3
公开(公告)日：2003-06-16
申请号：ES97942364
申请日：1997-09-23
申请人： TETRA LAVAL HOLDINGS & FINANCE
发明人： GUSTAFSSON PER , RENDINA ANTONIO
IPC分类号： B29C45/14 , B29C45/26 , B65D77/06 , B29C45/33
摘要： An apparatus and method for molding opening devices onto a packaging material sheet at respective holes provided in the sheet. The apparatus includes first and second mold tools arrangeable in a closed position so as to be in contact with opposite sides of the sheet and in an open position so as to be positioned distally from the sheet. In the closed positions a mold cavity is formed between the first and second mold tools for accommodating a hole edge in the sheet. The apparatus further includes an injection passage for injecting heated thermoplastics material into the mold cavity, which injection passage extends in one of the mold tools such that the thermoplastics material is injected directly into the mold cavity at an injection point of the mold cavity which is located distally from the hole edge, for providing effective formation of the opening device on the sheet. One of the mold tools includes a pair of half mold tools which are simultaneously moved from the open position to the closed position and vice versa such that the direction of movement of each of said half mold tools between the open and closed positions tangentially follows a circular path, for reducing wear of the mold tools. In the closed position of the mold tools, the sheet extends in a plane which is distally spaced from the plane of extension of the sheet in the open position aiding in release of the sheet and the molded opening device from the mold tools.

8. 发明专利

DE69719389D1 未知
公开(公告)号：DE69719389D1
公开(公告)日：2003-04-03
申请号：DE69719389
申请日：1997-09-23
申请人： TETRA LAVAL HOLDINGS & FINANCE
发明人： RENDINA ANTONIO , KARLSSON MAGNE , BREIVALD TORD
IPC分类号： B29C45/14 , B65D5/74 , B65D17/40
摘要： An opening device (2) attached at a hole (4) in a top wall portion (16) of a packaging container (12) and positioned adjacent a fold line (14) of the packaging container, including a base portion (8) connected to the top wall at the hole, and a lid portion (10) releasably connected to the base portion, in which the base portion has a portion (26) protruding from a main circumferential portion (24) towards the fold line (14), for providing increased stability of the container during storage and transport. A tamper evidence protrusion (11), also functioning as a pull tab for opening the lid portion, extends from the lid portion to be connected to an outer side (6b) of the top wall portion. A reduced thickness tearing edge (28) is provided between the base portion and the lid portion for facilitating opening, and a bistable hinge (9) releasably biases the lid portion to stably remain in an open position, for avoiding interference of the lid portion during product dispensing. The base portion has an upper ring portion (30) and the lid portion has a lower ring portion (32) which after the release of the lid portion from the base portion may be mutually intermated in a releasably locked manner, so as to reseal the opening device.

9. 发明专利

DK0949992T3 未知
公开(公告)号：DK0949992T3
公开(公告)日：2003-03-10
申请号：DK97942364
申请日：1997-09-23
申请人： TETRA LAVAL HOLDINGS & FINANCE
发明人： GUSTAFSSON PER , RENDINA ANTONIO
IPC分类号： B29C45/14 , B29C45/26 , B65D77/06 , B29C45/33
摘要： An apparatus and method for molding opening devices onto a packaging material sheet at respective holes provided in the sheet. The apparatus includes first and second mold tools arrangeable in a closed position so as to be in contact with opposite sides of the sheet and in an open position so as to be positioned distally from the sheet. In the closed positions a mold cavity is formed between the first and second mold tools for accommodating a hole edge in the sheet. The apparatus further includes an injection passage for injecting heated thermoplastics material into the mold cavity, which injection passage extends in one of the mold tools such that the thermoplastics material is injected directly into the mold cavity at an injection point of the mold cavity which is located distally from the hole edge, for providing effective formation of the opening device on the sheet. One of the mold tools includes a pair of half mold tools which are simultaneously moved from the open position to the closed position and vice versa such that the direction of movement of each of said half mold tools between the open and closed positions tangentially follows a circular path, for reducing wear of the mold tools. In the closed position of the mold tools, the sheet extends in a plane which is distally spaced from the plane of extension of the sheet in the open position aiding in release of the sheet and the molded opening device from the mold tools.

10. 发明专利

RU2198120C2 OPENING DEVICE TO BE ATTACHED TO HOLE ON SHEET OF PACKING MATERIAL AND PACKING CONTAINER 未知
公开(公告)号：RU2198120C2
公开(公告)日：2003-02-10
申请号：RU99111263
申请日：1997-09-23
申请人： TETRA LAVAL HOLDINGS & FINANCE
发明人： RENDINA ANTONIO , KARL SSON MAGNE , BREIVAL D TORD
IPC分类号： B29C45/14 , B65D5/74 , B65D17/40
摘要： FIELD: packing. SUBSTANCE: invention relates to opening device made of plastic material which is formed directly on sheet by injection moulding. Proposed opening device 2 is secured on hole 4 in upper wall part 16 of packing container 12, being located adjacent to container bending line 14. Device has part 8 consisting of base and cover 10. Projection 11 - opening indicator is used also as cover opening lip. Tearoff edge 28a is found between part forming the base and over part. Hinge 9 has two stable positions and it displaces cover part to keep it stable in opened position to preclude interference when pouring out product. Base forming part is provided with upper ring part 30, and cover part is provided with lower ring part 32. parts 30 and 32, after separating cover and base parts, can be mated, in lock and release manner, for re-sealing of opening device. EFFECT: improved convenience in use. 8 cl, 5 dwg

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