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1. 发明申请

WO0021874A9 APPARATUS AND METHOD FOR FORMING CAP 审中-公开
标题翻译：装置和形成CAP的方法
公开(公告)号：WO0021874A9
公开(公告)日：2000-08-24
申请号：PCT/US9923603
申请日：1999-10-12
申请人： PORTOLA PACKAGING INC
发明人： BIETZER STEVEN H
IPC分类号： B67D99/00 , B29C45/40 , B29C45/43 , B29C45/44 , B65D41/62 , B67D3/00 , B67D5/00
CPC分类号： B67D3/0032 , B29C45/40 , B29C45/4407 , B29C2043/5053 , B29C2045/4078 , B29L2031/565 , B65D41/62
摘要： A mold for injection molding of a plastic bottle cap (10) has a cavity (36) which defines the outside slope of the top and skirt of the cap. A core (41) and a core insert (42) fixed to the top of the core define the inside of the cap and constitute a single, non-moving part. A tapered stripper ring (43) below the cavity engages the base of the cap skirt (13). After the cap has been injected through a hot tip (37) in the cavity, the cavity is retracted. The stripper ring is then elevated relative to the core by means of ejector pins (44). As this is proceeding, air is released under the top of the cap to break a vacuum tending to hold the cap on the cap insert. The cap is thus ejected from the mold. A reduced cycle time is achieved. The wall thickness of the cap may be reduced, thus reducing material cost.
摘要翻译：用于塑料瓶盖（10）的注射成型的模具具有限定盖的顶部和裙部的外侧坡度的空腔（36）。固定到芯的顶部的芯（41）和芯插入件（42）限定盖的内部，并且构成单个的不移动部件。腔下方的锥形剥离环（43）接合帽裙（13）的底部。在盖已经通过空腔中的热尖端（37）注入之后，空腔被缩回。然后，剥离器环通过顶出销（44）相对于芯体升高。随着这一进行，空气被释放在盖的顶部以破坏真空，以将盖子保持在盖子插入件上。盖因此从模具中弹出。缩短循环时间。可以减小盖的壁厚，从而降低材料成本。

2. 发明专利

DE69934441D1 未知
公开(公告)号：DE69934441D1
公开(公告)日：2007-01-25
申请号：DE69934441
申请日：1999-10-12
申请人： PORTOLA PACKAGING INC
发明人： BIETZER STEVEN H
IPC分类号： B67D99/00 , B29C45/40 , B29C45/43 , B29C45/44 , B65D41/62 , B67D3/00

3. 发明专利

ZA9309162B Vented snap-on screw-off cap and container neck 未知
公开(公告)号：ZA9309162B
公开(公告)日：1995-02-09
申请号：ZA9309162
申请日：1993-12-07
申请人： PORTOLA PACKAGING INC
发明人： LUCH DANIEL , BIETZER STEVEN H
IPC分类号： B65D20060101 , B65D

4. 发明专利

DE69934441T2 未知
公开(公告)号：DE69934441T2
公开(公告)日：2007-10-31
申请号：DE69934441
申请日：1999-10-12
申请人： PORTOLA PACKAGING INC
发明人： BIETZER STEVEN H
IPC分类号： B67D99/00 , B29C45/40 , B29C45/43 , B29C45/44 , B65D41/62 , B67D3/00

5. 发明专利

CA2345658A1 APPARATUS AND METHOD FOR FORMING CAP 未知
公开(公告)号：CA2345658A1
公开(公告)日：2000-04-20
申请号：CA2345658
申请日：1999-10-12
申请人： PORTOLA PACKAGING INC
发明人： BIETZER STEVEN H
IPC分类号： B67D99/00 , B29C45/40 , B29C45/43 , B29C45/44 , B65D41/62 , B67D3/00 , B67D5/00
摘要： A mold for injection molding of a plastic bottle cap (10) has a cavity (36) which defines the outside slope of the top and skirt of the cap. A core (41) and a core insert (42) fixed to the top of the core define the inside of the cap and constitute a single, non-moving part. A tapered stripper ring (43) below the cavity engages the base of the cap skirt (13). After the cap has been injected through a hot tip (37) in the cavity, the cavity is retracted. The stripper ring is then elevated relative to the core by means of ejector pins (44). As this is proceeding, air is released under the top of the cap t o break a vacuum tending to hold the cap on the cap insert. The cap is thus ejected from the mold. A reduced cycle time is achieved. The wall thickness of the cap may be reduced, thus reducing material cost.

6. 发明专利

AU1312400A Apparatus and method for forming cap 未知
公开(公告)号：AU1312400A
公开(公告)日：2000-05-01
申请号：AU1312400
申请日：1999-10-12
申请人： PORTOLA PACKAGING INC
发明人： BIETZER STEVEN H
IPC分类号： B67D99/00 , B29C45/40 , B29C45/43 , B29C45/44 , B65D41/62 , B67D3/00 , B67D5/00

7. 发明专利

AU1660295A Foil lined snap-on, screw-off closure 未知
公开(公告)号：AU1660295A
公开(公告)日：1996-02-16
申请号：AU1660295
申请日：1995-01-17
申请人： PORTOLA PACKAGING INC
发明人： BIETZER STEVEN H , CHENAULT RAWSON L , LUCH DANIEL , REPP RICHARD E
IPC分类号： B29C65/00 , B29C65/02 , B65D41/04 , B65D41/17 , B65D41/34 , B65D41/47 , B65D51/20 , B65D77/20 , B65D41/22

8. 发明专利

AU5735494A Vented snap-on, screw-off cap and container neck 未知
公开(公告)号：AU5735494A
公开(公告)日：1995-06-19
申请号：AU5735494
申请日：1993-12-02
申请人： PORTOLA PACKAGING INC
发明人： LUCH DANIEL , BIETZER STEVEN H
IPC分类号： B65D41/34 , B65D51/16 , B65D55/02

9. 发明公开

EP1169261A4 APPARATUS AND METHOD FOR FORMING CAP 有权
标题翻译：装置及其制造方法封闭帽
公开(公告)号：EP1169261A4
公开(公告)日：2002-04-24
申请号：EP99956528
申请日：1999-10-12
申请人： PORTOLA PACKAGING INC
发明人： BIETZER STEVEN H
IPC分类号： B67D99/00 , B29C45/40 , B29C45/43 , B29C45/44 , B65D41/62 , B67D3/00 , B67D5/00
CPC分类号： B67D3/0032 , B29C45/40 , B29C45/4407 , B29C2043/5053 , B29C2045/4078 , B29L2031/565 , B65D41/62

10. 发明专利

CA2345658C APPARATUS AND METHOD FOR FORMING CAP 未知
公开(公告)号：CA2345658C
公开(公告)日：2008-09-09
申请号：CA2345658
申请日：1999-10-12
申请人： PORTOLA PACKAGING INC
发明人： BIETZER STEVEN H
IPC分类号： B29C45/43 , B67D99/00 , B29C45/40 , B29C45/44 , B65D41/62 , B67D3/00
摘要： A mold for injection molding of a plastic bottle cap (10) has a cavity (36 ) which defines the outside slope of the top and skirt of the cap. A core (41) and a core insert (42) fixed to the top of the core define the inside of the cap and constitute a single, non-moving part. A tapered stripper ring (43) below the cavity engages the base of the cap skirt (13). After the cap has been inject ed through a hot tip (37) in the cavity, the cavity is retracted. The stripper ring is then elevated relative to the core by means of ejector pins (44). As this is proceeding, air is released under the top of the cap to break a vacuum tendi ng to hold the cap on the cap insert. The cap is thus ejected from the mold. A reduced cycle time is achieved. The wall thickness of the cap may be reduced , thus reducing material cost.

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