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31. 发明专利

CA2567134A1 A MOLDING STRUCTURE AND A METHOD OF MOLDING 未知
公开(公告)号：CA2567134A1
公开(公告)日：2008-05-02
申请号：CA2567134
申请日：2006-11-02
申请人： HUSKY INJECTION MOLDING , KORTEC INC
发明人： MACDONALD JEFFREY DOUGLAS , REYNOLDS ADAM CRAIG , SWENSON PAUL MICHAEL , KERMET JOHN NICHOLAS
IPC分类号： B29C45/16 , B29C45/17 , B29C45/26 , B29C45/76
摘要： Disclosed is a molding structure, and a method of molding molded articles, amongst other things.

32. 发明专利

CA2266381C METHOD OF THROTTLE-VALVING CONTROL FOR THE CO-EXTRUSION OF PLASTIC MATERIALS AS FOR MOLDING AND THE LIKE, AND APPARATUS THEREFOR 未知
公开(公告)号：CA2266381C
公开(公告)日：2006-08-01
申请号：CA2266381
申请日：1996-12-06
申请人： KORTEC INC
发明人： SWENSON PAUL
IPC分类号： B29C45/16 , B29C45/78 , B29C48/18
摘要： A novel multiple-plastic stream co-extruder and method, as for injection-molding cavities, in which the extruder is internally provided therewithin and therealong with a restrictor or throttle pin, rod or element that forces combined plastic material streams, formed with an interior core stream encased in outer and inner stream layers, into corresponding concentric annular flow stream layers that are ultimately split transversely in opposite directions into a cavity gated to the extruder, and with the core stream at a region of zero gradient in the transverse flow velocity profile within the extruder and cavity.

33. 发明专利

BR0116965A 未知
公开(公告)号：BR0116965A
公开(公告)日：2005-01-11
申请号：BR0116965
申请日：2001-10-26
申请人： KORTEC INC
发明人： SWENSON PAUL
IPC分类号： B29C45/16 , B29C45/20 , B29K67/00 , B29L9/00 , B29C49/06 , B29C49/22
摘要： A novel technique for molding multi-layer polymer plastic articles having inner, outer and interior or core layers by controlling relative volumetric flow rates of the inner and outer layers to enable relative shifting of the position of the core, and also the relative thickness of the inner and outer layers in the molded articles; and with leading, and, where desired, trailing ends of the interior layer flow into the mold cavity substantially positioned on the zero gradient of the velocity profile of the flowing polymer streams.

34. 发明专利

CZ292815B6 Method of co-extruding multiple plastic materials and apparatus for making the same 未知
公开(公告)号：CZ292815B6
公开(公告)日：2003-12-17
申请号：CZ105999
申请日：1996-12-06
申请人： KORTEC INC
发明人： SWENSON PAUL
IPC分类号： B29C45/16 , B29C45/78 , B29C48/18
摘要： In the present invention, there is disclosed a method of co-extruding multiple plastic materials as for injecting through a gate region (G, G') into a mold cavity (M) to produce a molded product that comprises: combining streams (Ci1, Ci2) of such flowing plastic materials with at least one inner stream (IA) that is to serve as an interior core of a resulting molded plastic product within inner and outer streams (IL, OL) of plastic material; restricting the combined streams to flow along concentric annular flow paths within and along a longitudinally extending tubular extruder (E, E') to the cavity (M) gate region (G, G'), with the annular core stream (IA) encased by inner and outer annular covering plastic material streams (IL, OL) at the gate region (G, G'); splitting the concentric annular streams (IL, IA, OL) along opposite transverse directions to inject into corresponding opposite transverse sections of the mold cavity (M). Claimed is also an apparatus for making the above-described process, said apparatus comprising a throttle pin (T) longitudinally extending centrally within and along the extruder toward a distal end opening at the gate region (G, G') (G) and means disposed at the gate region (G, G') for splitting the concentric annular streams (IL, IA, OL) along opposite transverse directions to inject into corresponding opposite transverse sections of the mold cavity (M).

35. 发明专利

HU222153B1 METHOD OF THROTTLE -VALVING CONTROL FOR THE CO-EXTRUSION OF PLASTIC MATERIALS AS FOR MOLDING AND THE LIKE,AND APPARATUS THEREFOR 未知
公开(公告)号：HU222153B1
公开(公告)日：2003-04-28
申请号：HU9904276
申请日：1996-12-06
申请人： KORTEC INC
发明人： SWENSON PAUL
IPC分类号： B29C45/16 , B29C45/78 , B29C48/18
摘要： A multiple-plastic stream co-extruder, as for injection-molding cavities, in which the extruder is internally provided therewithin and therealong with a restrictor or throttle pin, rod or element that forces combined plastic material streams, formed with an interior core stream encased in outer and inner stream layers, into corresponding concentric annular flow stream layers that are ultimately split transversely in opposite directions into a cavity gated to the extruder, and with the core stream at a region of zero gradient in the transverse flow velocity profile within the extruder and cavity.

36. 发明专利

AU719376B2 Method of throttle-valving control for the co-extrusion of plastic materials as for molding and the like, and apparatus therefor 未知
公开(公告)号：AU719376B2
公开(公告)日：2000-05-11
申请号：AU7637496
申请日：1996-12-06
申请人： KORTEC INC
发明人： SWENSON PAUL
IPC分类号： B29C45/16 , B29C45/78 , B29C48/18
摘要： A multiple-plastic stream co-extruder, as for injection-molding cavities, in which the extruder is internally provided therewithin and therealong with a restrictor or throttle pin, rod or element that forces combined plastic material streams, formed with an interior core stream encased in outer and inner stream layers, into corresponding concentric annular flow stream layers that are ultimately split transversely in opposite directions into a cavity gated to the extruder, and with the core stream at a region of zero gradient in the transverse flow velocity profile within the extruder and cavity.

37. 发明公开

EP0929390A1 METHOD OF THROTTLE-VALVING CONTROL FOR THE CO-EXTRUSION OF PLASTIC MATERIALS AS FOR MOLDING AND THE LIKE, AND APPARATUS THEREFOR 失效
标题翻译：方法节气门控制在塑料共挤出和表格之类，及其设备
公开(公告)号：EP0929390A1
公开(公告)日：1999-07-21
申请号：EP96939250.0
申请日：1996-12-06
申请人： Kortec Inc.
发明人： SWENSON, Paul
IPC分类号： B29C45
CPC分类号： B29C45/1607 , B29C45/1642 , B29C2045/1614
摘要： A novel multiple-plastic stream co-extruder and method, as for injection-molding cavities, in which the extruder is internally provided therewithin and therealong with a restrictor or throttle pin, rod or element that forces combined plastic material streams, formed with an interior core stream encased in outer and inner stream layers, into corresponding concentric annular flow stream layers that are ultimately split transversely in opposite directions into a cavity gated to the extruder, and with the core stream at a region of zero gradient in the transverse flow velocity profile within the extruder and cavity.

38. 发明专利

CA2802328C IMPROVED GAS IMPERMEABILITY FOR INJECTION MOLDED CONTAINERS 未知
公开(公告)号：CA2802328C
公开(公告)日：2019-06-04
申请号：CA2802328
申请日：2011-07-15
申请人： KORTEC INC
发明人： SWENSON PAUL M
IPC分类号： B29C45/16
摘要： A molded multi-layer article has an interior layer contained within inner and outer layers. The article is molded by co-injecting the inner, outer, and interior layer materials into a mold defining a cavity. The interior layer material is caused to flow along a steam line offset from the zero velocity gradient of the combined material flow in a manner so that the interior layer material flow stream does not flow along or cross the zero velocity gradient yet has a greater flow velocity than the average flow velocity of the combined flow front. These methods and apparatus can mold four or more multilayer articles at once, each having an interior layer extending throughout 95% or more of the sealable portion of the article. The interior layer of a resultant article can extend throughout 99% or more of the sealable portion of the article.

39. 发明专利

CA162362S CONTAINER 未知
公开(公告)号：CA162362S
公开(公告)日：2017-04-19
申请号：CA162362
申请日：2015-05-08
申请人： KORTEC INC
摘要： The design consists of the features of shape, ornament, pattern and configuration of the Container shown in the drawings.Figure 1 is a top perspective view of a Container showing the new design;Figure 2 is a bottom perspective view thereof;Figure 3 is a front view thereof, the rear, left side and right side views being the same;Figure 4 is a top view thereof; andFigure 5 is a bottom view thereof.Drawings of the design are included.

40. 发明专利

CA2573139C MULTILAYER MOLDING USING TEMPERATURE ADJUSTMENT OF FLOW RATE IN CONJUNCTION WITH SHOOTING POT TECHNOLOGY 未知
公开(公告)号：CA2573139C
公开(公告)日：2015-08-25
申请号：CA2573139
申请日：2005-07-07
申请人： KORTEC INC
发明人： SABIN DOUGLAS , SWENSON PAUL
IPC分类号： B29C45/02 , B29C45/16 , B29C45/20
摘要： Disclosed herein are methods and systems for forming a plurality of multiple layer plastic articles. The methods and systems utilize shooting pot technology in combination with a combination of thermal control elements and in some instances, specialized flow bore geometries to control a thermal property and a flow parameter of selected polymeric material flowing through the system to mold the plurality of multiple layer plastic articles. Both the systems and methods are well suited for use to perform simultaneous flow injection or sequential flow injection to form the plurality of multiple layer plastic articles. The systems and methods described therein beneficially reduce the mold cavity pitch size for multiple layer molds used with systems having shooting pot technology to a mold cavity pitch size found on conventional monolayer molds to provide a plurality of multiple layer plastic articles having a cost similar to monolayer plastic articles.

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