公开(公告)号：US08449799B2

公开(公告)日：2013-05-28

申请号：US13332809

申请日：2011-12-21

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B29C45/28

CPC分类号： B29C45/176 ,  B29C45/281 ,  B29C2045/2827 ,  B29C2045/2855 ,  B29C2045/2889 ,  F16K31/122 ,  F16K49/00

摘要： A valve gate assembly comprises a piston that is actuable between a forward position and a rear position and has a piston stop surface and a forward pressure surface. A cylinder has a cylinder stop surface that is disposed to contact the piston stop surface when the piston is in the forward position. The cylinder stop surface is radially outward of at least a portion of the forward pressure surface and a shutoff pin is substantially aligned with the axis.

摘要翻译： 阀门组件包括可在前进位置和后部位置之间致动并具有活塞止动表面和向前压力表面的活塞。 气缸具有气缸止动表面，当活塞处于向前位置时，其设置成接触活塞止动表面。 气缸止动表面在前向压力表面的至少一部分的径向外侧，并且截止销基本上与轴线对准。

公开(公告)号：US4906360A

公开(公告)日：1990-03-06

申请号：US316995

申请日：1989-02-28

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B01D29/44 ,  B01D35/18 ,  B29C45/24

CPC分类号： B29C45/24 ,  B01D29/44 ,  B01D35/18

摘要： A multi-stage filter for filtering injection molding melt includes an elongate filter element having a filter inlet end, a filter outlet end and a plurality of filter stages axially disposed on the element and adjoining each other. Each filter stage includes a plurality of axial filter grooves in its outer surface which are spaced apart from a filter chamber wall to define a distinct filter clearance for each filter stage. The axial filter grooves are circumferentially spaced apart from each other and alternate with axial grooves axially extending between adjoining filter stages which define melt transfer passages to transfer melt between filter stages.

摘要翻译： 用于过滤注塑熔体的多级过滤器包括具有过滤器入口端，过滤器出口端和轴向设置在元件上并彼此相邻的多个过滤器级的细长过滤元件。 每个过滤器级在其外表面上包括多个轴向过滤器槽，其与过滤室壁间隔开，以为每个过滤器段限定不同的过滤器间隙。 轴向过滤器槽彼此周向地间隔开，并且与在相邻的过滤器阶段之间轴向延伸的轴向沟槽交替，这些槽限定熔体传送通道以在过滤器阶段之间转移熔体。

公开(公告)号：USRE41280E1

公开(公告)日：2010-04-27

申请号：US12367244

申请日：2009-02-06

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B29C45/23

CPC分类号： B29C45/2806 ,  B29C2045/2848 ,  B29C2045/2889

摘要： The valve pin adjustment system is provided for use in valve gated injection molding applications which enables adjustments to the positioning of the valve pin without necessitating removal of the clamping plates and valve assembly components, including valve pins. A piston associated with the valve pin includes a cylindrical body having first and second co-axially aligned internally threaded bores of respective first and second diameters. Preferably, the threads formed in the first and second bores are of the opposite hand. First and second externally-threaded cylindrical valve pin positioning members are respectively received in the first and second bores. Each of the positioning members includes a head portion and a tip portion. The tip of the second positioning member is in contact with the head of the first positioning member to lock the first positioning member in place, and the tip of the first positioning member is in contact with a head portion on the valve pin to locate the valve pin.

摘要翻译： 阀针调节系统被提供用于阀门浇注注射成型应用中，其可以调整阀销的定位，而不需要去除包括阀销在内的夹紧板和阀组件部件。 与阀销相关联的活塞包括具有相应的第一和第二直径的第一和第二同轴对准的内螺纹孔的圆柱体。 优选地，形成在第一和第二孔中的螺纹具有相反的手。 第一和第二外螺纹圆柱形阀销定位构件分别容纳在第一和第二孔中。 每个定位构件包括头部和尖端部分。 第二定位构件的尖端与第一定位构件的头部接触以将第一定位构件锁定在适当位置，并且第一定位构件的尖端与阀销上的头部部分接触以定位阀 销。

公开(公告)号：US5136141A

公开(公告)日：1992-08-04

申请号：US606509

申请日：1990-10-31

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B29C45/27

CPC分类号： B29C45/2737 ,  B29C45/27 ,  B29C2045/274 ,  B29C2045/2754

摘要： A sprue bushing with an integral casing construction which as improved heat transfer characteristics and a method of making the same are described. A cylindrical bushing body having a first, preselected uniform diameter has a cavity formed therein which axially extends within the bushing body for a predetermined length. A bushing inner core which is integral with the bushing casing is formed in the cavity and extends between the two ends of the bushing body. One or more heating elements in the form of coil heaters may be inserted into the bushing body cavity and a thermally conductive material is deposited into the cavity to fill the remainder of the cavity. When filled, the bushing body is heated to melt the thermally conductive material around the heating element(s) to form a unified heater assembly in the annular cavity. A melt runner passage is then drilled through the inner core.

摘要翻译： 描述了具有改进的传热特性的整体式外壳结构的浇口衬套及其制造方法。 具有第一预选均匀直径的圆柱形衬套主体具有形成在其中的空腔，其在衬套本体内轴向延伸预定长度。 与衬套壳体成一体的衬套内芯形成在空腔中，并在衬套主体的两端之间延伸。 线圈加热器形式的一个或多个加热元件可以插入衬套体腔中，并且导热材料沉积到空腔中以填充空腔的其余部分。 当填充时，衬套主体被加热以使加热元件周围的导热材料熔化，从而在环形空腔中形成统一的加热器组件。 然后通过内芯钻出熔体流道通道。

公开(公告)号：US4988848A

公开(公告)日：1991-01-29

申请号：US428968

申请日：1989-10-30

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B29C45/27 ,  F27D11/02

CPC分类号： B29C45/2737 ,  F27D11/02 ,  B29C2045/274 ,  B29C2045/2748

摘要： A sprue bushing which eliminates melt leakage and a method of making the same are described. A cylindrical bushing body having a first, preselected uniform diameter has an annular cavity formed therein which axially extends within the bushing body for a predetermined length and which separates the bushing inner core from the bushing body. A heating element in the form of a ceramic insulator sleeve is inserted into the annular cavity and a particulate refractory material is deposited into the annular cavity to fill the remainder of the annular cavity. When filled, the bushing body is swaged down to a second preselected uniform diameter to compact the powdered refractory together with the preformed sleeve to form a solid heating element. A runner passage is then drilled through the inner core so that the inner core is integral with the bushing casing.

摘要翻译： 描述了消除熔体泄漏的浇口衬套及其制造方法。 具有第一预选均匀直径的圆柱形衬套主体具有形成在其中的环形空腔，其在衬套本体内轴向延伸预定长度，并将衬套内芯​​与衬套本体分开。 将陶瓷绝缘体套筒形式的加热元件插入到环形空腔中，并将颗粒状耐火材料沉积到环形空腔中以填充环形空腔的其余部分。 当填充时，衬套主体被倒下至第二预选的均匀直径，以将粉末状耐火材料与预成型套筒一起压实以形成固体加热元件。 然后通过内芯钻出流道通道，使得内芯与套管套管成一体。

公开(公告)号：US4899435A

公开(公告)日：1990-02-13

申请号：US393476

申请日：1989-08-14

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B29C45/27 ,  F27D11/02

CPC分类号： F27D11/02 ,  B29C45/2737 ,  B29C2045/274 ,  B29C2045/2748 ,  Y10T29/49083 ,  Y10T29/49087 ,  Y10T29/49089

摘要： A sprue bushing which eliminates melt leakage and a method of making the same are described. A cylindrical bushing body having a first, preselected uniform diameter has an annular cavity formed therein which axially extends within the bushing body for a predetermined length and which separates the bushing inner core from the bushing body. A heating element in the form of a ceramic insulator sleeve is inserted into the annular cavity and a particulate refractory material is deposited into the annular cavity to fill the remainder of the annular cavity. When filled, the bushing body is swaged down to a second preselected uniform diameter to compact the powdered refractory together with the preformed sleeve to form a solid heating element. A runner passage is then drilled through the inner core so that the inner core is integral with the bushing casing.

摘要翻译： 描述了消除熔体泄漏的浇口衬套及其制造方法。 具有第一预选均匀直径的圆柱形衬套主体具有形成在其中的环形空腔，其在衬套本体内轴向延伸预定长度，并将衬套内芯​​与衬套本体分开。 将陶瓷绝缘体套筒形式的加热元件插入到环形空腔中，并将颗粒状耐火材料沉积到环形空腔中以填充环形空腔的其余部分。 当填充时，衬套主体被倒下至第二预选的均匀直径，以将粉末状耐火材料与预成型套筒一起压实以形成固体加热元件。 然后通过内芯钻出流道通道，使得内芯与套管套管成一体。

公开(公告)号：US08113818B2

公开(公告)日：2012-02-14

申请号：US12750228

申请日：2010-03-30

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B29C45/38 ,  F16K31/163

CPC分类号： B29C45/176 ,  B29C45/281 ,  B29C2045/2827 ,  B29C2045/2855 ,  B29C2045/2889 ,  F16K31/122 ,  F16K49/00

摘要： A valve gate assembly comprises a piston that is actuable between a forward position and a rear position and has a piston stop surface and a forward pressure surface. A cylinder has a cylinder stop surface that is disposed to contact the piston stop surface when the piston is in the forward position. The cylinder stop surface is radially outward of at least a portion of the forward pressure surface and a shutoff pin is substantially aligned with the axis.

摘要翻译： 阀门组件包括可在前进位置和后部位置之间致动并具有活塞止动表面和向前压力表面的活塞。 气缸具有气缸止动表面，当活塞处于向前位置时，其设置成接触活塞止动表面。 气缸止动表面在前向压力表面的至少一部分的径向外侧，并且截止销基本上与轴线对准。

公开(公告)号：US20060159799A1

公开(公告)日：2006-07-20

申请号：US11036720

申请日：2005-01-14

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B29C45/23

CPC分类号： B29C45/30

摘要： An injection molding nozzle is disclosed in which the body has a front end and a central bore terminating at the front end, the front end receiving a needle assembly. The needle assembly has an outer retaining piece adapted to be removeably secured to the front end of the body. The inner piece of the needle assembly is adapted to be received within the outer retaining piece and includes a gating needle that extends through the central opening of the outer retaining piece so as to be in close proximity to the gate of the mold cavity. In one aspect of the invention, the gating needle has a central cylindrical portion with an outer surface that is spaced from the outer retaining piece and at least one melt passageway whose exit is located asymmetrically with respect to the longitudinal axis of the gating needle. In a second aspect, the melt passageway extends linearly and asymmetrically through the gating needle.

摘要翻译： 公开了一种注射成型喷嘴，其中主体具有前端和终止于前端的中心孔，前端容纳针组件。 针组件具有适于可移除地固定到主体前端的外保持件。 针组件的内部件适于容纳在外保持件内，并且包括延伸穿过外保持件的中心开口以便紧靠模腔的门的门控针。 在本发明的一个方面，门控针具有中心圆柱形部分，其外表面与外保持件间隔开，并且至少一个熔体通道的出口相对于选通针的纵向轴线不对称地定位。 在第二方面，熔体通道线性地和不对称地延伸穿过门控针。

公开(公告)号：US20050048161A1

公开(公告)日：2005-03-03

申请号：US10922392

申请日：2004-08-20

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B29C45/22 ,  B29C45/27 ,  B29C45/74

CPC分类号： B29C45/22 ,  B29C45/2737 ,  B29C45/278 ,  B29C2045/2788

摘要： An internally heated injection molding nozzle has a unitary head portion and body portion. The nozzle has opposed, generally planar, lateral faces and front and back sides. A melt passageway is defined by a bore extending through the head portion and body portion, and a heater core is received in an elongated cavity that is in generally parallel alignment with, and spaced from, the melt passageway.

摘要翻译： 内部加热的注射成型喷嘴具有整体的头部和主体部分。 喷嘴具有相对的，大致平面的侧面和前侧和后侧。 熔体通道由延伸穿过头部和主体部分的孔限定，并且加热器芯容纳在与熔体通道大致平行对准并间隔开的细长空腔中。

公开(公告)号：US5180594A

公开(公告)日：1993-01-19

申请号：US746966

申请日：1991-08-19

申请人： Panos Trakas

发明人： Panos Trakas

IPC分类号： B23P15/00 ,  B29C45/27 ,  H05B3/42

CPC分类号： B23P15/007 ,  B29C45/27 ,  B29C45/2737 ,  H05B3/42 ,  B29C2045/2748 ,  Y10T29/49083

摘要： A sprue bushing which has improved heat transfer characteristics and a method of making the same are described. A cylindrical bushing body having a first, preselected uniform diameter has a cavity formed therein which axially extends within the bushing body for a predetermined length. A bushing inner core which has an outer layer or sleeve of a high heat conductive material is formed in the cavity extending between the two ends of the bushing body. A heating element in the form of a ceramic insulator sleeve is inserted into the bushing body cavity and a particulate refractory material is deposited into the cavity to fill the remainder of the cavity. When filled, the bushing body is swaged down to a second preselected uniform diameter to compact the powdered refractory together with the preformed sleeve to form a solid heating element. A runner passage is then drilled through the inner core.

摘要翻译： 描述了具有改善的传热特性的浇口衬套及其制造方法。 具有第一预选均匀直径的圆柱形衬套主体具有形成在其中的空腔，其在衬套本体内轴向延伸预定长度。 在衬套主体的两端之间延伸的空腔中形成有具有高导热材料的外层或套管的衬套内芯。 将陶瓷绝缘体套筒形式的加热元件插入到衬套体腔中，并将颗粒状耐火材料沉积到空腔中以填充空腔的其余部分。 当填充时，衬套主体被倒下至第二预选的均匀直径，以将粉末状耐火材料与预成型套筒一起压实以形成固体加热元件。 然后通过内芯钻出一个转轮通道。