Method for continuously forming open-mouthed foamed plastic containers
by blow molding techniques
    1.
    发明授权
    Method for continuously forming open-mouthed foamed plastic containers by blow molding techniques 失效
    通过吹塑技术连续形成开口泡沫塑料容器的方法

    公开(公告)号:US5045255A

    公开(公告)日:1991-09-03

    申请号:US608581

    申请日:1990-10-30

    申请人: John H. Kurz

    发明人: John H. Kurz

    摘要: A foamable plastic material is introduced to an extruder to produce a tubular parison of the material that is subsequently clamped between mold halves moving both axially and radially inwardly to form cavities for open mounted containers. Cavities for two containers are provided with each set of mold haves clamped together around the parison at the middle of the mold set to provide individual container cavities extending on either side of the clamped portion, said individual cavities terminating in the mouth portion of the container cavity which is joined in a mouth to mouth relationship with an individual container cavity of the next set of mold halves. A portion of the molten plastic material can be removed from the parison extruder at a point upstream from the point of introduction of a foaming agent and routed to the extrusion head where it is coextruded with the material containing foaming agent thus resulting in a coextruded parison having an outer layer of plastic material that contains no foaming agent and an inner layer of the same plastic material that contains a foaming agent. The resulting product is one where the outer layer provides a smooth and glossy surface finish of unfoamed plastic material to the container comprised mainly of foamed plastic material.

    摘要翻译: 将可发泡塑料材料引入到挤出机中以产生材料的管状型坯,其随后夹紧在半轴之间并且轴向和径向向内移动以形成用于敞开安装的容器的空腔。 两个容器的腔室设置有在模具组件的中部处围绕型坯夹紧在一起的每组模具,以提供在夹紧部分的任一侧上延伸的单个容器空腔,所述单个空腔终止于容器腔体的口部 其与下一组半模的单个容器腔口口对口地连接。 熔融塑料材料的一部分可以从型坯挤出机中在发泡剂引入点上游的一个点移除,并被引导到挤出头,在该挤出头与含有发泡剂的材料共挤出,从而形成共挤出型坯, 不含发泡剂的塑料材料外层和含有发泡剂的相同塑料材料的内层。 所得到的产品是其中外层为主要由发泡塑料材料组成的容器提供未发泡塑料材料的光滑和有光泽的表面光洁度的产品。

    Multi-function cup lid
    2.
    发明授权
    Multi-function cup lid 失效
    多功能杯盖

    公开(公告)号:US5090584A

    公开(公告)日:1992-02-25

    申请号:US661217

    申请日:1991-02-27

    IPC分类号: B65D43/02 B65D43/10 B65D47/08

    摘要: Disclosed is a disposable container lid for releasably mounting to a disposable container. The lid includes a central portion having a rim engaging means about the circumference of the central portion. An access strip is provided by a pair of tear impressions extending from the rim engaging means to a hinge means located in the central portion. By breaking the tear impressions, the access strip can be pivoted back from the hinge means to create an access opening through the lid. The central portion of the lid has a primary slit therein which is preferably arcuate. At each end of the primary slit there is a tab forming slit, each forming an inwardly directed retaining flap. A deflection flap is formed by the combination of the primary slit and the tab forming slits. To lock the access strip in a non-interfering position, it is folded back and pushed against the central portion of the lid thereby causing the deflection flap to deflect down toward the contents of the container. The small retaining flaps spring past the sides of the access strip and thus overlap such sides holding the access strip in abutting, face-to-face position with the deflection flap. The access strip can be released from the retaining flaps merely by directing upward force against the access strip causing the retaining flaps to deflect upward and spring past the access strip. The access strip can then be reseated on the rim of the cup if desired.

    摘要翻译: 公开了一种用于可释放地安装到一次性容器的一次性容器盖。 所述盖包括具有围绕所述中心部分的圆周的边缘接合装置的中心部分。 通过从边缘接合装置延伸到位于中心部分中的铰链装置的一对撕裂印模提供通路条。 通过破坏撕裂印痕,接近条可以从铰链装置向后枢转以形成通过盖子的通道开口。 盖的中心部分具有其中的主狭缝,其优选地是弓形的。 在主狭缝的每个端部处都有一个凸片形成的狭缝,每个形成一个向内的保持挡板。 通过主狭缝和突片形成狭缝的组合形成偏转片。 为了将访问条锁定在非干扰位置,它被折回并且被推靠在盖的中心部分上,从而导致偏转翼片朝向容器的内容物偏转。 小的保持翼片弹簧穿过通路条的侧面,并且因此与保持接近条的侧面重叠,这些侧面与偏转翼片抵接,面对面地位置。 只有通过将向上的力引导到接近条带上,才能使保持翼片从保持翼片释放,导致保持翼片向上偏转并弹簧穿过接近条带。 如果需要,接入条可以重新安装在杯的边缘上。

    Apparatus for scoring rigid plastic sheet material
    3.
    发明授权
    Apparatus for scoring rigid plastic sheet material 失效
    用于刻划刚性塑料片材的设备

    公开(公告)号:US4877391A

    公开(公告)日:1989-10-31

    申请号:US233583

    申请日:1988-08-18

    摘要: An apparatus for forming frangible score lines in rigid plastic sheet material. The apparatus utilizes a flat surface having a serrated edge having points and notches. The rigid plastic sheet material is laid on the flat surface. A scoring means is positioned to strike downwardly on the sheet material whereby the points of the serrated edge of the flat surface will extend into the sheet material a distance further than the notches of the serrated edge to thus form a corrugated fracturable score line in the plastic sheet material. The apparatus is useful for forming score lines in lids for drink cups intended for fast food service.

    摘要翻译: 用于在刚性塑料片材中形成易碎刻痕线的装置。 该装置使用具有锯齿状边缘的平坦表面,其具有点和凹口。 刚性塑料片材铺设在平面上。 定位装置被定位成在片材上向下冲击,由此平坦表面的锯齿状边缘的点将延伸到片材中比锯齿形边缘的切口更远的距离,从而在塑料中形成波纹可分割刻痕线 片材。 该装置用于在用于快餐服务的饮料杯的盖子中形成刻痕线。

    Synthetic plastics article manufacturing system
    5.
    发明授权
    Synthetic plastics article manufacturing system 失效
    合成塑料制品制造系统

    公开(公告)号:US4235579A

    公开(公告)日:1980-11-25

    申请号:US904734

    申请日:1978-05-11

    摘要: An extruder or the like, continuously issues a heated plastics material in the form of an elongated web, which is moved sequentially to molding and article severing stations. The products cut out are moved to lip rolling printing and drying stations. Articles such as containers are formed by the mechanism which includes a turntable assembly for varying the length of the web travel path between an extruder and forming station to thereby control the residual heat in the web at the time of forming, and a molding drum with improved plug assist devices which are air powered and also include air emitting ports to move the web into intimate engagement with the mold cavities as a final forming step under controlled conditions which assure that the pressure is applied at exactly the proper time. The system includes a lip curling system which feeds containers severed from the web in stepwise fashion through forming roll sections and releases them in timed relation to indexible mandrels. The system further includes a printing assembly which utilizes offset printing mechanism in combination with the mandrels, and associated ink drying mechanism, to print the containers prior to releasing or ejecting them.

    摘要翻译: 挤出机等连续地发出以细长腹板的形式加热的塑料材料,其被顺序地移动到模制和制品切割站。 将切割的产品移动到唇滚动印刷和烘干站。 诸如容器的物品由包括用于改变挤出机和成型站之间的幅材行进路径的长度的转台组件的机构形成,从而在成型时控制幅材中的残余热量,以及具有改进的成型鼓 空气动力的插头辅助装置,还包括空气排放口,用于在受控的条件下将网移动到与模腔紧密接合作为最后的成形步骤,以确保在正确的时间施加压力。 该系统包括唇形卷曲系统,其通过成形辊部分以逐步的方式对从卷筒纸上分离的容器进行供料,并以与可分度的心轴定时关系来释放它们。 该系统还包括一个印刷组件,该打印组件利用胶印机构与心轴组合,以及相关联的油墨干燥机构,以便在释放或弹出它们之前打印容器。

    Plastic closure with score lines
    6.
    发明授权
    Plastic closure with score lines 失效
    塑胶封口与刻痕线

    公开(公告)号:US4828137A

    公开(公告)日:1989-05-09

    申请号:US233555

    申请日:1988-08-18

    摘要: According to this invention, there is provided a method and apparatus for making an article, such as a lid for a plastic food container made of plastic having frangible score lines. The article is formed of a sheet of plastic material having substantially constant thickness with score lines defining an offset portion thereof which is connected to the remaining sheet material by a segment that is thinner than said sheet material and being rupturable for the removal of said offset portion. The periphery of the inwardly directed portion of said offset portion overlaps the periphery of the outwardly directed portion of the offset portion on the opposite side of said sheet material. The fracturable score lines are corrugated along their length by a plurality of successive grooves and ridges with the grooves extending deeper into the material than the ridges.

    摘要翻译: 根据本发明,提供了一种用于制造物品的方法和装置,例如具有易碎刻痕线的由塑料制成的塑料食品容器的盖子。 该制品由具有基本上恒定厚度的塑料材料制成,刻痕线限定其偏移部分,该片材的偏移部分通过比所述片材材料更薄的片段连接到剩余的片材材料,并且可破裂以去除所述偏移部分 。 所述偏移部分的向内指向部分的周边与所述片材的相对侧上的偏移部分的向外指向部分的周边重叠。 可断裂刻痕线沿着它们的长度被多个连续的凹槽和脊部波纹,其中凹槽比脊部更深地延伸到材料中。

    Method for scoring rigid plastic sheet material
    7.
    发明授权
    Method for scoring rigid plastic sheet material 失效
    硬质塑料板材评分方法

    公开(公告)号:US4818461A

    公开(公告)日:1989-04-04

    申请号:US895206

    申请日:1986-08-11

    摘要: A method for making an article, such as a plastic food container lid having frangible score lines. The article is formed of a sheet of plastic material having substantially constant thickness with score lines defining an offset portion thereof which is connected to the remaining sheet material by a segment that is thinner than the sheet material and being rupturable for the removal of the offset portion. The periphery of the inwardly directed portion of the offset portion overlaps the periphery of the outwardly directed portion of the offset portion on the opposite side of the sheet material. The fracturable score lines are corrugated along their length by a plurality of successive grooves and ridges with the grooves extending deeper into the material than the ridges.

    摘要翻译: 一种制造物品的方法,例如具有易碎刻痕线的塑料食品容器盖。 该制品由具有基本上恒定厚度的塑料材料制成,刻痕线限定其偏移部分,该片材的偏移部分通过比片材材料薄的片段连接到剩余的片材材料,并且可破裂以去除偏移部分 。 偏移部分的向内指向部分的周边与片材的相对侧上的偏移部分的向外指向部分的周边重叠。 可断裂刻痕线沿着它们的长度被多个连续的凹槽和脊部波纹,其中凹槽比脊部更深地延伸到材料中。