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    Process for manufacturing a food container by extrusion and vacuum forming
    81.
    发明授权
    Process for manufacturing a food container by extrusion and vacuum forming 失效
    通过挤出和真空成型制造食品容器的方法

    公开(公告)号：US4529464A

    公开(公告)日：1985-07-16

    申请号：US312664

    申请日：1981-10-19

    申请人： Michael D. Jones

    发明人： Michael D. Jones

    IPC分类号： B29C51/02 ,  B29C51/16 ,  B29C51/24 ,  B65D1/36 ,  B65D81/34 ,  B29C17/04 ,  B32B1/02 ,  B32B1/04

    CPC分类号： B65D81/3453 ,  B29C51/162 ,  B29C51/24 ,  B65D1/36 ,  B29C2791/001 ,  B29C51/02

    摘要： Disclosed is a container especially adapted for use in storing and heating comestibles intended for final preparation in microwave ovens. The container comprises a molded pulp tray, having a plastic film, preferably a polyester, adhered to its product-contacting surfaces. The container exhibits high strength and excellent product protection, but yet is low in cost. The process for making the container takes advantage of the porous nature of the pulp tray by drawing a vacuum directly through the tray to draw a film of heated plastic into adhering contact. The film is preferably extruded as the tray, carried in a vacuum mold, passes directly under the extruder.

    摘要翻译： 公开了一种容器，特别适用于储存和加热用于最终制备微波炉的食物。 容器包括模制的纸浆托盘，其具有粘附到其产品接触表面的塑料膜，优选聚酯。 该容器具有高强度和优异的产品保护性，但成本低廉。 制造容器的过程通过直接通过托盘抽真空来将纸浆托盘的多孔性质利用，从而将加热的塑料膜吸附成粘合的接触。 该薄膜优选作为托盘挤出，在真空模具中携带，直接通过挤出机。

    Method for making a plastic container
    82.
    发明授权
    Method for making a plastic container 失效
    制造塑料容器的方法

    公开(公告)号：US4519977A

    公开(公告)日：1985-05-28

    申请号：US480308

    申请日：1983-03-30

    申请人： Kiyoshi Kawaguchi ,  Muneki Yamada

    发明人： Kiyoshi Kawaguchi ,  Muneki Yamada

    IPC分类号： B29C43/02 ,  B29C43/36 ,  B29C51/02 ,  B29C51/04 ,  B29C51/10 ,  B29C17/03 ,  B29C17/04 ,  B29D9/04

    CPC分类号： B29C43/361 ,  B29C51/02 ,  B29C51/04 ,  B29B2911/14593 ,  B29C2043/3283 ,  B29C2043/3618 ,  B29C2043/3631 ,  B29C2043/5833 ,  B29C2791/007 ,  B29C33/20 ,  B29C43/02 ,  B29C51/10 ,  Y10S383/908 ,  Y10T428/1397

    摘要： A tubular plastic container having a molecularly oriented sidewall portion is made by bringing the peripheral portion of a solid blank in engagement with the shoulder portion of a die, introducing the blank into a cavity of the die while compressing with a first and second plungers, such that in the former stage of the introduction, the speed is relatively low and the pressure is relatively high, and then the speed is increased at a controlled rate and the pressure is decreased, thereby forming a hollow molded piece, and then expanding the molded piece to bringing the sidewall portion thereof into contact with the inner surface of the cavity. In the similar manner a tubular plastic container having a sidewall portion formed with thick wall portions axially extending and having a relatively large wall thickness and a large curvature, and thin wall portions axially extending and having a relatively small wall thickness and a small curvature which are formed alternately in the circumferential direction, is made by using the second plunger having recesses corresponding to the thick wall portions and having open edge portions.

    摘要翻译： 具有分子取向侧壁部分的管状塑料容器通过使实心坯料的周边部分与模具的肩部接合而制成，其将坯料引入模具的空腔中，同时用第一和第二柱塞压缩， 在前期的介绍中，速度相对较低，压力相对较高，然后速度以受控的速度增加，压力降低，从而形成中空的模制件，然后将模制件 使其侧壁部分与空腔的内表面接触。 以类似的方式，管状塑料容器具有侧壁部分，其形成有轴向延伸并且具有相对较大壁厚和大曲率的厚壁部分，以及轴向延伸并具有较小壁厚和小曲率的薄壁部分 通过使用具有对应于厚壁部分的凹部并具有开口边缘部分的凹部的第二柱塞来制造在圆周方向上交替。

    Plastic blank structure
    84.
    发明授权
    Plastic blank structure 失效
    塑料空白结构

    公开(公告)号：US4419412A

    公开(公告)日：1983-12-06

    申请号：US373925

    申请日：1982-05-03

    申请人： Robert M. Gross

    发明人： Robert M. Gross

    IPC分类号： B26D1/38 ,  B29B11/02 ,  B29B11/10 ,  B29B11/14 ,  B29C37/00 ,  B29C51/02 ,  B32B9/04

    CPC分类号： B29B11/14 ,  B26D1/38 ,  B29B11/02 ,  B29B11/10 ,  B29C47/0023 ,  B29C47/003 ,  B29C47/0033 ,  B29C51/02 ,  B29C37/0057 ,  B29C47/0054 ,  B29L2009/00 ,  Y10T428/23929 ,  Y10T428/31909

    摘要： An article and a method are disclosed for substantially removing surfaces defects that are attendant with plastic blanks formed by cutting out squares from sheet stock material that are subsequently forged by means of non-melt, high pressure or solid-phase forming of preforms and thereafter thermoforming said preforms into containers. The blank itself comprises a tabular body having a pair of major faces located substantially parallel to one another, minor faces integrally formed and extending outwardly from said major faces, said minor faces presenting a smooth surface commensurate to that of said major faces, and a vertical portion integrally formed with said minor faces and defining an outer peripheral band or line having an unsmooth surface. A method of forming said plastic blank comprises providing a sheet of polymeric material, pressing lines of demarkation upon said sheet, severing said sheet within said lines to separate and cut said sheet into individual blank, whereby each blank is formed having a smooth surface provided by said pressing step and a rough surface provided by said severing step, thereafter forging said blank to a predetermined preform and reforming said preform to a container free of any imperfection.

    摘要翻译： 公开了一种用于基本上去除表面缺陷的制品和方法，所述缺陷是由通过从预成型件的非熔体，高压或固相形成随后锻造的片材原料切出正方形而形成的塑料坯料，然后热成型 所述预成型件形成容器。 坯料本身包括具有一对基本上彼此平行的主面的平板体，小面整体形成并从所述主面向外延伸，所述小面具有与所述主面相当的平滑表面，垂直方向 部分与所述小面一体地形成，并且限定具有不平滑表面的外周带或线。 形成所述塑料坯料的方法包括提供聚合物材料片材，在所述片材上挤压划线，在所述线材内切断所述片材以将所述片材分离并切割成单个毛坯，由此形成每个坯料具有由 所述压制步骤和由所述切割步骤提供的粗糙表面，然后将所述坯料锻造到预定的预成型件，并将所述预成型件重整成没有任何缺陷的容器。

    Preform structure
    85.
    发明授权
    Preform structure 失效
    预制结构

    公开(公告)号：US4419319A

    公开(公告)日：1983-12-06

    申请号：US291540

    申请日：1981-08-10

    申请人： Virgil C. Reynolds, Jr. ,  Daryl D. Cerny

    发明人： Virgil C. Reynolds, Jr. ,  Daryl D. Cerny

    IPC分类号： B29C53/00 ,  B29B9/00 ,  B29B11/00 ,  B29C45/00 ,  B29C51/02 ,  B29C51/14 ,  B29C51/18 ,  B29C51/42 ,  B29C53/24 ,  B29C17/03 ,  B29C3/00

    CPC分类号： B29C51/02 ,  B29C51/14 ,  Y10S264/64

    摘要： A multilayered preform is disclosed for making an open mouth container. The preform has a container-forming portion comprising a circular central area for making the bottom of the container, an annular sidewall-forming portion for the container surrounding add integral with the outer periphery of the central area, a flange connected to the annular portion, said flange having the contour of the rim of the container, said container-forming portion having a predetermined volume to meet dimensional requirements, and a retaining member having an enlarged portion. The preform is an improved structure that is readily adaptable for making containers from the so-called solid state pressure forming process.

    摘要翻译： 公开了一种用于制造开口容器的多层预成型件。 预型件具有容器形成部分，其包括用于制造容器底部的圆形中心区域，用于容器的环形侧壁形成部分，其围绕与中心区域的外周边成一体，连接到环形部分的凸缘， 所述凸缘具有容器的边缘的轮廓，所述容器形成部分具有预定的体积以满足尺寸要求，以及具有扩大部分的保持构件。 预成型件是改进的结构，其易于适用于从所谓的固态压力成形工艺制造容器。

    Method of making unfestooned plastic containers from polygonal blanks
    88.
    发明授权
    Method of making unfestooned plastic containers from polygonal blanks 失效
    从多边形坯料制造不带塑料的塑料容器的方法

    公开(公告)号：US4340557A

    公开(公告)日：1982-07-20

    申请号：US216747

    申请日：1980-12-16

    申请人： Robert M. Gross

    发明人： Robert M. Gross

    IPC分类号： B26D1/38 ,  B29B11/02 ,  B29B11/10 ,  B29B11/14 ,  B29C37/00 ,  B29C47/00 ,  B29C51/02 ,  B29C59/04 ,  B29C69/00 ,  B29D23/10

    CPC分类号： B29C69/001 ,  B26D1/38 ,  B29B11/02 ,  B29B11/10 ,  B29B11/14 ,  B29C51/02 ,  B29C59/04 ,  B29C2793/0063 ,  B29C37/0057 ,  B29C47/00 ,  B29C47/0019 ,  B29C47/0021 ,  B29C47/004 ,  B29C47/0054 ,  B29C47/0061 ,  B29C47/0066 ,  B29L2009/00 ,  B29L2031/104

    摘要： A method is disclosed for substantially removing surface defects that are attendant with plastic blanks formed by cutting out squares from sheet stock material that are subsequently forged by means of non-melt, high pressure or solid-phase forming of preforms and thereafter thermoforming said preforms into containers. The blank itself comprises a tabular body having a pair of major faces located substantially parallel to one another, minor faces integrally formed and extending outwardly from said major faces, said minor faces presenting a smooth surface commensurate to that of said major faces, and a vertical portion integrally formed with said minor faces and defining an outer peripheral band or line having an unsmooth surface. A method of forming said plastic blank comprises providing a sheet of polymeric material, pressing lines of demarkation upon said sheet, severing said sheet within said lines to separate and cut said sheet into individual blank, whereby each blank is formed having a smooth surface provided by said pressing step and a rough surface provided by said severing step, thereafter forging said blank to a predetermined preform and reforming said preform to a container free of any imperfection.

    摘要翻译： 公开了一种用于基本上去除表面缺陷的方法，所述表面缺陷伴随着通过从片料原料切出正方形而形成的塑料坯料，所述材料随后通过预成型件的非熔体，高压或固相形成而锻造，然后将所述预成型件热成型为 容器 坯料本身包括具有一对基本上彼此平行的主面的平板体，小面整体形成并从所述主面向外延伸，所述小面具有与所述主面相当的平滑表面，垂直方向 部分与所述小面一体地形成，并且限定具有不平滑表面的外周带或线。 形成所述塑料坯料的方法包括提供聚合物材料片材，在所述片材上挤压划线，在所述线材内切断所述片材以将所述片材分离并切割成单个毛坯，由此形成每个坯料具有由 所述压制步骤和由所述切割步骤提供的粗糙表面，然后将所述坯料锻造到预定的预成型件，并将所述预成型件重整成没有任何缺陷的容器。

    Plastic preform
    89.
    发明授权
    Plastic preform 失效
    塑料预制件

    公开(公告)号：US4286000A

    公开(公告)日：1981-08-25

    申请号：US88229

    申请日：1979-10-25

    申请人： John F. Dye ,  Earl L. Lowe

    发明人： John F. Dye ,  Earl L. Lowe

    IPC分类号： B29C51/00 ,  B29C45/00 ,  B29C49/00 ,  B29C51/02 ,  B29C51/10 ,  B29C51/14 ,  B29C61/00 ,  B29D22/00 ,  B29L9/00 ,  B29L22/00 ,  B32B3/02 ,  B29C23/00 ,  B32B1/04

    CPC分类号： B29C51/14 ,  B29C51/02 ,  Y10T428/21 ,  Y10T428/24479 ,  Y10T428/24777 ,  Y10T428/2495 ,  Y10T428/3192

    摘要： A preformed plastic structure for making open-mouth plastic containers is disclosed. The structure is an oriented preform having a base defined by an inner circular portion and an outer circular portion situated parallel to the outer circular portion and spaced therefrom. The radius of the outer circular portion is larger than the radius of the inner circular portion. The preform is further provided with an outwardly extending annular member integral with the base and tapering therefrom, the member forming an angle of between about 2.degree. to about 30.degree. from the base, and a flange integral with the annular member and extending radially outwardly and having a cross-section configuration of substantially the rim of the finished container. The preform is well suited for forming multilayered containers.

    摘要翻译： 公开了一种用于制作开口塑料容器的预制塑料结构。 该结构是具有由内部圆形部分和平行于外部圆形部分定位并与之隔开的外部圆形部分限定的基部的定向预制件。 外圆部的半径大于内圆部的半径。 预型件还设置有与基部一体并向其逐渐变细的向外延伸的环形构件，该构件与基座形成约2°至约30°的角度，以及与环形构件成一体并且径向向外延伸的凸缘， 具有基本上完成的容器的边缘的横截面构造。 预成型件非常适用于形成多层容器。