Caterpillar made of elastomer material

    公开(公告)号:US06609770B2

    公开(公告)日:2003-08-26

    申请号:US09915900

    申请日:2001-07-26

    申请人: Gilbert Gauthier

    发明人: Gilbert Gauthier

    IPC分类号: B62D5500

    摘要: A caterpillar made from elastomer material and having a plurality of guide teeth projecting from the inside surface of the caterpillar, the said guide teeth having lateral faces and front and rear faces in the longitudinal direction of the caterpillar, with at least one insert arranged inside each guide tooth, the caterpillar being characterized in that each insert located inside each guide tooth has a generally hollow shape enclosing a free volume to absorb in large measure the expansion of the elastomer material of the guide tooth during the molding and cross-linking of the material.

    Process for molding a make-up composition
    73.
    再颁专利
    Process for molding a make-up composition 有权
    用于模制化妆组合物的方法

    公开(公告)号:USRE38185E1

    公开(公告)日:2003-07-15

    申请号:US09643853

    申请日:2000-08-22

    申请人: Gérard Joulia

    发明人: Gérard Joulia

    IPC分类号: A61K700

    摘要: Process for moulding a make-up composition in a mould comprising a concave moulding surface forming the base of the mould and a bottom forming the upper component of the mould and closing off the space bounded by the said moulding surface, the composition being cast in the said mould in fluid form and subsequently solidifying to form a demouldable solid product capable of being packaged, in which the said composition is cast in a mould (1) whose bottom consists at least partly of a sheet (2) of open-cell plastic foam, so as partly to impregnate the said foam sheet (2) with the said composition and in which, after solidifying of the said composition, a moulded product consisting of the solidified composition and of the foam sheet which is bonded to it and which forms its support, is demoulded by removing the moulding surface (1).

    摘要翻译: 在模具中模制化妆组合物的方法,包括形成模具底部的凹形模制表面和形成模具的上部组件的底部并且封闭由所述模制表面限定的空间,所述组合物被浇注在 所述模具为流体形式,随后固化以形成能够包装的可脱模固体产品,其中所述组合物在模具(1)中铸造,所述模具(1)的底部至少部分由开孔塑料泡沫(2)的片材(2) ,从而部分地用所述组合物浸渍所述泡沫片(2),并且其中在固化所述组合物之后,将由固化的组合物和泡沫片组成的模制产品粘合到其上并形成其 支撑件通过移除模制表面(1)而脱模。

    Surface smoothing of stereolithographically formed 3-D objects

    公开(公告)号:US20030003405A1

    公开(公告)日:2003-01-02

    申请号:US10230897

    申请日:2002-08-29

    IPC分类号: G03F007/20

    摘要: A stereolithographic method and apparatus for forming polymeric structures comprising a plurality of overlying layers, each layer formed by polymerizing a thin layer of liquid photopolymer on a prior layer. Crevices formed at the layer interfaces are filled by a stereolithographic method comprising lifting the multilayered structure from the liquid photopolymer, draining excess liquid therefrom, tilting the structure to provide an acute angle of incidence between an incident radiation beam and a side wall of the object, and applying radiation to the crevice to polymerize at least the surface of a quantity of liquid photopolymer therein. The structure may then be subjected to a separate final full cure to fully harden the structure. An exemplary use is the packaging of electronic components and the like.

    Compression moulding method
    75.
    发明授权
    Compression moulding method 失效
    压缩成型法

    公开(公告)号:US06451242B2

    公开(公告)日:2002-09-17

    申请号:US09844297

    申请日:2001-04-30

    申请人: Paul Andrew Kelly

    发明人: Paul Andrew Kelly

    IPC分类号: B29C3312

    摘要: A method of compression moulding an article from rubber moulding material incorporating hollow inserts avoids damage to the inserts. Where compression moulding takes place in an enclosed mould at an elevated pressure, the pressure can distort and damage the hollow inserts especially if they are of plastics. In order to avoid such distortion and damage, the method compresses during moulding creating a pressure in a cavity of the insert which substantially balances the pressure exerted on the exterior of the insert by the rubber moulding material in the mould. The pressure in the cavity is preferably produced by introducing some rubber moulding material into the cavity of the insert. This material becomes pressurised during moulding and supports the interior of the insert.

    摘要翻译: 由具有中空插入件的橡胶模制材料压制模制制品的方法避免了对插入物的损坏。 在压缩模制在高压下在封闭模具中进行压缩的情况下,压力可能会变形并损坏中空插件,特别是如果它们是塑料。 为了避免这种变形和损坏,该方法在模制期间压缩,从而在插入件的空腔中产生压力,该压力基本上平衡由模具中的橡胶模制材料施加在插入件的外部上的压力。 空腔中的压力优选通过将一些橡胶模制材料引入到插入件的空腔中来产生。 这种材料在模制过程中变得加压,并支撑插入件的内部。

    Plastic package for an integrated electronic semiconductor device
    76.
    发明授权
    Plastic package for an integrated electronic semiconductor device 失效
    用于集成电子半导体器件的塑料封装

    公开(公告)号:US06388338B1

    公开(公告)日:2002-05-14

    申请号:US08431312

    申请日:1995-04-28

    IPC分类号: H01L2302

    摘要: The invention relates to a plastic package for an integrated electronic semiconductor device to be encapsulated within a plastic body, the plastic bodyes formed using the step of molding said plastic body so as to fully enclose a semiconductor element, on which an integrated electronic circuit has been formed and which is placed onto a metal leadframe connected electrically to said integrated electronic circuit and carrying a plurality of terminal leads for external electric connection. To compensate the outward bends uncontrollably undergone by the plastic body due to thermal stresses during the molding step, a mold is used which has a cavity delimited by perimeter walls which define a concave-shaped volume. Preferably, at least one of the large walls, a bottom wall and a top wall, has a curvature inwardly of said mold. cavity. The curvature values are predetermined to compensate any outward curvature undergone by corresponding surfaces of said plastic body during the molding step. The plastic package thus obtained exhibits, at the end of the molding step, a body having a diversified thickness which is at a maximum near the edges and at a minimum in the central portion; the difference between these thicknesses is proportional to the amount of the relative deformation undergone by the central regions of the body surfaces with respect to the regions near the edges. The plastic body is within ideal overall dimensions.

    摘要翻译: 本发明涉及一种用于封装在塑料体内的集成电子半导体器件的塑料封装体,所述塑料体通过模制所述塑料体以完全包围半导体元件的步骤形成,所述半导体元件在其上已经集成有电子电路 并且被放置在与所述集成电子电路电连接的金属引线框架上并且承载用于外部电连接的多个端子引线。 为了在模制步骤期间由于热应力不可控制地补偿由塑料体引起的向外弯曲,使用具有限定了凹形体积的周边壁限定的空腔的模具。 优选地,大壁,底壁和顶壁中的至少一个具有所述模具内部的曲率。 腔。 预定曲率值以补偿在模制步骤期间由所述塑料体的相应表面经历的任何向外弯曲。 由此获得的塑料包装在模制步骤结束时显示出具有多个厚度的主体,该主体在中心部分处在边缘附近最小并且最小; 这些厚度之间的差异与身体表面的中心区域相对于靠近边缘的区域所经受的相对变形量成正比。 塑料体在理想的整体尺寸之内。

    Compression moulding method
    78.
    发明授权
    Compression moulding method 失效
    压缩成型法

    公开(公告)号:US06248278B1

    公开(公告)日:2001-06-19

    申请号:US09191225

    申请日:1998-11-13

    申请人: Paul Andrew Kelly

    发明人: Paul Andrew Kelly

    IPC分类号: B29C3312

    摘要: A method of compression moulding an article from rubber moulding material incorporating hollow inserts avoids damage to the inserts. Where compression moulding takes place in an enclosed mould at an elevated pressure, the pressure can distort and damage the hollow inserts especially if they are of plastics. In order to avoid such distortion and damage, the method compresses during moulding creating a pressure in a cavity of the insert which substantially balances the pressure exerted on the exterior of the insert by the rubber moulding material in the mould. The pressure in the cavity is preferably produced by introducing some rubber moulding material into the cavity of the insert. This material becomes pressurised during moulding and supports the interior of the insert.

    摘要翻译: 由具有中空插入件的橡胶模制材料压制模制制品的方法避免了对插入物的损坏。 在压缩模制在高压下在封闭模具中进行压缩的情况下,压力可能会变形并损坏中空插件,特别是如果它们是塑料。 为了避免这种变形和损坏,该方法在模制过程中压缩,从而在插入件的空腔中产生压力,其基本上平衡由模具中的橡胶模制材料施加在插入件的外部上的压力。 空腔中的压力优选通过将一些橡胶模制材料引入到插入件的空腔中来产生。 这种材料在模制过程中变得加压,并支撑插入件的内部。

    Method of lens casting without using a gasket
    79.
    发明授权
    Method of lens casting without using a gasket 失效
    不使用垫片的镜头铸造方法

    公开(公告)号:US6099764A

    公开(公告)日:2000-08-08

    申请号:US273292

    申请日:1999-03-19

    申请人: Kai C. Su Richard Lu

    发明人: Kai C. Su Richard Lu

    摘要: An apparatus and method for casting lens without using a gasket that can be used to form all powers and geometric shapes of lenses. An elastomeric strip is used to wrap around the edges of two molds to form a sleeve-like structure, which in turn cooperates with the molds to form a molding cavity. Moreover, this sleeve-like structure does not crumple or shrink during the lens polymerization process. Instead, it allows the molds to slide axially within it to compensate for any shrinkage that occurs during the lens polymerization process.

    摘要翻译: 一种用于铸造透镜而不使用可用于形成透镜的所有功率和几何形状的垫圈的装置和方法。 弹性带用于包裹两个模具的边缘以形成套筒状结构,该结构又与模具配合以形成模制腔。 此外,这种套筒状结构在透镜聚合过程中不会折皱或收缩。 相反,它允许模具在其内轴向滑动以补偿在透镜聚合过程中发生的任何收缩。

    Process for producing molded article having a hollow portion from a
thermoplastic resin
    80.
    发明授权
    Process for producing molded article having a hollow portion from a thermoplastic resin 失效
    由热塑性树脂生产具有中空部分的模制品的方法

    公开(公告)号:US5922270A

    公开(公告)日:1999-07-13

    申请号:US803090

    申请日:1997-02-20

    摘要: A process for producing a hollow article in an assembly comprising first and second mold members movable relative to each other between a closed position in which an inner surface of the assembly defines a cavity and an open position. The cavity is shaped to define a corresponding configuration to the article. According to this process, a charge containing at least one molten thermoplastic resin is supplied at the first and/or second mold member while the mold members are not in the closed position. The first mold member is moved relative to the second mold member into the closed position so as to define the cavity, and a first clamping force F1 is applied to the first and second mold members. The charge is then compressed within the mold cavity under the first clamping force F1. Thereafter, the clamping force is reduced from the first clamping force F1 to a second clamping force F2 before the molten thermoplastic resin in the mold cavity has completely solidified. A compressed gas is supplied into at least one unsolidified portion of the molten thermoplastic resin subsequent to the step of closing the mold members and before the molten thermoplastic resin in the mold cavity has completely solidified. The molten thermoplastic resin can then be cooled in the mold cavity and solidified while supplying the compressed gas.

    摘要翻译: 一种用于在组件中制造中空制品的方法,包括第一和第二模具构件,所述第一模具构件和第二模具构件在关闭位置之间相对移动,在所述关闭位置中,所述组件的内表面限定空腔和打开位置。 腔被成形为限定了物品的相应配置。 根据该方法,在模具部件不处于关闭位置的同时,在第一和/或第二模具部件供给含有至少一种熔融热塑性树脂的电荷。 第一模具构件相对于第二模具构件移动到关闭位置以限定空腔,并且第一夹紧力F1施加到第一和第二模具构件。 然后在第一夹紧力F1下在模腔内压制电荷。 此后,在模腔内的熔融热塑性树脂完全固化之前,夹紧力从第一夹紧力F1减小到第二夹紧力F2。 在关闭模具构件的步骤之后,并且在模腔中的熔融热塑性树脂完全固化之前,将压缩气体供应到熔融热塑性树脂的至少一个未固化部分中。 然后熔融的热塑性树脂可以在模腔中冷却并在供应压缩气体的同时固化。