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    • 3. 发明申请
    • Multifunctional periodic cellular solids and the method of making same
    • 多功能周期细胞固体及其制备方法
    • US20040154252A1
    • 2004-08-12
    • US10479833
    • 2003-12-05
    • David J. SypeckHaydn N.G. Wadley
    • E04B002/00
    • B29D24/00E04C2/3405E04C2002/3422E04C2002/3488Y10T428/24174Y10T428/24314
    • Methods of making truss-based periodic cellular solids that have improved structural properties and multifunctional design. Many materials (metals, ceramics, glasses, polymers, composites and even semiconductors) can be shaped into cellular, truss-like architectures with open, closed or mixed types of porosity and then very uniformly arranged in controlled, three-dimensional space-filling arrays. The truss-like elements do not necessarily have a constant cross-section, nor are they necessarily straight or solid throughout (they could be hollow). Their cross sections can be circular, square, triangular, I-beam or other shapes of interest depending on multifunctional needs. When bonded together by solid state, liquid phase, pressing or other methods at points of contact, a cellular structure of highly repeatable cell geometry and few imperfections results. The bonds hold the truss elements together in a desired configuration, allow load to be efficiently transferred amongst them and make the resulting structure significantly more rigid when bent, compressed or sheared. These constructed cellular solids offer a broad range of multifunctional structural uses with a tremendous freedom for choosing the truss type, orientation and distribution. Multiple materials can be intermixed.
    • 制备具有改进的结构特性和多功能设计的基于桁架的周期性细胞固体的方法。 许多材料(金属,陶瓷,玻璃,聚合物,复合材料,甚至半导体)可以被形成具有开放,封闭或混合类型的孔隙的细胞,桁架状结构,然后非常均匀地布置在受控的三维空间填充阵列 。 桁架元件不一定具有恒定的横截面,也不一定是直的或整体的(它们可以是中空的)。 根据多功能需要,它们的截面可以是圆形,正方形,三角形,工字梁或其他感兴趣的形状。 当通过固态,液相,压制或其他方法在接触点处结合在一起时,可以获得高度可重复的细胞几何形状的细胞结构和很少的缺陷。 这些键将桁架元件以期望的构型保持在一起,允许负载在它们之间有效地传递,并且当弯曲,压缩或剪切时使得所得到的结构显着更加刚性。 这些构造的细胞固体提供广泛的多功能结构用途,具有选择桁架类型,取向和分布的巨大自由度。 可以混合多种材料。
    • 5. 发明授权
    • Lightweight molded protective helmet
    • 轻型防护头盔
    • US4845786A
    • 1989-07-11
    • US66755
    • 1987-06-24
    • Michele A. Chiarella
    • Michele A. Chiarella
    • A42B3/00A42B3/06A42B3/28B29C51/00B29D24/00
    • A42B3/065A42B3/066A42B3/28B29C51/006B29D24/00B29L2031/4821
    • A lightweight molded protective helmet for use by cyclists and preferably produced by stretch-blow molding a moldable plastic material. The helmet includes outer and inner shells or surfaces each having a plurailty of openings therein, with the surfaces being connected together by walls of the openings formed integral with the surfaces of the helmet. The openings in the helmet surfaces can have any shape such as circular or elongated, and can be made substantially perpendicular or inclined to the surfaces. Also if desired, the space between the substantially parallel outer and inner surfaces can be filled with a plastic energy-absorbing foam material to provide a composite helmet construction.
    • 一种用于骑自行车者使用的轻型模制防护头盔,优选通过拉伸吹塑成型塑料材料制成。 头盔包括外壳和内壳,每个外壳或表面各具有多个开口,其表面通过与头盔表面形成一体形成的开口的壁连接在一起。 头盔表面中的开口可以具有任何形状,例如圆形或细长形状,并且可以基本垂直于或相对于表面倾斜。 此外,如果需要,大体上平行的外表面和内表面之间的空间可以用塑料吸收能量的泡沫材料填充以提供复合头盔结构。
    • 10. 发明授权
    • Apparatus and method for the production of a composite structure with an
intermediate three-dimensional textile
    • 用于生产具有中间三维织物的复合结构的装置和方法
    • US5580412A
    • 1996-12-03
    • US507999
    • 1995-07-27
    • Marco Fantino
    • Marco Fantino
    • B29C70/06B29C43/20B29C70/08B29C70/24B29C70/46B29D24/00B32B5/02B32B27/04B32B37/02B32B37/16B32B38/08B29C65/00
    • B32B38/08B29C70/08B29C70/24B29C70/467B29D24/00B32B37/10B32B38/1858
    • A method and an apparatus for the production of a three-dimensional textile (3), wherein the textile (3) is formed from two sheets of textile (5, 6) placed face to face and connected together by a plurality of threads (10), impregnated with resin and inserted between two layers (16, 17) so as to form a layered structure (1). This layered structure (1) is inserted between two dies (25, 26) of a heated press which is subsequently closed to allow the resin impregnating the structure to distribute itself uniformly. The layers (16, 17) are then attached by vacuum to the faces of the dies (25, 26) which are then opened through a first controlled distance within the limit of the elastic recovery of the three-dimensional textile (3). The outermost layers of the structure (1) are then polymerized by heating the dies (24, 26) while the resin impregnating the threads (10) remains in a plastic state. The lower die (25) is then released in the plane in which it lies and the dies (25, 26) are then moved apart through a second distance so as to stretch the treads of the three-dimensional textile and align them substantially vertically; the floating die (25, 26) is then locked. The dies (25, 26) are then moved away from each other to a predetermined distance to extend the threads (1) completely and the press (28) is kept in this position until all the resin has polymerized completely, the structure hardening in the position assumed.
    • 一种用于生产三维织物(3)的方法和装置,其中织物(3)由两片织物(5,6)形成,所述两片织物(5,6)面对面地放置并通过多根螺纹(10 ),用树脂浸渍并插入两层(16,17)之间,以形成层状结构(1)。 该层状结构(1)插入加热压机的两个模具(25,26)之间,随后将其封闭,以允许树脂浸渍结构自身均匀分布。 然后,这些层(16,17)通过真空附接到模具(25,26)的表面,然后在三维织物(3)的弹性恢复极限内通过第一受控距离打开。 然后,当浸渍螺纹(10)的树脂保持塑性状态时,通过加热模具(24,26)使结构(1)的最外层聚合。 然后将下模(25)在其所在的平面中释放,然后模具(25,26)移动离开第二距离,以便拉伸三维织物的胎面并将它们基本垂直地对准; 然后锁定浮动模具(25,26)。 然后将模具(25,26)彼此远离地移动到预定距离,以使纱线(1)完全延伸,并且压力机(28)保持在该位置,直到所有树脂完全聚合,结构在 假定职位