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    Airbag cushion exhibiting low seam usage and simultaneously high available inflation volume
    31.
    发明授权
    Airbag cushion exhibiting low seam usage and simultaneously high available inflation volume 失效
    气囊垫显示出低接缝使用率，同时高可用的通风量

    公开(公告)号：US06472033B1

    公开(公告)日：2002-10-29

    申请号：US09365372

    申请日：1999-07-30

    Applicant: Ramesh Keshavaraj

    Inventor： Ramesh Keshavaraj

    IPC: B60R2116

    CPC classification number: B60R21/231 ,  B60R2021/23571 ,  Y10T428/13 ,  Y10T428/1334 ,  Y10T428/1341 ,  Y10T428/1345 ,  Y10T428/1362

    Abstract: The present invention relates to an airbag cushion which exhibits a low amount of seam usage (in order to attach at least two fabric panels or portions of a panel together) in correlation to an overall high amount of available inflation airspace within the cushion itself. These correlated elements are now combined for the first time in what is defined as an effective seam usage index (being the quotient of the length of overall seams on the cushions and the available inflation airspace volume). The inventive cushion must have at least one substantially straight seam and must possess an effective seam usage factor of less than about 0.11. A cushion exhibiting such a low seam usage factor and also comprising an integrated looped pocket for the disposition of an inflator can is also provided as well as an overall vehicle restraint system comprising the inventive airbag cushion.

    Abstract translation: 本发明涉及一种气囊垫，其与衬垫本身内的总体高量的可用膨胀空气空间相关，其具有低的接缝使用量（为了将至少两个织物面板或面板的一部分连接在一起）。 这些相关元素现在首次在定义为有效接缝使用指数（即垫子上的整体接缝的长度和可用的通风空间体积）的商家中组合。 本发明的衬垫必须具有至少一个基本上直的接缝，并且必须具有小于约0.11的有效接缝使用系数。 还提供了一种表现出这样低的接缝使用系数并且还包括用于设置充气机罐的集成环形袋的衬垫以及包括本发明的气囊垫的整体车辆限制系统。

    Air bag tether construction
    33.
    发明授权
    Air bag tether construction 有权
    气袋系绳结构

    公开(公告)号：US06315324B1

    公开(公告)日：2001-11-13

    申请号：US09549284

    申请日：2000-04-14

    Applicant: Ramesh Keshavaraj

    Inventor： Ramesh Keshavaraj

    IPC: B60R2120

    CPC classification number: B60R21/233 ,  B60R21/2338 ,  B60R2021/23382 ,  Y10T442/322

    Abstract: The present invention relates to air bag tethers and to a pattern-wise arrangement of such tethers in relation to air bag panels on a fabric blank, thus resulting in increased fabric utilization per tether and an overall cost savings per finished air bag. The air bag tether system of the present invention is comprised of two congruent tether panels that are joined to one another and to a respective air bag panel. In a preferred embodiment, the tether panel that is attached to the face panel of the air bag is cut in alignment with the warp and the fill of the fabric blank, while the rear tether panel that is attached to the rear panel of the air bag is cut on the bias with respect to the warp and the fill of the fabric blank. The two tether panels are then connected to one another to form a functional tether system. This two-piece construction, with one bias-cut piece, decreases the amount of fabric that is used in the manufacture of the air bag and tethers, while providing sufficient elongation for the tether system to be functional.

    Abstract translation: 本发明涉及气囊系绳以及这种系绳相对于织物坯料上的气囊面板的图案排列，从而导致每个系链增加的织物利用率和每个成品气囊的整体成本节省。 本发明的气囊系链系统由两个相互连接的系绳板组成，并分别连接到相应的气囊面板上。 在优选实施例中，附接到气囊的面板的系绳面板被切割成与织物坯料的经纱和填充物对齐，而连接到安全气囊的后面板的后连接板 相对于织物坯料的翘曲和填充物的偏压被切割。 然后将两个系绳板彼此连接以形成功能性系绳系统。 这种具有一个偏斜切片的两件式结构减少了用于制造气囊和系绳的织物的量，同时为系绳系统提供足够的伸长率。

    Airbag fabric possessing very low cover factor
    35.
    再颁专利
    Airbag fabric possessing very low cover factor 有权
    安全气囊织物具有非常低的覆盖系数

    公开(公告)号：USRE42458E1

    公开(公告)日：2011-06-14

    申请号：US10066738

    申请日：2002-02-04

    Applicant: Ramesh Keshavaraj

    Inventor： Ramesh Keshavaraj

    IPC: B32B5/08

    CPC classification number: B60R21/235 ,  B32B27/12 ,  B32B27/40 ,  B60R2021/23514 ,  D03D1/02 ,  D06N3/0002 ,  D06N3/14 ,  Y10T428/1307 ,  Y10T428/1314 ,  Y10T428/1317 ,  Y10T428/1321 ,  Y10T428/1362 ,  Y10T442/2139 ,  Y10T442/2762 ,  Y10T442/2811 ,  Y10T442/2861 ,  Y10T442/2893 ,  Y10T442/30 ,  Y10T442/3179 ,  Y10T442/3301

    Abstract: The present invention relates to an airbag fabric which is woven in such a manner as to possess a cover factor of less than about 1900 but which simultaneously, through the presence of a film (laminate) or coating, possesses an extremely low air permeability. The utilization of such a loosely constructed fabric within airbag cushions has heretofore not been possible, even with the application of standard airbag coatings (such as silicones) over the fabric surface since such coatings with not easily remain in contact over the loosely constructed fabric surface (i.e., the coating would leak through the fabric). The coupling of a low cover factor fabric with a laminate film (or with a coating wherein the cover factor is at least 1600), however, solves such a problem and permits the utilization of inexpensively produced woven fabrics within airbag applications.

    Abstract translation: 本发明涉及一种气囊织物，其以这样的方式编织，即具有小于约1900的覆盖系数，但是通过膜（层压体）或涂层的存在同时具有极低的透气性。 迄今为止，即使将织物表面上的标准气囊涂层（例如硅树脂）应用于织物表面上也是不可能的，因为这样的涂层不容易在松散构造的织物表面上保持接触 即涂层会渗透织物）。 然而，低覆盖因子织物与层压膜（或覆盖因子至少为1600的涂层）的耦合解决了这样的问题，并且允许在气囊应用中利用廉价生产的织造织物。

    Method of making a coated airbag
    36.
    发明授权
    Method of making a coated airbag 有权
    制作涂层气囊的方法

    公开(公告)号：US07736702B1

    公开(公告)日：2010-06-15

    申请号：US12589222

    申请日：2009-10-20

    Applicant: Ramesh Keshavaraj

    Inventor： Ramesh Keshavaraj

    IPC: B05D3/02

    CPC classification number: B60R21/235 ,  B60R2021/23514 ,  C09D175/00 ,  Y10T442/3366

    Abstract: Coating compositions, which are used as a monolithic coating layer for airbags. The coating compositions include a combination of urethanes which are blended together. At least one of the urethane components provides gas-retaining properties and the other provides the aging stability. The gas-retaining urethane may be characterized as having high tensile strength at break, high elongation at break, and a 100% modulus less than 1,200 psi. The aging stability urethane has a polycarbonate backbone as result of a manufacturing process in which a polycarbonate diol is reacted with an isocyanate. The resulting coating compositions, when applied as a single layer to an airbag fabric, result in an airbag with good gas retention and aging stability.

    Abstract translation: 涂料组合物，用作安全气囊的整体涂层。 涂料组合物包括混合在一起的聚氨酯的组合。 至少一种聚氨酯组分提供气体保持性质，另一种提供了老化稳定性。 气体保留氨基甲酸酯的特征在于具有高断裂拉伸强度，高断裂伸长率和小于1,200psi的100％模量。 老化稳定性聚氨酯由聚碳酸酯二醇与异氰酸酯反应的制造方法得到聚碳酸酯骨架。 所得到的涂料组合物当作为气囊织物单层使用时，导致气囊保持性和老化稳定性良好的气囊。

    Airbag coatings made with hybrid resin compositions
    39.
    发明授权
    Airbag coatings made with hybrid resin compositions 有权
    用混合树脂组合物制成的气囊涂层

    公开(公告)号：US07543843B2

    公开(公告)日：2009-06-09

    申请号：US11503007

    申请日：2006-08-10

    Applicant: Ramesh Keshavaraj ,  Shulong Li

    Inventor： Ramesh Keshavaraj ,  Shulong Li

    IPC: B60R21/04

    CPC classification number: C09D175/06 ,  B60R21/235 ,  B60R2021/23514 ,  C08G2270/00 ,  D06N3/14 ,  D06N3/142 ,  Y10T428/31663 ,  Y10T442/2139 ,  C08L2666/20 ,  C08L2666/04

    Abstract: The present disclosure is directed to the use of specific hybrid resins as airbag coatings. Preferably, the polymers used to create these hybrid resins, as described herein, are urethanes blended with acrylates, vinyls, silicones, and combinations thereof, where at least one of the components has a glass transition temperature of 20° C. or less. The urethanes are preferably of the polycarbonate, polytetramethyleneglycol, silicon-based diol, or olefin-based diol type. The hybrid resins may be produced in an aqueous dispersion, in a solvent, or by mixing the polymers together where one polymer is dissolved directly into a second polymer to form a continuous matrix. The resulting hybrid resins exhibit a tensile strength of at least 1,000 p.s.i. and an elongation at break of at least about 200%.

    Abstract translation: 本公开涉及使用特定的混合树脂作为气囊涂层。 优选地，如本文所述用于产生这些杂化树脂的聚合物是与丙烯酸酯，乙烯基，硅氧烷及其组合共混的聚氨酯，其中至少一种组分的玻璃化转变温度为20℃或更低。 所述聚氨酯优选为聚碳酸酯，聚四亚甲基二醇，硅系二醇或烯烃类二醇型。 杂化树脂可以在水性分散体，溶剂中或通过将聚合物混合在一起，其中一种聚合物直接溶解到第二聚合物中以形成连续的基体。 所得混合树脂的拉伸强度至少为1000p.s.i。 断裂伸长率至少约为200％。

    Airbag with floating tethers
    40.
    发明授权
    Airbag with floating tethers 失效
    安全气囊与浮动系绳

    公开(公告)号：US07393011B2

    公开(公告)日：2008-07-01

    申请号：US11361382

    申请日：2006-02-24

    Applicant: Ramesh Keshavaraj

    Inventor： Ramesh Keshavaraj

    IPC: B60R21/16 ,  B60R21/239

    CPC classification number: B60R21/239 ,  B60R21/206 ,  B60R21/215 ,  B60R21/2338 ,  B60R2021/0051 ,  B60R2021/21525 ,  B60R2021/23169 ,  B60R2021/23382

    Abstract: An airbag assembly including one or more elongate tether elements that extend through vent openings along travel paths from anchoring locations such that the tether elements extend in sliding relation through the vent openings. The gas emission capacity of the vent openings may be adjustable based on internal cushion pressure.

    Abstract translation: 一种安全气囊组件，包括一个或多个细长系绳元件，其沿着行进路径从锚定位置延伸穿过通气口，使得系绳元件以滑动关系延伸穿过通气孔。 排气口的气体排放能力可以根据内部缓冲压力进行调节。

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