公开(公告)号：US06560832B2

公开(公告)日：2003-05-13

申请号：US09813632

申请日：2001-03-21

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）的商量中组合。 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。

公开(公告)号：US06502853B2

公开(公告)日：2003-01-07

申请号：US09836034

申请日：2001-04-17

Applicant: Ramesh Keshavaraj

Inventor： Ramesh Keshavaraj

IPC: B60R2124

CPC classification number: B60R21/23 ,  B60R21/232 ,  B60R2021/23504 ,  B60R2021/23571

Abstract: An airbag having low gas permeability characteristics. The airbag is formed from two separate layers of material, an inner layer having low air permeability and an outer strength layer enclosing the inner layer, where the layers are only attached together along seam lines. The inner layer is made from a film material, preferably urethane. The outer layer is formed from a fabric.

公开(公告)号：US5855393A

公开(公告)日：1999-01-05

申请号：US916190

申请日：1997-08-21

Applicant: Ramesh Keshavaraj

Inventor： Ramesh Keshavaraj

IPC: B60R21/16 ,  B60R21/235 ,  B60R21/237

CPC classification number: B60R21/231 ,  B60R21/237 ,  B60R2021/23509 ,  B60R21/235

Abstract: An inflatable restraint cushion for use in transportation passive restraint systems is provided. The inflatable restraint cushion according to the invention is of a foldable construction having two panels with generally straight line geometric profiles. The first panel is of generally a pyramidal configuration while the second panel is of an elongated rectangular configuration joined to and extending from the apex of the first panel. Mouth forming slits are cut into the base of the first panel, thereby dividing the base into right and left segments. The right and left segments of the base are folded towards one another and are seamed together. The second panel is thereafter folded in loop fashion towards the first panel and a single seam is used to join the mating edges of the first and second panels.

Abstract translation: 提供一种用于运输被动约束系统的充气约束垫。 根据本发明的充气约束衬垫是具有两个具有大致直线几何轮廓的面板的折叠结构。 第一面板通常是金字塔形构造，而第二面板是与第一面板的顶点接合并从第一面板的顶点延伸的细长的矩形构造。 口形成狭缝被切割到第一面板的基部中，从而将基部分成左右段。 基部的右侧和左侧部分彼此折叠并缝合在一起。 然后，第二面板以环形方式朝向第一面板折叠，并且使用单个接缝来连接第一和第二面板的配合边缘。

公开(公告)号：US08007630B1

公开(公告)日：2011-08-30

申请号：US13099711

申请日：2011-05-03

Applicant: Ramesh Keshavaraj ,  Dany F. Michiels

Inventor： Ramesh Keshavaraj ,  Dany F. Michiels

IPC: C09J5/02

CPC classification number: B60R21/235 ,  B60R2021/23514 ,  Y10T428/1352 ,  Y10T428/1359 ,  Y10T428/1362 ,  Y10T428/1379 ,  Y10T428/31725 ,  Y10T428/31779 ,  Y10T442/2139

Abstract: An inflatable automotive protective cushion and method of formation. The protective cushion includes a multilayer film coating with an adhesive layer and an overlying barrier layer. The adhesive layer is adapted to bond to a textile substrate and the barrier layer is adapted to block air permeability.

Abstract translation: 一种充气汽车保护垫及其形成方法。 保护垫包括具有粘合剂层和上覆阻挡层的多层膜涂层。 粘合剂层适于结合到织物基底，并且阻挡层适于阻挡透气性。

公开(公告)号：US07951437B2

公开(公告)日：2011-05-31

申请号：US11525303

申请日：2006-09-22

Applicant: Ramesh Keshavaraj ,  Dany F. Michiels

Inventor： Ramesh Keshavaraj ,  Dany F. Michiels

IPC: B29D22/00 ,  B29D23/00 ,  B32B1/08

CPC classification number: B60R21/235 ,  B60R2021/23514 ,  Y10T428/1352 ,  Y10T428/1359 ,  Y10T428/1362 ,  Y10T428/1379 ,  Y10T428/31725 ,  Y10T428/31779 ,  Y10T442/2139

Abstract: An inflatable automotive protective cushion and method of formation. The protective cushion includes a multilayer film coating with an adhesive layer and an overlying barrier layer. The adhesive layer is adapted to bond to a textile substrate and the barrier layer is adapted to block air permeability.

Abstract translation: 一种充气汽车保护垫及其形成方法。 保护垫包括具有粘合剂层和上覆阻挡层的多层膜涂层。 粘合剂层适于结合到织物基底，并且阻挡层适于阻挡透气性。

公开(公告)号：US07737059B1

公开(公告)日：2010-06-15

申请号：US12388934

申请日：2009-02-19

Applicant: Ramesh Keshavaraj

Inventor： Ramesh Keshavaraj

IPC: B32B5/18

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。

公开(公告)号：US07354063B2

公开(公告)日：2008-04-08

申请号：US10796726

申请日：2004-03-09

Applicant: Ramesh Keshavaraj

Inventor： Ramesh Keshavaraj

IPC: B60R21/16

CPC classification number: B60R21/231 ,  B60R21/239 ,  B60R2021/23533

Abstract: An airbag construction for a vehicle is described. The construction utilizes non-circular polygon shaped panels, which provide greater nesting efficiency than previously achieved by comparable airbags using round panels. In addition, the construction enables the airbag to take full advantage of the strength of the yarns forming the fabric, and the energy absorption of the fabric construction, enabling the use of lower tenacity yarns and/or materials at comparable levels of performance.

Abstract translation: 对车辆的气囊结构进行说明。 该结构采用非圆形多边形面板，与先前使用圆形面板的可比安全气囊相比，提供更大的嵌套效率。 此外，该结构使得气囊能够充分利用形成织物的纱线的强度和织物结构的能量吸收，使得能够使用具有相当水平的较低强度的纱线和/或材料。

公开(公告)号：US20070237961A1

公开(公告)日：2007-10-11

申请号：US10950974

申请日：2004-09-27

Applicant: Shulong Li ,  Derek Bowen ,  Charles Willbanks ,  Ramesh Keshavaraj ,  David Hildreth

Inventor： Shulong Li ,  Derek Bowen ,  Charles Willbanks ,  Ramesh Keshavaraj ,  David Hildreth

IPC: B32B9/04

CPC classification number: B32B27/12 ,  B32B5/024 ,  B32B5/026 ,  B32B7/12 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B27/40 ,  B32B2255/02 ,  B32B2255/26 ,  B32B2262/0269 ,  B32B2305/186 ,  B32B2305/188 ,  B32B2307/584 ,  B32B2323/00 ,  B32B2367/00 ,  B32B2377/00 ,  B32B2571/00 ,  B60R21/232 ,  B60R21/235 ,  B60R2021/0018 ,  B60R2021/23514 ,  B60R2021/23547 ,  D03D1/02 ,  D06N3/0002 ,  D06N3/125 ,  D06N3/128 ,  D06N3/14 ,  Y10T428/1366 ,  Y10T428/31504 ,  Y10T442/2861

Abstract: Typical road surfaces are concrete, and gravel filled asphalt. They are very abrasive to fabrics that slide on those surfaces. For the new side impact curtain-type airbag, in a rollover situation, the airbag needs to protect the occupant from directly contacting the road hazard and should not deflate quickly or break when sliding on such road surfaces. We have found that a layer of elastomer can provide much better abrasion resistance than a layer of heavy industrial fabric. A Jacquard bag coated with 1.2 oz/yd2 polyurethane showed significant increase in air leakage rate after 5 cycles of concrete sliding abrasion. A 3 mil thick polyurethane film was laminated to the coated Jacquard woven airbag. After 110 cycles of sliding abrasion using the same concrete, no visual damage or change In bag leakage was observed. This finding indicates surprisingly better abrasion resistance of a thin elastomer film than a heavy industrial fabric.

Abstract translation: 典型的路面是混凝土，沥青填充沥青。 对于在这些表面上滑动的织物，它们是非常磨蚀的。 对于新型侧面碰撞式安全气囊，在翻车情况下，安全气囊需要保护乘客免受直接接触道路危险，不得在路面滑动时快速放气或断裂。 我们发现一层弹性体可以提供比一层重工业织物更好的耐磨性。 涂有1.2盎司/平方米的聚氨酯的提花袋在混凝土滑动磨损5个循环后显示出空气泄漏率的显着增加。 将3密耳厚的聚氨酯膜层压到涂覆的提花编织气囊上。 在使用相同混凝土的110次滑动磨损循环后，没有观察到视觉损伤或变化。 这个发现表明，比重工业织物，薄的弹性体膜具有惊人的更好的耐磨性。

公开(公告)号：US07261927B2

公开(公告)日：2007-08-28

申请号：US09953769

申请日：2001-09-17

Applicant: Ramesh Keshavaraj

Inventor： Ramesh Keshavaraj

IPC: B32B1/02 ,  B60R21/16

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。

公开(公告)号：US20060163853A1

公开(公告)日：2006-07-27

申请号：US11040383

申请日：2005-01-21

Applicant: Ramesh Keshavaraj

Inventor： Ramesh Keshavaraj

IPC: B60R21/233

CPC classification number: B60R21/235 ,  B29C65/483 ,  B29C65/5021 ,  B29C65/5057 ,  B29C65/62 ,  B29C65/72 ,  B29C65/8215 ,  B29C65/8223 ,  B29C66/133 ,  B29C66/43 ,  B29C66/729 ,  B29L2022/027 ,  B60R2021/23576 ,  B60R2021/2358 ,  B60R2021/23595

Abstract: An inflatable air bag structure formed from panels joined together along one or more sewn seams. The sewn seams are sealed at the interior between the adjoined layers by a low modulus, high elongation sealant surrounding at least a portion of the sewing threads. The sealant fails under tension in a cohesive manner by tearing through the interior of the sealant layer while remaining adhered to the fabric thereby maintaining gas blockage when the seam is placed in tension.

Abstract translation: 一种由沿着一个或多个缝合缝接合在一起的面板形成的可充气气囊结构。 缝合接缝通过围绕至少一部分缝纫线的低模量，高伸长率密封件在相邻层之间的内部密封。 密封剂在张力下以粘结的方式通过撕裂通过密封剂层的内部而保持粘附到织物上而在张力下失效，从而当接缝处于张力时保持气体阻塞。