公开(公告)号：US06219850B1

公开(公告)日：2001-04-24

申请号：US09325827

申请日：1999-06-04

申请人： P. David Halstead ,  Cherie F. Alexander ,  Thad Ide

发明人： P. David Halstead ,  Cherie F. Alexander ,  Thad Ide

IPC分类号： A42B306

CPC分类号： A42B3/065 ,  A42B3/06 ,  A42B3/128 ,  A42B3/28

摘要： A helmet which includes a substantially rigid shell having a shell thickness defined by a substantially continuous exterior surface spaced apart from a substantially continuous interior surface. A one-piece first shock attenuating member is positioned adjacent to and in substantially in contact with portions of the interior surface of the shell. The first shock attenuating member has a first thickness and a first compression deflection. A plurality of discrete second shock attenuating members are positioned adjacent to portions of the first shock attenuating member and adjacent to and in substantially in contact with portions of the interior surface of the shell. Each second shock attenuating member has a second thickness and a second density, with the second thickness being greater than the first thickness and the second compression deflection being less than the first compression deflection.

摘要翻译： 一种头盔，其包括具有壳体厚度的基本上刚性的壳体，所述壳体厚度由基本上连续的外表面限定，所述外表面与基本连续的内表面间隔开。 单件式第一减震元件位于与壳体的内表面的部分相邻并基本接触的位置。 第一减震元件具有第一厚度和第一压缩偏转。 多个离散的第二冲击衰减构件被定位成与第一减震构件的部分相邻并且与壳的内表面的部分相邻并基本上接触。 每个第二冲击衰减构件具有第二厚度和第二密度，其中第二厚度大于第一厚度，第二压缩挠度小于第一压缩挠度。

公开(公告)号：US06326077B1

公开(公告)日：2001-12-04

申请号：US09100349

申请日：1998-06-19

申请人： Roberto Monaci

发明人： Roberto Monaci

IPC分类号： A42B306

摘要： A composite material with high resistance to impact energy, comprising an expanded polymer selected among polystyrene, polypropylene, copolymer of polyphenylene oxide and polystyrene and mixtures thereof, dispersed in a resin chosen among melaminic resin, phenolic resin and polyurethane resin and mixtures thereof.

摘要翻译： 具有高耐冲击能的复合材料，其包含分散在选自三聚氰胺树脂，酚醛树脂和聚氨酯树脂的树脂中的聚苯乙烯，聚丙烯，聚苯醚和聚苯乙烯的共聚物及其混合物的发泡聚合物及其混合物。

公开(公告)号：US06305028B1

公开(公告)日：2001-10-23

申请号：US09251959

申请日：1999-02-17

申请人： Chang-San Lin

发明人： Chang-San Lin

IPC分类号： A42B306

CPC分类号： B44F1/02 ,  A42B3/061 ,  A42C2/00 ,  B29C45/14811 ,  B29C2045/14237 ,  B29C2791/001 ,  B29K2705/00 ,  B29K2995/002 ,  B29K2995/0026 ,  B29L2031/4821 ,  B44C1/24 ,  B44C3/02 ,  B44C5/0446 ,  B44C5/0453

摘要： Protective headwear (e.g., helmet) is provided with patterned reflective surfaces that are highly reflective and resist rough handling. The reflective surface is produced by sealing a reflective sheet between a base and a cover layer that includes a pattern, to protect the reflective sheet from the environment. The protective headwear can reflect light in different colors. A method for cost-effectively producing reflective objects by injection molding is also provided.

摘要翻译： 保护性头饰（例如，头盔）设置有高度反射性且抗拒粗糙处理的图案化反射表面。 反射表面通过将反射片材密封在基底和包括图案的覆盖层之间来产生，以保护反射片材免受环境影响。 保护性头饰可以反射不同颜色的光。 还提供了通过注塑成本有效地制造反射物体的方法。