公开(公告)号：US20150335489A1

公开(公告)日：2015-11-26

申请号：US14282252

申请日：2014-05-20

Applicant: 3M Innovative Properties Company

Inventor： Jeffrey L. Hamer ,  Kenneth F. Teeters ,  Ravi Thomas

IPC: A61F11/08

CPC classification number: A61F11/08 ,  A61F2011/085 ,  A61F2230/0023 ,  A61F2230/005 ,  A61F2240/001 ,  A61F2250/0036

Abstract: The present description provides an earplug. One exemplary earplug described herein includes a stem and a sound attenuating body attached to the stem. The sound attenuating body includes a leading end, a base end, a longitudinal axis extending between the leading end and the base end, and a flange extending at least partially over the stem and having an exterior flange surface and an interior flange surface having a plurality of one or both of protrusions or recesses. The earplug further includes a flange cavity including a continuous volume around a perimeter of the stem between the interior flange surface and the stem. A distance between the interior and exterior flange surfaces varies around a perimeter of the flange at a plane intersecting the flange transverse to the longitudinal axis.

Abstract translation: 本说明书提供耳塞。 本文所述的一个示例性耳塞包括连接到杆上的杆和声音衰减体。 声音衰减体包括前端，基端，在前端和基端之间延伸的纵轴，以及至少部分地延伸在杆上并具有外凸缘表面的凸缘和具有多个 一个或两个突起或凹槽。 所述耳塞还包括法兰腔，所述凸缘腔在所述内部凸缘表面和所述杆之间包括围绕所述杆的周边的连续容积。 内外凸缘表面之间的距离在与纵向轴线横切的凸缘相交的平面周围围绕凸缘的周边变化。