Molded Foam Push-To-Fit Earplug, Method And Devices

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专利权人:

3M INNOVATIVE PROPERTIES COMPANY

发明人:

Kenneth F. Teeters,Jeffrey L. Hamer

申请号：

US15109828

公开号：

US20160324692A1

申请日:

2015.01.06

申请国别(地区):

US

年份:

2016

代理人:

摘要：

A push-to-fit type earplug (100) including a sound attenuating portion (113) and a semi-rigid stem portion (114) having a relatively greater stiffness than the sound attenuating portion is disclosed. The sound attenuating portion and stem portion are made of a closed-cell, slow-recovery foam.

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中国工程科技知识中心

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http://www.ckcest.cn/home/