Title:
成形発泡体製押込嵌め式耳栓、方法及び装置
Document Type and Number:
Japanese Patent JP6979273
Kind Code:
B2
Abstract:
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.
Inventors:
Teaters, Kenneth F.
Hamer, Jeffrey Elle.
Hamer, Jeffrey Elle.
Application Number:
JP2016545883A
Publication Date:
December 08, 2021
Filing Date:
January 06, 2015
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
A61F11/10
Domestic Patent References:
| JP2013103127A | ||||
| JP2005537859A |
Foreign References:
| WO2007044766A1 |
Attorney, Agent or Firm:
Taro Akazawa
Wakako Nomura
Tsukuda Seigen
Keiichi Asamura
Wakako Nomura
Tsukuda Seigen
Keiichi Asamura
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