Title:
複数のキャビティのアレイを有する押込ばめ耳栓
Document Type and Number:
Japanese Patent JP6807990
Kind Code:
B2
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 tip region positioned rearward of the leading end, and a longitudinal axis extending between the leading end and the base end. An array of cavities is positioned within the tip region and spaced around the longitudinal axis and provides a collapsible volume.
Inventors:
Hummer, Jeffrey Elle.
Teaters, Kenneth F.
Thomas, Ravi
Teaters, Kenneth F.
Thomas, Ravi
Application Number:
JP2019129717A
Publication Date:
January 06, 2021
Filing Date:
July 12, 2019
Export Citation:
Assignee:
3M INNOVATIVE PROPERTIES COMPANY
International Classes:
A61F11/08; G10K11/16
Domestic Patent References:
| JP2011524240A | ||||
| JP2010530776A |
Foreign References:
| US20050274568 | ||||
| US4314553 |
Attorney, Agent or Firm:
Taro Akazawa
Wakako Nomura
Tsukuda Seigen
Keiichi Asamura
Wakako Nomura
Tsukuda Seigen
Keiichi Asamura