Invention Grant
- Patent Title: Push-in earplug
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Application No.: US15693997Application Date: 2017-09-01
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Publication No.: US10966867B2Publication Date: 2021-04-06
- Inventor: James P. Endle , Jeffrey L. Hamer , Alan R. Seville , Kenneth F. Teeters
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee: 3M INNOVATIVE PROPERTIES COMPANY
- Current Assignee Address: US MN St. Paul
- Agent Katherine M. Scholz; Dena M. Ehrich; Christopher D. Karlen
- Main IPC: A61F11/08
- IPC: A61F11/08 ; B29C44/50 ; C08J9/10 ; C08J9/32 ; B29C44/02 ; B29C44/04 ; B29C44/32 ; B29C44/08 ; B29C44/26 ; B29L31/00 ; B29K23/00 ; B29K105/04
Abstract:
A push-in earplug including an elongate core and outer layer is disclosed. The outer layer includes a sound attenuating portion having a first average density and a stem portion having a second average density, and the second average density is greater than the first average density.
Public/Granted literature
- US20170360615A1 PUSH-IN EARPLUG Public/Granted day:2017-12-21
Information query
IPC分类:
