Invention Grant
- Patent Title: Selective attenuating earplug
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Application No.: US15195296Application Date: 2016-06-28
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Publication No.: US10441472B2Publication Date: 2019-10-15
- Inventor: Jacob H. Ely
- 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; Dana M. Ehrich
- Main IPC: A61F11/08
- IPC: A61F11/08 ; A61F11/12
Abstract:
A selective attenuating earplug is provided. In an exemplary embodiment, a selective attenuating earplug includes a switch adjustable between a first position and a second position, and the switch includes at least one cantilever spring arm.
Public/Granted literature
- US20160302975A1 Selective Attenuating Earplug Public/Granted day:2016-10-20
Information query
IPC分类:
