Push-to-fit earplug having an array of cavities
US10660797B2 · kind B2 · utility
0Cited by
38References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 2014 |
| Grant date | May 26, 2020 |
| Priority date | — |
| Expiry date | Jul 26, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F11/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.