Baffled earplug
US7210484B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2006 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Mar 3, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F11/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An earplug (10) with a body front portion (22) for insertion into a person's ear canal, has a pocket (30) to increase comfort and is constructed to enhance noise attenuation. The pocket, which allows easier compression of the body front portion for increased comfort, has a plurality of baffles (50) that attenuate sound better than a pocket without baffles. The pocket with baffles is formed by a core pin (80) that lies in an injection mold (82) and that forms the pocket, the core pin having a plurality of slots (81) that form the baffles. The pocket includes a rear portion (36) that forms a wide passage, and the earplug includes a blocker portion (90) that partially or completely closes off the rear pocket passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.