Sealing strip for ear plugs and the like
US5996584A · kind A · utility
23Cited by
9References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Mar 5, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F11/08
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A composite reusable sound attenuating or transmitting device, especially an ear plug, is formed from a core, about which is adhered a strip of slow recovery foam. After each use of the device, the strip of foam is generally removed and discarded; typically, a new strip is applied the next time the device is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.