Earplug device
US4671265A · kind A · utility
44Cited by
6References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1985 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | Nov 26, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F11/12
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An earplug device includes a headband with earplugs attached to the ends thereof. The earplugs have a head portion and a shank portion, the latter with its rear end joined to the associated headband end. The shank portion has a stiffened middle section and is articulately connected on either side thereof respectively to the head portion and headband end to form a doubly articulated shank configuration. The head portion is thus given the opportunity of coacting in the best possible way with the auditory canal of an ear, and to a substantial degree independently of the attitude of the headband.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.