Mouthpiece
US4664109A · kind A · utility
27Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1985 |
| Grant date | May 12, 1987 |
| Priority date | — |
| Expiry date | Mar 22, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2071/086
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A mouthpiece for use with a breathing device has a pliable lip flange which fits between the lips and teeth of the user and a pair of bite lugs which extend from the lip flange between the user's teeth and wherein the upper and lower bite surfaces of the lugs are constituted by a plurality of resilient projections which are individually compressed by the teeth of the diver as he bites down on the lugs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.