Drinking vessel having a mouthpiece with a flexible portion
US6745915B2 · kind B2 · utility
58Cited by
17References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2001 |
| Grant date | Jun 8, 2004 |
| Priority date | — |
| Expiry date | Aug 14, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61J9/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A drinking vessel includes a cover and a mouthpiece, the mouthpiece having at least a flexible portion which in its unflexed state engages a plug extending up through the mouthpiece. When the flexible portion is flexed, for example by suction or pressing or biting with lips or teeth the flexible portion flexes out of engagement with the plug, forming a liquid passage. As a result a self-sealing drinking vessel is provided which provides liquid on user demand.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.