Drinking vessel
US4442948A · kind A · utility
22Cited by
15References
18Claims
0Family size
Inventors
Key dates
| Filing date | Sep 16, 1982 |
| Grant date | Apr 17, 1984 |
| Priority date | — |
| Expiry date | Sep 16, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47G19/2227
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A drinking vessel formed of a separable outer shell and inner shell which form a fluid flow path therebetween when the inner shell is received in the outer shell. Removal of the inner shell renders the flow path accessible for cleaning. The outer shell is transparent in the vicinity of the flow path to display fluid flow through the path. Embodiments having various configurations of flow paths are disclosed. An embodiment including a mechanism for puncturing a disposable inner shell to provide access between the flow path and interior of the inner shell is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.