Restricting flow in drinking containers
US6976604B2 · kind B2 · utility
35Cited by
43References
79Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2001 |
| Grant date | Dec 20, 2005 |
| Priority date | — |
| Expiry date | Feb 27, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2543/00842
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A disposable child's drinking cup has a lid with a drinking spout defining multiple open holes sized to resist leakage in the absence of suction, such as by the development of surface tension at the holes, and to allow flow when suction is applied. The holes are formed during molding of the lid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.