Dispensing closure seals
US4282991A · kind A · utility
24Cited by
12References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1980 |
| Grant date | Aug 11, 1981 |
| Priority date | — |
| Expiry date | Sep 8, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/305
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Effective, easily manufactured seals for dispensing closures in which a spout is rotatably mounted on a cap can be created using an edge on an external surface of the cap to engage an end of the spout. This edge serves to create a seal. The end of the spout and the external surface adjacent to the edge have related cross-sectional configurations such that in all positions of the spout the end engages the edge in the same manner so as to form a seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.