Tamper evident pull ring pour spout
US5133486A · kind A · utility
38Cited by
16References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1991 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Jan 18, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/746
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tamper evident pull ring pour spout includes a tubular spout having an outer threaded surface, an inner surface, and a lower flange for attaching the spout to the container, a pull ring integrally formed in inner surface of the spout and configured to seal the spout, a finger tab disposed on the pull ring and adapted to facilitate the removal of the pull ring from the spout and a threaded cap dimensioned to threadably engage the spout and to reclose the closure upon the removal of the pull ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.