Button-type tamper indicating metal closure
US5833087A · kind A · utility
5Cited by
10References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1994 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Oct 28, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2401/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A tamper indicating closure cap for a vacuum sealed container includes a metal end panel, a rim portion formed in the outer margin of the end panel and a skirt depending from the rim portion. The metal end panel includes a central tamper indicating area comprising a tamper indicating button and a generally concave shaped annular region extending radially outwardly toward the rim portion. The tamper indicating area is adapted to defect axially between a non-tamper indicating position and a tamper indicating position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.