Hermetic closure
US4002516A · kind A · utility
72Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 1975 |
| Grant date | Jan 11, 1977 |
| Priority date | — |
| Expiry date | Sep 24, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49872
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A hermetic closure cap of resilient thermoplastic material constructed so as to be removably securable in an aperture made in a rigid sheet. This cap is retained by a normally non-deformable but laterally retractable part pressing against the edges of the rigid sheet defining the aperture and which cap is maintained in position before opening by a removable locking element which is inserted into a slot in the cap that is of similar cross-section to that of the locking element. The sealing cap thus designed can be used, for example, in cans containing a beverage under pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.