Pasteurizable container closure
US4813557A · kind A · utility
19Cited by
20References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1985 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Jul 19, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S215/901
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A closure for bottles is disclosed which includes an internal radius support disk or cylinder for positioning within the bottle mouth to enable the bottle to resist radial inward deformation when subjected to pasteurization or other post-bottling heat treatment. The closure can be formed by coining a conventional aluminum roll-on cap blank using a pressure block having a central land projectable into the mouth of the bottle to form the support disk or cylinder from the top of the cap blank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.