Linerless closure
US4566603A · kind A · utility
26Cited by
13References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1984 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Jul 12, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D41/0428
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A linerless closure for use in sealing plastic bottles and jars is disclosed. The linerless closure has a series of concentric annular sealing rings for sealing contact with a bottle mouth. A ridge located between an inner and outer sealing flange provides for a minimum of two sealing surfaces and a maximum of three sealing surfaces with a bottle mouth. A buttress flange spaced inwardly of the inner sealing flange provides additional strength to the inner sealing flange for guiding an irregular bottle mouth to a sealing engagement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.