Composite closure and method of manufacture
US4782968A · kind A · utility
33Cited by
8References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 20, 1987 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | Apr 20, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S215/02
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved composite closure is described which has a cover portion which is at least partially plastic and a molded plastic ring portion. The molded ring also permits the cover to be inserted from the top of the ring rather than just upwardly over the ring threads and permits a plastic to plastic engagement or attachment of cover and ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.