Multi-part dispensing closure having a frangible connecting web
US4408700A · kind A · utility
33Cited by
19References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 1981 |
| Grant date | Oct 11, 1983 |
| Priority date | — |
| Expiry date | May 28, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/36
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The disclosure relates to a unitary molded article and a method for producing a multi-part closure for assembly on the neck of a container, the closure involving an axially shiftable valve element which is movable between open and closed position. All parts of the multi-part valve element are integrally molded in a common molding cavity and the various relatively movable parts are interconnected by thin annular webs which are severed and the parts placed in proper operative condition during the assembly of the closure to the neck of a container by a conventional applicating machine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.