Closure for a packaging container
US4489859A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1982 |
| Grant date | Dec 25, 1984 |
| Priority date | — |
| Expiry date | Oct 29, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/242
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A closure for a packaging container is provided, the closure permitting the continuous or intermittent dispensing of a liquid or free-flowing product. The closure comprises a continuous pipe sleeve with a bottom opening molded in the product dispensing opening, which pipe sleeve is provided with a tubular ball bearing housing within which a valve ball is free to move, which tubular housing includes a sealing cone which acts as a ball valve seat at the longitudinal sleeve outlet and a flared annular ball chamber above the bottom opening, which forms the longitudinal sleeve inlet end, and a freely movable valve ball located within the continuous tubular ball bearing housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.