Valved dispensing system with priming liquid loss prevention
US6062435A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 6, 1999 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | May 6, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/2031
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dispensing system is provided for dispensing liquid from a container. The system includes a discharge conduit defining a flow passage for establishing fluid communication with liquid from the container. A resilient valve is provided to extend across the discharge flow passage in an initial, substantially non-deformed, closed configuration. The valve has an interior side for being contacted by the liquid and an exterior side exposed to ambient external atmosphere. The valve defines a normally closed dispensing orifice that is displaceable outwardly to an open configuration when the pressure on the valve interior side exceeds the pressure on the valve exterior side by a predetermined amount, and is displaceable inwardly to an open configuration when the pressure on the valve exterior side exceeds the pressure on the valve interior side by a predetermined amount. A restraint structure is disposed in the discharge conduit in contact with the valve interior side when the valve is in the initial, substantially non-deformed, closed configuration. The restraint structure and the discharge conduit together define at least one flow path accommodating flow of the liquid from the container a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.