Closure with internal flow control for a pressure openable valve in an extendable/retractable nozzle
US6446844B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2001 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Dec 18, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D47/2031
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dispensing system is provided for dispensing a product from a container having an opening. The dispensing system includes a spout for communicating with the container opening. The spout defines at least one discharge aperture and a distal seal. A nozzle assembly is mounted on the spout for movement between a retracted, closed position and an extended, open position. The nozzle assembly includes a nozzle having a dispensing passage around at least a portion of the spout. The nozzle assembly also includes a resiliently flexible valve that is sealingly disposed across the nozzle dispensing passage at a location distally of the spout and has an initially closed dispensing orifice which opens in response to a pressure differential acting across the valve. The nozzle assembly also includes a flow restrictor below the valve, and a distal seal for sealingly engaging the spout distal seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.