Dispenser package for dual viscous products
US6308862A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1992 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Apr 27, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1074
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispenser package for dispensing dual viscous products which are separately retained within the package and merged at a dispensing nozzle. The dispensing package comprises a container having a compressible portion and a hanger and pouch assembly of plastic material suspended in the container. The hanger has an upper portion with a pair of openings. A flexible film pouch having an opening is bonded in each opening in the hanger and has portions bonded to the hanger. The hanger has lower portions comprising of spaced flexible walls associated with each pouch. The head assembly includes a one-way valve associated with each opening in the hanger and a portion which maintains the viscous products from each of the pouches separate until they pass from a nozzle on the head assembly to the exterior when the compressible portion of the container is squeezed. An atmospheric valve is provided for equalizing the pressure after the compressible portion of the container has been released and the hanger and pouch assembly returns to its original position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.