Squeeze dispenser package for viscous products
US6305577A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1991 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Sep 13, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1074
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A squeeze dispenser package comprising 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 having an opening and a flexible film pouch having an opening is bonded to the opening in the hanger and has portions thereof bonded to the hanger. The hanger has a lower flexible portion comprising spaced flexible walls. In one form, a removable head is mounted on the container and overlies the hanger and pouch assembly. The head includes a nozzle having an opening overlying the opening in the pouch and 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.