Dispenser package for viscous products
US5271534A · kind A · utility
18Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1992 |
| Grant date | Dec 21, 1993 |
| Priority date | — |
| Expiry date | Feb 7, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B11/1074
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A dispenser package for viscous products comprising a container, a hanger and pouch assembly of plastic material suspended in the container and a head including a pumping mechanism mounted on the container. The head includes a chamber with a first one way valve adjacent an opening in the hanger and pouch assembly and a second one way valve adjacent an outlet of the pumping mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.