Flexible eduction tube for hand dispenser
US5527577A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 1993 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Jun 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1397
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus and method is disclosed for an improved flexible eduction tube for discharging a liquid product from a container with a dispensing mechanism comprising a mixture of a flexible material with a dense filler material distributed within said flexible material to provide a specific gravity greater than the liquid product within the container for enabling an input aperture of the eduction tube to remain below the level of the liquid product within the container when the container is tipped from a vertical orientation. In another embodiment of the invention, the eduction tube comprises a flexible material and rigid means for providing a non-flexible eduction tube prior to insertion of the eduction tube within the container and for providing a flexible eduction tube upon contact with the liquid product within the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.