Bag evacuator
US5765723A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1996 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Aug 5, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2231/001
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An evacuator for a plastic bag containing viscous liquid within a rectangular, parallelepiped container having a drain positioned at a bottom edge region uses a windlass for drawing and winding an evacuated upper region of the bag to a region above the drain. A bag wall region diagonally opposite the drain is gripped, preferably with a noose; and a windlass positioned on the walls of the container above the drain draws the gripped region of the bag across the top of the container and then winds the evacuated upper regions of the bag onto the windlass to funnel the viscous liquid toward the drain in lower, unevacuated regions of the bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.