Fluidic deflator means and method for article packaging
US5170609A · kind A · utility
60Cited by
29References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 22, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Jan 22, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B9/2007
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a novel deflator means for expelling excess air from packages which is used in connection with form, fill and seal packaging machines, said deflator means comprising flexible walled, fluid-filled bladder means which engages a product-containing bag and forces excess air out from the bag, the bladder fluid also being provided to be in communication with a reservoir which permits fluid exchange between the bladder, and the reservoir during the packaging cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.