Method for sealing-in a gas in a bag with a gas filling compartment
US8661772B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2012 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Nov 13, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/03
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method for sealing-in a gas in a bag that has therein a gas filling compartment, including the steps of: placing a blow-out port of a nozzle, which is connected to a pressurized gas supply source, against a cut-in or a hole of the bag and holding the back surface side of the bag with a backing member; blowing a gas from the nozzle into the gas filling compartment of the bag through the cut-in or the hole; gripping and thus closing the gas flow path in sealed portions surrounding the periphery of the cut-in or the hole by a blocking gripper while the gas blow-in continues, thus cutting off the flow of the gas between the cut-in or the hole and the inside of the gas filling compartment; and then sealing the cut-in or the hole, thus allowing the gas to be sealed in the gas filling compartment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.