Gas injection device for gas bag having serial closed cells
US5581983A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 1995 |
| Grant date | Dec 10, 1996 |
| Priority date | — |
| Expiry date | Sep 6, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31D2205/0088
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This invention relates to a gas injection device for automatically supplying a flow of gas to a gas bag having serial closed cells to be used, for example, as a cushioning material for packaging operation. The gas injection device for a gas bag having serial closed cells includes a core (23) adapted to be inserted into a passage (19) of the gas bag (12), the core having a longitudinally intermediate portion (26) of a reduced diameter, at least two pinch rollers (21) for pressingly clamping said gas bag (12) at the position of the longitudinal intermediate portion (26) of a reduced diameter of the core (23), so as to drive the gas bag (12) in the longitudinal direction, a nozzle adapter (29) adapted to be withdrawably insertable into the opening of the passage (19) which is opened by the core (23) inserted therein, a displacer means for displacing the nozzle adapter (29) in a manner in which the nozzle adapter (29) is not displaced from the opening of the passage (19), when the gas bag (12) is driven in the longitudinal direction, a gas supply means (31, 32) adapted to be connected with the nozzle adapter (29), a nip means (33) for pressingly clamping the gas bag (12), so as to clos…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.