Exhaust valve apparatus and gas filled cushion
US9700161B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 1, 2015 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Sep 1, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2601/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A gas cushioning material preserved by easily discharging a gas from a bag part and used by filling the bag part with the gas when used again is provided. Gas cells are disposed in parallel in a gas cell row by forming heat-fusion parts in the transverse direction. A discharge valve part for discharging gas is formed at an end portion of each gas cell row. A narrowed discharge passage is formed in the discharge valve part. When the bag part is filled with a gas, the discharge valve part is bent to close the discharge passage, and in the state in which the discharge valve part is bent, a first surface fastener and a second surface fastener formed on a front surface and a rear surface of the discharge valve part are coupled to each other to maintain a closed state of the discharge passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.