Inflatable packaging cushion with a resistance wire
US6276532A · kind A · utility
36Cited by
32References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 2000 |
| Grant date | Aug 21, 2001 |
| Priority date | — |
| Expiry date | Mar 15, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/751
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An inflatable cushion includes top and bottom sheets. The top sheet is sealed to the bottom sheet in peripheral zones to define an inflatable chamber and an inflation inlet in fluid communication with the inflatable chamber. A resistance wire extends between the top and bottom sheets and at least across the internal width of the inflation inlet. The inflation inlet further defines an inflation aperture. The inflatable cushion may be inflated through the inflation aperture and sealed by applying an electrical current across the resistance wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.