Apparatus for making cushioning packaging material
US4384442A · kind A · utility
39Cited by
8References
1Claims
0Family size
Inventor
Key dates
| Filing date | Sep 21, 1979 |
| Grant date | May 24, 1983 |
| Priority date | — |
| Expiry date | Sep 21, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31D2205/0082
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for making cushioning material for packaging materials is disclosed and includes means for driving webs of heat sealable material in face-to-face relationship, distending the webs by a stream of air or the like, transversely sealing and severing the distended webs to provide discrete capsules which are yieldable and capable of cushioning objects of commerce.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.