Method of packing objects and packing therefor
US4584822A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1984 |
| Grant date | Apr 29, 1986 |
| Priority date | — |
| Expiry date | Mar 7, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/113
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A cushion packing material for use in protecting objects from shock and vibrational loads. The cushion packing comprises a dimensionally stable thermoformed shell forming a chamber therein of a predetermined configuration and having a foam material disposed therewithin so as to provide a molded density of less than or equal to 1.5 pounds per cubic foot. Preferably, the foam comprises a low density polyurethane foam. The dimensionally stable shell is thermoformed in a mold and is removed therefrom for filling with the low density foam. The cushion packing provides substantially equivalent or improved cushioning benefits in terms of dissipating dynamic forces at higher static stresses or loadings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.