Collapsible void filler
US5573818A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1994 |
| Grant date | Nov 12, 1996 |
| Priority date | — |
| Expiry date | Dec 21, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24149
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A void filler device for use in staggering or spacing apart items, such as paper rolls, during shipment includes a plurality of L-shaped members made of laminated paperboard, corrugated cardboard, plastic or other like suitable material. Each of the members has a first leg and a second leg which is angled approximately 90.degree. relative to the first leg. The first leg includes a plurality of spaced slots, which extend approximately half of the width of the first leg, by which the members interlock with each other to form an open-cell construction that is expandable and collapsible. The void filler expands and collapses by the members moving relative to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.