Modified spring system end cap for packaging fragile articles within shipping cartons
US7131617B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2003 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Nov 19, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/058
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Structures for a unitary spring system end cap include at least one rib formed on the outer wall of an end cap. The at least one rib can protrude from the outer wall, for example centered along the length of a spring system. Where a carton containing a product protected by a unitary spring system end cap is dropped from a height, the rapid deceleration caused by an impact with a surface causes the at least one rib to engage the spring system on which it is centered. A second such structure includes at least one bulbous feature located centrally of the platform of an end cap. The at least one bulbous feature can absorb compressive forces applied to the platform of the end cap, crushing in a controlled manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.