Rigid urethane self-skinning foam top frame, pallet support board, and pallet
US9522760B2 · kind B2 · utility
7Cited by
65References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 7, 2011 |
| Grant date | Dec 20, 2016 |
| Priority date | — |
| Expiry date | May 3, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24777
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention provides a top frame made from a thermoset foam material. The top frame includes a pair of substantially parallel sides and a pair of substantially parallel ends connected to the sides to form a generally rectangular frame structure. The frame structure has an inner layer and outer surface defining a thickness. The thermoset foam material varies in density along the frame structure thickness such that the density of the thermoset foam material is greatest near the frame structure outer surface to form a hard outer shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.