High-strength, lightweight blow-molded plastic structures
US7171910B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | May 27, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/448
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Blow molded plastic structures are provided for use in various structures such as, but not limited to, tables, chairs, walls, backboards, storage bins, sports equipment and the like. The blow molded plastic structure has a first surface and a second surface extending between a first end and a second end and forming a chamber there between. A plurality of depressions is formed on the second surface and extends into the chamber. The depressions are usually unitary structures formed by a depression wall. Generally, the steeper the depression wall, the more strength is provided to the structure. In addition, where the plurality of depressions has a low profile and a greater density, increased strength is provided to the structure. The depressions may or may not be joined to the first surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.