Optimal sandwich core structures and forming tools for the mass production of sandwich structures
US8835016B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2013 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Apr 9, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24661
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A sandwich structure is provided that includes a corrugated layer with at least one core layer (structure) made of a periodic array of adjacent truncated upward facing peaks and truncated downward facing valleys. Each truncated peak has a bonding land of an area A1. Each truncated valley has a bonding land of an area A2. A ratio of A1/A2 is less than 2. A distance D is between neighboring peaks, and a distance D is also between neighboring valleys. The corrugated layer is made from an initially flat sheet thickness of t. A first sheet layer is physically coupled to bonding lands of the truncated peaks. A second sheet layer is physically coupled to bonding lands of the truncated valleys.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.