Apparatus for forming a continuous lightweight multicell material
US4449901A · kind A · utility
5Cited by
10References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1982 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Jul 6, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An apparatus is described for producing a lightweight structural material (12), by forming gas-filled shells (38) of molten material from a matrix of nozzles (22) that form shells of very uniform size at very uniform rates. The matrix of molten shells coalesce into a multi-cell material of controlled cellular structure. The shells can be of two different sizes (38, 44) that are interspersed, to form a multicell material that has a regular cell pattern but which avoids planes of weakness and localized voids. The gas (50) in the shells can be under a high pressure, and can be a fire extinguishing gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.