Structural cores and their fabrication
US4241117A · kind A · utility
20Cited by
10References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 14, 1979 |
| Grant date | Dec 23, 1980 |
| Priority date | — |
| Expiry date | Jun 14, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2975
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Structural cores in the form of open-ended polyhedrons joined together al common edges or sides are generating high industrial interest because of the great strengths they possess relative to their weights. A structural core medium of interwoven fibrous filaments coated with plastic is highly satisfactory, but it has the disadvantage that it is very difficult, if not heretofore impossible, to produce in other than planar, sandwich or cylindrical form. A jig for the fabrication of such cores has not come into existance. This invention provides a jig which makes possible the fabrication of such polyhedral structural cores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.