Honeycomb core diaphragm
US4471028A · kind A · utility
5Cited by
15References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1982 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | May 13, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A honeycomb core diaphragm is described, which contains a honeycomb core made from a thin plate of beryllium or beryllium alloy which is produced by a super-rapid cooling method. Since the thin plate of beryllium or its alloy has a high modulus of elasticity and low density and, furthermore, is easily moldable, it can be easily molded to produce a honeycomb core having a high modulus of elasticity and low density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.