High performance speaker diaphragm
US4359132A · kind A · utility
30Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 1981 |
| Grant date | Nov 16, 1982 |
| Priority date | — |
| Expiry date | May 14, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/684
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disclosure is of a high performance speaker diaphragm which comprises needled and interlocked textile staple fibers of a first, relatively heat-resistant fiber and a second, heat-softenable fiber. The fibers are molded together to soften the second fiber whereby it interlocks with the first fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.