Pre-formed speaker grille cloth
US5412162A · kind A · utility
22Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 1993 |
| Grant date | May 2, 1995 |
| Priority date | — |
| Expiry date | Dec 29, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/023
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A grille cloth for speaker assemblies is preformed into a desired shape and has sufficient rigidity to maintain this pre-formed shape while being supported in a non-tensional manner only at its periphery. The use of such a pre-formed fabric as a grille cloth eliminates a need for non-peripheral support while visually obscuring the components of the speaker assembly behind the grille cloth. The grille cloth is comprised of a polyester material which is substantially transparent to acoustic radiation in the audible frequency range while also being substantially opaque to visible light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.