Patent · US Active

Method and apparatus for improved acoustic transparency

US9002041B2 · kind B2 · utility

4Cited by
4References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 14, 2013
Grant dateApr 7, 2015
Priority date
Expiry dateMay 14, 2033

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T428/31504
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A process for the manufacture of a speaker cover comprises loading the speaker cover into a plasma chamber, introducing a fluoro monomer into the plasma chamber, pulsing plasma for processing, removing any excess monomer gas from the plasma chamber, and removing the speaker cover from the plasma chamber.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.