Patent · US Active

Dust shielding apparatus

US10225633B2 · kind B2 · utility

0Cited by

8References

19Claims

0Family size

Assignee

NOKIA TECHNOLOGIES OY · FI

Inventors

Andreas Fromel · Ulm, DE
Jani Samuli Kuivalainen · Redmond, US

Key dates

Filing date	Jul 1, 2011
Grant date	Mar 5, 2019
Priority date	—
Expiry date	Nov 4, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04M1/03
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

An apparatus comprising at least one sound aperture configured to be acoustically coupled to an air displacement component, wherein the at least one sound aperture configured to produce a magnetically shielded region to form a trap for particles.

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