Patent · US Active

Acoustic filler including acoustically active beads and expandable filler

US11176919B2 · kind B2 · utility

1Cited by

8References

17Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Andrey Gavryushin · Planegg, DE
Veronika Wagner · Tübingen, DE
Juergen Sauer · Beilngries, DE

Key dates

Filing date	Aug 5, 2020
Grant date	Nov 16, 2021
Priority date	—
Expiry date	Aug 5, 2040

Classification

Technology area (CPC H)Electricity
CPC primaryH04R2499/11
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Aspects are disclosed of a filler for occupying a volume. The filler includes an expandable filler positioned in the volume so that it occupies a percentage of the volume. The expandable filler can permanently expand from a first dimension to a second dimension upon the application of an expansion trigger. The filler also includes an acoustic filler made up of a plurality of acoustically active beads positioned with the expandable filler in the volume so that the acoustic filler can adsorb gas flowing into the volume. Other embodiments are disclosed and claimed.

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