Assembly including acoustic baffles

US12125464B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Ronald W. Gerdes · Okabena, US
• Catherine A. Leatherdale · Woodbury, US
• Thomas Herdtle · Inver Grove Heights, US
• Paul A. Nielsen · LaGrange, US
• Timothy J. Rowell · Windom, US
• Liyun Ren · Woodbury, US
• Daniel J. Zillig · Cottage Grove, US
• Sachin Talwar · Woodbury, US
• Eumi Pyun · Austin, US
• Jeffrey Allen Chambers · Hockessin, US
• Pingfan Wu · Niskayuna, US

Key dates

• Filing date: Aug 28, 2020
• Grant date: Oct 22, 2024
• Expiry date: Apr 18, 2041

Classification

• Technology area (CPC G): Physics
• CPC primary: G10K11/168
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

An assembly includes an enclosure including first and second regions spaced apart along a first direction, and a plurality of spaced apart acoustic baffles arranged along a second direction different from the first direction and disposed in the enclosure between the first and second regions. The plurality of spaced apart acoustic baffles includes adjacent first and second acoustic baffles. Each of the first and second acoustic baffles include an acoustically absorptive layer disposed on a sheet having a specific airflow resistance greater than 200 MKS Rayl. The first and second acoustic baffles define a channel therebetween. At least a portion of the channel extends along a longitudinal direction making an oblique angle with the first direction.