Acoustic ceiling panel, method of manufacture and acoustic ceiling system

US11898345B2 · kind B2 · utility

Assignee

• CertainTeed Ceilings Corporation · US

Inventors

• Yanjia Zuo · Rochester, US
• Chris Lee Heikkinen · L'Anse, US
• John T. Madajewski · Malvern, US
• Phillip Evans · Littleton, US
• Chris W. Niemi · L'Anse, US
• Jeremiah L. Shaffer · L'Anse, US
• Isabelle Etchart Randlett · Malvern, US
• Robert D. Miller · San Jose, US
• Keith C. Hong · Lititz, US
• Zhengzhi Zhou · Malvern, US

Key dates

• Filing date: Mar 15, 2021
• Grant date: Feb 13, 2024
• Expiry date: Oct 13, 2041

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E04B2001/8461
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

The present disclosure relates generally to acoustic panels, for example, suitable for use in a ceiling to control sound. The present disclosure relates more particularly to an acoustic ceiling panel including an acoustic substrate formed of a porous material having an air flow resistivity of at least 300 kPa*s/m2. The acoustic substrate includes an upper face and a lower face with a pattern of perforations formed therein, where the pattern of perforations covers at least 6% of the area of the lower face. The acoustic ceiling panel also includes a backing layer disposed over the upper face of the acoustic substrate and a veil disposed over the lower face.