Patent ID: 9714508
Date: 2017-07-25
CPC Classifications: A61B,B32B,E04B,E04H,G10K,G16H

Claim:
1. A structure configured with an inner, substantially sound-limited or sound-reduced volume, the structure comprising: a frame; and material arranged about the frame to form and enclose the sound-limited or sound-reduced volume; wherein the material comprises a base layer and a layer of sound-absorbing material provided on at least one portion of the base layer; wherein the layer of sound absorbing material is attached to or integral with the base layer; and wherein the sound-limited or sound-reduced volume includes an entrance that in an open state allows for sound entry to and exit from the sound-limited or sound-reduced volume and in a closed state limits sound entry to and exit from the sound-limited or sound-reduced volume.