Acoustical insulating barrier and method of making the barrier

Details Acoustical insulating barrier and method of making the barrier Acoustical insulating barrier and method of making the barrier

1999-05-11

2000-08-29

Dang, Khanh

Acoustics

Sound-modifying means

Sound absorbing panels

181286, 428 95, 428220, E04B 182

Patent

active

061093890

ABSTRACT:
A needled composite acoustical barrier is provided. The barrier has a non-woven first layer (13) of needleable textile first fibers (13a); the layer (13) has a thickness of between about 0.01 inch and 0.5 inch and a density of between about 1.0 and 10 lbs. per cubic foot. A non-woven, low density second layer (15) of textile second fibers (15a) is provided; the second layer (15) has a thickness of between about 0.2 inch and 5 inches and a density of between about 0.1 and 4.0 lbs. per cubic foot. A high-density intermediate acoustical barrier layer (14) is disposed between the first and second layers (13, 15); the intermediate barrier layer (14) has a thickness of between about 0.01 inch and 0.5 inch, a density of at least 50 lbs. per cubic foot, and the barrier layer has a substantially continuous film of high-density needleable polymeric material. A plurality of needled stitches (19), formed from the first fibers (13a), extend from the first layer (13), through the intermediate barrier layer (14) and at least into the second layer (15).

REFERENCES:
patent: 4056161 (1977-11-01), Allen, Jr.
patent: 4522876 (1985-06-01), Hiers
patent: 4847140 (1989-07-01), Jaskowski
patent: 4966799 (1990-10-01), Lucca et al.
patent: 5068001 (1991-11-01), Haussling
patent: 5266143 (1993-11-01), Albera et al.
patent: 5547731 (1996-08-01), Tesch

Affiliated with

Also associated with

Rating

Acoustical insulating barrier and method of making the barrier does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustical insulating barrier and method of making the barrier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustical insulating barrier and method of making the barrier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1239542