Sound absorbing material and its manufacturing method

Details Sound absorbing material and its manufacturing method Sound absorbing material and its manufacturing method

2005-06-28

2005-06-28

Koslow, C. Melissa (Department: 1755)

Compositions

Heat or sound insulating

C501S081000, C501S082000, C501S083000

Reexamination Certificate

active

06911158

ABSTRACT:
The porous sound-absorbing material manufactured is light and has excellent heat resistance to be applicable to the exhaust nozzle etc. of a jet engine, can effectively absorb noise as that from a jet engine, over a wide range of frequencies, is free from variations in porosity, and provides stable performance characteristics. An essential feature thereof is the formation of a skeleton of the material, with aggregates containing voids. Thus, a porous sound-absorbing material having a skeleton of aggregates with first voids is described, wherein diameters of first voids of the aggregates are 50 μm to 100 μm, approximately, and diameters of second voids between the aggregates are 100 μm to 600 μm.

REFERENCES:
patent: 4104077 (1978-08-01), Kobayashi et al.
patent: 4404291 (1983-09-01), Kiefer et al.
patent: 4588540 (1986-05-01), Kiefer et al.
patent: 4904291 (1990-02-01), Siebers et al.
patent: 5219802 (1993-06-01), Hsiao et al.
patent: 5998317 (1999-12-01), Sterzel
patent: 6113802 (2000-09-01), Penumella
patent: 6235665 (2001-05-01), Pickrell et al.
patent: 50-91505 (1975-07-01), None
patent: 10-187163 (1998-07-01), None
patent: 10-194864 (1998-07-01), None
patent: 11-291403 (1999-10-01), None
patent: 11-333293 (1999-12-01), None

Affiliated with

Also associated with

Rating

Sound absorbing material and its manufacturing method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sound absorbing material and its manufacturing method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound absorbing material and its manufacturing method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3461528