Assembled sound-muffling thermal insulation board

Details Assembled sound-muffling thermal insulation board Assembled sound-muffling thermal insulation board

1989-09-11

1990-11-20

Robinson, Ellis P.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

428119, 428138, 428156, 428158, 428167, 428182, 428186, 428920, 428921, 181284, 181290, 181293, 181292, G10K 1104, E04B 199

Patent

active

049718509

ABSTRACT:
The present invention relates to an assembled sound-muffling thermal insulation board, and more particularly to a thermal insulation board having a surface board provided with plural pyramid bodies capable of greatly reducing the reflected sound wave going thereinto, and a sound-muffling thermal insulation layer mounted on the back face of the surface board, which is made from a styropor material and provided with plural fluffs to prevent convection of outdoor and indoor air with different temperatures whereby the hot air or cold air in an air-conditioned room will not escape and the energy is saved.

REFERENCES:
patent: 2582144 (1952-01-01), Miles
patent: 2746892 (1956-05-01), Elfving
patent: 3103255 (1963-09-01), Boschi et al.
patent: 4094379 (1978-06-01), Steinberger
patent: 4114725 (1978-09-01), Croasdale
patent: 4226299 (1980-10-01), Hansen
patent: 4475624 (1984-10-01), Bourland, Jr. et al.
patent: 4531609 (1985-07-01), Wolf et al.

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