ACOUSTIC SOUNDPROOFING PRODUCTS SOLD AS

Brand	Owner	Address	Description
MACHINEROOM	RADIAL ENGINEERING LTD.	1845 Kingsway Ave, Unit 1165 Port Coquitlam BCV3C1S9 Canada	Acoustic soundproofing products sold as integral components of audio and computer equipment enclosures, namely, sound absorbers and diffusers with cooling fan for use in sound and vibration isolation of audio and computer equipment, and instructional manuals all sold as a unit;MACHINE ROOM;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A soundproofing assembly intended, in particular, to soundproof a motor vehicle. The inventive assembly includes four stacked layers, consisting respectively of: a first layer having an air resistance of between 500 and 2,000 NÂ·m?3.s; a second porous, acoustic spring-type layer having a resistivity of between 10,000 NÂ·m?4.s and 50,000 NÂ·m?4.s; a third viscoelastic, airtight, heavy mass-type layer having a density that is greater than or equal to 1,500 Kg/m3 and a surface density of between 0.2 Kg/m2 and 9 Kg/m2; and a fourth porous, acoustic spring-type layer having a resistivity of between 10,000 NÂ·m?4.s and 50,000 NÂ·m?4.s.