Soprema

Royal Mat Inc.

Royal Mat International Inc.

Gestion Soprema Canada Inc./holding Soprema Canada Inc.

Robert Ducharme

The invention is directed to an anti-vibration sound insulator for a suspended ceiling which is intended to be used either in residential or commercial applications. The insulator comprises a metal furring devised to be fixed to the ceiling. It also includes a central part comprising a star-shaped element having an upper vertical plate provided with an orifice and two lower plates each having extremities. These extremities are folded so as to jointly form a slide rail sized to receive and support the folded extremities of the metal furring. The central part also comprises an insulating element devised to be inserted in the upper plate orifice, this insulating element including an orifice. This latter orifice allows introducing a fixing element so as to fix the insulator beneath a floor, or against a joist supporting the floor.

Anti-vibration sound insulator for suspended ceiling

A multi-composite acoustic panel for application to walls or ceilings. The panel is made from 15 to 65% of particles of sawdust with a granulometry of 4 to 60 mesh, 25 to 75% of rubber crumb or other petroleum derivatives or recycled rubber with a granulometry of 4 to 30 mesh and 3 to 20% of a polyurethane elastomer binder, the percentages being expressed by weight with relation to the total weight of the panel. In use the rubber acts as an anti-vibration element and the sawdust acts as an acoustic energy absorber as this type of fibre is hollow-centered which permits an absorption role which the rubber particle does not have. Said particle has the ability to reduce an impact.

Multi-composite acoustic panel

A sound absorbing substrate for use as an underlayer in a flooring structure including a subfloor. The substrate is made of a resilient material and more particularly of recycled tires and comprises a bottom surface sized to cover a given surface area. This bottom surface is provided with cavities that preferably consist of parallel grooves extending at an angle of about 45&deg; with respect to one side edge of the substrate. These cavities leave a portion only of the bottom surface in contact with the subfloor. The surface ratio of the portion of bottom surface in contact with the subfloor to the given surface area covered by the bottom surface ranges from 20 to 65%. Such substrates can be of reduced thickness while still having good sound absorbing properties.

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Ste-Anne-des-Plaines, Canada

Robert Ducharme