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(12) Patent: | (11) CA 2514954 |
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(54) English Title: | MULTI-COMPOSITE ACOUSTIC PANEL |
(54) French Title: | PANNEAU ACOUSTIQUE MULTI-COMPOSITE |
Status: | Deemed expired |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | ROBIC |
(74) Associate agent: | |
(45) Issued: | 2008-11-04 |
(86) PCT Filing Date: | 2004-01-28 |
(87) Open to Public Inspection: | 2004-08-12 |
Examination requested: | 2005-08-01 |
Availability of licence: | N/A |
(25) Language of filing: | French |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/CA2004/000112 |
(87) International Publication Number: | WO2004/067870 |
(85) National Entry: | 2005-08-01 |
(30) Application Priority Data: | ||||||
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The invention relates to 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.
L'invention vise un panneau acoustique multi-composite utilisable à titre
d'appui pour plancher ou murs. Ce panneau est composé de 15 à 65% de
particules de brin de scie avec une granulométrie de 4 à 60 mèches; de 25 à
75% de poudrettes ou autres dérivés du pétrole ou de caoutchouc recyclé avec
une granulométrie de 4 à 30 mèches; et de 3 à 20% d'un liant à base de
polyuréthane d'élastomère, les pourcentages étant exprimeés en poids par
rapport au poids total du panneau. En pratique, le caoutchouc agit comme
élément anti-vibration et le brin de scie agit comme élément absorbant
l~énergie acoustique car ce type de fibre est évidé dans le centre, ce qui lui
donne un rôle d'absorption que la particule de caoutchouc n'a pas. Elle
possède donc la capacité de réduire un impact.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
For a clearer understanding of the status of the application/patent presented on this page, the site Disclaimer , as well as the definitions for Patent , Administrative Status , Maintenance Fee and Payment History should be consulted.
Title | Date |
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Forecasted Issue Date | 2008-11-04 |
(86) PCT Filing Date | 2004-01-28 |
(87) PCT Publication Date | 2004-08-12 |
(85) National Entry | 2005-08-01 |
Examination Requested | 2005-08-01 |
(45) Issued | 2008-11-04 |
Deemed Expired | 2012-01-30 |
There is no abandonment history.
Fee Type | Anniversary Year | Due Date | Amount Paid | Paid Date |
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Request for Examination | $800.00 | 2005-08-01 | ||
Registration of a document - section 124 | $100.00 | 2005-08-01 | ||
Registration of a document - section 124 | $100.00 | 2005-08-01 | ||
Application Fee | $400.00 | 2005-08-01 | ||
Maintenance Fee - Application - New Act | 2 | 2006-01-30 | $100.00 | 2005-12-01 |
Maintenance Fee - Application - New Act | 3 | 2007-01-29 | $100.00 | 2006-12-15 |
Maintenance Fee - Application - New Act | 4 | 2008-01-28 | $100.00 | 2008-01-09 |
Final Fee | $300.00 | 2008-08-19 | ||
Section 8 Correction | $200.00 | 2008-11-25 | ||
Maintenance Fee - Patent - New Act | 5 | 2009-01-28 | $200.00 | 2008-12-31 |
Maintenance Fee - Patent - New Act | 6 | 2010-01-28 | $400.00 | 2010-04-01 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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ROYAL MAT INC. |
Past Owners on Record |
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DUCHARME, ROBERT |
TRAHAN, GINETTE |