A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
A61C 17/08 (2006.01) A61M 1/00 (2006.01) F16L 55/033 (2006.01)
Patent
CA 2341265
A fluid flow passage defined by a surface which surrounds the passage is provided with a plurality of projections, such as fibrils or brush like bristles, on the surface extending transversely to the flow passage. The projections serve to counteract or dampen the generation of high frequency sound energy or noise. The flow passage may be part of a medical or dental aspirator or industrial vacuum intake system or high pressure steam or gas exhaust system.
La présente invention concerne un passage d'écoulement de fluide défini par une surface entourant le passage comportant une pluralité de projections, telles des fibrilles ou des crins de type brosse sur la surface s'étendant transversalement par rapport au passage d'écoulement. Les projections servent à neutraliser ou amortir la génération d'énergie sonore ou de bruit de haute fréquence. Le passage peut former partie d'un aspirateur médical ou dentaire ou d'un système industriel d'aspiration de vide ou encore d'un système de vapeur sous haute pression ou d'évacuation de gaz.
Borden Ladner Gervais Llp
Mitchell Kenneth B.
LandOfFree
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