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US 7,841,370 B2Granted
Foaming liquid material and use thereof for reducing noise in mounted tires
AssigneeThe Goodyear Tire & Rubber Company
InventorsMarc Engel, Jan Leyssens, Wolfgang Gnoerich
Life of this patent
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Abstract
The present invention is directed to a method of reducing noise transmission in a pneumatic tire and wheel assembly comprising an inflation cavity, the method comprising the step of adding to the inflation cavity from about 0.1 to about 1 volume percent, based on the volume of the inflation cavity, of a repeatably foamable liquid.
Claims11
A method for reducing noise in an air cavity of a mounted tire, comprising the step of:
- providing in the air cavity from about 0.1 to about 1 volume percent, based on the volume of the inflation cavity, of a repeatably foamable liquid;
- wherein the repeatably foamable liquid is a liquid that foams under agitation to form a cellular mass of foam, but then relaxes upon discontinuation of the agitation such that the cells coalesce and the foam relaxes to the original liquid state.
Dependencies are inferred from the claim text.