Tire noise reducing system

Details Tire noise reducing system Tire noise reducing system

2008-03-25

2008-03-25

Johnstone, Adrienne C. (Department: 1791)

Resilient tires and wheels

Tires, resilient

Anti-skid devices

C152S450000, C152S510000, C152S526000, C152S527000, C152S531000, C152S533000, C152S541000

Reexamination Certificate

active

07347239

ABSTRACT:
A tire noise reducing system comprises a pneumatic tire with a hollow, a wheel rim on which the tire is mounted so that said hollow forms a closed cavity, and a noise damper disposed in the closed cavity, wherein the noise damper is formed by fixing a strip of a porous material to the tire or wheel rim, the noise damper has a volume in a range of from 0.4 to 20% of the volume of the cavity, the noise damper has a sectional shape substantially constant in the tire circumferential direction, and the pneumatic tire comprises a tread portion provided with tread grooves defining a tread pattern having a sea ratio of 20 to 35%.

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