Pneumatic tire

Details Pneumatic tire Pneumatic tire

2005-03-08

2010-02-23

Fischer, Justin (Department: 1791)

Resilient tires and wheels

Tires, resilient

Pneumatic tire or inner tube

C152S154100, C152S155000

Reexamination Certificate

active

07665495

ABSTRACT:
Disclosed is a pneumatic tire enabling to even a weight balance thereof in a tire circumferential direction in realizing reduction of cavity resonance noise by using an annular object having cross-sectional areas which vary depending on locations in the tire circumferential direction. The pneumatic tire of the present invention is one in which an annular object having cross-sectional areas which vary depending on locations in the tire circumferential direction is mounted on an inner surface of a tread portion. In the pneumatic tire, the annular object is formed by partially applying compression forming to a porous material member having a density of 5 to 70 kg/m3and having an uniform cross-sectional shape in the tire circumferential direction.

REFERENCES:
patent: 565451 (1896-08-01), Gregory
patent: 2003/0188817 (2003-10-01), Yukawa et al.
patent: 2004/0066083 (2004-04-01), Tsihlas
patent: 62-216803 (1987-09-01), None
patent: 2002178712 (2002-06-01), None
patent: 2003-226104 (2003-08-01), None
patent: 2004-276809 (2004-10-01), None
patent: 2004-291905 (2004-10-01), None
patent: WO 02/85648 (2002-10-01), None

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