Resilient tires and wheels – Tires – resilient – Pneumatic tire or inner tube
Reexamination Certificate
2008-01-08
2008-01-08
Knable, Geoffrey L. (Department: 1733)
Resilient tires and wheels
Tires, resilient
Pneumatic tire or inner tube
C152S546000, C152S547000, C152S555000, C156S132000, C156S133000, C156S135000
Reexamination Certificate
active
07316255
ABSTRACT:
A pneumatic tire comprises: a carcass ply turned up around a bead core in each bead portion from the inside to the outside of the tire so as to form a pair of turnup portions and a main portion therebetween; a bead apex disposed between the carcass ply turnup portion and main portion; and a reinforcing rubber layer disposed axially outside the carcass ply, wherein the bead apex extends radially outwardly from the bead core up to a position at a radial height in a range of from 10 to 25 mm from the radially outer end of the bead core; the reinforcing rubber layer extends radially outwardly beyond the maximum tire section width point, and radially inwardly beyond the radially outer edge of the turnup portion; and the bead apex and reinforcing rubber layer are each made of a hard rubber, and the difference in hardness therebetween is not more than 15 degrees. In a method of manufacturing the pneumatic tire, a bead-core-and-apex assembly is placed on each sides of a cylindrical surface of a tire-building drum around which a carcass ply is wound, wherein the radially outer end of a bead apex rubber of the assembly is positioned at a radial distance of not more than 8 mm from the cylindrical surface.
REFERENCES:
patent: 4214620 (1980-07-01), Mezzanotte
patent: 4326576 (1982-04-01), Mizumoto et al.
patent: 4872497 (1989-10-01), Hanada et al.
patent: 5522443 (1996-06-01), Ueyoko et al.
patent: 5620539 (1997-04-01), Ide
patent: 6053229 (2000-04-01), Suzuki
patent: 6371185 (2002-04-01), Suzuki
patent: 6972061 (2005-12-01), Kubinski et al.
patent: 2005/0028920 (2005-02-01), Roedseth et al.
patent: 0 887 210 (1998-12-01), None
patent: 0 887 210 (1998-12-01), None
patent: 1 083 064 (2001-03-01), None
patent: 1 083 064 (2001-03-01), None
patent: 55-148603 (1980-11-01), None
patent: 11-20424 (1999-01-01), None
patent: 3332330 (2002-07-01), None
Birch & Stewart Kolasch & Birch, LLP
Knable Geoffrey L.
Sumitomo Rubber Industries Ltd.
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