Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Producing toroidal work
Reexamination Certificate
2011-08-30
2011-08-30
Michener, Jennifer K. (Department: 1728)
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Producing toroidal work
C264S050000, C264S326000, C425S040000, C425S046000, C425S050000, C425S501000, C425S503000
Reexamination Certificate
active
08007710
ABSTRACT:
A green tire disposed on a toroidal support is introduced into a vulcanisation mold. The mold is closed through axial approaching of a pair of sidewall plates acting against the sidewalls of the tire. Circumferential sectors set to operate against the tire tread band are maintained spaced apart from the tread band itself during admission of a working fluid designed to press the tire against the toroidal support. Subsequently, the sectors are centripetally approached for penetration into the tread band concurrently with a step of full molding and vulcanisation of the tire carried out through admission of steam under pressure into the tire itself.
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Marchini Maurizio
Mariani Fiorenzo
Misani Pierangelo
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Michener Jennifer K.
Pirelli Tyre S.p.A.
Slawski Magali P
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