Plastic article or earthenware shaping or treating: apparatus – Reshaping – resizing or vulcanizing means for tire – tire... – Toroidal or annular female shaping means and coacting means...
Reexamination Certificate
2006-10-04
2008-03-04
Mackey, James P. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Reshaping, resizing or vulcanizing means for tire, tire...
Toroidal or annular female shaping means and coacting means...
C425S046000
Reexamination Certificate
active
07338269
ABSTRACT:
A mold for molding a tread of rubber mix, this tread comprising a running surface delimited axially by lateral faces, this mold comprising (i) a central part for molding the running surface, movable between an open configuration allowing filling of the mold and a closed configuration allowing molding, the central part comprising at least one rib for molding a groove in the running surface; (ii) two lateral parts for molding the lateral faces, at least one of the lateral parts being axially movable relative to the central part; et (iii) at least one pin for molding a channel inside the tread, this pin being anchored in one of the lateral parts; and in which, when the mold is closed, a contact surface is formed between the pin and the rib, and the pin and/or the rib comprise a buffer made of a deformable material, deformation of which makes it possible to fill in the clearance between the pin and the rib at the contact surface when the mold is closed.
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Delbet Cédric
Desvignes Jean-Claude
Knepfle Robert W.
Buchanan & Ingersoll & Rooney PC
Mackey James P.
Michelin & Recherche et Technique S.A.
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