Plastic article or earthenware shaping or treating: apparatus – Reshaping – resizing or vulcanizing means for tire – tire... – Internal mold – form or support for toroid
Reexamination Certificate
2008-12-10
2011-12-20
Mackey, James (Department: 1744)
Plastic article or earthenware shaping or treating: apparatus
Reshaping, resizing or vulcanizing means for tire, tire...
Internal mold, form or support for toroid
C425S812000, C264S315000
Reexamination Certificate
active
08079839
ABSTRACT:
The bladder for vulcanizing tires having a plurality of first air-release grooves provided on the outer surface of a bladder body and each formed so as to extend from one to the other of the tire circumferential direction and extend toward one side of the tire-width direction, and a plurality of second air-release grooves provided on the outer surface of a bladder body and each formed so as to extend from one to the other of the tire circumferential direction and extend toward the other side of the tire-width direction. By this, the outer surface of the bladder body is divided into a plurality of areas by each of the air-release grooves. Also, the vertexes of each of the areas are angular toward the tire-circumferential direction. Therefore, the pressure contact between each of the areas and the inner surface of the tire is easily released starting at the said vertexes of each of the areas as release starting points.
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Greer Burns & Crain Ltd.
Mackey James
The Yokohama Rubber Co. Ltd.
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