Removable mold insert for wing or wingless type precure tread production
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United States of America Patent
Stats
-
May 25, 1999
Issued Date -
N/A
app pub date -
Aug 15, 1997
filing date -
Feb 22, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for producing both wing-type and wingless tire treads from a single mold. The mold includes a main portion, a pair of first inserts which are selectively attachable to the main portion. The pair of first inserts is capable of molding wingless treads. A pair of second inserts can be selectively secured to the main portion in place of the first pair of inserts to mold wing-type treads. The method for converting a wingless tire tread mold to a wing-type tire tread mold includes the steps of removing the pair of first inserts from the main portion of the mold and securing the pair of second inserts to the main portion of the mold with the securing apparatus.
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