Tire curing press
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United States of America Patent
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-
Oct 6, 1987
Grant Date -
N/A
app pub date -
Aug 27, 1986
filing date -
Aug 27, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tire curing press incorporates an improved seal assembly for the center mechanism or bladder assembly. The bottom or lower clamp ring assembly for the shaping bladder is normally threaded on a hub. The hub and ring assembly include cylindrical telescoping surfaces and axially facing surfaces with an O-ring or seal ring provided between the former and a harder bumper ring provided between the latter. The present invention eliminates the seal between the cylindrical surfaces and provides between the axially facing surfaces a special seal assembly which includes an annular sealing plate with a low coefficient of friction and two sealing O-rings on each side thereof. The seal assembly prevents 'blow-by' and makes the parts easier to assemble and disassemble under various temperature conditions.
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