Method of manufacturing and a manufacturing device of reinforced hose
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United States of America Patent
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-
Jun 15, 1999
Grant Date -
N/A
app pub date -
Oct 17, 1996
filing date -
Oct 17, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A single head forms an outside layer material supply passage connected through to an annular slit at joined portion, a reinforcing material supply passage and an inside layer material supply passage. An outside rubber layer is supplied to the outside material supply passage. A reinforcing cloth is supplied to the reinforcing material supply passage, and an inside rubber is supplied to the inside layer material supply passage respectively. A vacuum is formed up to the pressure of the joined portion by reducing under a vacuum the inside of the reinforcing cloth supply passage, thereby removing water or gas such as air attaching to both surfaces of the reinforcing cloth and increasing the adhesion of the outside rubber layer and the inside rubber layer with the reinforcing cloth being half there between.
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