Coating apparatus – Solid member or material acting on coating after application – Running length work
Reexamination Certificate
2008-01-29
2008-01-29
Lamb, Brenda A. (Department: 1734)
Coating apparatus
Solid member or material acting on coating after application
Running length work
C118S420000, C118SDIG018
Reexamination Certificate
active
07323055
ABSTRACT:
There is provided an extrusion head that is capable of largely increasing a production speed rather than a conventional head that extrudes supplies a high viscous melt-coating composition. In an extrusion head12that comprises a die ring12having an exit portion122and a nipple13arranged in vicinity of the exit portion122, whereby a core wire passage131is provided to an inside of the nipple13in an axial direction, and a high viscous melt-coating composition is pressure-fed into a space, which is formed by the die ring12and the nipple13, toward the exit portion122while drawing out a core wire W from the core wire passage to the exit portion, and thus a cord-like coated core wire is extruded from the exit portion122of the die ring while coating the core wire W with the high viscous melt-coating composition, a stagnation reservoir of the high viscous melt-coating composition is provided in vicinity of the exit portion by providing a wall surface121perpendicularly to a proceeding direction of the core wire W at the exit portion122.
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Ebisawa Mitsuo
Fukuda Hiroshi
Ogino Hiroyuki
Sugimori Tooru
Ueda Shigeki
Lamb Brenda A.
Matsushita Electric - Industrial Co., Ltd.
Pearne & Gordon LLP
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