Optical waveguides – With disengagable mechanical connector – Structure surrounding optical fiber-to-fiber connection
Reexamination Certificate
2005-05-24
2005-05-24
Reichard, Dean A. (Department: 2831)
Optical waveguides
With disengagable mechanical connector
Structure surrounding optical fiber-to-fiber connection
C385S070000, C385S052000, C385S058000, C385S060000, C385S065000, C385S066000, C385S077000, C385S078000, C385S084000, C385S138000, C264S001100, C264S001240, C264S001380, C264S002100, C264S002200, C264S002300
Reexamination Certificate
active
06896417
ABSTRACT:
In the production of a hollow cast article having a slit, the release of a hollow cast product from a mold is carried out while opening the hollow cast product. In one embodiment, a core provided with recessed parts (or projected parts) formed in a slit forming part (or an outer peripheral part) is used and the drawing out of the core from the hollow cast product is carried out while opening the hollow cast product by means of the recessed parts (or projected parts) mentioned above. By such a method, a hollow cast article having a slit and projected parts (or recessed parts) formed in a slit part or/and an inner peripheral part thereof is obtained. In the case of the use of a core having a slit forming part of a taper-shaped ridge of which width gradually decreasing from a large width at one end to a small width at the other end, the core is drawn out from the hollow cast product in the direction to the other end of small width to open the hollow cast product by means of the slit forming part of the taper-shaped ridge.
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Kobayashi Masayuki
Sugita Etsuji
Takeda Hideki
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Harris Anton
Reichard Dean A.
YKK Corporation
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