Plastic and nonmetallic article shaping or treating: processes – Optical article shaping or treating – Utilizing plasma – electric – electromagnetic – particulate – or...
Patent
1985-02-27
1986-12-09
Lowe, James
Plastic and nonmetallic article shaping or treating: processes
Optical article shaping or treating
Utilizing plasma, electric, electromagnetic, particulate, or...
264 14, 264 36, 425 12, 425 13, 425108, 425218, 425808, B29D 1100
Patent
active
046279423
ABSTRACT:
In order to recoat bared end portions (32--32) of optical fibers (34--34) which have been spliced together, the spliced portions of the fibers and portions adjacent thereto are positioned in a groove (51) of a base plate (43) of a mold and enclosed with a cover (60). The cover is slidably moveable relative to the groove to allow an injection nozzle (81) which extends through the cover to become aligned with the fiber. Coating material (92) is introduced through the nozzle into engagement with the spliced end portions after which the cover is moved relative to the base plate to shear across the coating material along the interface between the cover and the base plate. Movement is discontinued when a channel (86) in the cover becomes aligned with the recoated splice. This allows the coating material to be solidified in the presence of a free surface (90) which avoids the formation of bubbles in the coating material and causes the recoated portion to remain in engagement with the original coated portions adjacent to the spliced end portions.
REFERENCES:
patent: 2267372 (1941-12-01), Calkins et al.
patent: 4410561 (1983-10-01), Hart, Jr.
patent: 4525312 (1985-06-01), Jones
"Injection Molding of Fusion Spliced Fiber", M. Ogai et al, OFC 1981, paper WC3.
Gagen Paul F.
Kuhl Jane F.
Mettler Stephen C.
Taylor Carl R.
AT&T Bell Laboratories
Lowe James
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