Molding device incorporating a peg guide backing member, for mol

Details Molding device incorporating a peg guide backing member, for mol Molding device incorporating a peg guide backing member, for mol

1993-03-24

1994-05-17

Gonzalez, Frank

Optical waveguides

With disengagable mechanical connector

Optical fiber/optical fiber cable termination structure

385 85, 425108, G02B 626

Patent

active

053135415

ABSTRACT:
A device for molding plastics material ferrules for optical fibre connectors comprises a molding cavity defined by an accurately sized cylindrical bush defining the outside diameter of the ferrule. A cover closes the molding cavity. A peg joined to the cover extends axially into the molding cavity and is extended at its free end by an accurately sized needle defining the inside diameter of the ferrule. A backing member extending axially into the molding cavity from the opposite end as compared with the peg comprises a bore for guiding the needle adapted to receive the end thereof when the backing member moves towards the peg so as to render the needle and the bush concentric. A venting system allows gases to escape from the molding cavity to the exterior when plastics material is injected into the mold. The backing member is a substantially cylindrical body of revolution which fits directly into the bush with no clearance and minimal force.

REFERENCES:
patent: 4173389 (1979-11-01), Curtis
patent: 4351586 (1982-09-01), Phillips et al.
patent: 4648688 (1987-03-01), Ashman et al.
patent: 4729624 (1988-08-01), Kakii et al.
patent: 5193133 (1993-03-01), Schofield et al.
patent: 5251279 (1993-10-01), Shibata et al.

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