Method and apparatus for molding fiber optic connector ferrule

Details Method and apparatus for molding fiber optic connector ferrule Method and apparatus for molding fiber optic connector ferrule

1984-06-22

1987-12-08

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

249142, 249151, 249177, 264 15, 264318, 425468, 425577, 425543, B29C 4536

Patent

active

047117524

ABSTRACT:
An apparatus is provided for use in molding a ferrule which must hold an optical fiber cable so the optical fiber lies precisely concentric with the cylindrical outside surface of the forward portion of the ferrule. A corepin which lies within a mold to form a ferrule cavity between them, has a rearward end held to the mold and a forward end which must be held precisely concentric with the inside surface of the ferrule cavity. A bushing of clover leaf design is positioned in the mold cavity, and has three radially-extending arms that precisely center the forward end of the corepin, while leaving spaces between the arms through which plastic can flow during the molding of the ferrule. The radially-outer arms of the bushing are tied by tying portions whose radially inside surfaces form an interrupted cylindrical outside surface of the ferrule.

REFERENCES:
patent: 3374503 (1968-03-01), Boniger
patent: 3374538 (1968-03-01), Murray
patent: 4187272 (1980-02-01), Bourdon et al.
patent: 4213932 (1980-07-01), Young
patent: 4303304 (1981-12-01), Ruiz
patent: 4424174 (1984-01-01), Howarth
patent: 4493632 (1985-01-01), Hori et al.

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