Adhesive bonding and miscellaneous chemical manufacture – Methods – Making electrical conductors of indefinite length
Patent
1992-10-19
1994-05-17
Weston, Caleb
Adhesive bonding and miscellaneous chemical manufacture
Methods
Making electrical conductors of indefinite length
156 51, 15624412, 425114, B29C 4710
Patent
active
053124995
ABSTRACT:
Disclosed is an apparatus and method for making a loose tube buffered optical fiber, the apparatus comprising an extrusion crosshead having an inlet and exit port connecting a plastic flow passageway circumscribing another passageway in which there is disposed a grease injection unit having three concentrically disposed tubes, the first tube delimiting a path for optical fiber travel, the first and second tubes spaced apart from one another forming a travel path therebetween for jelly or grease-like hydrocarbon filling material and the third tube (circumscribing the first and second tube) forming a chamber at a terminal end portion, the chamber in communication with the travel paths of both the grease and optical fibers and in which the grease comes in contact with the optical fibers, the chamber being so disposed that the contact point of the grease and fibers is only after the grease and fibers have traveled a majority of the length of the grease injection unit.
REFERENCES:
patent: 4372792 (1983-02-01), Dey et al.
patent: 4474638 (1984-10-01), Einsle
patent: 4810429 (1989-03-01), Mayr
Bolick Rodney D.
Sigmon Mark A.
Moffitt Roy B.
Siecor Corporation
Weston Caleb
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