Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1975-01-31
1976-07-20
Kucia, Richard R.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264263, 264275, B29C 600
Patent
active
039707350
ABSTRACT:
A method for making splices in high voltage electrical cable and particularly for replacing relatively short sections of previously removed, original insulation. Ends of the original insulation adjoining the section are tapered and fresh insulating material is placed over the section and heated to fluidize it. Pressure is applied to intimately combine the original cable insulation and the newly added splice insulation to thereby effect an interfacing of the original and newly added insulating material. The new insulating material is placed inside the cavity of a mold which includes small apertures communicating the cavity with the exterior and being spaced over the length of the cavity. The fresh insulating material is pressurized by forcing additional material into the cavity to thereby vent entrapped air through the apertures to the exterior. Some of the apertures are selectively opened and closed to effect the venting while propagating the insulating material and the applied pressure throughout the cavity.
REFERENCES:
patent: 2716623 (1955-08-01), Tator
patent: 2768105 (1956-10-01), Dittmore
patent: 3384931 (1968-05-01), Cochran
patent: 3671622 (1972-06-01), Humphries
Kucia Richard R.
Townsend and Townsend
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