Method for the preparation of an electric connector

Details Method for the preparation of an electric connector Method for the preparation of an electric connector

1981-06-05

1984-02-28

Parrish, John A.

Plastic and nonmetallic article shaping or treating: processes

With step of making mold or mold shaping, per se

Utilizing surface to be reproduced as an impression pattern

264261, 264272K, 264279, 264299, 264313, B32B 326

Patent

active

044341237

ABSTRACT:
The invention provides a novel method for the preparation of an electric connector formed of a core rod of an insulating rubber and a stripe-wise annular zones of a layer formed of an electroconductive paint to exhibit an appearance something like a brandling earthworm. According to the invention, a strip of a plastic film bearing printed stripes of the conductive paint is introduced lengthwise into a tubular mold with the printed surface facing inwardly to take a tubular configuration in direct contact with the inward surface of the tubular mold and the printed surface is brought into contact with the surface of the core rod so as that the striped layer of the conductive paint is transferred and adhesively bonded to the surface of the core rod, each stripe forming substantially closed ring on the core rod. The core rod may be an pre-formed rubber rod or formed by in-mold curing of a liquid prepolymer convertible into a rubber. The thus obtained connector has a smooth surface as a whole with the annular conductive zones and the bare areas of the insulating core rod being flush with each other.

REFERENCES:
patent: 3001167 (1961-09-01), Chestnutt et al.
patent: 3886252 (1975-05-01), Eker
patent: 3951493 (1976-04-01), Kozel et al.
patent: 4051296 (1977-09-01), Windecker

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