Apparatus for monitoring cellular dielectric material

Details Apparatus for monitoring cellular dielectric material Apparatus for monitoring cellular dielectric material

1975-06-02

1977-04-12

Shore, Ronald J.

Plastic article or earthenware shaping or treating: apparatus

Including means advancing continuous length work through...

425113, 425140, 425169, 425817C, B29F 310

Patent

active

040172287

ABSTRACT:
The capacitance and diameter-over-dielectric of successive sections of a conductor having a layer of cellular plastic insulation extruded thereon are monitored continuously. The monitoring provides a continuous indication of the capacitance and the diameter with respect to the percent expansion of the cellular plastic insulation and the weight of the insulation per unit length of the conductor. This facilitates the regulation of process variables to maintain the capacitance and diameter-over-dielectric within acceptable ranges of values.

REFERENCES:
patent: 2765441 (1956-10-01), Gambrill
patent: 2804592 (1957-08-01), Biskeborn
patent: 3502752 (1970-03-01), Brown

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