General Electric Company

John C Devins

Stefan J Rzad

Clive W Reed

Amandus H Sharbaugh

Matthew A Dranchak

An abrasion-resistant article and method for making is disclosed. The article includes a plastic substrate and a gradational coating applied by plasma-enhanced chemical vapor deposition to the surface thereof.

Abrasion-resistant plastic articles

Abrasion-resistant plastic articles and method for making them

An abrasion-resistant article and method for making is disclosed. The article includes a polycarbonate substrate, an interfacial layer of an adherent resinous composition on the substrate, and an abrasion-resistant top layer applied on the interfacial layer by plasma-enhanced chemical vapor deposition.

Method for forming abrasion-resistant polycarbonate articles, and

An ionic material is added to a halocarbon insulating fluid used to cool high voltage equipment in order to prevent the buildup of electrtostatically generated charge. The ionic additive allows leakage of charge from the insulating fluid so as to prevent dangerously high voltage buildup while at the same time withstanding the high voltage applied to the system.

Additives to prevent electrostatic charge buildup in fluids in high

The pressure of a gas within an enclosure is measured without making physical contact with the gas by focusing radiation from a laser onto a section of the gas and, while varying the intensity of the radiation, monitoring the section under measurement for electrical breakdown, as indicated by emitted light or suitable breakdown indicia, such as radio noise. The absolute gas pressure at the section of the gas under measurement is determined from a calibration curve relating the intensity of the beam to the pressure at which breakdown occurs for the particular gas being monitored.

Remote pressure sensor

In high voltage electrical equipment, improvement in the dielectric performance of an insulative conduit having a flow of liquid dielectric coolant therein is effected by providing a suitably selected low conductance path in contact with the dielectric coolant.

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Burnt Hills, NY, United States of America

John C Devins