Systima Technologies, Inc.

Leland Electrosystems Inc.

Kory K Evanson

Richard D Hreha

Michael D Rauscher

Jeffrey R Josken

Kristopher K Aber

Terrence W Moore

Robert R Hanson

Harold G Carlson

Methods of producing a fiber reinforced polymer matrix composite and a composite thermal protection system formed from the same. The method includes forming a polymerized fiber reinforced composite which including a cured thermoset polymer matrix and at least one reinforcement material. The method further includes treating at least a portion of a first face of the polymerized fiber reinforced composite with electromagnetic radiation to raise the temperature of the portion of the first face to at least 800° C. to produce a surface layer of graphitized carbon and a bulk polymerized fiber reinforced composite representing the untreated polymerized fiber reinforced composite. Further, the surface layer of graphitized carbon has an electrical conductivity of 0.25 S mto 2.5 S mwhere the electrical conductivity and a thermal conductivity are both greater than those of the bulk polymerized reinforced composite.

Method of making carbonized composites

Dc aerospace power supplies include neutral point controllers to interconnect primary or secondary windings of the supplies into wye connected primary or secondary circuits. In power supplies having neutral point controllers in the primary circuits, the power supplies may alternately or in addition have first and second compound wye connected secondary circuits having a separate or common neutral point.

Aerospace DC power supply having neutral point controller

Growing community of inventors

Vandalia, OH, United States of America

Kory K Evanson