The Boeing Company

Arthur W McDermott

Franciscus Hogenhout

Joseph L Rumney

Ralph R Welsh

An induction heating coil having fluoroplastic coated polyimide tape wrapped windings for providing a bonded, solid monolithic structure. The induction heating coil includes a cooling heatsink of predetermined size and shape fused in relationship to a plurality of consecutive turns of current-carrying coil windings. A plurality of fluoroplastic coated polyimide sheets are fused to the coil body between the coil body and a fluoroplastic face sheet forming the outer wear surface of the induction heater coil, thereby providing a non-stick surface for release of hot melt adhesives.

Coil assembly for hot melt induction heater apparatus

An induction heating coil having fluoroplastic coated polyimide tape wrapped windings for providing a bonded, solid monolithic structure. The induction heating coil includes a cooling fin of predetermined length extending in interleaved relationship between a plurality of consecutive turns of current-carrying coil windings. A plurality of fluoroplastic coated polyimide sheets are fused to the coil body between the coil body and a fluoroplastic face sheet forming the outer wear surface of the induction heater coil, thereby providing a non-stick surface for release of hot melt adhesives.

Method of making a coil assembly for hot melt induction heater apparatus

A flexible lightweight short pulse power cable assembly for electrical power transmission, e.g., for transmission of electrical power at 20,000 volts at short pulse D.C. halfwave currents of 30,000 amperes. The cable for electrical transmission utilizes an inner conductor and an outer concentrically disposed conductor, the inner and outer conductors having substantially equal cross-sectional areas and consequent resistances to equal and opposite current flows in the respective conductors thereby placing the cable current forces in compressive balance and further reducing electro-magnetic interference from transmission of power through the cable.

Method of making a short pulse cable for electrical power transmission

Cable for electrical power transmission

Method of coil assembly for hot melt induction heater apparatus

A method of making an EMR coil assembly having a split housing including a coil-retaining body member and ring member attached thereto, the EMR coil assembly including a coil having a plurality of polyimide face sheets disposed between a polyester face sheet forming the outer wear surface of the coil and a major surface of the coil.

Method of making a coil assembly for an electromagnetic high energy

An apparatus for utilizing electromagnetic energy for producing high impact forces by means of a ram propelled against a work piece. The work center of the apparatus includes a ram assembly of bolted construction having a hollow ram shaft, which ram assembly includes a gap between opposing conductive surfaces including associated fastener screws of driving disc and ram shaft of at least about five-sixteenths of an inch. A solid mass recoil assembly provides integral housing and recoil mass, enabling aerostatic bearing functioning, and also lowers shock and vibration levels to operator and equipment.

Recoil assembly for electromagnetic high energy impact apparatus

An EMR coil assembly having a split housing including a coil-retaining body member and ring member attached thereto, the EMR coil assembly including a coil having a plurality of polyimide face sheets disposed between a polyester face sheet forming the outer wear surface of the coil and a major surface of the coil.

Growing community of inventors

Maple Valley, WA, United States of America

Arthur W McDermott