3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Herve E Deve

Colin McCullough

Paul S Werner

Andreas Mortensen

Tracy L Anderson

Michael F Grether

Michael W Carpenter

Douglas E Johnson

Todd N Staffaroni

Emily S Goenner

Kristin LaVelle Thunhorst

Lawrence A Crum

David Robert Mekala

David M Wilson

Per Miles Nelson

John D Skildum

Kenneth L Yarina

David C Lueneburg

John L Sinz

Collin McCullough

Colin Mccullough

Thermoset polymer composite wires including a multiplicity of substantially continuous fibers embedded in a solidified polymer composite matrix and forming a substantially continuous filament, the solidified polymer composite matrix further including a polymer formed by curing a polymer precursor from a liquid state and a multiplicity of nanoparticles having a median diameter of one micrometer or less substantially uniformly dispersed throughout the polymer composite matrix, and optionally, a corrosion resistant sheath surrounding the substantially continuous filament. In some embodiments, the multiplicity of particles includes surface-modified particles having a core and a surface modifying agent associated with the core and reacted with the polymer cured from a liquid state. Stranded cables including one or more such thermoset polymer composite wires, and methods of making and using such thermoset polymer composite wires and stranded cables are also described.

Fiber-reinforced nanoparticle-loaded thermoset polymer composite wires and cables, and methods

An insulated composite power cable having a wire core defining a common longitudinal axis, a multiplicity of composite wires around the wire core, and an insulative sheath surrounding the composite wires. In some embodiments, a first multiplicity of composite wires is helically stranded around the wire core in a first lay direction at a first lay angle defined relative to a center longitudinal axis over a first lay length, and a second multiplicity of composite wires is helically stranded around the first multiplicity of composite wires in the first lay direction at a second lay angle over a second lay length, the relative difference between the first lay angle and the second lay angle being no greater than about 4&#xb0;. The insulated composite cables may be used for underground or underwater electrical power transmission. Methods of making and using the insulated composite cables are also described.

Insulated composite power cable and method of making and using same

A compression connector and assembly include an elongated, interiorly hollow tube, and at least one tubular sleeve, the tube including a first material exhibiting a first axial extrusion rate and the sleeve including a second material exhibiting a second axial extrusion rate, wherein the sleeve wall thickness is selected such that, when inserted into the tube and subjected to mechanical compression in a direction substantially orthogonal to the tube's exterior surface, deforms so that the first and second materials extrude axially at substantially the same rate. In some exemplary embodiments, the sleeve wall thickness may be selected to be thin, or the sleeve may include a multiplicity of axially spaced-apart corrugations formed in at least one exterior or interior surface. The assembly may include stranded composite wires, optionally with a tape covering only a portion of the composite wires. A method of making the compression connector is also described.

Compression connector and assembly for composite cables and methods for making and using same

A method of installing an electrical transmission cable includes providing an electrical transmission cable extending from a first end to a second end. The cable includes a flexible, full tension splice between the first end and the second end. Additionally, the electrical transmission cable includes at least one composite wire. Additionally, the flexible, full tension splice is pulled over a first sheave assembly.

Method of installing an electrical transmission cable

Dead-end-to-dead-end overhead electrical power transmission line with composite (e.g., aluminum matrix composite) core overhead electrical power transmission conductor tension subsection and another, different core overhead electrical power transmission conductor tension subsection.

Overhead electrical power transmission line

Installation of spliced electrical transmission cables

Cable comprising at least one of aramid, ceramic, boron, poly(p-phenylene-2.6-benzobisoxazole), graphite, carbon, titanium, tungsten, or shape memory alloy and having a stress parameter not greater than 5 MPa. Embodiments of the cable are useful, for example, as an overhead power transmission line.

Cable and method of making the same

Composite wire comprising polycrystalline &agr;-Al O fibers within a matrix of aluminum, or an alloy of aluminum and up to about 2% copper. The resulting materials are characterized by their high strength and low weight are particularly well suited for applications in various industries including high voltage power transmission.

Fiber reinforced aluminum matrix composite wire

Methods for making metal matrix composite articles such as wires and tapes. The metal matrix composites include a plurality of substantially continuous, longitudinally positioned fibers in a metal matrix. The fibers are selected from the group of ceramic fibers, boron, carbon fibers, and mixtures thereof.

Method of making metal matrix composites

Method of making articles comprising polycrystalline &agr;-Al O fibers within a matrix of aluminum, or an alloy of aluminum and up to about 2% copper.

Method of making fiber reinforced aluminum matrix composite

A composite metal matrix formed of polycrystalline &agr;-Al O fibers encapsulated within a matrix of substantially pure elemental aluminum, or an alloy elemental aluminum and up to about 2% copper is disclosed. The resulting materials are characterized by their high strength and low weight are particularly well suited for applications in various industries including high voltage power transmission.

Fiber reinforced aluminum matrix composite

Copper matrix composites reinforced with continuous SiC and/or boron fibers.

Copper matrix composites

Metal matrix composite wires that include at least one tow comprising a plurality of substantially continuous, longitudinally positioned fibers in a metal matrix. The fibers are selected from the group of ceramic fibers carbon fibers, and mixtures thereof. The wires have certain specified characteristics such as roundness values, roundness uniformity values, and/or diameter uniformity values.

Metal matrix composite wires, cables, and method

Method of making wire comprising polycrystalline &agr;-Al O fibers within a matrix of substantially pure elemental aluminum, or an alloy elemental aluminum and up to about 2% copper.

Growing community of inventors

Minneapolis, MN, United States of America

Herve E Deve