Abstract: This disclosure describes co-extruded multilayer articles including at least one continuous layer and one discontinuous layer, as well as systems and techniques for the manufacture of co-extruded multilayer articles. For example, a co-extruded multilayer article is described that includes a body having a plurality of layers, where a first layer of the plurality of layers is formed from a first material and is continuous along a longitudinal axis of the body, and a second layer of the plurality of layers is formed from a second material and is discontinuously co-extruded along the longitudinal axis.

Abstract: A support core for an elastic sleeve comprises a first cylindrical section disengagably connected to a second cylindrical section. Each cylindrical section has an annular sidewall made up of a plurality of interlocking concave plates extending longitudinally along a portion of the support core between a abutment end and a distal end. The abutment end of each cylinder section includes a generally helical edge. The plurality of concave plates comprises a top and bottom surfaces, having two opposing longitudinal edges extending between said surfaces on opposite sides of the concave plate. Each of the longitudinal edges comprises an interlocking feature that configure to connect to a mating feature of at least one other concave plate to form one of cylindrical sections of the support core.

Abstract: This disclosure describes co-extruded multilayer articles including at least one continuous layer and one discontinuous layer, as well as systems and techniques for the manufacture of co-extruded multilayer articles. For example, a co-extruded multilayer article is described that includes a body having a plurality of layers, where a first layer of the plurality of layers is formed from a first material and is continuous along a longitudinal axis of the body, and a second layer of the plurality of layers is formed from a second material and is discontinuously co-extruded along the longitudinal axis.

Abstract: A support core for an elastic sleeve comprises a first cylindrical section disengagably connected to a second cylindrical section. Each cylindrical section has an annular sidewall made up of a plurality of interlocking concave plates extending longitudinally along a portion of the support core between a abutment end and a distal end. The abutment end of each cylinder section includes a generally helical edge. The plurality of concave plates comprises a top and bottom surfaces, having two opposing longitudinal edges extending between said surfaces on opposite sides of the concave plate. Each of the longitudinal edges comprises an interlocking feature that configure to connect to a mating feature of at least one other concave plate to form one of cylindrical sections of the support core.

Abstract: This disclosure describes co-extruded multilayer articles including at least one continuous layer and one discontinuous layer, as well as systems and techniques for the manufacture of co-extruded multilayer articles. For example, a co-extruded multilayer article is described that includes a body having a plurality of layers, where a first layer of the plurality of layers is formed from a first material and is continuous along a longitudinal axis of the body, and a second layer of the plurality of layers is formed from a second material and is discontinuously co-extruded along the longitudinal axis.

Abstract: Methods for selecting a conductor configuration of an overhead power transmission line tension section between two dead-end towers when the conductor configuration includes at least two different types of conductors. Geographical profile information and overhead power transmission line preferences are used along with predetermined selection rules when selecting the appropriate conductor configuration. Some examples of overhead power transmission line preferences include electrical characteristics and conductor sag between towers, while examples of selection rules include conductor costs and conductor tension.

Abstract: Dead-end-to-dead-end overhead electrical power transmission line with at least two different conductors, and method of selecting and installing the conductors.

Abstract: In general the invention is directed to systems and methods to identify conductors that may be used as part of a power transmission line system. In one embodiment, the invention is directed to a computer-implemented method of evaluating an electric conductor for an overhead power transmission line, comprising: receiving requirements data defining requirements for an overhead power transmission line; receiving conductor data that define at least two conductors to be evaluated; after receiving conductor data for the plurality of conductors to be evaluated, automatically modeling expected operating performance for at least two conductors using conductor assessment software running on a computer, wherein modeling at least comprises, for at least one of the conductors to be evaluated, calculating the conductor's maximum ampacity within the constraints defined by the requirements data; and, based on the modeling, identifying at least one conductor that meets the requirements for the power transmission line.

Abstract: Dead-end-to-dead-end overhead electrical power transmission line with at least two different conductors, and method of selecting and installing the conductors.

Abstract: Methods for selecting a conductor configuration of an overhead power transmission line tension section between two dead-end towers when the conductor configuration includes at least two different types of conductors. Geographical profile information and overhead power transmission line preferences are used along with predetermined selection rules when selecting the appropriate conductor configuration. Some examples of overhead power transmission line preferences include electrical characteristics and conductor sag between towers, while examples of selection rules include conductor costs and conductor tension.

Abstract: In one aspect, a film assembly is disclosed comprising a first optical film having a tab disposed outside a first viewable area and a second optical film proximate and parallel to the first optical film, the second optical film having a slot formed outside a second viewable area; wherein the tab and slot are arranged to permit the first and second films to be moveably interlocked. In another aspect, an interlock arrangement for an optical film stack having at least a first and second optical film is disclosed comprising a penetrating member formed on the first film and a receiving member formed in the second film, wherein the film stack is moveably interlocked when the penetrating member is moveably secured in the receiving member. In another aspect, a method of assembling optical films is disclosed, the method comprising moveably interlocking two or more optical films to form a film assembly.

Abstract: In general the invention is directed to systems and methods to identify conductors that may be used as part of a power transmission line system. In one embodiment, the invention is directed to a computer-implemented method of evaluating an electric conductor for an overhead power transmission line, comprising: receiving requirements data defining requirements for an overhead power transmission line; receiving conductor data that define at least two conductors to be evaluated; after receiving conductor data for the plurality of conductors to be evaluated, automatically modeling expected operating performance for at least two conductors using conductor assessment software running on a computer, wherein modeling at least comprises, for at least one of the conductors to be evaluated, calculating the conductor's maximum ampacity within the constraints defined by the requirements data; and, based on the modeling, identifying at least one conductor that meets the requirements for the power transmission line.

Abstract: Method and apparatus for providing film stress measurements. The invention provides a method for calculating film stress based on an inverse finite element analysis of a displaced substrate such as a semiconductor wafer. The surface displacement of the substrate is measured, and structural compliance based on an inverse finite element model of the substrate is determined. A stress field is ultimately calculated based on the structural compliance and a stress-load. The stress measurement is output based on values in the stress field. The invention can be implemented in software running on a computer system interfaced to a measurement system such as a stress and flatness gauge.

Abstract: Method and apparatus for providing film stress measurements. The invention provides a method for calculating film stress based on an inverse finite element analysis of a displaced substrate such as a semiconductor wafer. The surface displacement of the substrate is measured, and structural compliance based on an inverse finite element model of the substrate is determined. A stress field is ultimately calculated based on the structural compliance and a stress-load. The stress measurement is output based on values in the stress field. The invention can be implemented in software running on a computer system interfaced to a measurement system such as a stress and flatness gauge.