Abstract: A method of mixing substances under either laminar flow or turbulent flow conditions, or substances having a combination of laminar flow conditions. The method includes combining two or more initial fluidic substances into a combined fluid stream, dividing the combined fluid stream into two or more separate fluid streams, changing the shape of each of the two or more separate fluid streams in preparation for layering the two or more separate fluid streams together into a subsequent combined fluid stream such that each subsequent combined fluid stream has the same cross-sectional shape as the initial combined fluid stream and such that the cross-sectional area of the fluid stream is constant, and repeating the dividing, shaping and layering of the subsequent combined fluid stream at least one or more times.

Abstract: A static mixer for mixing substances under either laminar flow or turbulent flow conditions, or for mixing substances having a combination of laminar and turbulent flow conditions. The static mixer includes a first conduit operatively connected to a series of two or more mixing segments. The mixing segments include one or more splitting components for dividing the fluid stream into two or more flow streams, two or more flow branches wherein each of the flow branches receives one of the flow streams and wherein each of the flow branches operatively changes the cross-sectional shapes of their respective flow streams in preparation for layering and stacking the flow streams to each other, and a second conduit for receiving and stacking the two or more flow streams creating a layered unified fluid stream.

Abstract: A carpet composite is provided having improved static electricity characteristics which comprises: a surface layer comprised of face yarn, adhered to a backing layer of thermoplastic resin material into which has been incorporated a mixture of carbon black and carbon fibers in an amount sufficient to improve the static electricity characteristics of said carpet composite.

Abstract: Method to enhance the electrical conductivity of a carbon-containing film material such as a hot melt for carpet backing. The method involves applying a plurality of arcs across the surface of the film passing under a plurality of electrodes to create a plurality of small crater-like holes in the surface of the film. The film material may be adhered to a carpet material and the crater-like holes acting to increase the anti-static property of the carpet.

Abstract: A two electrode assembly in a polarographic cell includes a sensor electrode and a silver/silver chloride reference electrode in which silver metal is in contact with a substantial reservoir of silver chloride.

Abstract: A carpet composite is provided having improved static electricity characteristics which comprises: a surface layer comprised of face yarn, said face yarn being embedded into a backing layer of thermoplastic resin material into which has been incorporated a mixture of carbon black and carbon fibers in an amount sufficient to improve the static electricity characteristics of said carpet composite.

Abstract: Hematocrit level of a blood sample is measured by flowing the sample along a liquid flow path and using electrodes in the flow path to obtain electrical signals representative of the sample's electrical conductivity and of the concentration of an ion species in the path, either before or after the sample measurement. Electrical signals are obtained for standardizing solution conductivity and ion species concentration. A tentative sample hematocrit value is derived from the sample and standardizing conductivity signals. Then the tentative hematocrit value is corrected with reference to the sample and standardizing ion concentration signals and to the known standardizing solution ion concentration value. A control solution of the ion species at known concentration is used for evaluating the hematocrit detection apparatus; the solution also includes an ion activity enhancing agent.

Abstract: An electrode assembly comprising an organic plastic sample flow-through tube, a portion of the wall of which comprises a membrane, the membrane comprising a matrix of an organic plastic material containing a non-volatile solvent-plasticizer and an ion exchange material dissolved in the solvent plasticizer, the membrane chemically bonded to and integral with said tube. The method of forming the membrane to the tube comprises dissolving the matrix material, the ion exchange material and the non-volatile solvent plasticizer in a volatile solvent, placing the resulting solution on a surface and evaporating the volatile solvent to form the membrane, contacting an edge of the tube to the membrane material, contacting the tube edge with said volatile solvent and allowing the solvent to evaporate.

Abstract: An electrode assembly comprising an organic plastic sample flow-through tube, a portion of the wall of which comprises a membrane, the membrane comprising a matrix of an organic plastic material containing a non-volatile solvent-plasticizer and an ion exchange material dissolved in the solvent plasticizer, the membrane chemically bonded to and integral with said tube. The method of forming the membrane to the tube comprises dissolving the matrix material, the ion exchange material and the non-volatile plasticizer in a volatile solvent, placing the resulting solution on a surface and evaporating the volatile solvent to form the membrane, contacting an edge of the tube to the membrane material, contacting the tube edge with said volatile solvent and allowing the solvent to evaporate.

Abstract: Method and apparatus to score cut the hardbacking of carpet tiles to relieve the inherent stresses therein to alleviate the tendency of the carpet tiles to pucker when laid in operative position on the floor. The back of the carpet tiles are cut by a serrated die cutter to produce an undulating configuration in the backing of the carpet tile.

Abstract: Method and apparatus to score cut the hardbacking of carpet tiles to relieve the inherent stresses therein to alleviate the tendency of the carpet tiles to pucker when laid in operative position on the floor. The back of the carpet tiles are cut by a serrated die cutter to produce an undulating configuration in the backing of the carpet tile.