Class / Patent application number | Description | Number of patent applications / Date published |
264171260 | Producing hollow composite | 11 |
20100244307 | METHOD AND APPARATUS FOR GROWING NANOTUBE FORESTS, AND GENERATING NANOTUBE STRUCTURES THEREFROM - The present invention provides apparatus and methods for growing fullerene nanotube forests, and forming nanotube films, threads and composite structures therefrom. In some embodiments, an interior-flow substrate includes a porous surface and one or more interior passages that provide reactant gas to an interior portion of a densely packed nanotube forest as it is growing. In some embodiments, a continuous-growth furnace is provided that includes an access port for removing nanotube forests without cooling the furnace substantially. In other embodiments, a nanotube film can be pulled from the nanotube forest without removing the forest from the furnace. A nanotube film loom is described. An apparatus for building layers of nanotube films on a continuous web is described. | 09-30-2010 |
20120187595 | EXTRUSION MOLDING DIE, EXTRUSION MOLDING APPARATUS, MEDICAL TUBE, AND METHOD FOR PRODUCING MEDICAL TUBE - An extrusion molding die is provided which produces a tube that contains a portion in which the cross-sectional area ratio of an inner layer and outer layer in axial cross-section continuously varies, wherein said cross-sectional area ratio can be changed in a short time. The extrusion molding die | 07-26-2012 |
20120205834 | METHOD FOR GROWING CARBON NANOTUBE FORESTS, AND GENERATING NANOTUBE STRUCTURES THEREFROM, AND APPARATUS - The present invention provides apparatus and methods for growing fullerene nanotube forests, and forming nanotube films, threads and composite structures therefrom. In some embodiments, an interior-flow substrate includes a porous surface and one or more interior passages that provide reactant gas to an interior portion of a densely packed nanotube forest as it is growing. In some embodiments, a continuous-growth furnace is provided that includes an access port for removing nanotube forests without cooling the furnace substantially. In other embodiments, a nanotube film can be pulled from the nanotube forest without removing the forest from the furnace. A nanotube film loom is described. An apparatus for building layers of nanotube films on a continuous web is described. | 08-16-2012 |
20120261857 | CATHETER HAVING A COEXTRUDED FLUOROPOLYMER LAYER - A catheter shaft including an elongate tubular member including a first polymeric layer and a second polymeric layer bonded to the first polymeric layer. The first polymeric layer is formed of a polymer generally not bondable to fluoropolymers, and the second polymeric layer is formed of a fluoropolymer bonded to the polymer of the first polymeric layer. The fluoropolymer of the second polymeric layer is a functionalized polyvinylidene fluoride which has a bonding affinity to the polymer of the first polymeric layer. The functionalized polyvinylidene fluoride includes reactive functional groups chemically bonded to a polymer chain of a polyvinylidene fluoride which readily bond to the polymer chain of the polymer of the first polymeric layer. | 10-18-2012 |
20140151922 | METHOD OF CREATING MULTILAYERED PRODUCTS THROUGH THE FOLDING OF CONTINUOUS LAYERS - A method for the creation of a plurality of continuously folded layers. This approach for creating multilayered products begins with a typical flow channel for a product in which the cross-section of this flow channel is an annular ring. The flow channel is then morphed to create folds in the flow channel. Fold patterns are manufactured into the channel walls so as to gradually modify the contour of the stream. These folds are oriented and propagated in such a way so that the flow can be converged back to a flow passage with a typical cross section but now with a multiplied number of layers. This process may be repeated to multiply the number of layers. The number of folded layers can include 3-10 layers, ten to hundreds of layers and ten to thousands of layers. The layers remain continuous around the product. | 06-05-2014 |
20150084229 | FABRIC AND DIE DESIGN FOR DIVIDED CONDUIT - An apparatus for forming a conduit having at least one strip-shaped substrate dividing the conduit into channels. The apparatus contains an extrusion die having an exit and defining a flow direction for polymeric material forming the conduit. The extrusion die contains a first point for the introduction into the extrusion die of polymeric material forming a first polymeric layer of the conduit, a second point for the introduction into the extrusion die of polymeric material forming a second polymeric layer of the conduit, and a slot within the extrusion die having a thickness, a width, a first edge, and a second edge. The slot is configured for receipt of a strip-shaped substrate and extends in the flow direction along the extrusion die. The thickness of the slot varies along the width of the slot and the thickness of the slot is greatest at the first edge and second edge of the slot. | 03-26-2015 |
264171270 | Having three or more layers of at least two different materials | 4 |
20090065968 | PERMANENTLY LUBRICATED FILM GASKET AND METHOD OF MANUFACTURE - A permanently lubricated film gasket for providing a fluid-tight seal between a corrugated pipe and a smooth annular section of an outer pipe or section when the corrugated pipe and the outer pipe or section are in a relative surrounded and surrounding relationship. A first portion of the gasket is shaped to fit within a groove or recess of the corrugated pipe. A second portion of the gasket extends from the first portion. The second portion is at least partially comprised of permanently lubricated film for facilitating in the connection of the pipes along a single direction. | 03-12-2009 |
20090166913 | Catheter Shaft and Method of its Manufacture - A method of manufacturing a catheter shaft includes the steps of forming an inner layer of a first polymeric material, forming a plait matrix layer including a second polymeric material about the inner layer, and forming an outer layer of a third polymeric material about the plait matrix layer. The plait matrix layer includes a braided wire mesh partially or fully embedded within the second polymeric material, which is different from at least one of the first polymeric material forming the inner layer and the third polymeric material forming the outer layer. The second polymeric material has a higher yield strain and/or a lower hardness than at least the first polymeric material, and preferably both the first and the third polymeric materials. The first polymeric material and the third polymeric material may be different or the same. The catheter shaft may be formed by stepwise extrusion, co-extrusion, and/or reflow processes. | 07-02-2009 |
20090267259 | Medical Devices - Medical devices and methods of making the devices are described. In some embodiments, the devices include multiple layers, and one or more layers can include a nanocomposite material. | 10-29-2009 |
20110006453 | HYDRODYNAMIC SPINNING OF POLYMER FIBER IN COAXIAL LAMINAR FLOWS - A polymer fiber is formed by hydrodynamic spinning. Fluids are forced to flow through a conduit to form a laminar flow comprising three or more layers of generally coaxial fluid flows, at respective flow rates selected to define a cross-section of a tubular middle layer of the fluid flows. The middle layer comprises a cross-linkable polymer precursor. Another layer of the fluid flows comprise a cross-linking agent. The polymer precursor, cross-linking agent and fluids are selected to prevent substantial diffusion of the polymer precursor away from the middle layer, and to allow a portion of the cross-linking agent to diffuse from the another layer into the middle layer to facilitate cross-linking of the polymer precursor in the middle layer to form a tubular polymer layer in a polymer fiber. The polymer layer thus has a cross-section generally corresponding to the cross-section of the middle layer. | 01-13-2011 |
264171280 | Polyamide (e.g., nylon,, etc.) or addition polymer of at least one monoethylenically unsaturated monomer (e.g., polyethylene, polypropylene, polystyrene, etc.) containing layer | 1 |
20080237917 | Plastics Pipe - A method for the production of a plastics pipe ( | 10-02-2008 |