Abstract:
The invention relates to a device for the production of braided packaging, comprising a field composed of a plurality of rotatably driven flyer wheels (1) which are arranged in several adjacent rows, and a plurality of bobbins which can be connected to said fly wheels (1) and are embodied as a thread store for a respective braid thread (6). Braid threads (6) are transported on defined tracks through said field during the removal of the braid thread (6) by transfer from one flyer wheel (1) to another flyer wheel (1) during the braiding process. The tracks are each constructed as peripheral bobbin track segments on individual flyer wheels. The peripheral track segments (s1, s3) located on the flyer wheels (1) of an outer row of the field are shorter than similar peripheral track segments (s2, s4) of the flyer wheels (1) in the outer row of the field on the opposite side. In a braided packaging produced according to the invention, the braid length of one section of braid thread between two successive intersections with other braid threads is shorter than the braid length of a section of braid thread in a similar braiding on the opposite-lying packaging side. The braided packaging thus produced is easy to handle and exhibits good sealing and wearing properties.
Abstract:
A machine for producing complex-shaped, three-dimensional engineered fiber preforms having unitary, integral and seamless structures, a method for making the preforms on the machine, and reforms produced thereby. The integral design and structure of the preform is formed by a combination of interlacing and non-interlacing fiber systems that permits variable cross-sectional area and dimensions from a first end to a second end along an axis via selective activation and control of at least one module, preferably a plurality of moduli connected to each other in any desirable configuration.
Abstract:
A three-dimensional braid structure comprising a plurality of interlocked layers is created by causing a plurality of package carriers (15) of yarn (16) to move along a plurality of serpentine paths (6) defined by track modules. The track modules extend generally in one direction to define a longitudinally extending path corresponding to a first layer of the braid structure and in another direction to provide at least one crossover path (7, 8, 17) between adjacent serpentine paths (6). The package carriers (15) which move in the first direction create a first layer of braid and, at a crossover path (7, 8, 17), move between adjacent serpentine paths (6) to cause the yarn (16) forming the first layer of braid to interlock with the braid of an adjacent layer.
Abstract:
A braiding machine for that produces three-dimensional braided matrices with a suitable pore structure for even and random distribution and in-growth of cells for tissue growth and repair is described herein. Methods for making three-dimensional matrices with controlled thicknesses and porosity and the resulting matrices are also described. The machine contains curved arches that hold the plurality of carriers. At least two of the arches are moveable in a side-to-side direction. Additionally, a controlled pushing mechanism pushes the carriers up and down the slots in the arches. These motions allow one to form three-dimensional braided matrices that provide sufficient porosity and mechanical support for tissue growth and repair in a variety of sites in the body.
Abstract:
A machine for producing complex-shaped, three-dimensional engineered fiber preforms having unitary, integral and seamless structures, a method for making the preforms on the machine, and reforms produced thereby. The integral design and structure of the preform is formed by a combination of interlacing and non-interlacing fiber systems that permits variable cross-sectional area and dimensions from a first end to a second end along an axis via selective activation and control of at least one module, preferably a plurality of moduli connected to each other in any desirable configuration.
Abstract:
The present application pertains to a braided dual- sided compression packing seal, methods for producing and using such a seal, and apparatuses suitable for producing such a seal. The braided dual- sided compression packing seal is made up of two or more different materials that are braided together in such a way that, in cross-section, the compression packing seal has an asymmetrical configuration relative to a first axis that is substantially perpendicular to the longitudinal axis and is substantially perpendicular to a side of the compression packing seal. Accordingly, when viewed in a cross-sectional plane, the compression packing seal may expose substantially only a first material along a first side of the seal, and substantially only a second material along a second side of the seal.
Abstract:
The present application pertains to a braided dual- sided compression packing seal, methods for producing and using such a seal, and apparatuses suitable for producing such a seal. The braided dual- sided compression packing seal is made up of two or more different materials that are braided together in such a way that, in cross-section, the compression packing seal has an asymmetrical configuration relative to a first axis that is substantially perpendicular to the longitudinal axis and is substantially perpendicular to a side of the compression packing seal. Accordingly, when viewed in a cross-sectional plane, the compression packing seal may expose substantially only a first material along a first side of the seal, and substantially only a second material along a second side of the seal.
Abstract:
A three-dimensional fabric for reinforcing the composite material so that said material is irregularly functional with yarn orientation angle changed locally and optionally when weaving a three-dimensional fabric by the rotor-carrier type loom for such kind of fabric; and a method of manufacturing said fabric. In said fabric, a large number of yarns (1) oriented slantwise with respect to the lengthwise direction of the fabric are folded back at the surface of the fabric and interlaced with each other continuously in the lengthwise direction, and portions (32 to 35) at which inclination angles of continuous yarns (1) are partially varied between adjacent portions of the fabric are provided on a part of the section of the fabric. This fabric is woven in such steps that, during normal weaving cycle in which all rotors in the rotor-carrier type three-dimensional fabric weaving loom are divided into two groups each containing rotors not adjacent to each other so that rotors in one group are turned in one direction by 90° or 180° and then those in the other group are turned in the counter direction by 90° or 180°, a partial normal weaving cycle in which part of rotors are stopped from turning is repeated as many times as required.