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| Number | Title | Issue Date |
| 7090792 | Method of selectively shaping hollow fibers of heat exchange catheter A group of multiple hollow fibers may be shaped to introduce angular divergence among the fibers, or to introduce a selected longitudinal oscillation into the fibers. In one shaping technique, the fibers are held in parallel while upper and lower crimping assemblies... | 08/15/2006 |
| 5557862 | Process and apparatus for the continuous heat setting of yarn laid down in loops In the case of a process for the continuous heat setting of yarn, the yarn, laid down in loops on transport belts, is fed through a heat setting chamber which operates with superheated steam and under atmospheric pressure. Because of the entry and exit op... | 09/24/1996 |
| 5361468 | System for automatically rippling and hackling wig yarns A system for automatically rippling and hackling wig yarns. The system comprises a rippling heater having a pair of wave rollers each having a waveformed surface and a heating coil, a cooler having a cooling belt and a blast unit comprising a blast fan, a... | 11/08/1994 |
| 5265314 | Process and device for crimping yarns, with presteaming In the crimping process the yarns (1) are introduced continuously into a crimping machine (3) in which they are subjected to a compression which has the effect of crimping them. Before being introduced into the crimping machine (3) the yarns (1) are subje... | 11/30/1993 |
| 5210916 | Machine for crimping yarns with positive driving of the yarns A machine for crimping yarns has an elongate chamber (14) with, at one end, an opening (15) for introducing the yarn (1) to be crimped and, at the other end, an opening (16) for exiting the crimped yarn. The wall (17) of the chamber (14) includes an elong... | 05/18/1993 |
| 4979274 | Process and apparatus for crimping fibers An apparatus for crimping and permanently heat setting a fiber or tow without stress or tension, comprising a mechanical crimping means, a conveying means which receives the crimped fiber or tow, and a heating or irradiation zone through which the conveyi... | 12/25/1990 |
| 4977654 | Process and apparatus for crimping fibers An apparatus for crimping and permanently heat setting a fiber or tow without non-uniform stress or tension, comprising a conveying means having a multiplicity of openings, means for supplying the fiber or tow across the conveying means, means for inserti... | 12/18/1990 |
| 4241478 | Apparatus for shrinking of textile webs Apparatus for mechanically crimping and shrinking textile webs mainly comprises an elongated chamber through which the textile web is moved in a predetermined direction, at least two endless crimping grates arranged in said chamber and each including an e... | 12/30/1980 |
| 4125923 | Machine for the crimping of yarns, in particular for producing false, wavy hairs for wigs A machine for the crimping of yarns, in particular for producing false, wavy hairs for wigs, wherein the yarn, coming from a delivery package, is spirally wound about a cylindrical, supporting element, said yarn being eccentrically led through a mandrel, ... | 11/21/1978 |
| 3984970 | Method and apparatus for manufacturing helically coiled coupling elements for slide fasteners A method and apparatus for manufacturing helically coiled coupling elements for slide fasteners. There are provided a filament supply unit, a filament coiling unit, a filament drive unit interposed between the supply unit and the coiling unit, and a tensi... | 10/12/1976 |
