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| Number | Title | Issue Date |
| 4430852 | Polyolefin products and methods of making A process for making filament yarn products is disclosed in which polypropylene, having a molecular weight distribution of less than about 7 and a melt index between about 20 and about 60 is melt spun to produce an as-spun product or additionally interlac... | 02/14/1984 |
| 4408376 | Apparatus for drawing yarn A plurality of yarns are drawn from supply sources onto feed rolls and over a set of draw rolls in adjacent relationship. The yarns are urged into a desired contiguous relationship on the draw rolls by a concave guide surface in the course of passing from... | 10/11/1983 |
| 4384098 | Filamentary polypropylene and method of making In accordance with the present invention, novel lustrous, filamentary polypropylene products are produced by melt spinning a polypropylene resin, having a molecular weight distribution of less than about 7 and a melt flow between about 20 and about 60, at... | 05/17/1983 |
| 4229404 | Method for drawing yarn A plurality of yarns are drawn from supply sources onto feed rolls and over a set of draw rolls in adjacent relationship. The yarns are urged into a desired contiguous relationship on the draw rolls by a concave guide surface in the course of passing from... | 10/21/1980 |
| 4219997 | Spun-like continuous multifilament yarn A process is disclosed for producing a continuous multifilament yarn of melt-spinnable, polymeric material which is essentially free from stretch and which comprises draw-texturing a first continuous filament yarn end, combining the first end with a secon... | 09/02/1980 |
| 4185451 | Apparatus and process suitable for twist-drawing a yarn A yarn is twist-drawn on an apparatus employing a 2-for-1 twist spindle; at least one guide roll positioned above the spindle; means suitable for receiving a yarn from said guide roll and drawing the yarn; and means suitable for winding the drawn yarn, wh... | 01/29/1980 |
| 4112667 | Apparatus and process suitable for twist-drawing a yarn A yarn is twist-drawn on an apparatus employing a 2-for-1 twist spindle; at least one guide roll positioned above the spindle; means suitable for receiving a yarn from said guide roll and drawing the yarn; and means suitable for winding the drawn yarn, wh... | 09/12/1978 |
| 4078371 | Apparatus and process suitable for twisting a yarn A yarn is twisted by passing the yarn wound on a package to a tensioning zone and then passing the yarn to a 2-for-1 twist spindle and twisting the yarn. The tension applied to the yarn in the tensioning zone is the result of the sinusoidal path of the ya... | 03/14/1978 |
| 4040153 | Method and apparatus for restraining a yarn wad Yarn in the form of a yarn wad is passed to a cooling and restraining zone wherein the surfaces of a plurality of balls are pressed directly against the surface of the yarn wad and simultaneously the movement of the balls relative to the yarn wad is restr... | 08/09/1977 |
| 4012816 | Method and apparatus for processing thermoplastic yarn In processing thermoplastic yarn a value is monitored to determine whether said value is above or below a predetermined value. The monitored value is related to the denier of the yarn and associated with a yarn plug. The interval for the monitored value a... | 03/22/1977 |
| 3936916 | Method and apparatus for the production of textured yarn Yarn is passed to a texturing zone wherein a yarn wad is formed, and the yarn wad is then passed through a flexible sleeve in a restraining zone wherein the yarn wad is restrained by a plurality of individual stacked members. In addition an apparatus is p... | 02/10/1976 |
