Melt spinning process
Patent 4376743 Issued on March 15, 1983. Estimated Expiration Date: 
June 12, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 12, 2001. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2804645 3109195 3219739 3323168 3387327 3405424 3635641 3834251 3920784 C-shaped polyester filaments Patent #: 4176211 InventorApplicationNo. 06/273135 filed on 06/12/1981US Classes:264/103, WITH TWINING, PLYING, BRAIDING, OR TEXTILE FABRIC FORMATION264/177.13, Filament (e.g., T-configured, dog-bone, trilobal, etc.)425/461, MEANS PROVIDING A SHAPING ORIFICE425/465Including means forming products with distinct portions of varying cross sectionExaminersPrimary: Woo, Jay H.International ClassesA23G 3/02 (20060101)A23G 3/10 (20060101) D01D 4/00 (20060101) D01D 5/08 (20060101) D01D 5/32 (20060101) D01D 4/02 (20060101) D01D 5/22 (20060101) D01D 5/00 (20060101) D01D 5/30 (20060101) AbstractA spinneret has a number of combined orifices having different nominal dimensions. Yarns spun from such spinnerets have less doff-to-doff average standard deviation of yarn bulk.Field of SearchWith crimping or crinkling of strands of filaments | |
