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US Patent 4698956 - Composite yarn and method for making the same
US Patent Issued on October 13, 1987
Estimated Patent Expiration Date:
May 29, 2006Estimated 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.
Estimated Patent Expiration Date:
May 29, 2006Estimated 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.AbstractA continuous process of making a blended yarn of staple fiber and long-fiber or filamentary material in which the long-fiber or filamentary material is passed through a rupture zone to produce lengths thereof which are fed directly into an air stream with the staple fibers to produce an intimate blend which is conveyed by the air stream directly to an open end spinning device which produces the yarn. | InventorsAssigneeApplicationNo. 06/867942 filed on 05/29/1986US Classes:57/2, Stapilizing57/255, Synthetic material57/315, With drafting57/350, With fluid jet57/351, With other type crimping or texturing57/403, Fluid57/405With strand controlled stoppingField of Search57/252, Staple fiber blends57/254, Crimped or bulked fibers57/255, Synthetic material57/256, With natural fibers57/2, Stapilizing57/5, With loose fibers57/6, With other operations57/400, Open end spinning57/401, Friction57/403, Fluid57/408, With fiber separating and/or feeding57/409, Plural or variable feed57/315With draftingExaminersPrimary: Watkins, DonaldAttorney, Agent or FirmUS Patent References2260229, 2305312, 3492804, 3596458, 3605395, 3650104, 3768246, 3822543, 3864902, 4457345Blended yarn containing active carbon staple fibers, and fabric woven therefromIssued on: 07/03/1984 Inventor: von Blucher , et al. International ClassesD01G 1/08 (20060101)D01H 4/00 (20060101) D01G 1/00 (20060101) D01H 4/30 (20060101) |
