Patents by Inventor Joe F. London, Jr.
Joe F. London, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6333106Abstract: A stable partially oriented poly(trimethylene terephthalate) yarn suitable for use in subsequent drawing and/or draw-texturing operations characterized by an elongation to break of at least 110%, and a process for false-twist texturing a partially oriented poly(trimethylene terephthalate) yarn are disclosed.Type: GrantFiled: March 13, 2001Date of Patent: December 25, 2001Assignee: E. I. Du Pont De Nemours and CompanyInventors: James M Howell, Joe F London, Jr., Michelle H Watkins
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Patent number: 5417902Abstract: Polyester mixed fine filament yarns having excellent mechanical quality and uniformity, and preferably with a balance of good dyeability and shrinkage, are prepared by a simplified direct spin-orientation process by selection of polymer and spinning conditions.Type: GrantFiled: July 23, 1993Date of Patent: May 23, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: David G. Bennie, Robert J. Collins, Hans R. E. Frankfort, Stephen B. Johnson, Benjamin H. Knox, Joe F. London, Jr., Elmer E. Most, Jr., Girish A. Pai
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Patent number: 5145623Abstract: Drawing, especially cold-drawing, or hot-drawing or other heat-treatments of spin-oriented crystalline polyester filaments, and particularly polyester feed yarns, that have been prepared by spinning at speeds of, e.g., 4 km/min, and have low shrinkage and no natural draw ratio in the conventional sense, provides useful technique for obtaining uniform drawn filaments of desired denier and thereby provides improved flexibility to obtain filaments and yarns of various sub-deniers.Type: GrantFiled: November 1, 1991Date of Patent: September 8, 1992Assignee: E. I. du Pont de Nemours and CompanyInventors: John P. Hendrix, Jr., Benjamin H. Knox, Joe F. London, Jr., James B. Noe
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Patent number: 4892557Abstract: A process for forming crepe fabrics on a shuttleless loom is provided which includes temporary stabilization of highly twisted (e.g., 40-70 TPI) filament yarn. To this end, hot melt size is applied at a predetermined temperature in predetermined amounts (e.g., add-on of about 10.5-13.5%) immediately after twisting so as to reduce the liveliness of the yarn and to thereby permit it to be woven. After weaving, the yarn stabilization is reversed by a desizing operation. The fabric is subsequently heat treated to develop crepe characteristics.Type: GrantFiled: October 27, 1986Date of Patent: January 9, 1990Assignee: Burlington Industries, Inc.Inventors: Delano M. Conklin, Joe F. London, Jr.
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Patent number: 4453297Abstract: A method and apparatus for producing novelty yarn with an unusual configuration. An effect yarn is fed to a novelty yarn jet, and a core yarn is fed to a different yarn port in the same jet, the core yarn being maintained substantially taut. The combined core and effect novelty yarn is taken up from the jet and periodically (preferably pseudo-randomly) a pronounced variation in linear density is provided in the combined yarn. This linear density variation is accomplished by introducing a first fluid pulse into the jet at a first position to form a loop in the effect yarn, which loop extends substantially coincident with a portion of the core yarn, and then utilizing a second fluid pulse at a spaced position from the first pulse to impart a spiraling and/or rotating action to the loop of effect yarn to wind the effect yarn around the core yarn.Type: GrantFiled: July 29, 1981Date of Patent: June 12, 1984Assignee: Burlington Industries, Inc.Inventors: Joe F. London, Jr., Charles D. Pugh
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Patent number: 4311000Abstract: A method and apparatus for producing novelty yarn with an unusual configuration. An effect yarn is fed to a novelty yarn jet, and a core yarn is fed to a different yarn port in the same jet, the core yarn being maintained substantially taut. The combined core and effect novelty yarn is taken up from the jet and periodically (preferably pseudo-randomly) a pronounced variation in linear density is provided in the combined yarn. This linear density variation is accomplished by introducing a first fluid pulse into the jet at a first position to form a loop in the effect yarn, which loop extends substantially coincident with a portion of the core yarn, and then utilizing a second fluid pulse at a spaced position from the first pulse to impart a spiraling and/or rotating action to the loop of effect yarn to wind the effect yarn around the core yarn.Type: GrantFiled: August 29, 1979Date of Patent: January 19, 1982Assignee: Burlington Industries, Inc.Inventors: Joe F. London, Jr., Charles D. Pugh
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Patent number: 4016715Abstract: A method and apparatus for one step texturing and package preparation of high stretch continuous filament yarn for ultimate package dyeing. Continuous filament yarn is fed from a supply across a false twisting assembly, and a false twist is imparted thereto. The yarn is then passed over a roller and directed generally downwardly toward a takeup assembly including a dye spring. The yarn is overfed to the dye spring so that the yarn may relax completely and will have maximum skein shrinkage after dyeing. This is accomplished by passing the yarn through an air jet, resulting in an overfeed of up to 70-100 percent, which overfeed is not possible with conventional methods. The yarn package formed is soft, and may be package dyed according to conventional procedures.Type: GrantFiled: October 14, 1975Date of Patent: April 12, 1977Assignee: Burlington Industries, Inc.Inventor: Joe F. London, Jr.
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Patent number: 4004329Abstract: The present invention provides an apparatus for forming a textured air jet yarn by passing a yarn through texturing means whereby the yarn is false twisted and heat set in the twisted condition, passing the textured yarn through an air jet where the air is fed into the yarn at an angle of 45.degree.-75.degree. and passed cocurrently through the jet with the yarn to interlace the yarn and then collecting the textured, interlaced yarn.Type: GrantFiled: September 18, 1975Date of Patent: January 25, 1977Assignee: Burlington Industries, Inc.Inventors: Joe F. London, Jr., Jean-Louis Lauber
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Patent number: 3972174Abstract: The present invention provides a textured air jet interlaced yarn comprising a plurality of continuous synthetic thermoplastic filaments, the yarn being characterized by repeating sections of about 1/8-1 inch in length, each section being composed of a relatively open portion of bulky and lofty false twisted multifilaments and a relatively short node portion where the multifilaments are brought closer together and are interlaced and encircled. The disclosure also relates to a fabric made from the aforementioned yarn.Type: GrantFiled: July 18, 1974Date of Patent: August 3, 1976Assignee: Burlington Industries, Inc.Inventors: Joe F. London, Jr., Jean-Louis Lauber
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Patent number: RE31808Abstract: A method and apparatus for producing novelty yarn with an unusual configuration. An effect yarn is fed to a novelty yarn jet, and a core yarn is fed to a different yarn port in the same jet, the core yarn being maintained substantially taut. The combined core and effect novelty yarn is taken up from the jet and periodically (preferably pseudo-randomly) a pronounced variation in linear density is provided in the combined yarn. This linear density variation is accomplished by introducing a first fluid pulse into the jet at a first position to form a loop in the effect yarn, which loop extends substantially coincident with a portion of the core yarn, and then utilizing a second fluid pulse at a spaced position from the first pulse to impart a spiraling and/or rotating action to the loop of effect yarn to wind the effect yarn around the core yarn.Type: GrantFiled: February 4, 1983Date of Patent: January 22, 1985Assignee: Burlington Industries, Inc.Inventors: Joe F. London, Jr., Charles D. Pugh