Patents by Inventor Chok B. Tan
Chok B. Tan 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: 8070998Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: August 17, 2005Date of Patent: December 6, 2011Assignee: Honeywell International Inc.Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
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Publication number: 20100078851Abstract: Methods for preparation of high strength yarns having superior yarn-to-yarn uniformity of denier, tenacity and tensile modulus and uniform unidirectional fibrous sheets. Ballistic composites prepared from these yarns and fibrous sheets have improved uniformity of ballistic resistance. The drawn yarns, fibrous sheets and articles made therefrom are more uniform than the prior art and are useful in applications requiring impact absorption and ballistic resistance, such as body armor, helmets, breast plates, helicopter seats, spall shields; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: ApplicationFiled: September 25, 2006Publication date: April 1, 2010Inventors: Thomas Y-T. Tam, Chok B. Tan, Brian D. Arvidson
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Patent number: 7674409Abstract: Methods for preparation of high strength yarns having superior yarn-to-yarn uniformity of denier, tenacity and tensile modulus and uniform unidirectional fibrous sheets. Ballistic composites prepared from these yarns and fibrous sheets have improved uniformity of ballistic resistance. The drawn yarns, fibrous sheets and articles made therefrom are more uniform than the prior art and are useful in applications requiring impact absorption and ballistic resistance, such as body armor, helmets, breast plates, helicopter seats, spall shields; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: September 25, 2006Date of Patent: March 9, 2010Assignee: Honeywell International Inc.Inventors: Thomas Y-T. Tam, Chok B. Tan, Brian D. Arvidson
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Publication number: 20080191377Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails. ropes, sutures and fabrics.Type: ApplicationFiled: August 17, 2005Publication date: August 14, 2008Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Qiang Zhou
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Patent number: 7115318Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: August 17, 2005Date of Patent: October 3, 2006Assignee: Honeywell International Inc.Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
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Patent number: 7081297Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: July 11, 2005Date of Patent: July 25, 2006Assignee: Honeywell International Inc.Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
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Patent number: 7078099Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: August 17, 2005Date of Patent: July 18, 2006Assignee: Honeywell International Inc.Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
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Patent number: 7078097Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: August 17, 2005Date of Patent: July 18, 2006Assignee: Honeywell International Inc.Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
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Patent number: 6979660Abstract: High strength polyethylene yarns useful in ballistic-resistant, cut-resistant and other applications, fabrics produced from these yarns and the methods by which the yarns and fabrics are made. An untwisted yarn of the invention comprises a plurality of filaments in essentially parallel array and from about 0.5 to 5 weight percent of a water-dispersible binder material covering less than half the surfaces of the filaments. The yarn has a tenacity greater than about 17 g/d, a tensile modulus greater than about 300 g/d, fewer than 20 entanglements/meter in a scoured state and a width less than given by the formula W?0.055?{square root over (d)} where W is the yarn width in millimeters under a tensile load of 0.01 g/d measured on a flat surface and d is the yarn denier.Type: GrantFiled: April 8, 2004Date of Patent: December 27, 2005Assignee: Honeywell International Inc.Inventors: Thomas Y-T. Tam, Chok B. Tan, Alfred L. Cutrone
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Patent number: 6969553Abstract: Gel-spun multi-filament polyethylene yarns possessing a high degree of molecular and crystalline order, and to the drawing methods by which they are produced. The drawn yarns are useful in impact absorption and ballistic resistance for body armor, helmets, breast plates, helicopter seats, spall shields, and other applications; composite sports equipment such as kayaks, canoes, bicycles and boats; and in fishing line, sails, ropes, sutures and fabrics.Type: GrantFiled: September 3, 2004Date of Patent: November 29, 2005Assignee: Honeywell International Inc.Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
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Publication number: 20040258909Abstract: High strength polyethylene yarns useful in ballistic-resistant, cut-resistant and other applications, fabrics produced from these yarns and the methods by which the yarns and fabrics are made. An untwisted yarn of the invention comprises a plurality of filaments in essentially parallel array and from about 0.5 to 5 weight percent of a water-dispersible binder material covering less than half the surfaces of the filaments.Type: ApplicationFiled: April 8, 2004Publication date: December 23, 2004Applicant: Honeywell International Inc.Inventors: Thomas Y-T. Tam, Chok B. Tan, Alfred L. Cutrone
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Patent number: 6764764Abstract: High strength polyethylene yarns useful in ballistic-resistant, cut-resistant and other applications, fabrics produced from these yarns and the methods by which the yarns,and fabrics are made. An untwisted yarn of the invention comprises a plurality of filaments in essentially parallel array and from about 0.5 to 5 weight percent of a water-dispersible binder material covering less than half the surfaces of the filaments. The yarn has a tenacity greater than about 17 g/d, a tensile modulus greater than about 300 g/d, fewer than 20 entanglements/meter in a scoured state and a width less than given by the formula W≦0.055{square root over (d)} where W is the yarn width in millimeters under a tensile load of 0.01 g/d measured on a flat surface and d is the yarn denier.Type: GrantFiled: May 23, 2003Date of Patent: July 20, 2004Assignee: Honeywell International Inc.Inventors: Thomas Y-T. Tam, Chok B. Tan, Alfred L. Cutrone
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Patent number: 5579628Abstract: An entangled multifilament yarn made from high strength filaments having a tenacity of at least about 7 g/d, a tensile modulus of at least about 150 g/d and an energy-to-break of at least about 8 J/g. The yarn is used to make ballistic resistant articles.Type: GrantFiled: January 24, 1995Date of Patent: December 3, 1996Assignee: AlliedSignal Inc.Inventors: James J. Dunbar, Chok B. Tan, Gene C. Weedon, Thomas Y. Tam, Alfred L. Cutrone, Elizabeth S. Bledsoe
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Patent number: 5397627Abstract: An article including a woven fabric for impeding the passage of air, the fabric having an air permeability of less than about 15 cfm/ft.sup.2 and including at least one multifilament yarn having a longitudinal axis, the yarn being made of high strength filaments having a tenacity of at least about 7 g/d, a tensile modulus of at least about 150 g/d and an energy-to-break of at least about 8 J/g. Preferably, the high strength filaments are extended chain polyethylene.Type: GrantFiled: March 8, 1994Date of Patent: March 14, 1995Assignee: AlliedSignal Inc.Inventors: James J. Dunbar, Chok B. Tan, Gene C. Weedon, Thomas Y. Tam, Alfred L. Cutrone, Elizabeth S. Bledsoe