Patents by Inventor Thomas Yiu-Tai Tam

Thomas Yiu-Tai Tam 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).

  • Melt spinning blends of UHMWPE and HDPE and fibers made therefrom
    Patent number: 8426510
    Abstract: Compositions that are intimate blends of ultrahigh molecular weight polyethylene and high-density polyethylene (HDPE), and which are melt spinnable. The compositions include certain quasi-spherical particles. Also disclosed is a method of melt spinning from such compositions and the multi-filament fibers produced thereby. The fibers of the invention are useful in a variety of applications.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: April 23, 2013
    Assignee: Honeywell International Inc.
    Inventors: Thomas Yiu-Tai Tam, Norman Aminuddin, John A. Young
  • SURFACE TREATED YARN AND FABRIC WITH ENHANCED PHYSICAL AND ADHESION PROPERTIES AND THE PROCESS OF MAKING
    Publication number: 20130059112
    Abstract: Methods for modifying high tenacity fibers without reducing the physical strength properties of the fibers. More particularly, methods for modifying fibers with a plasma treatment or a corona treatment without reducing the physical strength properties of the fibers.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 7, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: THOMAS YIU-TAI TAM, RALF KLEIN, HENRY GERARD ARDIFF, JOHN ARMSTRONG YOUNG, MARK TALLENT
  • LOW BFS COMPOSITE AND PROCESS OF MAKING THE SAME
    Publication number: 20130059496
    Abstract: Methods for producing composites useful for the formation of both soft and hard armor. More particularly, methods for the production of ballistic resistant fibrous composites having improved ballistic resistance properties, including low backface signature. The methods employ fiber surface treatments to improve the anchorage of substances applied onto fiber surfaces, achieving a low delamination tendency and corresponding benefits.
    Type: Application
    Filed: August 24, 2012
    Publication date: March 7, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: HENRY GERARD ARDIFF, JOHN ARMSTRONG YOUNG, RALF KLEIN, THOMAS YIU-TAI TAM
  • HIGH PERFORMANCE BALLISTIC COMPOSITES AND METHOD OF MAKING
    Publication number: 20130059494
    Abstract: Fabrication of ballistic resistant fibrous composites having improved ballistic resistance properties and retained or improved ballistic penetration resistance properties. The composites are formed from high tenacity fibers having a tenacity of at least about 33 g/denier at ambient room temperature after being modified by a plasma treatment or by a corona treatment, without tenacity loss due to said treatments.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 7, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: THOMAS YIU-TAI TAM, DAVID A. HURST, MARK TALLENT, HENRY GERARD ARDIFF, JOHN ARMSTRONG YOUNG, RALF KLEIN, BRADLEY GRUNDEN
  • APPARATUS AND METHOD TO MEASURE BACK FACE SIGNATURE OF ARMOR
    Publication number: 20130055790
    Abstract: An apparatus and method for evaluating the backface signature of flat panel ballistic resistant composites with accuracy, repeatability and improved correlation to the expected backface signature of shaped ballistic resistant composites in actual field use.
    Type: Application
    Filed: August 24, 2012
    Publication date: March 7, 2013
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: ASHOK BHATNAGAR, HENRY GERARD ARDIFF, DAVID A. HURST, THOMAS YIU-TAI TAM, TYLER BARTELT, BRIAN DUANE ARVIDSON
  • Process for the preparation of UHMW multi-filament poly(alpha-olefin) yarns
    Patent number: 8361366
    Abstract: A process for preparing ultra-high molecular weight poly(alpha-olefin) (UHMWPO) multi-filament yarns having improved tensile properties at higher productivity. The process includes drawing a solution yarn, then drawing a gel yarn and then drawing a dry yarn continuously in sequence to form a partially oriented yarn, winding up the partially oriented yarn, unrolling the yarn, drawing the partially oriented yarn to form a highly oriented yarn, cooling the highly oriented yarn under tension and winding up the highly oriented yarn.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: January 29, 2013
    Assignee: Honeywell International Inc.
    Inventors: Thomas Yiu-Tai Tam, Qiang Zhou, John A. Young, Charles R. Arnett, John E. Hermes
  • MELT SPINNING BLENDS OF UHMWPE AND HDPE AND FIBERS MADE THEREFROM
    Publication number: 20120004358
    Abstract: Compositions that are intimate blends of ultrahigh molecular weight polyethylene and high-density polyethylene (HDPE), and which are melt spinnable. The compositions include certain quasi-spherical particles. Also disclosed is a method of melt spinning from such compositions and the multi-filament fibers produced thereby. The fibers of the invention are useful in a variety of applications.
    Type: Application
    Filed: September 2, 2011
    Publication date: January 5, 2012
    Inventors: Thomas Yiu-Tai Tam, Norman Aminuddin, John A. Young
  • Process for drawing gel-spun polyethylene yarns
    Patent number: 8070998
    Abstract: 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: Grant
    Filed: August 17, 2005
    Date of Patent: December 6, 2011
    Assignee: Honeywell International Inc.
    Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
  • Melt spinning blends of UHMWPE and HDPE and fibers made therefrom
    Patent number: 8057897
    Abstract: Compositions that are intimate blends of ultrahigh molecular weight polyethylene and high-density polyethylene (HDPE), and which are melt spinnable. The compositions include certain quasi-spherical particles. Also disclosed is a method of melt spinning from such compositions and the multi-filament fibers produced thereby. The fibers of the invention are useful in a variety of applications.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: November 15, 2011
    Assignee: Honeywell International Inc.
    Inventors: Thomas Yiu-Tai Tam, Norman Aminuddin, John A. Young
  • MELT SPINNING BLENDS OF UHMWPE AND HDPE AND FIBERS MADE THEREFROM
    Publication number: 20110171468
    Abstract: Compositions that are intimate blends of ultrahigh molecular weight polyethylene and high-density polyethylene (HDPE), and which are melt spinnable. The compositions include certain quasi-spherical particles. Also disclosed is a method of melt spinning from such compositions and the multi-filament fibers produced thereby. The fibers of the invention are useful in a variety of applications.
    Type: Application
    Filed: March 23, 2011
    Publication date: July 14, 2011
    Inventors: Thomas Yiu-Tai Tam, Norman Aminuddin, John A. Young
  • Melt spinning blends of UHMWPE and HDPE and fibers made therefrom
    Patent number: 7935283
    Abstract: Compositions that are intimate blends of ultrahigh molecular weight polyethylene and high-density polyethylene (HDPE), and which are melt spinnable. The compositions include certain quasi-spherical particles. Also disclosed is a method of melt spinning from such compositions and the multi-filament fibers produced thereby. The fibers of the invention are useful in a variety of applications.
    Type: Grant
    Filed: January 9, 2009
    Date of Patent: May 3, 2011
    Assignee: Honeywell International Inc.
    Inventors: Thomas Yiu-Tai Tam, Norman Aminuddin, John A. Young
  • Melt spinning blends of UHMWPE and HDPE and fibers made therefrom
    Publication number: 20100178503
    Abstract: Compositions that are intimate blends of ultrahigh molecular weight polyethylene and high-density polyethylene (HDPE), and which are melt spinnable. The compositions include certain quasi-spherical particles. Also disclosed is a method of melt spinning from such compositions and the multi-filament fibers produced thereby. The fibers of the invention are useful in a variety of applications.
    Type: Application
    Filed: January 9, 2009
    Publication date: July 15, 2010
    Inventors: Thomas Yiu-Tai Tam, Norman Aminudddin, John A. Young
  • Heating Apparatus and Process for Drawing Polyolefin Fibers
    Publication number: 20080295307
    Abstract: A heating apparatus and process useful for drawing ultrahigh molecular weight polyolefin fibers, such as polyethylene libers. The heating apparatus includes a first set of rolls and a plurality of aligned ovens. The apparatus includes a second set of rolls at the exit of the ovens which rolls are adapted to provide the desired drawing of the polyolefin fibers. The apparatus and process provide a single draw step in a heated environment, with the use of preferably four or six horizontal ovens.
    Type: Application
    Filed: December 7, 2006
    Publication date: December 4, 2008
    Inventor: Thomas Yiu-tai Tam
  • Drawn gel-spun polyethylene yarns and process for drawing
    Publication number: 20080191377
    Abstract: 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: Application
    Filed: August 17, 2005
    Publication date: August 14, 2008
    Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Qiang Zhou
  • Heating apparatus and process for drawing polyolefin fibers
    Patent number: 7370395
    Abstract: A heating apparatus and process useful for drawing ultrahigh molecular weight polyolefin fibers, such as polyethylene fibers. The heating apparatus includes a first set of rolls and a plurality of aligned ovens. The apparatus includes a second set of rolls at the exit of the ovens which rolls are adapted to provide the desired drawing of the polyolefin fibers. The apparatus and process provide a single draw step in a heated environment, with the use of preferably four or six horizontal ovens.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: May 13, 2008
    Assignee: Honeywell International Inc.
    Inventor: Thomas Yiu-Tai Tam
  • Heating apparatus and process for drawing polyolefin fibers
    Publication number: 20070137064
    Abstract: A heating apparatus and process useful for drawing ultrahigh molecular weight polyolefin fibers, such as polyethylene fibers. The heating apparatus includes a first set of rolls and a plurality of aligned ovens. The apparatus includes a second set of rolls at the exit of the ovens which rolls are adapted to provide the desired drawing of the polyolefin fibers. The apparatus and process provide a single draw step in a heated environment, with the use of preferably four or six horizontal ovens.
    Type: Application
    Filed: November 1, 2006
    Publication date: June 21, 2007
    Inventor: Thomas Yiu-Tai Tam
  • Drawn gel-spun polyethylene yarns and process for drawing
    Patent number: 7115318
    Abstract: 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: Grant
    Filed: August 17, 2005
    Date of Patent: October 3, 2006
    Assignee: Honeywell International Inc.
    Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
  • Drawn gel-spun polyethylene yarns and process for drawing
    Patent number: 7081297
    Abstract: 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: Grant
    Filed: July 11, 2005
    Date of Patent: July 25, 2006
    Assignee: Honeywell International Inc.
    Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
  • Drawn gel-spun polyethylene yarns and process for drawing
    Patent number: 7078097
    Abstract: 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: Grant
    Filed: August 17, 2005
    Date of Patent: July 18, 2006
    Assignee: Honeywell International Inc.
    Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou
  • Drawn gel-spun polyethylene yarns and process for drawing
    Patent number: 7078099
    Abstract: 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: Grant
    Filed: August 17, 2005
    Date of Patent: July 18, 2006
    Assignee: Honeywell International Inc.
    Inventors: Thomas Yiu-Tai Tam, Chok B. Tan, Charles R. Arnett, Jr., Qiang Zhou