James E. Van Trump
Electrician in Wilmington, DE

6692687, Feb 17, 2004

Jan 11, 2001

09/758309

Jing Chung Chang - Columbia SC
Joseph V. Kurian - Newark DE
Young D. Nguyen - Singapore SGX, SG
James E. Van Trump - Wilmington DE
George Vassilatos - Wilmington DE

E. I. du Pont de Nemours and Company - Wilmington DE

D01D 5098

264555, 264168, 26417214, 26417215, 26417217, 2642105, 2642108, 26421112, 26421114, 26421117, 2642356

Highly crimped, fully drawn bicomponent fibers, prepared by melt-spinning, followed by gas-flow quenching, heat treatment and high speed windup, are provided, as are fine-decitex and highly uniform polyester bicomponent fibers.

6877197, Apr 12, 2005

Dec 8, 2003

10/730372

James E. Van Trump - Wilmington DE, US
Carmen A. Covelli - Chadds Ford PA, US
Jamie Lee Gossler - Wilmington DE, US
Clive Mapp - Gloucester, GB
David J. Marfell - Moreton-in-Marsh, GB

Invista North America S.A.R.L. - Wilmington DE

D02G001/00, D01D005/22

28247, 28220, 28 28, 28281, 264168

The invention provides a process for treating a polyester fiber comprising the steps of providing a bicomponent fiber comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate) which has been heat-treated at a first temperature and cooled to lower than about 70° C. and has an initial crimp contraction value and a developed crimp contraction value, applying tension to the fiber of about 0. 001 to 0. 088 dN/tex, heat-treating the fiber at a second heat-treating temperature no lower than about 75° C. and no higher than the first heat-treating temperature, cooling the fiber to lower than the second heat-treating temperature, and releasing the tension from the fiber to give a fiber having a reduced crimp contraction value. The invention also provides a bicomponent fiber comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate) having a reduced crimp contraction value of about 6% to 15%.

6974628, Dec 13, 2005

Dec 7, 2004

11/006253

James E. Van Trump - Wilmington DE, US
Carmen A. Covelli - Chadds Ford PA, US
Jamie Lee Gossler - Wilmington DE, US
David J. Marfell - Moreton-In-Marsh, GB
Clive Mapp - Gloucester, GB

Invista North America S.a r.l. - Wilmington DE

D01F008/00

428370, 428373, 428374

The invention provides a process for treating a polyester fiber comprising the steps of providing a bicomponent fiber comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate) which has been heat-treated at a first temperature and cooled to lower than about 70° C. and has an initial crimp contraction value and a developed crimp contraction value, applying tension to the fiber of about 0. 001 to 0. 088 dN/tex, heat-treating the fiber at a second heat-treating temperature no lower than about 75° C. and no higher than the first heat-treating temperature, cooling the fiber to lower than the second heat-treating temperature, and releasing the tension from the fiber to give a fiber having a reduced crimp contraction value. The invention also provides a bicomponent fiber comprising poly(ethylene terephthalate) and poly(trimethylene terephthalate) having a reduced crimp contraction value of about 6% to 15%.

5325301, Jun 28, 1994

Mar 27, 1992

7/860774

Warren F. Knoff - Richmond VA
Michael J. Merrill - New Castle DE
Barry Rubin - Glen Mills PA
Akhileswar G. Vaidyanathan - Hockessin DE
James E. Van Trump - Wilmington DE
Theresa A. Weston - Wilmington DE

E. I. Du Pont de Nemours and Company - Wilmington DE

G06F 1520

364552

The present invention relates broadly to a method of image analysis for analyzing the texture of a surface, and to a saxony-type carpet having a tightly tailored surface texture characterized by this method. The method employs a model based on a second order co-occurrence matrix model which calculates a set of textural parameters for image classification. This co-occurrence matrix model examines the statistics of the spatial relationship between gray levels in a homogeneously textured image with calculated textural features which represent measures such as homogeneity and contrast. The method of the present invention uses this model to construct a set of normalized textural parameters from the textural parameters and calculates a value for the normalized textural parameters from this set, where the normalized textural parameters are related to the physical properties of the surface, such as pile lay of a carpet. The method compares the value for each of the normalized textural parameters of an unknown sample to the value for each of the corresponding normalized textural parameters for a known, or goal, sample. In one embodiment, the method compares an unknown sample of a saxony-type carpet to a goal sample of a saxony-type carpet having a tightly tailored surface texture to determine whether the unknown sample is such a carpet.

4921900, May 1, 1990

Dec 14, 1988

7/284423

James E. Van Trump - Wilmington DE

E. I. Du Pont De Nemours and Company - Wilmington DE

C08L 7900

524744

The acidic crumb of poly(paraphenylene terephthalamide) formed from the reaction of terephthaloyl chloride with para-phenylene diamine in an N-alkyl-pyrrolidone with an alkali or alkaline earth metal salt, is dissolved in a defined mixture of a base, a solvent and co-solvent for use in the direct preparation of fibrous products.

7011885, Mar 14, 2006

Dec 2, 2004

11/001135

Jing Chung Chang - Columbia SC, US
Joseph V. Kurian - Newark DE, US
Young D. Nguyen - Charlottesville VA, US
James E. Van Trump - Wilmington DE, US
George Vassilatos - Wilmington DE, US

INVISTA North America S.à.r.l. - Wilmington DE

D01F 8/00, D01D 5/32, D01D 5/34

428370, 428373, 428374, 26417214, 26417215

Highly crimped, fully drawn bicomponent fibers, prepared by melt-spinning, followed by gas-flow quenching, heat treatment and high speed windup, are provided, as are fine-decitex and highly uniform polyester bicomponent fibers.

6841245, Jan 11, 2005

Dec 22, 2003

10/743976

Jing Chung Chang - Columbia SC, US
Joseph V. Kurian - Newark DE, US
Young D. Nguyen - Charlottesville VA, US
James E. Van Trump - Wilmington DE, US
George Vassilatos - Wilmington DE, US

Invista North America S.A.R.L. - Wilmington DE

D01F 800

428373, 428370, 428374

Highly crimped, fully drawn bicomponent fibers, prepared by melt-spinning, followed by gas-flow quenching, heat treatment and high speed windup, are provided, as are fine-decitex and highly uniform polyester bicomponent fibers.

7615173, Nov 10, 2009

Nov 21, 2003

10/719607

James Edmond Van Trump - Wilmington DE, US

D01D 5/22, D01D 5/32, D01D 5/34, D01F 8/14, D02G 1/00

264168, 26417214, 26417215, 26417217, 2642102, 26421117, 264234

The present invention is directed to a process for preparing bicomponent fibers by melt spinning two semi-crystalline polymers differing in crystallization rate.

5209877, May 11, 1993

Mar 19, 1992

7/854746

Arnold Frances - Wilmington DE
Lee J. Hesler - Richmond VA
James E. Van Trump - Wilmington DE
Rita M. Vasta - Vienna WV

E. I. Du Pont de Nemours and Company - Wilmington DE

B29B 900

264 9

A thickener for liquids is disclosed. The thickener consists of organic polymer fibrid particles with a very small size, a very high aspect ratio, and very low bulk density. The thickener is made by drying newly-coagulated fibrid particles in a way that results in high particulate surface area.

5741590, Apr 21, 1998

Sep 15, 1995

8/528962

Henry Kobsa - Greenville DE
Barry Rubin - Glen Mills PA
Stephen Marshall Shearer - Wilmington DE
James Edmond Van Trump - Wilmington DE
Walter P. Warren - Newark DE

E. I. du Pont de Nemours and Company - Wilmington DE

D06P 100, D06P 382, D06P 3854, D01F 814

428373

An iridescent effect is achieved in satin weave filling-faced fabric using sheath-core filaments wherein the core is dyed to a color that is different from that of the sheath.