Herman H Forsten

US Patent:

7247585, Jul 24, 2007

Filed:

Nov 23, 2004

Appl. No.:

10/996897

Inventors:

Laurence N. Bascom - Amelia VA, US
Herman Hans Forsten - Williamsburg VA, US

Assignee:

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

International Classification:

B32B 27/12
B32B 27/04

US Classification:

442 2, 442 35, 442 36, 442 43, 442 46, 442 49, 442 50, 442 57, 442 58, 442136, 442164, 442169, 442352, 428920, 428921

Abstract:

This invention relates to a thin reinforced nonwoven fabric having ridges and grooves for fire blocking an article and articles containing such fabrics. When exposed to heat or flame, the fabric is capable of increasing to a thickness that is at least 1. 5 times its original thickness. The fabric comprises an open mesh scrim having a having crimped, heat-resistant organic fibers compressed thereon and held in a compressed state by a thermoplastic binder, on which is imparted a ridge and groove structure. When subjected to high heat or flame, the binder in the structure softens, releasing the restrained crimped fibers and any ridges and grooves and allowing the thickness of the fabric to increase.

US Patent:

7456120, Nov 25, 2008

Filed:

Sep 13, 2006

Appl. No.:

11/520370

Inventors:

Anil Kohli - Midlothian VA, US
Herman Hans Forsten - Williamsburg VA, US
Kurt Hans Wyss - Chavannes de Bogis, CH

Assignee:

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

International Classification:

D04H 1/00
D04H 13/00
D04H 3/00
D04H 5/00

US Classification:

442415, 428902, 428920, 428921, 442402, 442408, 442414

Abstract:

This invention relates to a bag filter having a tubular section, one closed end and one open end, the tubular section having a nonwoven felt comprising an intimate fiber blend of 50 to 80 parts by weight meta-aramid fiber and 20 to 50 parts by weight acrylic fiber, based on the total weight of meta-aramid and acrylic fibers in the felt, wherein the acrylic fiber has an equal or lower denier per filament than the meta-aramid fiber.

US Patent:

7485592, Feb 3, 2009

Filed:

Sep 13, 2006

Appl. No.:

11/520369

Inventors:

Anil Kohli - Midlothian VA, US
Herman Hans Forsten - Williamsburg VA, US
Kurt Hans Wyss - Chavannes De Borgis, CH

Assignee:

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

International Classification:

D04H 1/00
D04H 13/00
D04H 3/00
D04H 5/00

US Classification:

442415, 442402, 442408, 442414, 428902, 428920, 428921, 55361

Abstract:

This invention relates to a bag filter having a tubular section, one closed end and one open end, the tubular section having a nonwoven felt comprising an intimate fiber blend of 50 to 80 parts by weight polyphenylene sulfide fiber and 20 to 50 parts by weight acrylic fiber, based on the total weight of polyphenylene sulfide and acrylic fibers in the felt, wherein the acrylic fiber has an equal or lower denier per filament than the polyphenylene sulfide fiber.

US Patent:

20050023509, Feb 3, 2005

Filed:

Jul 29, 2003

Appl. No.:

10/630618

Inventors:

Laurence Bascom - Amelia VA, US
Herman Forsten - Williamsburg VA, US

International Classification:

C09K021/00

US Classification:

252608000

Abstract:

This invention relates to a single layer nonwoven fabric useful as a fireblocking component for mattresses, and a mattress or mattress set comprising the nonwoven fabric, and a process for fireblocking said mattress and mattress set; the nonwoven fabric comprising at least 0.5 ounces per square yard (17 grams per square meter) of a cellulose fiber that retains at least 10 percent of its fiber weight when heated in air to 700 C. at a rate of 20 degrees C. per minute, and at least 0.5 ounces per square yard (17 grams per square meter) of an organic fiber that retains 90 percent of its fiber weight when heated in air to 500 C. at a rate of 20 degrees C. per minute, the fabric having a basis weight having at least 2.5 ounces per square yard (85 grams per square meter), a density of at least 0.16 gram/cm, and an air permeability of 70 meters/min (225 ft/min) or less.

US Patent:

20050026528, Feb 3, 2005

Filed:

Jul 29, 2003

Appl. No.:

10/630081

Inventors:

Herman Forsten - Williamsburg VA, US
Warren Knoff - Richmond VA, US
William Younts - Fort Mill SC, US

International Classification:

D04H001/00
B27N009/00
A47C017/00
B32B005/24
B32B005/18
D04H013/00
D04H005/00
D04H003/00

US Classification:

442414000, 442370000, 442373000, 442416000, 005698000, 005954000, 428921000

Abstract:

This invention relates to a fabric composite for use in fire-blocking a mattress, a fire-blocked mattress set, and a process for fire-blocking mattresses; the fabric composite comprising, in order, (a) sacrificial outer ticking, (b) sacrificial cushioning material, and (c) fire-blocking fabric, the fire-blocking fabric being a single layer of nonwoven fabric comprising at least 0.5 ounces per square yard (17 grams per square meter) of a cellulose fiber that retains at least 10 percent of its fiber weight when heated in air to 700 C at a rate of 20 degrees C. per minute, and at least 0.5 ounces per square yard (17 grams per square meter) of a heat-resistant fiber. Mattress sets fire-blocked with this fabric composite have a peak heat release rate of less than 150 kilowatts within 30 minutes, preferably less that 150 kilowatts within 60 minutes, and a total heat release of less than 25 megajoules within 10 minutes when tested according to Technical Bulletin 603 of the State of California.

US Patent:

20050245163, Nov 3, 2005

Filed:

Apr 30, 2004

Appl. No.:

10/836447

Inventors:

Arun Aneja - Greenville NC, US
Laurence Bascom - Amelia VA, US
Herman Forsten - Williamsburg VA, US

International Classification:

D04H001/00
D04H003/00
D04H005/00
D04H013/00
B32B005/26
B32B005/06
B27N009/00

US Classification:

442414000, 442327000, 442381000, 442389000, 442415000, 428920000, 428921000

Abstract:

The present invention is directed to a fiber composition useful for fire blocking; a high loft web structure made from such fiber composition and a process for making such web structure; and a fire blocked article such as a mattress or furniture incorporating such high loft web structure and a method for fireblocking said articles; the fiber composition comprising (a) 1 to 20 parts by weight p-aramid fiber, (b) 5 to 30 parts by weight regenerated cellulose fiber containing silicic acid, and (c) 10 to 40 parts by weight modacrylic fiber, (d) 10 to 60 parts by weight polyester fiber, (e) up to 20 parts by weight binder material wherein the total of (a), (b), (c), (d) and (e) is on a basis of 100 parts by weight.

US Patent:

20050245164, Nov 3, 2005

Filed:

Apr 30, 2004

Appl. No.:

10/836662

Inventors:

Arun Aneja - Greenville NC, US
Laurence Bascom - Amelia VA, US
Herman Forsten - Williamsburg VA, US

International Classification:

D03D015/00
D03D025/00
D04H001/00
D04H003/00
D04H005/00
D04H013/00
D02G003/00
B32B005/26
B32B005/06
B27N009/00

US Classification:

442414000, 442327000, 442381000, 442389000, 442415000, 428920000, 428921000

Abstract:

The present invention is directed to a fiber composition useful for fire blocking; a high loft web structure made from such fiber composition and a process for making such web structure; and a fire blocked article such as a mattress or furniture incorporating such high loft web structure and a method for fireblocking said articles; the fiber composition comprising (a) 1 to 20 parts by weight p-aramid fibers, (b) 20 to 60 parts by weight regenerated cellulose fibers containing silicic acid, and (c) 10 to 60 parts by weight polyester fibers, (d) up to 20 parts by weight binder material wherein the total of (a), (b), (c) and (d) is on a basis of 100 parts by weight.

US Patent:

20060042741, Mar 2, 2006

Filed:

Oct 19, 2005

Appl. No.:

11/256453

Inventors:

Arun Aneja - Greenville NC, US
Laurence Bascom - Amelia VA, US
Herman Forsten - Williamsburg VA, US

International Classification:

B27N 3/00

US Classification:

156062200

Abstract:

The present invention is directed to a fiber composition useful for fire blocking; a high loft web structure made from such fiber composition and a process for making such web structure; and a fire blocked article such as a mattress or furniture incorporating such high loft web structure and a method for fireblocking said articles; the fiber composition comprising (a) 1 to 20 parts by weight p-aramid fibers, (b) 20 to 60 parts by weight regenerated cellulose fibers containing silicic acid, and (c) 10 to 60 parts by weight polyester fibers, (d) up to 20 parts by weight binder material wherein the total of (a), (b), (c) and (d) is on a basis of 100 parts by weight.

Address:

113 Mid Ocean, Williamsburg, VA 23188

Phone:

7575648935

VIN:

2A8HR54P18R664069

Make:

Chrysler

Model:

Town & Country

Year:

2008