James E Rudolph
Electrician in Middletown, DE
License number
Delaware TH-0002481
Issued Date
May 1, 2006
Expiration Date
May 1, 2007
Category
Electrical Examiners
Type
Homeowner's Permit
Address
Address
2
Middletown, DE 19709
Professional information
Breathable Non-Wettable Melt-Blown Non-Woven Materials And Products Employing The Same
US Patent:
2005011, Jun 2, 2005
Filed:
Jan 2, 2003
Appl. No.:
10/500644
Inventors:
Ahamad Khan - Cockeysville MD, US
James Rudolph - Middletown DE, US
Richard McDonogh - San Diego CA, US
I-Fan Wang - San Diego CA, US
James Rudolph - Middletown DE, US
Richard McDonogh - San Diego CA, US
I-Fan Wang - San Diego CA, US
International Classification:
D04H001/56, D04H001/00
US Classification:
442400000, 442334000
Abstract:
Breathable non-wettable non-woven materials include a mass of melt-blown, non-woven fibers formed of a terpolymer of tetrafluroethylene, hexafluoropropylene and vinylidene fluoride monomers. Most preferably, the materials of the present invention are in the form of fabric structures which can be processed to form a variety of products for numerous end use applications, such as for garments, bandages, barrier vents, filter media and the like. In especially preferred form, the melt-blown non-woven fibers are comprised of a THV terpolymer formed of between about 30 to about 70 wt. % of teirafluoroethylene monomer, between about 10 to about 20 wt. % of hexafluoropropylene monomer, and between about 20 to about 65 wt. % vinylidene fluoride monomer.
Hydrophobic Membrane Materials For Filter Venting Applications
US Patent:
2003019, Oct 16, 2003
Filed:
Apr 12, 2002
Appl. No.:
10/123074
Inventors:
I-fan Wang - San Diego CA, US
Richard McDonogh - San Diego CA, US
James Rudolph - Middletown DE, US
Richard McDonogh - San Diego CA, US
James Rudolph - Middletown DE, US
International Classification:
B01D063/00, B01D067/00
US Classification:
210/500210, 210/483000, 210/321750, 210/321840
Abstract:
The present invention relates to filtration media having both hydrophobic (water-repellent) properties. The filtration media are produced using a fluorothermoplastic material, such as a terpolymer of tetrafluoroethylene, vinylidene fluoride, and hexafluoropropylene. The invention also relates to methods of preparing such filtration media using casting solution phase inversion.