The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 1998
Filed:
Jun. 06, 1997
Michael Allen Bryner, Midlothian, VA (US);
Don M Coates, Santa Fe, NM (US);
Michael Charles Davis, Richmond, VA (US);
Tom Edward Estep, Chesterfield, VA (US);
Ralph A Franke, Richmond, VA (US);
Larry Ray Marshall, Chesterfield, VA (US);
Subhra K Nath, Midlothian, VA (US);
Charles Wesley Starke, Sr, Richmond, VA (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A flash spin pack for a flash-spinning apparatus is provided in which the pack includes a spin mixture inlet, that communicates with a spin mixture passage, that discharges through a spinning orifice that opens into a slot defined by two opposing faces of the body of the spin pack. The slot is 0.25 mm to 7 mm wide proximate the spinning orifice outlet, 0.25 mm to 10 mm at the slot outlet, and the distance from the orifice outlet to the slot outlet is 1.5 mm to 40 mm. The spin pack may have five or more spinning orifices that each discharge into a different slot so configured.