Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Reexamination Certificate
2006-08-08
2006-08-08
Edwards, N. (Department: 1774)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
C428S398000, C428S092000
Reexamination Certificate
active
07087303
ABSTRACT:
A bulked continuous filament with a three-sided exterior configuration is characterized in that each side has a smoothly curved contour extending between a first and a second rounded tip with an inwardly extending depressed region being disposed adjacent to each tip. Generally, the filament has an exterior modification ratio in the range from about 1.4 to about 2.5, and a tip ratio in the range from about 2.0 to about 10.0. The filament generally delta-shaped void with three major apices extending centrally and axially therethrough. Each side of the void is convexly shaped and formed from a pair of facets that meet to define minor apices. The void is oriented such that each major apex extends toward the approximate midpoint of one side of the exterior of the filament and each minor apex extends toward a tip of an exterior side. The distance (RM) from the geometric center of the void to each major apex and the distance (Rm) from the geometric center of the void to each minor apex defines an apex ratio (RM/Rm) in the range from about 1.0 to about 1.55. The void occupies from about one percent (1%) to about twenty-five percent (25%) of the cross sectional area of the filament.
REFERENCES:
patent: 3329553 (1967-07-01), Sima et al.
patent: 3525134 (1970-08-01), Coon
patent: 4492731 (1985-01-01), Bankar et al.
patent: 5108838 (1992-04-01), Tung
patent: 5168143 (1992-12-01), Kobsa et al.
patent: 5176926 (1993-01-01), Tung
patent: 5380592 (1995-01-01), Tung
patent: 5523155 (1996-06-01), Lin et al.
patent: 6048615 (2000-04-01), Lin
patent: 6589653 (2003-07-01), Lin
patent: 6600375 (2003-07-01), Morse et al.
patent: 6675450 (2004-01-01), Fetter et al.
patent: 6677903 (2004-01-01), Wang
patent: 6855425 (2005-02-01), Lancaster
patent: 6939608 (2005-09-01), Tung
Chen Shaorong
Edwards N.
Invista North America S.A R. L.
Krukiel Charles E.
LandOfFree
Bulked continuous filament having a three-sided exterior... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bulked continuous filament having a three-sided exterior..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bulked continuous filament having a three-sided exterior... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3621060