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.

Date of Patent:
Sep. 12, 2000

Filed:

Jul. 29, 1998
Applicant:
Inventors:

Bryan David Haynes, Cumming, GA (US);

Jark C Lau, Roswell, GA (US);

Chad Michael Freese, Neenah, WI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264237 ; 26421121 ; 425464 ;
Abstract

A method and apparatus for improved quenching of nonwoven filaments utilizing a turbulence inducing bar arrangement disposed in a stream of quenching gas between the quenching gas supply apparatus and the group of filaments being extruded. The bar arrangement increases the turbulence of the quenching gas so that the gas applied to the filament group has a turbulence intensity of at least about 5%. The turbulent quenching gas penetrates the interior of the filament bundle to provide more efficient removal of heat.


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