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:
Sep. 19, 1989
Filed:
Dec. 23, 1987
Applicant:
Inventors:
Ronald V Repetti, Guilford, CT (US);
Stephen Troy, Stamford, CT (US);
Assignee:
Cuno, Inc., Meriden, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; D01D / ;
U.S. Cl.
CPC ...
264 41 ; 21050038 ; 2642091 ; 264211 ; 26421116 ; 264558 ; 264561 ; 264562 ;
Abstract
A microporous nylon hollow fiber is prepared by extruding a nylon spinning solution through an annular slit of an orifice into a quench liquid while simultaneously introducing a core liquid into the inside hollow portion of the extruded spinning solution where the weighted densities of the spinning solution, quench liquid and the core liquid are regulated such that the average of the density of the core liquid and the spinning solution is about equal to the density of the quench liquid.