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:
Jun. 23, 1987
Filed:
Dec. 31, 1984
Applicant:
Inventors:
Francesco D'Andolfo, Cesano Maderno, IT;
Fulvio Grampa, Busto Arsizio, IT;
Giuseppe Mazzacchera, Busto Arsizio, IT;
Aurelio Rolando, Milan, IT;
Assignee:
Snia Fibre S.p.A., Cesano Maderno, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D04G / ; D06B / ;
U.S. Cl.
CPC ...
264103 ; 2642115 ; 264500 ; 264571 ; 57350 ; 57908 ;
Abstract
A method of high-speed spinning polyamidic fiber, comprising the steps of extruding the polymer in the molten state, cooling the filaments by blowing, and finishing, which is performed in two stages, one upstream and the other downstream of the interlacing device. The latter device includes a containing enclosure wherein the interlacing nozzle and at least two pairs of yarn thread guides are accommodated. Fibers obtained with the method have 5 to 29 knots per meter.