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:
Feb. 17, 1976

Filed:

Sep. 11, 1974
Applicant:
Inventor:

Robert Lees, Chester, VA (US);

Assignee:

Allied Chemical Corporation, New York, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29F / ;
U.S. Cl.
CPC ...
425198 ; 425199 ; 4253822 ; 425464 ;
Abstract

A spin pack assembly for the extrusion of synthetic filaments. Novel features are the polymer flow channels of the breaker plate and spinneret plate which comprise a capillary with open ends, the entrance ends of the breaker plate and spinneret plate and the exit end of the breaker plate defining, respectively, enlarged inlets and outlets, the walls of which intersect with adjacent walls to form a closed, interlocking network of ridges on the top surfaces of the breaker plate and spinneret plate and on the bottom surface of the breaker plate, so as to eliminate areas of low or zero velocity flow of polymer and to reduce pressure differences in polymer in the breaker plate-spinneret plate area.


Find Patent Forward Citations

Lees, Robert. (1976). Spin pack assembly (U.S. Patent No. 3938925). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3938925

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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