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:
Jan. 28, 1992
Filed:
Nov. 09, 1989
Applicant:
Inventors:
Richard S Andrews, III, Greenwood, DE (US);
Nitin J Champaneria, Seaford, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ; D02G / ;
U.S. Cl.
CPC ...
364470 ; 28220 ; 57264 ; 364164 ;
Abstract
An apparatus that includes speed, temperature, tension, position and pressure sensors on a BCF yarn spinning machine in connection with a digital computer incorporates models in the computer which predict yarn bulk and dyeability properties as a function of sensor inputs: hot roll temperature, bulking jet temperature, ladder guide tension, relative viscosity, draw zone tension, Hall-effect Watt-meter measuring the power consumption of the spinning pump, finish roll speed, takeup roll speed, wind up speed and wind up tension.