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. 22, 1980
Filed:
Sep. 03, 1976
Applicant:
Inventor:
Kurt Aeppli, Uster, CH;
Assignee:
Zellweger Uster, Ltd., , CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
356430 ; 66163 ; 250572 ;
Abstract
In a method and apparatus for the detection of yarn defects, which may be effected in combination with a standard yarn clearer or independently thereof, the cross section of the yarn is continuously scanned and an electrical signal is generated representing not only the cross section and length of yarn defects, but also their frequency or periodicity, and these features are used as the criterion for generating a defect signal as an indication of detection of regular or irregular sequences of thick places in the yarn.