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:
Oct. 13, 1981
Filed:
Dec. 10, 1979
Applicant:
Inventor:
Hansruedi Stutz, Dietlikon, CH;
Assignee:
Gebruder Loepfe AG, Zurich, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01B / ;
U.S. Cl.
CPC ...
356386 ; 250559 ; 356429 ;
Abstract
A device for measuring the instantaneous value of the diameter or other transverse dimension of a traveling yarn comprises a linear array of photoelectric sensors and an electronic measuring device for scanning the sensors and digitally processing the electrical scanning signals in serial form. The ground signal indicative of the condition 'no yarn present' is eliminated by means for intermediately storing the scanning signal, means for delaying the latter and storing the delayed signal, and subtracting the stored undelayed signal from the delayed signal such as to eliminate the ground signal and to furnish a pure yarn signal representative of the yarn diameter.