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:
May. 21, 1991
Filed:
Nov. 21, 1989
Applicant:
Inventors:
Makoto Uramoto, Uji, JP;
Hideji Sakata, Nagaokakyo, JP;
Assignee:
Murata Kikai Kabushiki Kaisha, Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
250561 ; 57 81 ;
Abstract
A device for detecting a doubled yarn includes a detecting device having photoelectric sensors disposed in a plane perpendicular to a running path of a yarn provided in a housing such that beams of light projected from light projecting elements may reach light receiving elements in a perpendicularly intersecting relationship to each other. A calculating device totals up the sensed amounts individually detected by the light receiving elements of the photoelectric sensors and comparing the added up value with a reference value to detect a break of one or more of the single yarns of the doubled yarn.