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:
Jul. 19, 1977
Filed:
Apr. 21, 1975
Applicant:
Inventors:
Hansruedi Stutz, Dietlikon, CH;
Hans Spani, Zurich, CH;
Assignee:
Aktiengesellschaft Gebruder Loepfe, Wetzikon, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ; D01H / ; D02J / ; G01L / ;
U.S. Cl.
CPC ...
242 / ; 28226 ; 73160 ; 83522 ;
Abstract
A circuit arrangement for monitoring the operation of an electronic yarn clearer on an automatic yarn winding machine and particularly for monitoring the operation of the output relays and yarn cutting device of the yarn clearer. Logic circuitry is provided for combining the output signals of the yarn clearer circuitry and produces control and/or alarm signals when the cutting device fails to sever the yarn upon appearance of a cutting pulse, i.e. when a yarn travel signal is permanently present during a predetermined time interval commencing with the start of said cutting pulse.