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:
Apr. 24, 1979
Filed:
Jun. 05, 1978
Hermann Gasser, Zurich, CH;
Karl Curiger, Pfaffikon, CH;
Luwa AG, Zurich, CH;
Abstract
An apparatus for monitoring yarn travel at a multiple spindle spinning machine which is equipped with a suction device servicing at least one group of the spindles. In a collecting channel of the suction device there is arranged a probe which upon passage therepast of fiber flocks or the like delivers an electrical signal to an evaluation circuit equipped with a periodically resettable signal counter having pre-settable counter value and an alarm device. The alarm device can be switched-in by means of a further cumulative counter with a higher, pre-set counter value. This further cumulative counter is coupled by means of a logic circuit with the periodically resettable signal counter in such a manner that the cumulative counter is reset whenever there is missing once or twice a signal from the periodically resettable signal counter.