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:
Nov. 15, 1983
Filed:
Sep. 14, 1981
Hans-Peter Keller, Oberdurnten, CH;
Max Bossard, Durnten, CH;
Loepfe Brothers Limited, Wetzikon, CH;
Abstract
An electronic device for monitoring the insertion or travel of the filling or weft thread on an air jet weaving machine or loom which comprises at least one air jet arranged at the picking side of the machine, and a lathe or sley beam with thereon fixed lamellae forming a reed. The device comprises a tactile weft thread travel sensor arranged at the weaving machine upstream of said air jet, a start pulse generator controlled by the weaving machine, an optoelectrical sensor located near the end of the reed adjacent the weft receiving means, and electronic circuitry controlled by said start pulse generator and optoelectrical sensor for producing an activating signal defining the time interval during which the weft thread travel is monitored.