Patent · US Active

Device for detecting a selvage of a material web

US8789421B2 · kind B2 · utility

1Cited by

22References

14Claims

0Family size

Assignee

Texmag GmbH Vertriebsgesellschaft · CH

Inventors

Wolfgang Krauth · Achern, DE
Lars Zwerger · Augsburg, DE

Key dates

Filing date	Mar 23, 2011
Grant date	Jul 29, 2014
Priority date	—
Expiry date	Nov 21, 2032

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41F13/02
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device for detecting a selvage of a material web or the selvage position in one measuring direction. The device comprises at least one ultrasonic sensor, with the ultrasonic sensor comprising a transmitter element and a receiver element. The external contour of at least one of the transmitter elements and/or of the receiver elements comprises at least one arc segment side and at least one flattened side.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.