Patent · US Expired

Spinning preparation machine

US6983516B2 · kind B2 · utility

2Cited by

9References

53Claims

0Family size

Assignee

Rieter Ingolstadt Spinnereimaschinenbau AG · DE

Inventors

Joachim Dammig · Ingolstadt, DE
Michael Ueding · Ingolstadt, DE
Chokri Cherif · Ingolstadt, DE

Key dates

Filing date	Apr 3, 2003
Grant date	Jan 10, 2006
Priority date	—
Expiry date	Jun 8, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/362
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Different improvements of a spinning preparation machine are proposed to measure the fiber sliver thickness or the fiber sliver cross-section of at least one fiber sliver by means of one or several microwave sensors. One improvement is characterized by compressing means and special mechanical guiding elements that can be installed before, after and/or in the microwave sensor. It is also proposed to install a pair of conveyor rollers after a microwave sensor that can be designed in particular as an input roller pair of the subsequent drafting equipment. Furthermore, proposals are made for the calibration of the (at least one) microwave sensor.

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