Patent · US Expired

Pneumatic pressing system for a drafting frame of a spinning machine and method of operating same

US5873230A · kind A · utility

4Cited by

4References

16Claims

0Family size

Assignee

Zinser Textilmaschinen GmbH · DE

Inventors

Holger Wussmann · Eislingen/Fils, DE
Reinhold Weber · Biberach an der Riß, DE
Ernst Halder · Renningen, DE

Key dates

Filing date	Dec 12, 1997
Grant date	Feb 23, 1999
Priority date	—
Expiry date	Dec 12, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG01M3/2815
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In the pneumatic pressing of textile strands in a drafting frame the pressure in the pressure line is monitored by a pressure sensor and/or a flowmeter and used to control a value between the pressure source and that pressure line. According to the invention a disturbance signal is outputted when the pressure in the line drops below a threshold, the control signal for the valve exceeds a threshold, the displacement of the value member exceeds a certain level and the flow rate exceeds a value so as to indicate leakage beyond a tolerance level.

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