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:
Sep. 01, 1992
Filed:
Jun. 11, 1990
Jurg Faas, Dinhard, CH;
Christoph Staheli, Frauenfeld, CH;
Robert Demuth, Nurensdorf, CH;
Robert Moser, Winterthur, CH;
Maschinenfabrik Rieter AG, Winterthur, CH;
Abstract
A method of operating a pneumatic transport system in a process line of a spinning mill, wherein fiber flocks are transported through ducts by means fo airflows generated by fans and these airflows can be influenced by units such as fans, adjustable flats, leakage air openings and induction boxes. In critical regions the respectively prevailing static pressure is measured by means of pressure sensors and, in so far as this pressure lies outside of a predetermined desired range a correction is first made at one of the units which contributes to determining this pressure in the sense of changing the pressure into the desired range or in the direction towards the desired range. The effect of this change in other critical regions effected thereby is then determined with reference to the pressure measured there and a change is subsequently effected of a further unit responsible for the pressure in these regions. The above process steps are repeated in the sense of an iterative adaptation to the desired ranges, i.e. until the measured pressures lie in the respectively provided desired ranges.