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. 11, 2001
Filed:
Aug. 21, 2000
Christian Müller, Wallenwil, CH;
Jürg Faas, Andelfingen, CH;
Beat Näf, Jona, CH;
Christian Grieshammer, Winterthur, CH;
Theodore Götz Gresser, Winterthur, CH;
Maschinenfabrik Rieter AG, Winterthur, CH;
Abstract
The present invention concerns a drafting system (,) with a drive (M,) provided with a regulating device (M,) for levelling out mass variations in a fiber mass (,) supplied to the drafting system by a supply source (,). The mass variations are detected by at least one measuring sensor (,) coordinated to the drafting system and the corresponding signals are transmitted to a control unit (S). A further device (,) may be coordinated to the drafting system (,) which is suitable for detecting differences between the delivery speed of the supply source (,) and the intake speed of the drafting system (,) and apply it for influencing the base rotational speed of the drafting system or to detect long term mass variations from a predetermined desired value in which arrangement these mass deviations detected are applied for influencing the base rotational speed of the drafting system.