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:
Jan. 27, 2004
Filed:
May. 07, 2002
Gerd Pferdmenges, Jüchen, DE;
Robert Többen, Mönchengladbach, DE;
Trutzschler GmbH & Co. KG, Monchengladbach, DE;
Abstract
An apparatus for regulating fiber quantities to be supplied to a carding machine. The apparatus includes a duct in which the fiber material is pneumatically advanced; a feed mechanism to advance fiber material to the duct at a variable flow rate; a regulator connected to the feed mechanism for varying the flow rate; a pressure sensor disposed in the duct; an arrangement for generating first electric signals representing actual pressure values detected by the pressure sensor; an arrangement for differentiating the first signals over time to obtain second electric signals for correcting the first electric signals to obtain third electric signals representing corrected actual pressure values; and an arrangement for applying the third signals to the regulator for varying the flow rate of the fiber material, advanced by the feed mechanism, as a function of the signals.