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. 07, 2004
Filed:
Jun. 03, 2002
Herbert Grasshoff, Moers, DE;
Bayer Aktiengesellschaft, Leverkusen, DE;
Abstract
A method and an apparatus for the pneumatic conveying of fine bulk material, in particular glass fibers. The apparatus includes (i) a pneumatic conveying pipe having an upstream first portion, a downstream second portion, and a discharge point located further downstream from second portion; (ii) a charging container that is in reversibly closeable communication with a charging point of pneumatic conveying pipe, charging point being located further upstream from first portion; (iii) a suction conveying device which is in reversibly closeable gaseous communication with a suction point located between first and second portions of pneumatic conveying pipe; (iv) a pressure conveying device that is in reversibly closeable gaseous communication with a portion of pneumatic conveying pipe at a point that is further upstream from charging point; (v) a conveying supplementary line having a closed end or a reversibly closeable end, pressure conveying device being in reversibly closeable gaseous communication therewith; and a plurality of shut-off devices providing reversibly closeable gaseous communication from conveying gas supplementary line into pneumatic conveying pipe.