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:
Apr. 01, 2008
Filed:
Jun. 18, 2004
Reinhold Brüggemann, Dortmund, DE;
Detlef Hahn, Lünen, DE;
Frank Fischer, Lünen, DE;
Jochen Hammel, Bochum, DE;
Jörg Wirtz, Hattingen, DE;
Norbert Katthöfer, Lünen, DE;
Frank Herrmann, Chemnitz, DE;
Hans Tümpner, Aue, DE;
Harry Martin, Cranberry Township, PA (US);
Juan Delgado, Eagle Pass, TX (US);
Victor Raul Encina Montenegro, Providencia/Santiago, CL;
Pablo Antonio Letelier Parga, Providencia/Santiago, CL;
Jaime Hernan Carreno Valdés, III Region, CL;
Fernando Arturo Geister Bühlmann, Buin-Region Metropolitana, CL;
Reinhold Brüggemann, Dortmund, DE;
Detlef Hahn, Lünen, DE;
Frank Fischer, Lünen, DE;
Jochen Hammel, Bochum, DE;
Jörg Wirtz, Hattingen, DE;
Norbert Katthöfer, Lünen, DE;
Frank Herrmann, Chemnitz, DE;
Hans Tümpner, Aue, DE;
Harry Martin, Cranberry Township, PA (US);
Juan Delgado, Eagle Pass, TX (US);
Victor Raul Encina Montenegro, Providencia/Santiago, CL;
Pablo Antonio Letelier Parga, Providencia/Santiago, CL;
Jaime Hernan Carreno Valdés, III Region, CL;
Fernando Arturo Geister Bühlmann, Buin-Region Metropolitana, CL;
Abstract
In the method according to the invention and the arrangement or according to the invention for extracting extraction products in underground mining operations using the caving method, the extraction products () collapsing in an upper gate area () are extracted via at least one extraction funnel () or the like into an extraction path () driven below the gate and are transported away therein by means of an extraction conveyor (). According to the invention the extraction funnels () are arranged laterally beside the extraction conveyor () and lead at their lower end into a ramp surface () inclined towards the extraction conveyor, the extraction products extracted from the gate through the extraction funnels being transported slidingly over the inclined ramp surface to the extraction conveyor. The inclined ramp surface is preferably formed by a loading ramp () which is so arranged in an extraction chamber () branching off laterally from the extraction path that its one end (), disposed higher, is located below the extraction funnel and its other end (), disposed lower, forms an outlet () towards the extraction conveyor.