Harry David Martin

US Patent:

6672674, Jan 6, 2004

Filed:

Mar 4, 2003

Appl. No.:

10/379230

Inventors:

Ulrich Paschedag - Ascheberg-Herbern, DE
Harry Martin - Cranberry Township PA

Assignee:

DBT GmbH

International Classification:

E21C 4116

US Classification:

299 13, 299 18, 299 19

Abstract:

The extraction machine for underground ore extraction operations, with extraction of the extraction product by blasting has an advancing support equipment ( ) and a face conveyor ( ) coupled to it as well as at least one boring device ( ) for the production of shot holes ( ) and a loading device ( ) to supply the face conveyor ( ) with the blast rock loosened by blasting, whereby the boring device ( ) and the loading device ( ) are assigned to a common boring and loading machine ( ), which can be driven along the face conveyor ( ) at right angles to the direction of mining in the direction towards the rock face ( ) running parallel to the direction of mining, or away from this.

US Patent:

6848748, Feb 1, 2005

Filed:

Sep 20, 2001

Appl. No.:

09/957131

Inventors:

Ulrich Paschedag - Ascheberg-Herbern, DE
Harry Martin - Cranberry Township PA, US

Assignee:

DBT GmbH - Lunen

International Classification:

E21C 3518

US Classification:

299 33, 299 43, 299 95, 299 19

Abstract:

The extraction machine for underground ore extraction operations, with extraction of the extraction product by blasting has an advancing support equipment () and a face conveyor () coupled to it as well as at least one boring device () for the production of shot holes () and a loading device () to supply the face conveyor () with the blast rock loosened by blasting, whereby the boring device () and the loading device () are assigned to a common boring and loading machine (), which can be driven along the face conveyor () at right angles to the direction of mining in the direction towards the rock face () running parallel to the direction of mining, or away from this.

US Patent:

7350874, Apr 1, 2008

Filed:

Jun 18, 2004

Appl. No.:

10/561674

Inventors:

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

Assignee:

DBT GmbH
Codelco

International Classification:

E21C 41/22

US Classification:

299 18, 299 19

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.

US Patent:

7779984, Aug 24, 2010

Filed:

Aug 24, 2006

Appl. No.:

11/991367

Inventors:

Harry Martin - Cranberry Township PA, US
Juan Delgado - Eagle Pass TX, US
Victor Raúl Encina Montenegro - Providencia/Santiago, CL
Pablo Antonio Letelier Parga - Providencia/Santiago, CL
Jaime Hernán Carreño Valdés - El Salvador, CL
Fernando Arturo Geister Bühlmann - Buin-Region Metropolitana, CL
Detlef Hahn - Lunen, DE
Jens Steinberg - Hattingen, DE
Hans Peter Lanz - Santiago, CL
Frank Herrmann - Chemnitz, DE
Hans Tümpner - Aue, DE
Reinhold Brüggemann - Dortmund, DE
Ulrich Pasehedus, legal representative - Ascheberg, DE

Assignee:

Bucyrus DBT Europe GmbH - Lünen
Corporacion Nacional Del Cobre De Chile (Codelco) - Santiago

International Classification:

B65G 65/14

US Classification:

1983081, 198309, 1984632, 299 18

Abstract:

An arrangement for extracting extraction products in caving in which the extraction product is extracted downwards through an extraction funnel into an extraction path and from this is transferred onto an extraction conveyor arranged in a conveyor path, in which arrangement the extraction path extends transversely between the conveyor path and an auxiliary path parallel to this, a loading ramp is arranged in the extraction path which forms a ramp surface orientated transversely to the conveying direction of the extraction conveyor and inclined towards it. The extraction path is provided with a rail guidance attached to the bottom and extending in the area between the auxiliary path and the conveying path, on which the loading ramp is guided and along which it can be moved by a displacement drive () in the direction of the conveyor path and in the opposite direction.