Patents Assigned to Bochumer Eisenhuette Heintzmann GmbH & Co.
  • Patent number: 9010061
    Abstract: A lattice girder for support of a tunnel structure includes coupling elements arranged on ends of the lattice girder. Each coupling element has two sheet-metal strips having each an end formed with a loop. Extending between the coupling elements in a longitudinal direction of the lattice girder are two lower bars and an upper bar arranged to define corners of a triangle in cross section. A framework made of single braces connects the lower bars with the upper bar. Connectors are received in the loops of the sheet-metal strips.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: April 21, 2015
    Assignee: Bochumer Eisenhütte Heintzmann GmbH & Co. KG
    Inventor: Rudi Podjadtke
  • Patent number: 8979434
    Abstract: A tubbing lining for a tunnel or shaft is formed from tubbing rings having annular end surfaces, with successively tubbing rings are aligned with each other at annular end surfaces forming an annular joint. Each tubbing ring is composed of successive circumferentially arranged tubbing segments which are butt-joined. A deformable flexible element having an outer cross-sectional contour is arranged in at least one butt joint, with the cross-sectional contour parallel to the butt joint matching outer contours of the end faces such that the flexible element completely covers at least one abutting end face. The tubbing segments in conjunction with the flexible element form a prefabricated element formed of a steel reinforcing framework encased in concrete to which the flexible element is connected in a force-locked manner.
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: March 17, 2015
    Assignee: Bochumer Eisenhütte Heintzmann GmbH & Co. KG
    Inventor: Rudi Podjadtke
  • Publication number: 20140069047
    Abstract: A lattice girder for support of a tunnel structure includes coupling elements arranged on ends of the lattice girder. Each coupling element has two sheet-metal strips having each an end formed with a loop. Extending between the coupling elements in a longitudinal direction of the lattice girder are two lower bars and an upper bar arranged to define corners of a triangle in cross section. A framework made of single braces connects the lower bars with the upper bar. Connectors are received in the loops of the sheet-metal strips.
    Type: Application
    Filed: September 3, 2013
    Publication date: March 13, 2014
    Applicant: Bochumer Eisenhütte Heintzmann GmbH & Co. KG
    Inventor: Rudi Podjadtke
  • Publication number: 20120237300
    Abstract: A tubbing lining for a tunnel or shaft is formed from tubbing rings having annular end surfaces, with successively tubbing rings are aligned with each other at annular end surfaces forming an annular joint. Each tubbing ring is composed of successive circumferentially arranged tubbing segments which are butt-joined. A deformable flexible element having an outer cross-sectional contour is arranged in at least one butt joint, with the cross-sectional contour parallel to the butt joint matching outer contours of the end faces such that the flexible element completely covers at least one abutting end face. The tubbing segments in conjunction with the flexible element form a prefabricated element formed of a steel reinforcing framework encased in concrete to which the flexible element is connected in a force-locked manner.
    Type: Application
    Filed: December 1, 2010
    Publication date: September 20, 2012
    Applicant: Bochumer Eisenhütte Heintzmann GmbH & Co. KG
    Inventor: Rudi Podjadtke
  • Patent number: 4657443
    Abstract: An arrangement for supervising and controlling synchronous displacement of respective pistons of two cylinder-and-piston units, especially of an advancement and a roof cap displacement unit of a roof support assembly for use in underground mining, comprises first and second conduit systems each having two branches each connected with one of the piston and annular spaces of a different one of the units; a switching valve interposed between pressure and a return conduits and the first and second conduit systems; and first and second shut-off valves respectively interposed in those of the branches of the first and second conduit systems which lead to the piston spaces.
    Type: Grant
    Filed: March 11, 1986
    Date of Patent: April 14, 1987
    Assignee: Bochumer Eisenhuette Heintzmann GmbH & Co.
    Inventor: Gunter Blumenthal
  • Patent number: 4630973
    Abstract: A peripherally flexible arch for propping rock structure for mining tracks, tunnels or the like is comprised of a plurality of partially overlapped elongated segments, each of which has an end portion extended toward the rock structure, a bottom portion opposite to the end portion, and a lateral flange offset from the end portion laterally and in the direction toward the bottom portion. Clamping devices are arranged at the ends of the overlapping regions of the segments to clamp the segments to each other. The end portion of each lower segment is inserted into a groove formed between the end portion and the flange portion of each upper segment at the side of this segment facing away from the rock structure. Each clamping device has a hook engaged in a groove formed between the end portion and the flange of the upper segment at the side of this segment facing toward the rock structure.
    Type: Grant
    Filed: June 4, 1984
    Date of Patent: December 23, 1986
    Assignee: Bochumer Eisenhuette Heintzmann GmbH & Co. KG
    Inventors: Peter Heintzmann, Manfred Koppers, Karlheinz Bohnes, Lothar Domanski
  • Patent number: 4610424
    Abstract: A shut-off valve has a sealing cone which in a closed position of the valve abuts against a conical sealing seat and is formed as a part of a cylindrical throttling piston, a sealing surface of the sealing seat cooperates at its one end with a cylindrical receiving opening for the throttling piston, and the outer diameter of the throttling piston is selected with respect to the inner diameter of the receiving opening so that a throttling gap is formed between the receiving opening and the the throttling piston.
    Type: Grant
    Filed: November 26, 1984
    Date of Patent: September 9, 1986
    Assignee: Bochumer Eisenhuette Heintzmann GmbH & Co Kg
    Inventors: Manfred Koppers, Karlheinz Bohnes, Kuno Guse, Friedel Amling
  • Patent number: 4602896
    Abstract: A clamping device for connecting a number of shaped, elongated, flanged through sections of a support structure to each other includes an upper stirrup, the flanges of which are supported on the flanges of the upper through section, a lower stirrup positioned to support the flanges of the lower through section, and clamping bolts extended through the openings in the flanges of the stirrups and the through sections and tightened with nuts. The head of each bolt has supporting projections provided with convexly curved portions which are engaged in the flanges of the upper stirrup in a form-locking fashion.
    Type: Grant
    Filed: August 16, 1985
    Date of Patent: July 29, 1986
    Assignee: Bochumer Eisenhuette Heintzmann GmbH & Co. KG
    Inventors: Karlheinz Bohnes, Lothar Domanski, Manfred Koppers, Werner Mennekes, Dieter Moebus, Rudolf Turowski
  • Patent number: 4576524
    Abstract: A rock anchoring arrangement for use in tunnel and mine constructions comprises an elongated anchoring rod insertable in a bore formed in a rock formation, and a supporting plate arranged in contact with the rock formation at the open end of the bore. The anchoring rod includes a leading end portion fixable at the bottom of the bore, a trailing end portion fixable at the open end of the bore, and a smooth intermediate portion of a cross-sectional area smaller than those of the trailing end portion and the leading end portion. The anchoring rod is fixable by an adhesive within the bore at the leading end portion and at the trailing end portion whereas the intermediate portion is surrounded by an adhesive-repellent material to prevent the sticking thereof to the adhesive.
    Type: Grant
    Filed: April 11, 1984
    Date of Patent: March 18, 1986
    Assignee: Bochumer Eisenhuette Heintzmann GmbH & Co. KG
    Inventors: Peter Heintzmann, Manfred Koppers, Karlheinz Bohnes, Gerhard Hecken
  • Patent number: 4465404
    Abstract: A wall element for an underground gallery has a W-shaped member which is symmetrical relative to its y-axis and has an axis of gravity coinciding with its x-axis and lying at approximately the center of its side, wherein the thickness of its lateral flange portions, base portions and connecting web portions are selected so that, in relation to used weight per meter, the W-shaped member has a maximum possible moment of resistance relative to the x-axis and a maximum possible bending load capacity in the plastic deformation range, and the W-shaped member has such a profile and such thicknesses of these portions that it has at least approximately equal bending load capacities in the plastic deformation region in two opposite directions along the y-axis.
    Type: Grant
    Filed: July 9, 1982
    Date of Patent: August 14, 1984
    Assignee: Bochumer Eisenhuette Heintzmann GmbH & Co KG
    Inventors: Peter Heintzmann, Manfred Koppers, Karlheinz Bohnes, Lothar Domanski
  • Patent number: 4352602
    Abstract: A roof support for a mine gallery which extends at a relatively large angle to the horizontal comprises an upper, a middle and a lower roof support unit arranged adjacent each other and having each a pair of elongated transversely spaced skids rigidly connected by bridges to each other and engaging the sole of the inclined mine gallery. An abutment beam likewise engaging the sole is arranged inclined to the elongation of the skids adjacent to the face of the gallery to be mined and connected to the skids of the middle roof support unit by a pair of flat sole plates rigid with the beam and tiltable about horizontal axes with respect to the skids, whereas the upper and the lower roof support unit are connected to the beam by flat elongated sole engaging end members connected to the beam pivotable about vertical pivot axes. In this way ample space is provided beneath the roof of the mine gallery between the beam and the roof support units to permit mining of coal seams of small height.
    Type: Grant
    Filed: January 8, 1981
    Date of Patent: October 5, 1982
    Assignee: Bochumer Eisenhuette Heintzmann GmbH & Co.
    Inventor: Kurt Plaga
  • Patent number: 4332512
    Abstract: An arrangement for erecting a columnar supporting element of a hardenable flowable material, for a roof of an underground excavation, has a hollow casing for filling with a hardenable flowable material and is composed of two telescopable casing portions each composed of two open-end semi-circular sections, an element for holding the upper casing portion in contact with the roof of an underground excavation and arranged adjacent to the casing, and elements for connecting the semi-circular sections of at least the lower prop casing portions with one another so as to be pivotable about a longitudinal pivot axis which is parallel to the longitudinal axis of the prop casing, and locking the same with one another.
    Type: Grant
    Filed: April 30, 1980
    Date of Patent: June 1, 1982
    Assignee: Bochumer Eisenhuette Heintzmann GmbH & Co.
    Inventors: Peter Heintzmann, Manfred Koppers, Karlheinz Bohnes
  • Patent number: 4280734
    Abstract: An arrangement for controlled engagement of the tools of a coal planer, with a mine face comprises a scraper conveyor, provided on its front face directed toward the mine face with a guide rail guiding the coal planer for reciprocation along the mine face and a mechanism for tilting the conveyor and the coal planer about a substantially horizontal axis. The tilting mechanism is connected to the rear face of the conveyor and extends in its entirety rearwardly of the rear face of the latter. The tilting mechanism comprises a guide linkage pivotally connected at its front end to the rear face of the scraper conveyor while its rear end portion forms a housing for a fluid operated cylinder and piston unit, the piston rod of which is connected to a connecting rod guided by the guide linkage for movement in longitudinal direction and having an upwardly extending front section pivotally connected at its upper free end to the rear face of the scraper conveyor.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: July 28, 1981
    Assignee: Bochumer Eisenhuette Heintzmann GmbH & Co.
    Inventors: Gunter Blumenthal, Alfred Bollmann
  • Patent number: 4244521
    Abstract: An arrangement for discharging liquid medium under a high pressure from a feed pipe having a tubular end portion, includes a jet support with a jet. The jet support is installed inside the tubular end portion of the feed pipe. The jet support has an inlet, an outlet and passages which connect the inlet to the outlet and are so formed and shaped as to increase the pressure of the liquid medium as the same exits the arrangement through the outlet. The jet support is screwed into the tubular end portion of the feed pipe and sealingly connected thereto.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: January 13, 1981
    Assignee: Bochumer Eisenhuette Heintzmann GmbH & Co.
    Inventor: Kuno Guse