Patents by Inventor Guy Geuns

Guy Geuns has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5362133
    Abstract: In a method of mining coal seams using a ploughing cutter, a longwall conveyor extending along the coal face is moved forwards by the extension of self-advancing cylinders, the advance being controlled in dependence on a piston stroke of a respective self-advancing cylinder and being made in individual defined partial strokes using travel-measuring signals generated at each partial stroke. The distance covered by the partial strokes corresponds to the preset depth of cutting and is increased by an amount sufficient to compensate an average mechanical clearance at the pivot points of the self-advancing cylinders. In addition, a defined face line is fixed with respect to a center of rotation on the side of a main or auxiliary drive of the cutter so as to form a straight line through the center of rotation, the straight line being pivoted through an angle < so that a circular segment is mined.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: November 8, 1994
    Assignee: Hermann Hemscheidt Maschinenfabrik GmbH & Co.
    Inventor: Guy Geuns
  • Patent number: 5275469
    Abstract: A method of working coal seams to a defined preset cutting depth during ploughing with a cutter, a face conveyor moving along a face behind the cutter being advanced by the defined preset cutting depth and this advance being made by extension of self-advancing cylinders pivotally attached at one end to the face conveyor and at the other end to face supports disposed parallel to the face conveyor. The advance is controlled in dependence upon the piston stroke of the self-advancing cylinders, carried out in dependence upon individually defined partial strokes corresponding to the preset depth of cutting. After a predetermined maximum total piston stroke has been reached, the face support connected to the respective self-advancing cylinder is automatically disengaged, advanced by the maximum total piston stroke and then re-set (self-advancing process).
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: January 4, 1994
    Assignee: Hermann Hemscheidt Maschinenfabrik GmbH
    Inventors: Guy Geuns, Werner Reinelt
  • Patent number: 5181451
    Abstract: A control system for longwall face support frames as used in mines, the system comprising pushing rams which are adapted to be actuated at two different pressures (for example, a low pressure of about 70 to 120 bar for non-defined cutting and a high pressure of 120 to 350 bar for defined cutting) with each pushing ram being individually actuatable by a respective non-return valve arrangement, the pushing rams being connected by a common pressure line to an hydraulic pressure unit.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: January 26, 1993
    Assignee: Hermann Hemscheidt Maschinenfabrik GmbH & Co.
    Inventors: Guy Geuns, Werner Reinelt
  • Patent number: 5050060
    Abstract: An intrinsically safe power supply unit, more particularly for face supports in mining, comprising an ac transformer connected to a rectifier and power resistors for limiting the current and connected to the dc voltage output, wherein the ac voltage transformer is a resonance transformer which stabilizes the secondary voltage, and the dc voltage occurring behind the power resistors is kept constant by three voltage limiters connected in parallel.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: September 17, 1991
    Assignee: Hermann Hemscheidt Maschinenfabrik GmbH & Co.
    Inventor: Guy Geuns
  • Patent number: 5011433
    Abstract: A multipole connector in the form of a sealed lead-through for fitting through a wall of a casing of a control device used for underground working, comprising a contact-holder secured via securing parts in sealing-tight manner in an opening in the wall and having a number of contact chambers extending through the contact holder parallel to one another in the direction of the longitudinal axis of the connector, each contact chamber containing contact elements which have connecting pieces which project outwards from one side of the contact holder for the purpose of making connections, characterized in that the connecting pieces of the contact elements comprise parallel soldering taps.
    Type: Grant
    Filed: October 17, 1989
    Date of Patent: April 30, 1991
    Assignee: Hermann Hemscheidt Maschinenfabrik GmbH & Co.
    Inventors: Otmar Pfeiffer, Guy Geuns, Josef Welzel
  • Patent number: 4780638
    Abstract: The invention relates to a method and system for supplying devices which are charged with a fluid pressure medium as a working medium with electrical energy for actuating electrical parts of the device, wherein an energy converter is subjected to the fluid pressure medium in such a way that a fraction of the energy of the fluid pressure medium is converted into electrical energy which is then stored in an electric store.
    Type: Grant
    Filed: June 16, 1987
    Date of Patent: October 25, 1988
    Inventors: Werner Reinelt, Guy Geuns, Karl Krieger, deceased, by Hildegard Krieger, legal representative
  • Patent number: 4398851
    Abstract: A system for advancing timbering in underground mines comprises a number of longwall supporting timbering units which are pushed forward hydraulically in accordance with the progress of the working obtained by a mining machine, along with a conveyer device. Each timbering unit is equipped with an electronic control device which is connected to a computer in a control room. The control units are connected in series via control lines in such a manner that the control data delivered by the computer and the acknowledgment data delivered by the respective addressed control unit are passed on via first receivers and transmitters and via second transmitters and receivers, respectively, from one control unit to the immediately adjacent one in ascending or descending sequence back to the computer.
    Type: Grant
    Filed: November 18, 1981
    Date of Patent: August 16, 1983
    Assignee: Siemens Aktiengesellschaft
    Inventors: Guy Geuns, Georg Rotzer