Patents by Inventor Karl Bohm
Karl Bohm 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).
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Publication number: 20130098689Abstract: In a two-part drilling tool for the percussive or rotary percussive drilling of holes in soil material or rock material, including a drill head (1) and an adapter part (7), which is fixed in an interior of the drill head (1) by way of interacting, complementary threads (11, 14) and is intended for providing the coupling to a drill string, wherein an end face (3) of the drill head (1) that is remote from a borehole interior rests on a complementarily formed stop or support surface of the adapter part (7), the end face (3) of the drill head (1) that is remote from the borehole interior and the stop or support surface of the adapter part (7) interacting therewith comprise complementarily formed wedge-shaped surfaces (4, 6) with end teeth (5, 8), and a lead angle (?1) of the wedge-shaped surfaces (4, 6) is smaller than a lead angle (?2) of an internal thread of the drill head (1) or the external thread interacting therewith of the adapter part (7) or of the drill string.Type: ApplicationFiled: April 6, 2011Publication date: April 25, 2013Applicant: DYWIDAG-SYSTEMS INTERNATIONAL GMBHInventors: Walter Karpeilus, Karl Böhm
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Publication number: 20120247835Abstract: In a method for drilling holes in soil or rock material, wherein a borehole is formed by a drill bit by a percussive and/or rotational movement, a casing adjoining the drill bit is introduced into the borehole and material that is removed is introduced into the annular space formed between the outer circumference of the drill rod and the inner circumference of the casing via at least one passage opening formed between the drill bit and the casing, and is discharged from the borehole, the impact energy of the drill rod is applied to the drill bit via an adapter cooperating with the drill bit and a drill rod, and that the impact energy is applied to the drill bit partially via an impact shoulder of the adapter and partially via a threaded connection between the adapter and the drill bit.Type: ApplicationFiled: November 5, 2010Publication date: October 4, 2012Inventors: Karl Böhm, Walter Karpellus
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Publication number: 20120139237Abstract: In a pipe connection between a first pipe and a second pipe, wherein an end section of the one pipe is designed as a pointed end and embraced by an end section of the other pipe, which end section is in the form of a sleeve end, wherein the pointed end has a reduced diameter in comparison to the pipe circumference, it is provided that a depression extending at least over a partial region of the circumference of the pointed end is formed on that end region of the pointed end which faces away from the pipe end.Type: ApplicationFiled: July 14, 2010Publication date: June 7, 2012Inventors: Karl Böhm, Walter Karpellus
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Patent number: 7874380Abstract: A method and device for drilling, particularly percussion drilling or rotary percussion drilling a hole in soil or rock material and fixing an anchoring in the hole. To this end, a drilled hole is made by a drill bit mounted on a drill rod. The drill rod, on the rear side facing away from the drilling surface of the drill bit, is surrounded at a distance from the drill bit by an anchoring element whose outside dimension exceeds, at least in part, the circumference of the drilled hole made by the drill bit.Type: GrantFiled: May 30, 2006Date of Patent: January 25, 2011Assignee: “ALWAG” Tunnelausbau Gesellschaft m.b.H.Inventors: Josef Mocivnik, Alfred Wagner, Karl Bohm
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Publication number: 20100282513Abstract: Disclosed are a method and a device for drilling, particularly percussion drilling or rotationally drilling, a hole (2) in ground or rock material and forming a brace in said hole (2). According to the invention, a borehole (2) is formed by a bit (7) that is mounted on drilling rods (1), and a brace is formed by at least one expanding element (12) that is mounted along the circumference of the drilling rods (1) and is brought, especially by expanding the same, into a position in which the expanding element (12) penetrates or rests against the material (22) surrounding the borehole (2), thus allowing for reliable bracing immediately after creating a borehole (2).Type: ApplicationFiled: June 17, 2008Publication date: November 11, 2010Inventors: Karl Böhm, Walter Karpellus
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Publication number: 20090133933Abstract: The invention relates to a method and device for drilling, particularly percussion or rotary percussion drilling, a hole in soil or rock material and for producing an anchoring. According to the invention, a drill bit (2) fastened to drilling rods (3) makes a drilled hole (1). A number of, in particular, wedge-shaped spreading elements (7) oriented contrary to the direction of drilling (6) are provided in a part joined to the drill bit (2). These spreading elements can be introduced into the wall of the drilled hole (1) after the drilled hole (1) is completed whereby making it possible to obtain a secure anchoring immediately after the drilled hole (1) has been completed.Type: ApplicationFiled: May 26, 2006Publication date: May 28, 2009Inventors: Walter Karpellus, Alfred Wagner, Karl Bohm
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Publication number: 20090114402Abstract: The invention relates to a method and device for drilling, particularly percussion drilling or rotary percussion drilling a hole in soil or rock material and fixing an anchoring in the hole. To this end, a drilled hole is made by a drill bit (3) mounted on a drill rod (2). According to the invention, the drill rod (2), on the rear side facing away from the drilling surface (5) of the drill bit (3), is surrounded at a distance from the drill bit (3) by an anchoring element (4) whose outside dimension exceeds, at least in part, the circumference of the drilled hole made by the drill bit (3) whereby enabling a constructively easier and more reliable securing of the anchoring inside the drilled hole.Type: ApplicationFiled: May 30, 2006Publication date: May 7, 2009Applicant: ALWAG TUNNELAUSBAU GESELLSCHAFT M.B.H.Inventors: Josef Mocivnik, Alfred Wagner, Karl Bohm
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Patent number: 7320371Abstract: A method and device for boring, particularly percussion boring or rotary percussion boring, a hole in soil or rock material and for forming an anchoring. A borehole is formed by inserting a drill bit, and a casing tube is placed inside the borehole during the boring process. Once the borehole is completed, the boring rods are detached from the drill bit and removed from the borehole. The periphery of the casing tube is provided with a number of passage openings for discharging hardenable material. A tensioning device for the anchor, particularly an anchor plate and a screw that can be screwed onto the casing tube, can be fixed to the end of the casing tube protruding from the borehole. Anchoring or fixing elements for anchoring the casing tube on the surrounding inner wall of the borehole are provided, in particular, on the end area of the casing tube oriented toward the drill bit.Type: GrantFiled: September 20, 2006Date of Patent: January 22, 2008Assignee: “ALWAG” Tunnelausbau Gesellschaft m.b.H.Inventors: Josef Mocivnik, Renè Egger-Mocivnik, Alfred Wagner, Karl Böhm
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Publication number: 20070012482Abstract: The invention concerns a method and device for boring, particularly percussion boring or rotary percussion boring, a hole (2) in soil or rock material and for forming an anchoring. According to the invention, a borehole (2) is formed by inserting a drill bit (4), and a casing tube (7) is placed inside the borehole (2) during the boring process. Once the borehole (2) is completed, the boring rods (5) are detached from the drill bit (4) and removed from the borehole (2). The periphery of the casing tube (7) is provided with a number of passage openings (23) for discharging hardenable material. A tensioning device (13, 14) for the anchor, particularly an anchor plate and a screw that can be screwed onto the casing tube (7), can be fixed to the end of the casing tube (7) protruding from the borehole (2).Type: ApplicationFiled: September 20, 2006Publication date: January 18, 2007Inventors: Josef Mocivnik, Rene Egger-Mocivnik, Alfred Wagner, Karl Bohm
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Patent number: 7004686Abstract: In a method and device for drilling, in particular impact drilling or rotary percussion drilling, a hole in soil or rock material and forming an anchorage in the hole, wherein a bore hole is formed by the introduction of a drill bit, it is provided that the drill rod assembly of the drilling device includes at least one expandable element having at least one hollow space extending substantially in the longitudinal direction of the bore for introducing a fluid under pressure to at least partially widen the outer periphery of the expandable element, and/or the drill rod assembly is connected with at least one expandable element each including at least one hollow space substantially extending in the longitudinal direction of the bore for introducing a fluid under pressure to widen the outer periphery, thus ensuring a safe anchorage by the expansion of the expandable elements both over the periphery and over the length of the device at a simplified overall construction.Type: GrantFiled: July 8, 2004Date of Patent: February 28, 2006Assignees: Techmo Entwicklungs- und Vertriebs GmbH, Alwag Tunnelausbau Gesellschaft m.b.H.Inventors: Josef Mocivnik, Karl Bohm
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Publication number: 20040231890Abstract: In a method and device for drilling, in particular impact drilling or rotary percussion drilling, a hole in soil or rock material and forming an anchorage in said hole, wherein a bore hole is formed by the introduction of a drill bit (2), it is provided that the drill rod assembly of the drilling device is comprised of at least one expandable element (3, 4) having at least one hollow space extending substantially in the longitudinal direction of the bore for introducing a fluid under pressure to at least partially widen the outer periphery of the expandable element (3, 4), and/or the drill rod assembly is connected with at least one expandable element (3, 4) each including at least one hollow space substantially extending in the longitudinal direction of the bore for introducing a fluid under pressure to widen the outer periphery, thus ensuring a safe anchorage by the expansion of the expandable elements (3, 4) both over the periphery and over the length of the device at a simplified overall construction.Type: ApplicationFiled: July 8, 2004Publication date: November 25, 2004Inventors: Josef Mocivnik, Karl Bohm
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Publication number: 20030079915Abstract: The invention relates to a device for drilling, especially percussion drilling or rotary percussion drilling, holes (2), comprising a drill bit (3) with a drilling or breaking surface (14), a drill rod (4) for introducing a rotary or percussive force and for introducing a rinsing or cooling fluid into the drill bit (3) and a sheath pipe (5) which defines a hollow space (6) between the drill rod (4) and the inside of the sheath pipe (5) and which is supported on the drill rod (4) or which can be connected to the drill bit (3).Type: ApplicationFiled: August 23, 2002Publication date: May 1, 2003Inventors: Josef Mocivnik, Karl Bohm
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Patent number: 6431292Abstract: The invention relates to a device (1) for the drilling, notably by percussion or rotary-percussion drilling, and draining of holes in soil or rock. A drill bit (2, 3) mounted on a drill rod (4) creates a bore hole and a jacket tube (6) is coupled to the drill rod (4) or the drill bit (2, 3). In the area adjacent to the drill bit (2, 3) the jacket tube (6) has at least one through hole which opens into an annular space embodied between the drill rod and the jacket tube. In the end area adjacent to the drill bit (2, 3) the jacket tube (6) is surrounded by at least one filter tube (7) having a plurality of through holes or slits (8) which are distributed especially evenly across its circumference. This allows for correspondingly safe and reliable drainage during boring, using simple measures.Type: GrantFiled: February 15, 2001Date of Patent: August 13, 2002Assignees: Techno Entwicklungs - und Vertriebs GmbH, “Alwag” Tunnelausbau Gellschaft mbHInventors: Josef Mocivnik, Karl Bohm
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Publication number: 20020081160Abstract: The present invention relates to an expansion anchor, in particular for mining, wherein at least one widenable expansion element is provided on the external side of the expansion anchor including an anchor rod, wherein the expansion element in a retention element fixed to the anchor rod is maintained in an abutment position during the insertion of the expansion anchor into a hole and the expansion element is expansible by the expansion element cooperating with a stop element anchored within the bore hole, wherein the expansion element is expansible through a movement of the anchor rod in the direction towards the opening of the bore hole.Type: ApplicationFiled: February 5, 2002Publication date: June 27, 2002Inventors: Josef Mocivnik, Karl Bohm
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Patent number: 6397957Abstract: A jacket tube for a device for drilling holes and forming an anchorage in the earth or rock. The jacket tube is coupled with a drill pipe and/or a drill bit or a drill hammer and is configured with a plurality of through openings across its periphery. Once the borehole has been made, or after an anchor has been introduced, the jacket tube can be filled with a hardenable suspension. The jacket tube consists of at least one expanded metal element which has evenly distributed through openings and connecting elements, especially sleeves, at the ends for connecting to a drill bit and/or other jacket tube elements. The borehole is therefore easy to produce and the jacket tube can be anchored securely.Type: GrantFiled: April 4, 2001Date of Patent: June 4, 2002Assignees: Techmo Entwicklungs-und Vertriebs GmbH, “ALWAG” Tunnelausbau Gesellschaft m.b.H.Inventors: Josef Mocivnik, Karl Bohm
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Publication number: 20010013427Abstract: The invention relates to a jacket tube (6) for a device for drilling holes and forming an anchorage in the earth or rock. The inventive jacket tube (6) is coupled with a drill pipe (3) and/or a drill bit (1) or a drill hammer and is configured with a plurality of through openings across its periphery. Once the borehole (2) has been made, or after an anchor has been introduced, the jacket tube can be filled with a hardenable suspension. According to the invention, the jacket tube consists of at least one expanded metal element (6) which has evenly distributed through openings (9) and connecting elements (7, 8), especially sleeves, at the ends for connecting to a drill bit (1) and/or other jacket tube elements (6). The borehole (2) is therefore easy to produce and the jacket tube (6) can be anchored securely.Type: ApplicationFiled: April 4, 2001Publication date: August 16, 2001Inventors: Josef Mocivnik, Karl Bohm
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Publication number: 20010004025Abstract: The invention relates to a device (1) for the drilling, notably by percussion or rotary-percussion drilling, and draining of holes in soil or rock. A drill bit (2, 3) mounted on a drill rod (4) creates a bore hole and a jacket tube (6) is coupled to the drill rod (4) or the drill bit (2, 3). In the area adjacent to the drill bit (2, 3) the jacket tube (6) has at least one through hole which opens into an annular space embodied between the drill rod and the jacket tube. In the end area adjacent to the drill bit (2, 3) the jacket tube (6) is surrounded by at least one filter tube (7) having a plurality of through holes or slits (8) which are distributed especially evenly across its circumference. This allows for correspondingly safe and reliable drainage during boring, using simple measures.Type: ApplicationFiled: February 15, 2001Publication date: June 21, 2001Inventors: Josef Mocivnik, Karl Bohm
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Patent number: 6145601Abstract: A process and device for boring holes in soil or rocks, in particular for percussion or rotary percussion boring. A bore hole is formed by an annular drill bit mounted on boring rods and at the same time a jacket tube which surrounds the boring rods with a certain gap is introduced. The annular drill bit is flushed during boring by a flushing medium fed into the annular gap defined between the boring rods and the jacket tube. When boring is completed, a setting suspension is fed into the annular gap to form an anchorage with the boring rods. An anchorage can thus be obtained in a simple and reliable manner immediately after a bore hole is completed, in particular in loose or slack material, by a device having a simple design.Type: GrantFiled: December 17, 1999Date of Patent: November 14, 2000Assignees: Techmo Entwicklungs-und Vertriebs GmbH, ALWAG" Tunnelausbau Gesellschaft m.b.H.Inventors: Josef Mocivnik, Karl Bohm
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Patent number: 6106200Abstract: In a process for drilling, in particular rotary percussion or percussion drilling, and lining holes in the ground or rocks, a hole is percussion and/or rotation drilled by a cutter mounted on boring rods and a lining is formed by a jacket tube. During drilling, at least one jacket tube coupled to the cutter is drawn in the axial direction by the cutter into the bore hole and once drilling is finished, the cutter is at least partially removed from the jacket tube together with the boring rods. In a device for drilling, in particular percussion or rotary percussion drilling, and lining holes in the ground or rocks, a cutter mounted on boring rods drills a bore hole by percussion and/or rotary drilling. The cutter is divided in the radial direction.Type: GrantFiled: May 12, 1999Date of Patent: August 22, 2000Assignees: Techmo Entwicklungs-und Vertriebs GmbH, ALWAG" Tunnelausbau Gesellschaft m.b.H.Inventors: Josef Mocivnik, Karl Bohm