Patents by Inventor Heinrich Kersten
Heinrich Kersten 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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Patent number: 8960336Abstract: A rock drill bit having a shank fitted with a clamping end and a drilling tip located from the clamping end. The drilling tip has at least three blades and a central zone centered on a drill bit axis. The blades each include on a top side thereof a lip constituted by a leading chipping face and a trailing flank. The lips substantially converge onto each other within a the central zone of the drilling tip, wherein in the central zone, a long lip of the lips runs through the drill bit axis and has a commensurate overshoot segment extending beyond the drill bit axis.Type: GrantFiled: September 3, 2009Date of Patent: February 24, 2015Assignee: Heller Tools GmbHInventors: Heinrich Kersten, Joerg Frommeyer, Sven Elmers, Hermann Albers, Ranier Lampe
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Patent number: 8157028Abstract: A masonry drill bit includes a cutting insert which is substantially roof-shaped in sideview and has on each side of its “roof” one lip. Each lip includes a leading cutting surface and a trailing free surface, wherein the mutually abutting free surfaces at the roof ridge define a chisel edge. Each free surface is concave in a sub-zone adjacent to the chisel edge in a manner that the radially outer ends of the chisel edge axially protrude at the end face of the insert relative to the in-between center of the chisel edge. Each lip includes at least one recess and to that extent deviates from the substantially roof-shaped geometry.Type: GrantFiled: March 1, 2007Date of Patent: April 17, 2012Assignee: Illinois Tool Works Inc.Inventor: Heinrich Kersten
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Publication number: 20110168453Abstract: A rock drill bit comprising a shank fitted with a clamping end and a drilling tip at the end away from the clamping end, the drilling tip comprising at least three, preferably exactly three blades which are alar in topview, said blades each comprising at their top side a lip constituted by a leading chipping face and a trailing flank, the lips substantially converging onto each other within a central zone centered on the drill bit axis, characterized in that, in the central zone, a single lip—long lip—runs through the bit axis and comprises a commensurate overshoot segment extending beyond the bit axis.Type: ApplicationFiled: September 3, 2009Publication date: July 14, 2011Applicant: ILLINOIS TOOL WORKS INC.Inventors: Heinrich Kersten, Joerg Frommeyer, Sven Elmers, Hermann Albers, Ranier Lampe
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Publication number: 20100183391Abstract: A masonry drill bit includes a cutting insert which is substantially roof-shaped in sideview and has on each side of its “roof” one lip. Each lip includes a leading cutting surface and a trailing free surface, wherein the mutually abutting free surfaces at the roof ridge define a chisel edge. Each free surface is concave in a sub-zone adjacent to the chisel edge in a manner that the radially outer ends of the chisel edge axially protrude at the end face of the insert relative to the in-between center of the chisel edge. Each lip includes at least one recess and to that extent deviates from the substantially roof-shaped geometry.Type: ApplicationFiled: March 1, 2007Publication date: July 22, 2010Applicant: ILLINOIS TOOL WORKS INC.Inventor: Heinrich Kersten
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Patent number: 7258180Abstract: A rotary hammerdrill bit for use with a percussion drilling device or a hammer drilling device, with a shank and a drill head attached to or configured on the shank, wherein a front side pointing in the advance direction of the drill head has a main cutting plate forming a main cutting axis. The main cutting plate extends over the diameter of the drill head and has a tip or tip-edge lying in the longitudinal axis of the drill bit and forms drill blades that are substantially roof-shaped and are inclined radially from the tip or tip-edge. The front side of the drill head has at least one pair of cutting pins, wherein the cutting pins are arranged on the drill head in essentially the same radial positions.Type: GrantFiled: November 2, 2004Date of Patent: August 21, 2007Assignee: Illinois Tool Works Inc.Inventor: Heinrich Kersten
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Publication number: 20050092528Abstract: The invention relates to a rotary hammerdrill bit for use with a percussion drilling device or a hammer drilling device, with a shank and a drill head attached to or configured on the shank, wherein on its front side pointing in the advance direction the drill head has a main cutting plate forming a main cutting axis. The main cutting plate extends at least over the diameter of the drill head, has a tip or tip-edge lying in the longitudinal axis of the drill bit and forms drill blades that are extending substantially roof-shaped at an incline radially from the tip or tip-edge. On its front side pointing in the advance direction the drill head also has at least one pair of cutting pins, wherein the cutting pins are arranged on the drill head in essentially the same radial positions, and are arranged on both sides of the main cutting plate substantially symmetrically at a specific angle of less than 90° to the main cutting axis.Type: ApplicationFiled: November 2, 2004Publication date: May 5, 2005Applicant: ILLINOIS TOOL WORKS INC.Inventor: Heinrich Kersten
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Patent number: 6446741Abstract: Drills, particularly rock drills, with a chisel shank and a drill head with at least one drill bit or tool bit on a face pointing in a feed direction have the tool bit formed of at least one cutting edge provided on the face side between a rake surface and a free surface with the rake surface being in the direction of rotation of the drill and being ahead of the cutting edge. The free surface has at least a portion which extends into the drill bit over at least one sub-area to form a concave depression.Type: GrantFiled: September 15, 2000Date of Patent: September 10, 2002Assignee: Gebrueder Heller Dinklage GmbHInventors: Heinrich Kersten, Hartmut Precht
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Patent number: 6250857Abstract: A drill having a drill head with a drill shank extending between the drill head and a plug-in end lying opposite the drill head, said drill shank having a conveying helix formed by at least two helical flutes and webs located between the flutes. The flutes comprise the same clear cross section at least in the region of the end of the drill shank adjacent the drill head and are arranged at an angle a in a range of 130° through 170° relative to one another.Type: GrantFiled: September 14, 1999Date of Patent: June 26, 2001Assignee: Gebrüder Heller Drinklage GmbHInventor: Heinrich Kersten
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Patent number: 6032750Abstract: Drilling tool with a drill head with an end face pointing in the feed direction and which has a main bit, which forms a drill point located in the drill axis and the bit is inclined on either side in a substantially roof-shaped manner and the tool has drilling dust grooves. The main bit has a primary cutting edge, which extends radially over at least one side of the main bit, and a secondary cutting edge, which extends radially over substantially the remaining length of the main bit and is axially set back with respect to the primary cutting edge counter to the feed direction by at least the amount of feed in millimeters per revolution.Type: GrantFiled: February 4, 1998Date of Patent: March 7, 2000Assignee: Gebrueder Heller Dinklage GmbHInventors: Heinrich Kersten, Hartmut Precht
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Patent number: 5366115Abstract: The invention relates to a deformable container (10) for delivering a liquid from a dispensing opening (12) on the sealing part (14), there being assigned to the ventilating opening (90) of the container (10) a ventilating valve (18) which is open in the event of underpressure in the container (10). The sealing part (14) is disposed on a metering element (20), which is inserted sealingly in the opening in the container (10) and is provided with two outlet ducts (24, 26). The outlet ducts (24, 26) serve to dispense the liquid in jet or drop form and can optionally be connected, by twisting the sealing part (14), to the dispensing opening (12) of the sealing part (14). The liquid is located in an inner bag (50), which is connected, in each case via a shut-off valve (64, 66), to the outlet ducts (24, 26).Type: GrantFiled: June 16, 1993Date of Patent: November 22, 1994Assignee: Perfect-Valois Ventil GmbHInventors: Jens-Heinrich Kersten, Detlef Schmitz
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Patent number: 5340031Abstract: A foaming head (10) has a discharge nozzle (12), the discharge channel (14) of which has at the upper end a tubular section (16), the upper end of which is closed by a deflecting plate (18) and is provided with passage slits (22) which open out radially into an outlet slit (24) in the head wall (20). An inner base (26) of each outlet slit (24) extends radially outwardly from the lower end (28) of each passage slit (22) as far as a deflecting wall (30) which together with the discharge channel (14) forms an acute angle which opens towards the head wall (20). An upper end (32) of each deflecting wall (30) is arranged at a level which is approximately two-thirds of the height of the tubular section (16). An outer base (34) of each outlet slit (24) extends radially outwardly from the upper end (32) of the deflecting wall (30) as far as the vicinity of an outer edge (36) of the head wall (20).Type: GrantFiled: July 27, 1993Date of Patent: August 23, 1994Assignee: Perfect-Valois Ventil GmbHInventors: Reinhard Neuhaus, Jens-Heinrich Kersten, Detlef Schmitz
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Patent number: 5328060Abstract: The invention comprises a synthetic pack, in the filler container (11) of which there is integrated a compression spring element (16), against whose resistance a dispensing head (12) can be moved downwards with its carrier (18) of the filler container (11) and the filler can be pressurized. A ventilation valve (50) is herewith closed prior to the opening of a dispensing valve (22), which is circuit-connected into a product duct formed by a lifting tube (15) and product ducts (27, 40, 14). The dispensing head (12) is sealtight on the carrier (18) of the filler container (11), but is twistable between a closed position and an open position, the product duct (14, 40) of the dispensing head (12), in the open position, being aligned with the product duct (27) in a lifting tube nipple (20) and the ventilation valve (50) of the dispensing head (12) being aligned with a ventilation opening (29) in a headplate (19) of the carrier (18).Type: GrantFiled: May 21, 1993Date of Patent: July 12, 1994Assignee: Perfect-Valois Ventil GmbHInventors: Jens-Heinrich Kersten, Detlef Schmitz, Peter Runte
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Patent number: D629027Type: GrantFiled: March 23, 2009Date of Patent: December 14, 2010Assignee: Illinois Tool Works Inc.Inventors: Heinrich Kersten, Joerg Frommeyer, Sven Elmers, Hermann Albers
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Patent number: RE35354Abstract: The invention comprises a synthetic pack, in the filler container (11) of which there is integrated a compression spring element (16), against whose resistance a dispensing head (12) can be moved downwards with its carrier (18) of the filler container (11) and the filler can be pressurized. A ventilation valve (50) is herewith closed prior to the opening of a dispensing valve (22), which is circuit-connected into a product duct formed by a lifting tube (15) and product ducts (27, 40, 14). The dispensing head (12) is sealtight on the carrier (18) of the filler container (11), but is twistable between a closed position and an open position, the product duct (14, 40) of the dispensing head (12), in the open position, being aligned with the product duct (27) in a lifting tube nipple (20) and the ventilation valve (50) of the dispensing head (12) being aligned with a ventilation opening (29) in a headplate (19) of the carrier (18).Type: GrantFiled: April 7, 1995Date of Patent: October 22, 1996Assignee: Perfect-Valois Ventil GmbHInventors: Jens-Heinrich Kersten, Detlef Schmitz, Peter Runte
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Patent number: D688715Type: GrantFiled: July 24, 2012Date of Patent: August 27, 2013Assignee: Illinois Tool Works, Inc.Inventors: Rainer Lampe, Heinrich Kersten
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Patent number: D723076Type: GrantFiled: July 24, 2012Date of Patent: February 24, 2015Assignee: Heller Tools GmbHInventors: Rainer Lampe, Heinrich Kersten