Patents Assigned to Kamax-Werke Rudolf Kellermann GmbH & Co.
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Patent number: 8210784Abstract: A fastener assembly (1) includes a screw (2) and a bush (3). The screw (2) includes a head (4), a shank portion (6) and a threaded portion (7) including a thread (8). The shank portion (6) is arranged to face the head (4) and the threaded portion (7) is arranged to face away from the head (4). The shank portion (6) has a diameter and the thread (8) has an outer diameter, the diameter of the shank portion (6) being smaller than the outer diameter of the thread (8). The bush (3) includes a first narrowing location (10) having a diameter being smaller than the outer diameter of the thread (8). The bush (3) is captively connected to the screw (2) by the first narrowing location (10). The bush (3) includes at least one resilient element (15) having an actuation portion (28) and an engagement portion (29).Type: GrantFiled: June 11, 2009Date of Patent: July 3, 2012Assignee: KAMAX-Werke Rudolf Kellermann GmbH & Co. KGInventor: Gunther Hartmann
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Patent number: 8202031Abstract: A fastener assembly (1) includes a screw (2) and a bush (3). The screw (2) includes a head (4), a shank portion (6) and a threaded portion (7) including a thread (8). The shank portion (6) is arranged to face the head (4) and the threaded portion (7) is arranged to face away from the head (4). The shank portion (6) has a diameter and the thread (8) has an outer diameter, the diameter of the shank portion (6) being smaller than the outer diameter of the thread (8). The bush (3) includes a first narrowing location (10) having a diameter being smaller than the outer diameter of the thread (8). The bush (3) is captively connected to the screw (2) by the first narrowing location (10). The bush (3) includes a second narrowing location (11) including at least one resilient element (15) being designed and arranged to elastically engage the thread (8). The bush (3) includes a slot (17) or a gap (19) being designed and arranged to continuously extend over the bush (3) in an axial direction.Type: GrantFiled: October 30, 2008Date of Patent: June 19, 2012Assignee: KAMAX-Werke Rudolf Kellermann GmbH & Co. KGInventor: Gunther Hartmann
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Patent number: 8197170Abstract: An anti-cross threading screw (1) includes a first threaded portion (4) including a first thread (5) having a first outer diameter (6) and a first pitch (9) and a second threaded portion (12) having a second thread (13) having second outer diameter (18) and a second pitch (21). The second threaded portion (12) is designed as an anti-cross threading portion. The second thread (13) has enlarged an thread crest (15). The second outer diameter (18) of the second thread (13) is smaller than the first diameter (6) of the first thread (5). The first pitch (9) of the first thread (5) is different than the second pitch (21) of the second thread (13).Type: GrantFiled: September 14, 2009Date of Patent: June 12, 2012Assignee: Kamax-Werke Rudolf Kellermann GmbH & Co. KGInventor: Frank Wagner
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Publication number: 20110150562Abstract: A ball stud fastener (1) includes a stud stub (2) including a first free end (3), a threaded portion (4), an attachment channel (9), a bead (10), a cylindrical portion (11), a conical portion (12) and a second end (13). The threaded portion (4) is located in the region of the first free end (3). The attachment channel (9) is designed for attachment of a bellow (22) and the like to the stud stub (2), the attachment channel (9) being located between the threaded portion (4) and the conical portion (12) in an axial direction, the attachment channel (9) having a first axial end facing the conical portion (12), the first axial end being located next to the bead (10). The conical portion (12) is arranged between the bead (10) and the second end (13) in an axial direction. The bead (10) is produced by cold forming in an axial direction. The cylindrical portion (11) is located between the bead (10) and the conical portion (12), the cylindrical portion (11) resulting from cold forming of the bead (10).Type: ApplicationFiled: December 6, 2010Publication date: June 23, 2011Applicant: KAMAX-WERKE RUDOLF KELLERMANN GMBH & CO. KGInventors: Karl-Eduard LUTZ, Reiner RUEHL
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Patent number: 7828502Abstract: A mounting unit (1) serves to rotatably and captively fasten a screw (2) to a mounting part (3), especially the fastening eyelet (4) of a belt buckle of an automobile, a truck or a different commercial vehicle. The mounting unit (1) includes a screw (2) including a head (5), a shank portion (6) and a threaded portion (7) including a thread (8), the shank portion (6) being arranged in a region between the head (2) and the threaded portion (7).Type: GrantFiled: August 1, 2008Date of Patent: November 9, 2010Assignees: Kamax-Werke Rudolf Kellermann GmbH & Co. KG, A. Raymond Et CieInventors: Sylvain Chretien, Andreas Mohr, Karl-Eduard Lutz, Stéphane Gombert, Nicolas Cirasaro
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Publication number: 20090317207Abstract: A fastener assembly (1) includes a screw (2) and a bush (3). The screw (2) includes a head (4), a shank portion (6) and a threaded portion (7) including a thread (8). The shank portion (6) is arranged to face the head (4) and the threaded portion (7) is arranged to face away from the head (4). The shank portion (6) has a diameter and the thread (8) has an outer diameter, the diameter of the shank portion (6) being smaller than the outer diameter of the thread (8). The bush (3) includes a first narrowing location (10) having a diameter being smaller than the outer diameter of the thread (8). The bush (3) is captively connected to the screw (2) by the first narrowing location (10). The bush (3) includes at least one resilient element (15) having an actuation portion (28) and an engagement portion (29).Type: ApplicationFiled: June 11, 2009Publication date: December 24, 2009Applicant: KAMAX-WERKE RUDOLF KELLERMANN GMBH & CO. KGInventor: Gunther HARTMANN
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Publication number: 20090136318Abstract: A fastener assembly (1) includes a screw (2) and a bush (3). The screw (2) includes a head (4), a shank portion (6) and a threaded portion (7) including a thread (8). The shank portion (6) is arranged to face the head (4) and the threaded portion (7) is arranged to face away from the head (4). The shank portion (6) has a diameter and the thread (8) has an outer diameter, the diameter of the shank portion (6) being smaller than the outer diameter of the thread (8). The bush (3) includes a first narrowing location (10) having a diameter being smaller than the outer diameter of the thread (8). The bush (3) is captively connected to the screw (2) by the first narrowing location (10). The bush (3) includes a second narrowing location (11) including at least one resilient element (15) being designed and arranged to elastically engage the thread (8). The bush (3) includes a slot (17) or a gap (19) being designed and arranged to continuously extend over the bush (3) in an axial direction.Type: ApplicationFiled: October 30, 2008Publication date: May 28, 2009Applicant: KAMAX-Werke Rudolf Kellermann GmbH & Co. KGInventor: Gunther HARTMANN
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Patent number: 7353676Abstract: An apparatus (1) and a method serve for precision rolling of a surface area (2) of a rotationally symmetrical component (3), especially a screw. The apparatus (1) includes at least two spaced apart rolling tools (4, 5), a measuring unit (9) for determining an actual blank diameter of the component (3), an evaluating unit (10) for comparing the determined actual blank diameter of the component (3) with a predetermined blank diameter and for determining an adjustment value from the result of the comparison, and a control unit (11) for adjusting a distance between the at least two rolling tools (4, 5) in response to the adjustment value.Type: GrantFiled: November 21, 2005Date of Patent: April 8, 2008Assignee: KAMAX-Werke Rudolf Kellermann GmbH & Co. KGInventors: Gunther Hartmann, Wolfgang Sommer, Mario Braun, Matthias Becker
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Patent number: 7278323Abstract: A method and an apparatus serve for determining the deflection of a fastener, especially a screw.Type: GrantFiled: January 3, 2006Date of Patent: October 9, 2007Assignee: KAMAX-Werke Rudolf Kellermann GmbH & Co. KGInventors: Gunther Hartmann, Wolfgang Deeg
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Patent number: 6872040Abstract: A fastener (1) includes a screw (2) and a supporting element (3). The screw (2) includes a head (4), a shank (8) and a threaded portion (12). The threaded portion (12) is located on the shank (8). The threaded portion (12) includes a thread having an outer diameter (14). The threaded portion (12) includes a thread runout (25) facing the head (4) of the screw (2). The shank (8) includes a shank portion (10) having a diameter (11) which is smaller than the outer diameter (14) of the thread. The supporting element (3) is captively connected to the screw (2), and it includes at least one narrow location (27). The narrow location (27) has a diameter (28) which is smaller than the outer diameter (14) of the thread. The narrow location (27) includes at least one surface element (30, 35) facing the thread runout (25) and forming an enveloping cone (31) enveloping the thread runout (25) to prevent the supporting element (3) from getting clamped at the thread runout (25) of the screw (2).Type: GrantFiled: April 11, 2003Date of Patent: March 29, 2005Assignee: KAMAX-Werke Rudolf Kellermann GmbH & Co. KGInventors: Wolfgang Deeg, Gerhard Freidhof, Jürgen Hohl
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Patent number: 6722832Abstract: An assembly unit includes a component including at least one through hole and at least one screw. The screw is associated with the through hole of the component. The screw is designed and arranged to produce a thread. The screw includes a head and a supporting surface to face the component. The screw includes a shank at least partly including a thread. The screw in the region of the shank and close to the supporting surface includes an annular channel, the diameter of the annular channel being less than the core diameter of the thread of the screw and the effective axial length of the annular channel being more than the axial length of the through hole. The diameter of the through hole of the component is more than the core diameter of the thread of the screw and being less than the outer diameter of the thread of the screw.Type: GrantFiled: October 23, 2002Date of Patent: April 20, 2004Assignee: Kamax-Werke Rudolf Kellermann GmbH & Co., KGInventors: Gunther Hartmann, Wolfgang Sommer, Frank Wagner
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Patent number: 6626626Abstract: An assembly unit (1) includes a component (2), one ore more screws (3) and bushes (18). The screw (3) includes a shank (5) at least partially including a thread (10), a head (4) being designed and arranged to rotate the screw (3) and a supporting surface (6) facing the component (2). The supporting surface (6) is designed and arranged to directly contact the component (2) after assembly without contacting the bush (18) to transmit an axial force. The component (2) includes a through hole (17) for each screw (3). The bush (18) is associated with the screw (3), and it is designed and arranged to be fixedly connected in the respective through hole (17). The bush (18), the screw (3) and the component (2) are designed and arranged to be locked and aligned in an axial direction.Type: GrantFiled: November 8, 2001Date of Patent: September 30, 2003Assignee: Kamax-Werke Rudolf Kellermann GmbH & Co. KGInventors: Gunther Hartmann, Wolfgang Sommer, Frank Wagner
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Patent number: 6623226Abstract: An assembly unit includes at least one component and at least one screw including a shank having an outer diameter and at least partially including a thread. The head of the screw is designed and arranged to rotate the screw. A supporting surface of the screw faces the component. The component for each screw includes a through hole having a diameter. At least one bush is associated with the at least one screw, and it is designed and arranged to be insertable into the respective through hole. The bush is made of plastic material, and it is designed and arranged to be fixedly connected in the through hole resulting in elastic deformation of the bush. The inner diameter of the bush is slightly more than the outer diameter of the shank. The supporting surface is designed and arranged to operatively contact the component after assembly without contacting the bush to transmit an axial force. The bush, the screw and the component are designed and arranged to be captively connected.Type: GrantFiled: February 1, 2002Date of Patent: September 23, 2003Assignee: Kamax-Werke Rudolf Kellermann GmbH & Co. KGInventors: Mario Braun, Wolfgang Sommer, Frank Wagner
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Patent number: 6517301Abstract: A fastener assembly for a wheel of a vehicle includes a screw element including a threaded portion, a first supporting surface and a number of first wedge shaped teeth being located at the supporting surface. A supporting element is rotatably connected to the screw element. The supporting element includes a second supporting surface and a number of second wedge shaped teeth being associated with the first wedge shaped teeth. The first wedge shaped teeth are located at the first supporting surface to face the supporting element and the second wedge shaped teeth are located at the second supporting surface to face the screw element.Type: GrantFiled: July 10, 2001Date of Patent: February 11, 2003Assignee: Kamax-Werke Rudolf Kellermann GmbH & Co. KGInventors: Gunther Hartmann, Wolfgang Sommer, Frank Wagner
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Publication number: 20020054807Abstract: An assembly unit (1) includes a component (2), one ore more screws (3) and bushes (18). The screw (3) includes a shank (5) at least partially including a thread (10), a head (4) being designed and arranged to rotate the screw (3) and a supporting surface (6) facing the component (2). The supporting surface (6) is designed and arranged to directly contact the component (2) after assembly without contacting the bush (18) to transmit an axial force. The component (2) includes a through hole (17) for each screw (3). The bush (18) is associated with the screw (3), and it is designed and arranged to be fixedly connected in the respective through hole (17). The bush (18), the screw (3) and the component (2) are designed and arranged to be locked and aligned in an axial direction.Type: ApplicationFiled: November 8, 2001Publication date: May 9, 2002Applicant: KAMAX-Werke Rudolf Kellermann GmbH & Co. KGInventors: Gunther Hartmann, Wolfgang Sommer, Frank Wagner
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Publication number: 20020015628Abstract: A fastener assembly for a wheel of a vehicle includes a screw element including a threaded portion, a first supporting surface and a number of first wedge shaped teeth being located at the supporting surface. A supporting element is rotatably connected to the screw element. The supporting element includes a second supporting surface and a number of second wedge shaped teeth being associated with the first wedge shaped teeth. The first wedge shaped teeth are located at the first supporting surface to face the supporting element and the second wedge shaped teeth are located at the second supporting surface to face the screw element.Type: ApplicationFiled: July 10, 2001Publication date: February 7, 2002Applicant: KAMAX-Werke Rudolf Kellermann GmbH & Co. KGInventors: Gunther Hartmann, Wolfgang Sommer, Frank Wagner
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Patent number: 6264414Abstract: A fastener (1) for connecting at least two components includes a shank (4) having an axis. At least one threaded portion (7) is arranged at the shank (4), and it has a stressed cross section. At least one elongation portion (5) is arranged at the shank (4), and it has a stressed cross section. The stressed cross section of the at least one elongation portion (5) is less than the stressed cross section of the at least one threaded portion (7). At least one fitting portion (6) is arranged at the shank (4). It has a stressed cross section, and it includes a plurality of protrusions (9) and channels (10). The at least one elongation portion (5) and the at least one fitting portion (6) are spaced apart along the axis of the shank (4). The channels (10) have a root diameter determining the stressed cross section of the at least one fitting portion (6).Type: GrantFiled: January 7, 2000Date of Patent: July 24, 2001Assignee: Kamax-Werke Rudolf Kellermann GmbH & Co.Inventors: Gunther Hartmann, Wolfgang Sommer
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Patent number: 5645386Abstract: A force fit connecting element (1), particularly a wheel stud, which may be force fit into in a drilled hole (3) through the exertion of an axial force, having a shank (5) and a stop (4) in the shape of a head, a collar or the like, having a diameter larger than shank (5). The shank (5) has on the side facing the stop (4) a force fit section (10), which is oversized with respect to the corresponding drilled hole (3). The shank (5) has on the side facing away from the stop (4) a section (22) with a fastening thread (23). The force fit section (10) has a multiple-threaded, preferably at least triple-threaded, helical profile (11). The helical profile (11), with respect to the cylindrical surface area of the drilled hole (3), has a contact area fraction (33) of at least 30% and is made by cold forming.Type: GrantFiled: March 22, 1996Date of Patent: July 8, 1997Assignee: Kamax-Werke Rudolf Kellermann GmbH & Co. KGInventors: Klaus Damm, Walter Mages, Andreas Mohr
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Patent number: 5314281Abstract: A tolerance river for highly stressed riveted joints possessing a shank (3) whose length is harmonized with the two components to be joined, followed by a retaining piece (5) interacting with a retaining collar and provided with grooves (9) on its circumference. An enveloping jacket (12) which links the root diameters d1, d2 of the grooves, widenes conically from the head of the tolerance rivet toward its opposite free end. The grooves (9) on the retaining piece (5) have decreasing groove width a1, a2, etc., and increasing asymmetry of the groove profile. The first groove (9) located at the retaining piece (5) of the tolerance rivet that is located after the shank (3) in the direction toward its free end, possesses rounded shaping r3 in the area of its root diameter d1 whose area (13) is strain-hardened.Type: GrantFiled: May 13, 1993Date of Patent: May 24, 1994Assignee: Kamax-Werke Rudolf Kellermann GmbH & Co. KGInventors: Gerhard Turlach, Walter J. Mages
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Patent number: 4854794Abstract: A connector of the nut-and-bolt type with a bolt that has an external thread and/or a nut that has an internal thread. The connector has a locking device that provides a moment of friction that counteracts the unscrewing moment. The pitch of the external thread differs from that of the internal thread. The external thread is screwed far enough into the internal thread or vice versa for the moment of friction of the locking device to result, once the flank clearance between the two threads has been completely occupied and exceeded, from the forces that occur during resilient deformation.Type: GrantFiled: January 16, 1987Date of Patent: August 8, 1989Assignee: Kamax-Werke Rudolf Kellermann GmbH & Co. KGInventor: Klaus Oertel