Patents by Inventor Klaus Friedrich Grubert
Klaus Friedrich Grubert 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: 12173743Abstract: Wire thread insert consisting of a body with a plurality of helically wound windings, in which the plurality of helically wound windings comprises a first end winding and a second end winding which define the body at opposite axial ends, the first end winding has a first integral form-fitting means in a first end section and the second end winding has a second integral form-fitting means in a second end section, so that in an installed state of the wire thread insert a form-fit rotation-inhibiting connection with an adjacent component structure can be produced via the first and the second integral form-fitting means respectively.Type: GrantFiled: October 11, 2023Date of Patent: December 24, 2024Assignee: Böllhoff Verbindungstechnik GmbHInventors: Michael Stumpf, Marcel Purrio, Theodor Wenniges, Klaus-Friedrich Grubert, Alexej Butov, Anna-Katharina Schreiner
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Publication number: 20240035509Abstract: Wire thread insert consisting of a body with a plurality of helically wound windings, in which the plurality of helically wound windings comprises a first end winding and a second end winding which define the body at opposite axial ends, the first end winding has a first integral form-fitting means in a first end section and the second end winding has a second integral form-fitting means in a second end section, so that in an installed state of the wire thread insert a form-fit rotation-inhibiting connection with an adjacent component structure can be produced via the first and the second integral form-fitting means respectively.Type: ApplicationFiled: October 11, 2023Publication date: February 1, 2024Inventors: Michael Stumpf, Marcel Purrio, Theodor Wenniges, Klaus-Friedrich Grubert, Alexej Butov, Anna-Katharina Schreiner
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Patent number: 11821454Abstract: Wire thread insert consisting of a body with a plurality of helically wound windings, in which the plurality of helically wound windings comprises a first end winding and a second end winding which define the body at opposite axial ends, the first end winding has a first integral form-fitting means in a first end section and the second end winding has a second integral form-fitting means in a second end section, so that in an installed state of the wire thread insert a form-fit rotation-inhibiting connection with an adjacent component structure can be produced via the first and the second integral form-fitting means respectively.Type: GrantFiled: November 20, 2018Date of Patent: November 21, 2023Assignee: Böllhoff Verbindungstechnik GmbHInventors: Michael Stumpf, Marcel Purrio, Theodor Wenniges, Klaus-Friedrich Grubert, Alexej Butov, Anna-Katharina Schreiner
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Patent number: 11648651Abstract: The installation tool for a wire thread insert includes: a drive unit which provides a switchable rotation movement between a first and a second direction, a mandrel body with a drive section for rotating the mandrel body and with a drive section for rotating the mandrel body and with a thread section onto which the wire thread insert can be screwed or rotated on, an installation blade as well as a torque clutch consisting of a form-fit and force-fit clutch upper and lower parts engaging each other, of which the upper part is connected with the drive unit in a torque-proof manner and the lower part is connected with the mandrel body in a torque-proof manner. With a decoupled relative rotation between the clutch parts, caused by exceeding a limit torque between the clutch parts, relative movement between the mandrel body and the installation blade can be generated.Type: GrantFiled: December 21, 2018Date of Patent: May 16, 2023Assignee: Böllhoff Verbindungstechnik GmbHInventors: Andreas Marxkors, Holger Thommes, Tobias Beyer, Maximilian Leinkenjost, Klemens Rucha, Alexej Butov, Marcel Purrio, Hermann Zimmermann, Klaus-Friedrich Grubert, Sascha Zavarol, Franz Lutz
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Patent number: 11339822Abstract: An assembly locking device adapted to a normalized standard or fine thread of a thread shaft of a thread bolt, so that the locking device is positionable in a loss-proof manner on the thread of the thread shaft. The locking device includes: a cylindrical turn comprised of a plurality of helically wound turns, of a wire, a transition turn and adjacent to the second end of the helix is a blocking turn which has a negative pitch PB compared to the holding turn, so that at least an end portion of the blocking turn is elastically displaceable in the axial direction of the central longitudinal axis between an insertion position and a blocking position. The end portion of the blocking turn forms the second end of the helix and in the blocking position is arranged radially outwardly of the transition turn and/or the holding turn.Type: GrantFiled: March 3, 2021Date of Patent: May 24, 2022Assignee: Böllhoff Verbindungstechnik GmbHInventors: Klaus-Friedrich Grubert, André Röhr, Helmut Schäfer, Rayk Gutsche
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Publication number: 20210277929Abstract: An assembly locking device adapted to a normalized standard or fine thread of a thread shaft of a thread bolt, so that the locking device is positionable in a loss-proof manner on the thread of the thread shaft. The locking device includes: a cylindrical turn comprised of a plurality of helically wound turns, of a wire, a transition turn and adjacent to the second end of the helix is a blocking turn which has a negative pitch PB compared to the holding turn, so that at least an end portion of the blocking turn is elastically displaceable in the axial direction of the central longitudinal axis between an insertion position and a blocking position. The end portion of the blocking turn forms the second end of the helix and in the blocking position is arranged radially outwardly of the transition turn and/or the holding turn.Type: ApplicationFiled: March 3, 2021Publication date: September 9, 2021Inventors: Klaus-Friedrich Grubert, André Röhr, Helmut Schäfer, Rayk Gutsche
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Publication number: 20210060746Abstract: The installation tool for a wire thread insert includes: a drive unit which provides a switchable rotation movement between a first and a second direction, a mandrel body with a drive section for rotating the mandrel body and with a drive section for rotating the mandrel body and with a thread section onto which the wire thread insert can be screwed or rotated on, an installation blade as well as a torque clutch consisting of a form-fit and force-fit clutch upper and lower parts engaging each other, of which the upper part is connected with the drive unit in a torque-proof manner and the lower part is connected with the mandrel body in a torque-proof manner. With a decoupled relative rotation between the clutch parts, caused by exceeding a limit torque between the clutch parts, relative movement between the mandrel body and the installation blade can be generated.Type: ApplicationFiled: December 21, 2018Publication date: March 4, 2021Inventors: Andreas Marxkors, Holger Thommes, Tobias Beyer, Maximilian Leinkenjost, Klemens Rucha, Alexej Butov, Marcel Purrio, Hermann Zimmermann, Klaus-Friedrich Grubert, Sascha Zavarol, Franz Lutz
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Publication number: 20210033139Abstract: Wire thread insert consisting of a body with a plurality of helically wound windings, in which the plurality of helically wound windings comprises a first end winding and a second end winding which define the body at opposite axial ends, the first end winding has a first integral form-fitting means in a first end section and the second end winding has a second integral form-fitting means in a second end section, so that in an installed state of the wire thread insert a form-fit rotation-inhibiting connection with an adjacent component structure can be produced via the first and the second integral form-fitting means respectively.Type: ApplicationFiled: November 20, 2018Publication date: February 4, 2021Applicant: Böllhoff Verbindungstechnik GmbHInventors: Michael STUMPF, Marcel PURRIO, Theodor WENNIGES, Klaus-Friedrich GRUBERT, Alexej BUTOV, Anna-Katharina SCHREINER
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Patent number: 10005211Abstract: A moldable wire thread insert for reinforcing a screw-in opening of a component has the following characteristics: a cylindrical spiral made of a helically, wound wire, the neighboring coils of which are arranged such that a closed cylindrical spiral wall is present, while at least one end of the cylindrical spirals has a fastening flange, which extends radially outwards over the cylindrical spiral wall and with which the wire thread insert is anchorable in the component and/or one end of the cylindrical spiral is designed in a planar manner in order to form an even axial front surface of the cylindrical spiral.Type: GrantFiled: September 26, 2014Date of Patent: June 26, 2018Assignee: Böllhoff Verbindungstechnik GmbHInventors: Klaus Friedrich Grubert, Michael Stumpf, Xavier Sutz, Jochen Rintelmann
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Patent number: 9676128Abstract: A moldable wire thread insert for reinforcing a screw-in opening of a component has the following characteristics: a cylindrical spiral made of a helically, wound wire, the neighboring coils of which are arranged such that a closed cylindrical spiral wall is present, while at least one end of the cylindrical spirals has a fastening flange, which extends radially outwards over the cylindrical spiral wall and with which the wire thread insert is anchorable in the component and/or one end of the cylindrical spiral is designed in a planar manner in order to form an even axial front surface of the cylindrical spiral.Type: GrantFiled: September 26, 2014Date of Patent: June 13, 2017Assignee: Bollhoff Verbindungstechnik GmbHInventors: Klaus Friedrich Grubert, Michael Stumpf, Xavier Sutz, Jochen Rintelmann
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Publication number: 20150014884Abstract: A moldable wire thread insert for reinforcing a screw-in opening of a component has the following characteristics: a cylindrical spiral made of a helically, wound wire, the neighboring coils of which are arranged such that a closed cylindrical spiral wall is present, while at least one end of the cylindrical spirals has a fastening flange, which extends radially outwards over the cylindrical spiral wall and with which the wire thread insert is anchorable in the component and/or one end of the cylindrical spiral is designed in a planar manner in order to form an even axial front surface of the cylindrical spiral.Type: ApplicationFiled: September 26, 2014Publication date: January 15, 2015Applicant: Böllhoff Verbindungstechnik GmbHInventors: Klaus Friedrich Grubert, Michael Stumpf, Xavier Sutz, Jochen Rintelmann
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Publication number: 20150014466Abstract: A moldable wire thread insert for reinforcing a screw-in opening of a component has the following characteristics: a cylindrical spiral made of a helically, wound wire, the neighboring coils of which are arranged such that a closed cylindrical spiral wall is present, while at least one end of the cylindrical spirals has a fastening flange, which extends radially outwards over the cylindrical spiral wall and with which the wire thread insert is anchorable in the component and/or one end of the cylindrical spiral is designed in a planar manner in order to form an even axial front surface of the cylindrical spiral.Type: ApplicationFiled: September 26, 2014Publication date: January 15, 2015Applicant: Böllhoff Verbindungstechnik GmbHInventors: Klaus Friedrich Grubert, Michael Stumpf, Xavier Sutz, Jochen Rintelmann
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Patent number: 8931991Abstract: A moldable wire thread insert 1 for reinforcing a screw-in opening of a component has the following characteristics: a cylindrical spiral 20 made of a helically, wound wire 10, the neighboring coils 30 of which are arranged such that a closed cylindrical spiral wall 22, 24 is present, while at least one end of the cylindrical spirals 20 has a fastening flange 40, which extends radially outwards over the cylindrical spiral wall 22, 24 and with which the wire thread insert 1 is anchorable in the component and/or one end of the cylindrical spiral 20 is designed in a planar manner in order to form an even axial front surface of the cylindrical spiral 20.Type: GrantFiled: October 4, 2010Date of Patent: January 13, 2015Assignee: Böllhoff Verbindungstechnik GmbHInventors: Klaus Friedrich Grubert, Michael Stumpf, Xavier Sutz, Jochen Rintelmann
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Publication number: 20120315107Abstract: A moldable wire thread insert 1 for reinforcing a screw-in opening of a component has the following characteristics: a cylindrical spiral 20 made of a helically, wound wire 10, the neighboring coils 30 of which are arranged such that a closed cylindrical spiral wall 22, 24 is present, while at least one end of the cylindrical spirals 20 has a fastening flange 40, which extends radially outwards over the cylindrical spiral wall 22, 24 and with which the wire thread insert 1 is anchorable in the component and/or one end of the cylindrical spiral 20 is designed in a planar manner in order to form an even axial front surface of the cylindrical spiral 20.Type: ApplicationFiled: October 4, 2010Publication date: December 13, 2012Applicant: BOLLHOFF VERBINDUNGSTECHNIK GMBHInventors: Klaus Friedrich Grubert, MIchael Stumpf, Xavier Sutz, Jochen Rintelmann
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Patent number: 8033006Abstract: A mounting spindle with a thread that is formed adapted to the thread-protecting element, formed as a helical wire, serves as a mounting tool with the mounting method. The helical wire is fixed on the mounting spindle by frictional engagement, which is greater than the torque necessary for mounting the helical wire into the receiving threads. The mounting spindle with the helical wire fixed thereon is then threaded into the receiving threads. Then, the mounting spindle is removed from the helical wire by rotation opposite to the mounting direction. The frictional force is achieved by a reduced-diameter end section of the helical wire.Type: GrantFiled: August 30, 2007Date of Patent: October 11, 2011Assignee: Bofag Fasteners AGInventors: Francisco Tovar, Klaus-Friedrich Grubert
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Publication number: 20090317209Abstract: A method for mounting a screw and a thread-armoring element in a receiving thread of a component is described, in which the thread-armoring element is immobilized on the screw and the screw with the thread-armoring element immobilized on it is then screwed into the receiving thread of the component in one single work step. An arrangement comprising a screw and a thread-armoring element immobilized on it for carrying out said method is also described.Type: ApplicationFiled: September 5, 2007Publication date: December 24, 2009Inventors: Klaus Friedrich Grubert, Torsten Draht, Wulf Leitermann, Francisco Tovar
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Publication number: 20080277932Abstract: A screw connection comprising a wire thread insert 8 which is inserted between a female thread M of a workpiece 4 and a male thread B of a screw 6 and which consists of a helically coiled wire thread member having a male thread adjacent internal thread 10 and a female thread adjacent external thread 12, characterized in that the profile angles ?B, ?M of the internal and external threads 10, 12 of the wire thread insert 8 are smaller than the respective profile angles ?B, ?M of the male thread B and, respectively, the female thread M such that when the screw connection is loaded by a predetermined biasing force KV the load flanks of the internal and external threads 10, 12 of the wire thread insert 8 engage the associated load flanks of the male and female threads B, M in full contact relationship.Type: ApplicationFiled: June 15, 2005Publication date: November 13, 2008Inventors: Klaus Friedrich Grubert, Thomas Maciejowski
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Patent number: 7441980Abstract: A device for joining a first component A and a second component B while leaving a joining gap SP includes a bolt 4 and a compensating coil 2 for compensating tolerances of the joining gap. The compensating coil is adapted to be fixed to the bolt 4 by frictional engagement means and/or releasable positive engagement means. The dimensions of the compensating coil are adapted to a helical rim hole portion 6 of the first component A such that actuation of the bolt 4 causes the compensating coil to rotate through the helical rim hole portion until it fills the joining gap for the purpose of tolerance compensation, and the frictional engagement means and/or releasable positive engagement means is overcome by further actuation of the bolt 4 so that the bolt can be screwed into a threaded hole of the second component B to join the two components.Type: GrantFiled: October 10, 2006Date of Patent: October 28, 2008Assignee: Bollhoff Verbindungstechnik GmbHInventors: Wulf Leitermann, Klaus Friedrich Grubert
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Publication number: 20080092357Abstract: A mounting spindle with a thread that is formed adapted to the thread-protecting element, formed as a helical wire, serves as a mounting tool with the mounting method. The helical wire is fixed on the mounting spindle by frictional engagement, which is greater than the torque necessary for mounting the helical wire into the receiving threads. The mounting spindle with the helical wire fixed thereon is then threaded into the receiving threads. Then, the mounting spindle is removed from the helical wire by rotation opposite to the mounting direction. The frictional force is achieved by a reduced-diameter end section of the helical wire.Type: ApplicationFiled: August 30, 2007Publication date: April 24, 2008Inventors: Francisco TOVAR, Klaus-Friedrich Grubert
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Patent number: 7025552Abstract: An assembly for automatically compensating variations of the spacing between first and second structural members due to manufacturing and/or mounting tolerances. The assembly comprises a mounting bolt, a base element, and an adjustment sleeve. The adjustment sleeve has a drive portion adapted to be engaged with the nut by frictional drag and rotatable relative to said mounting bolt when said frictional drag has been overcome. The drive portion comprises an internal annular plastic portion which projects from the wall of the adjustment sleeve radially outwards sufficiently so as to frictionally engage the threads of the mounting bolt to provide for said frictional drag.Type: GrantFiled: September 2, 2004Date of Patent: April 11, 2006Assignee: Bollhoff Verbindungstechnik GmbHInventors: Klaus Friedrich Grubert, Uwe Kirchhecker, Frank Kassing