Patents by Inventor Lothar Schaumann
Lothar Schaumann 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: 11339824Abstract: A ball joint including a ball stud which has a spherical portion, two bearing shells that are arranged on the spherical portion such that there is a small gap between the two bearing shells, and a housing that is made from plastic in one piece and encloses the two bearing shells such that the two bearing shells are urged against the spherical portion by the housing.Type: GrantFiled: February 22, 2019Date of Patent: May 24, 2022Assignee: THK RHYTHM AUTOMOTOVE GMBHInventors: Lothar Schaumann, Harald Walter
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Patent number: 11286975Abstract: A ball joint includes a carrier part and a hollow ball which is a component separate from the carrier part and is fixed on the carrier part.Type: GrantFiled: April 22, 2021Date of Patent: March 29, 2022Assignee: THK Rhythm Automotive GmbHInventors: Lothar Schaumann, Harald Walter
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Publication number: 20210332844Abstract: A ball joint includes a carrier part and a hollow ball which is a component separate from the carrier part and is fixed on the carrier part.Type: ApplicationFiled: April 22, 2021Publication date: October 28, 2021Inventors: Lothar SCHAUMANN, Harald WALTER
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Publication number: 20210131484Abstract: The invention relates to a ball joint (5) including a ball stud (10) which has a spherical portion (12), two bearing shells (20) that are arranged on the spherical portion (12) such that there is a small gap (30) between them, and a housing (40) that is made from plastic in one piece and encloses the two bearing shells (20) such that they are urged against the spherical portion (12) by the housing (40).Type: ApplicationFiled: February 22, 2019Publication date: May 6, 2021Inventors: Lothar SCHAUMANN, Harald WALTER
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Patent number: 10087983Abstract: This invention relates to a joint housing (10) of a ball joint (12), comprising a sheet-metal part (14) for accommodating a ball head (16), which is substantially rotationally symmetrical with respect to a joint axis (A) and includes a circumferential wall portion (18), wherein the circumferential wall portion (18) includes a housing opening (26) at an axial end (24), through which a joint pin (28) can extend, wherein the sheet-metal part (14) is formed with two layers at this axial end (24) of the circumferential wall portion (18). Furthermore, the invention also relates to a method for mounting such joint housing (10) on a carrier element (34).Type: GrantFiled: August 1, 2016Date of Patent: October 2, 2018Assignee: THK RHYTIIM AUTOMOTIVE GmbHInventors: Uwe Forthaus, Lothar Schaumann, Harald Walter
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Patent number: 9573615Abstract: The invention relates to a rack-and-pinion steering, including a toothed rack having a longitudinal axis, a toothed rack housing in which the toothed rack is guided for axial displacement between two end stops, and an end stop damping assembly which includes at least one stop ring and at least one elastic compression body, the compression body surrounding the toothed rack, and its spring/damping section having an axial length in a non-loaded condition. The stop ring has a continuously surrounding axial guide extension which is located radially inside in relation to the compression body and which has an axial length that is smaller than the axial length of the spring/damping section of the compression body.Type: GrantFiled: May 3, 2010Date of Patent: February 21, 2017Assignee: TRW AUTOMOTIVE GMBHInventor: Lothar Schaumann
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Publication number: 20170030402Abstract: This invention relates to a joint housing (10) of a ball joint (12), comprising a sheet-metal part (14) for accommodating a ball head (16), which is substantially rotationally symmetrical with respect to a joint axis (A) and includes a circumferential wall portion (18), wherein the circumferential wall portion (18) includes a housing opening (26) at an axial end (24), through which a joint pin (28) can extend, wherein the sheet-metal part (14) is formed with two layers at this axial end (24) of the circumferential wall portion (18). Furthermore, the invention also relates to a method for mounting such joint housing (10) on a carrier element (34).Type: ApplicationFiled: August 1, 2016Publication date: February 2, 2017Applicant: THK RHYTHM AUTOMOTIVE GmbHInventors: Uwe Forthaus, Lothar Schaumann, Harald Walter
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Patent number: 9518602Abstract: A ball joint which comprises a joint housing, a bearing shell received in the joint housing, and a ball stud having a ball head arranged for pivoting movement in the bearing shell. The ball head is prestressed by a spring system substantially in the direction of a longitudinal axis of the ball stud against the joint housing. The spring system is composed of spring elements connected in parallel and/or in series, at least one spring element of the spring system being made of a polymer material or of an elastomer material.Type: GrantFiled: January 19, 2011Date of Patent: December 13, 2016Assignee: THK RHYTHM AUTOMOTIVE GmbHInventors: Uwe Forthaus, Vat Phiaphakdy, Lothar Schaumann, Harald Walter, Dagmar Woelki
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Patent number: 9429186Abstract: A joint housing of a ball joint comprises a sheet-metal part for accommodating a ball head, which is substantially rotationally symmetrical with respect to a joint axis and includes a circumferential wall portion, wherein the circumferential wall portion includes a housing opening at an axial end, through which a joint pin can extend, wherein the sheet-metal part is formed with two layers at this axial end of the circumferential wall portion.Type: GrantFiled: July 12, 2012Date of Patent: August 30, 2016Assignee: THK RHYTHM AUTOMOTIVE GmbHInventors: Uwe Forthaus, Lothar Schaumann, Harald Walter
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Publication number: 20140212205Abstract: A joint housing of a ball joint comprises a sheet-metal part for accommodating a ball head, which is substantially rotationally symmetrical with respect to a joint axis and includes a circumferential wall portion, wherein the circumferential wall portion includes a housing opening at an axial end, through which a joint pin can extend, wherein the sheet-metal part is formed with two layers at this axial end of the circumferential wall portion.Type: ApplicationFiled: July 12, 2012Publication date: July 31, 2014Applicant: TRW AUTOMOTIVE GmbHInventors: Uwe Forthaus, Lothar Schaumann, Harald Walter
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Patent number: 8734044Abstract: A ball joint, particularly a radial ball joint, includes a housing, a bearing shell which is arranged in the housing, and a ball pin having a ball head which is arranged in the bearing shell, the housing having a mounting opening to receive the bearing shell and the ball head, the mounting opening being closed by a housing cover which is fastened to the housing. The bearing shell is deformed by the ball head and the housing cover such that the restoring force resulting from the deformation urges the ball head away from the housing cover and prestresses it against the housing.Type: GrantFiled: December 11, 2007Date of Patent: May 27, 2014Assignee: TRW Automotive GmbHInventor: Lothar Schaumann
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Publication number: 20120301214Abstract: The invention relates to a ball joint which comprises a joint housing, a bearing shell received in the joint housing, and a ball stud having a ball head arranged for pivoting movement in the bearing shell. The ball head is prestressed by a spring system substantially in the direction of a longitudinal axis of the ball stud against the joint housing. The spring system is composed of spring elements connected in parallel and/or in series, at least one spring element of the spring system being made of a polymer material or of an elastomer material.Type: ApplicationFiled: January 19, 2011Publication date: November 29, 2012Applicant: TRW AUTOMOTIVE GMBHInventors: Uwe Forthaus, Vat Phiaphakdy, Lothar Schaumann, Harald Walter, Dagmar Woelki
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Publication number: 20120111132Abstract: The invention relates to a rack-and-pinion steering, including a toothed rack having a longitudinal axis, a toothed rack housing in which the toothed rack is guided for axial displacement between two end stops, and an end stop damping assembly which includes at least one stop ring and at least one elastic compression body, the compression body surrounding the toothed rack, and its spring/damping section having an axial length in a non-loaded condition. The stop ring has a continuously surrounding axial guide extension which is located radially inside in relation to the compression body and which has an axial length that is smaller than the axial length of the spring/damping section of the compression body.Type: ApplicationFiled: May 3, 2010Publication date: May 10, 2012Applicant: TRW AUTOMOTIVE GMBHInventor: Lothar Schaumann
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Patent number: 7785029Abstract: A ball joint, particularly an axial joint, having a housing, a bearing shell which is arranged in the housing, and a ball pin with a ball head which is arranged in the bearing shell, is characterized in that the bearing shell is bent open elastically by the ball head so that the restoring force resulting from its deformation applies a prestress onto the ball head which attempts to press the latter out of the housing.Type: GrantFiled: February 14, 2007Date of Patent: August 31, 2010Assignee: TRW Automotive GmbHInventor: Lothar Schaumann
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Publication number: 20100092235Abstract: The invention relates to a ball joint, particularly a radial ball joint, including a housing, a bearing shell which is arranged in the housing, and a ball pin having a ball head which is arranged in the bearing shell, the housing having a mounting opening to receive the bearing shell and the ball head, the mounting opening being closed by a housing cover which is fastened to the housing. The bearing shell is deformed by the ball head and the housing cover such that the restoring force resulting from the deformation urges the ball head away from the housing cover and prestresses it against the housing.Type: ApplicationFiled: December 11, 2007Publication date: April 15, 2010Inventor: Lothar Schaumann
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Publication number: 20090154989Abstract: A ball joint, particularly an axial joint, having a housing, a bearing shell which is arranged in the housing, and a ball pin with a ball head which is arranged in the bearing shell, is characterized in that the bearing shell is bent open elastically by the ball head so that the restoring force resulting from its deformation applies a prestress onto the ball head which attempts to press the latter out of the housing.Type: ApplicationFiled: February 14, 2007Publication date: June 18, 2009Inventor: Lothar Schaumann