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公开(公告)号：US10688899B2
公开(公告)日：2020-06-23
申请号：US15727757
申请日：2017-10-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Wonhee M. Kim , Amberlee S. Haselhuhn , Richard J. Skurkis , Michael J. Walker , Ian J. Sutherland , Paul W. Alexander , Nilesh D. Mankame
Abstract: An occupant support structure and a method of customizing an occupant support structure. The occupant support structure may comprise a base and a reconfigurable cushion carried by the base. The reconfigurable cushion may include an occupant support surface and a bladder. The bladder may include an outer wall that defines an inner cavity underlying the occupant support surface and two or more overlapping material layers disposed within the cavity. The overlapping material layers may be adapted to selectively transition from a compliant state to a rigid state and vice versa by selective control of a pressure condition across the outer wall of the bladder to reconfigure or conform the occupant support surface of the cushion to a contour of a portion of an occupant supported by the cushion.
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公开(公告)号：US20190106030A1
公开(公告)日：2019-04-11
申请号：US15727757
申请日：2017-10-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Wonhee M. Kim , Amberlee S. Haselhuhn , Richard J. Skurkis , Michael J . Walker , Ian J. Sutherland , Paul W. Alexander , Nilesh D. Mankame
IPC: B60N2/44
Abstract: An occupant support structure and a method of customizing an occupant support structure. The occupant support structure may comprise a base and a reconfigurable cushion carried by the base. The reconfigurable cushion may include an occupant support surface and a bladder. The bladder may include an outer wall that defines an inner cavity underlying the occupant support surface and two or more overlapping material layers disposed within the cavity. The overlapping material layers may be adapted to selectively transition from a compliant state to a rigid state and vice versa by selective control of a pressure condition across the outer wall of the bladder to reconfigure or conform the occupant support surface of the cushion to a contour of a portion of an occupant supported by the cushion.
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公开(公告)号：US20190076955A1
公开(公告)日：2019-03-14
申请号：US16181809
申请日：2018-11-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Hui-ping Wang , David R. Sigler , Blair E. Carlson , Amberlee S. Haselhuhn , Michael J. Karagoulis
Abstract: A welding electrode includes a weld face that has a convex base weld face surface and a plurality of ringed ridges that are radially spaced apart on the base weld face surface and surround a central weld face axis. The plurality of ringed ridges including an innermost ringed ridge and an outermost ringed ridge. The innermost ringed ridge is located closest to the central weld face axis and rises above a central portion of the base weld face surface, and the outermost ringed ridge is located farthest from the central weld face axis and rises above an outer peripheral portion of the base weld face surface. At least one of the plurality of ringed ridges is a discontinuous ringed ridge.
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公开(公告)号：US11524358B2
公开(公告)日：2022-12-13
申请号：US16183453
申请日：2018-11-07
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： David R. Sigler , Amberlee S. Haselhuhn , Blair E. Carlson , Michael J. Karagoulis
IPC: B23K11/11 , F16B5/08 , B23K11/20 , B23K103/10 , B23K103/04
Abstract: A method of resistance spot welding a workpiece stack-up that includes a steel workpiece and an aluminum workpiece includes adhering an aluminum patch to faying surface of a steel workpiece, positioning an aluminum workpiece over the aluminum patch and the steel workpiece to assemble a workpiece stack-up, passing an electric current through the workpiece stack-up to create a molten aluminum weld pool, and terminating passage of the electric current to solidify the molten aluminum weld pool into a weld joint that bonds the steel and aluminum workpieces together through the aluminum patch. A workpiece stack-up having a weld joint that bonds an aluminum workpiece and a steel workpiece together through an aluminum patch is also disclosed. The weld joint establishes a bonding interface with the faying surface of the steel workpiece, and the aluminum patch is adhered to the faying surface of the steel workpiece around the weld joint.
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Patent Agency Ranking
公开(公告)号：US11471972B2
公开(公告)日：2022-10-18
申请号：US16723162
申请日：2019-12-20
Applicant: GM Global Technology Operations LLC
Inventor： Amberlee S. Haselhuhn , David R Sigler , Robert T Szymanski
IPC: B23K11/11 , B23K11/20 , B23K11/18 , B23K103/20
Abstract: A combined stackup apparatus with a perforated interlayer for resistance spot welding is provided. The apparatus comprises a first metal sheet of a first material and a second metal sheet of a second material. The apparatus further comprising a perforated interlayer disposed between the first metal layer and the second metal layer. The perforated interlayer is made of one of the first and second materials. The perforated interlayer has a plurality of perforations formed therethrough. Each perforation has a perforation size of between about 0.1 mm and about 3 mm.
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公开(公告)号：US10981244B2
公开(公告)日：2021-04-20
申请号：US16181809
申请日：2018-11-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Hui-ping Wang , David R. Sigler , Blair E. Carlson , Amberlee S. Haselhuhn , Michael J. Karagoulis
IPC: B23K11/30 , B23K11/11 , B23K11/20 , B23K11/16 , B23K11/18 , B23K103/20 , B23K101/00 , B23K103/04 , B23K101/18
Abstract: A welding electrode includes a weld face that has a convex base weld face surface and a plurality of ringed ridges that are radially spaced apart on the base weld face surface and surround a central weld face axis. The plurality of ringed ridges including an innermost ringed ridge and an outermost ringed ridge. The innermost ringed ridge is located closest to the central weld face axis and rises above a central portion of the base weld face surface, and the outermost ringed ridge is located farthest from the central weld face axis and rises above an outer peripheral portion of the base weld face surface. At least one of the plurality of ringed ridges is a discontinuous ringed ridge.
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17.发明授权公开(公告)号：US10857618B2
公开(公告)日：2020-12-08
申请号：US15907996
申请日：2018-02-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： David R. Sigler , Amberlee S. Haselhuhn , Blair E. Carlson
IPC: B23K11/11 , B23K11/20 , B23K103/20
Abstract: A method of resistance spot welding a workpiece stack-up that includes a steel workpiece and one or more aluminum workpieces involves locally stiffening the steel workpiece to resist steel workpiece deformation. The local stiffening of the steel workpiece is achieved by incorporating an electrode receiving wall into the steel workpiece along with one or more integral elevated portions of the steel workpiece that are disposed at least partially around the electrode receiving wall. The electrode receiving wall includes an electrode-contact surface and an opposed interface contact surface. During welding, a weld face of one welding electrode is pressed against the electrode-contact surface of the electrode receiving wall of the steel workpiece, and electric current is momentarily passed between that welding electrode and another welding electrode on the opposite side of the workpiece stack-up to form a weld joint that bonds to the interface contact surface of the electrode receiving wall.
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公开(公告)号：US10597917B2
公开(公告)日：2020-03-24
申请号：US15728034
申请日：2017-10-09
Applicant: GM Global Technology Operations LLC
Inventor： Ian J. Sutherland , Michael J. Walker , Wonhee M. Kim , Paul W. Alexander , Richard J. Skurkis , Amberlee S. Haselhuhn , Xiujie Gao
Abstract: A stretchable adjustable-stiffness assembly includes a casing and first and second friction layers. The casing can be fluidly sealed and includes an interior compartment containing a fluid. The fluid can shift between a first interior pressure and a second interior pressure less than the first interior pressure and an exterior pressure. The first and second friction layers are disposed within the interior compartment. The assembly can shift between relaxed and fixed configurations. In the relaxed configuration, the fluid has the first interior pressure, the casing is stretchable between a first dimension and a second dimension greater than the first dimension, and the assembly has a first stiffness. In the fixed configuration, the first fluid has the second interior pressure, the casing length is fixed, the first and second friction layers are engaged, and the assembly has a second stiffness greater than the first stiffness.
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19.发明申请公开(公告)号：US20190262930A1
公开(公告)日：2019-08-29
申请号：US15907996
申请日：2018-02-28
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： David R. Sigler , Amberlee S. Haselhuhn , Blair E. Carlson
Abstract: A method of resistance spot welding a workpiece stack-up that includes a steel workpiece and one or more aluminum workpieces involves locally stiffening the steel workpiece to resist steel workpiece deformation. The local stiffening of the steel workpiece is achieved by incorporating an electrode receiving wall into the steel workpiece along with one or more integral elevated portions of the steel workpiece that are disposed at least partially around the electrode receiving wall. The electrode receiving wall includes an electrode-contact surface and an opposed interface contact surface. During welding, a weld face of one welding electrode is pressed against the electrode-contact surface of the electrode receiving wall of the steel workpiece, and electric current is momentarily passed between that welding electrode and another welding electrode on the opposite side of the workpiece stack-up to form a weld joint that bonds to the interface contact surface of the electrode receiving wall.
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