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公开(公告)号：US20240326718A1
公开(公告)日：2024-10-03
申请号：US18128695
申请日：2023-03-30
Inventor： Phouvadol P. Khouphongsy , Umesh N. Gandhi , Danil V. Prokhorov , Yuyang Song , Mizuho Takayama
CPC classification number: B60R13/0212 , B60R21/04 , B60R2021/01013 , B60R2021/0442
Abstract: Systems, methods, and other embodiments described herein relate to vehicle headliners. In one embodiment, a method includes detecting, with a controller connected to a first impact feature of a headliner of a vehicle, a physical contact with the first impact feature with the first impact feature having a first bending strength prior to the physical contact. The controller subsequently activates the first impact feature to transition the first impact feature from the first bending strength to a second bending strength in response to the detected physical contact.
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公开(公告)号：US11732735B2
公开(公告)日：2023-08-22
申请号：US17479079
申请日：2021-09-20
Inventor： Yuyang Song , Ryohei Tsuruta , Umesh N. Gandhi
CPC classification number: F15B15/08 , B25J9/142 , B25J9/1005
Abstract: A soft actuator includes an inflation chamber. The inflation chamber has a first end and a second end opposite the first end. The inflation chamber is inflatable during an inflation stage, in which the second end rotates toward the first end about a folding axis, and is operable to be loaded during an inflated stage, in which the inflation chamber is inflated. The soft actuator also includes a variable-stiffness hinge located between the first end and the second end along the folding axis. The variable-stiffness hinge has a decreased stiffness in the inflation stage and an increased stiffness in the inflated stage.
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公开(公告)号：US11731721B2
公开(公告)日：2023-08-22
申请号：US17956247
申请日：2022-09-29
Inventor： Paul A. Gilmore , Umesh N. Gandhi , Ryohei Tsuruta , Brian J. Pinkelman
IPC: B62J1/02
CPC classification number: B62J1/02
Abstract: A saddle for a bicycle can be configured to provide improved vibration isolation performance. The saddle can include a saddle body. The saddle can include a plurality of isolators. The plurality of isolators can be operatively connected to the saddle body. Each of the plurality of isolators can include a stack of a plurality of conical springs. The stack of the plurality of conical springs does not include a central shaft.
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公开(公告)号：US20230219646A1
公开(公告)日：2023-07-13
申请号：US18161611
申请日：2023-01-30
Inventor： Paul A. Gilmore , Christian Arthur Trager , Umesh N. Gandhi , Ryohei Tsuruta , Michael Paul Rowe
IPC: B62J1/06
CPC classification number: B62J1/065
Abstract: A vibration isolator cartridge can be configured to exhibit a non-linear stiffness profile. The non-linear stiffness profile including a region of quasi-zero stiffness. The vibration isolator cartridge can include a housing. The vibration isolator cartridge can include a plunger. The plunger can be configured to be depressed toward a distal end portion of the housing. The vibration isolator cartridge can include a plurality of spring members operatively positioned within the housing between the plunger and the distal end portion of the housing. The plurality of spring elements can be arranged in a stack. The vibration isolator cartridge can be used to provide improved vibration isolation performance in various applications, such as a bicycle saddle.
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公开(公告)号：US20230191953A1
公开(公告)日：2023-06-22
申请号：US17553990
申请日：2021-12-17
Inventor： Shardul Singh Panwar , Umesh N. Gandhi , Brian J. Pinkelman , Ryohei Tsuruta , Mark A. Gummin , Eric D. Smith , Mark E. Smith
CPC classification number: B60N2/0244 , B60N2/501 , B60N2002/026 , B60N2002/0268
Abstract: An actuator includes a first hinge assembly and a second hinge assembly. The actuator has a first dimension and a second dimension, the first dimension extending through the hinge assemblies. An outer skin is connected to the hinge assemblies. The outer skin defines a first actuator side, a second actuator side residing opposite the first actuator side, and a cavity. Shape-memory material (SMM) members are connected to the opposed hinge assemblies. At least one spring member is positioned within the cavity and structured to exert forces on the opposed first and second actuator sides tending to urge the sides away from each other along the second dimension. When an input is provided to the SMM members, the SMM members change their configurations and cause the actuator to morph into an activated configuration in which the first dimension decreases and the second dimension changes inversely to the first dimension.
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Patent Agency Ranking
公开(公告)号：US20230120436A1
公开(公告)日：2023-04-20
申请号：US17506111
申请日：2021-10-20
Inventor： Ryohei Tsuruta , Brian J. Pinkelman , Umesh N. Gandhi , Paul A. Gilmore
Abstract: A vehicle seat can be configured to provide support to a vehicle occupant in conditions when lateral acceleration is experienced. Shape memory material members can be operatively positioned with respect to a seat portion of the vehicle seat. The shape memory material members can be selectively activated by an activation input. When activated, the shape memory material members can engage a seat pan so as to cause the seat pan to tilt in a respective lateral direction. As a result, a seat cushion supported by the seat pan can also tilt in the respective lateral direction. The seat cushion can be tilted in a lateral direction that is opposite to the direction of the lateral acceleration. Thus, the effects of lateral acceleration felt by a seat occupant can be reduced. The shape memory material members can be selectively activated based on vehicle speed, steering angle, and/or lateral acceleration.
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公开(公告)号：US11618548B2
公开(公告)日：2023-04-04
申请号：US17165186
申请日：2021-02-02
Inventor： Umesh N. Gandhi , Ryohei Tsuruta
Abstract: A reinforced, foldable component for an aircraft is provided, configured to stabilize a high frequency aeroelastic fluttering movement. The reinforced component may include a frame structure defining at least one air chamber, and a plurality of sealed compartments. A shear thickening fluid is disposed in at least one of the sealed compartments, exhibiting a decreasing viscosity responsive to an impact force. The frame structure may define one of an inflatable wing structure, a fairing structure, an aileron structure, and a stabilizer structure, and the like. The foldable component may include an exterior layer with an exterior surface exposed to an external environment and an interior layer adjacent the at least one air chamber, wherein the plurality of sealed compartments are disposed between the exterior layer and the interior layer. The exterior layer or the interior layer may include an impact-resistant fabric layer including a shear thickening material.
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公开(公告)号：US11591076B2
公开(公告)日：2023-02-28
申请号：US16453510
申请日：2019-06-26
Inventor： Yuyang Song , Umesh N. Gandhi , Danil V. Prokhorov
Abstract: In one embodiment, a drone is provided with several inflatable tubes that each connect a propeller component to a body of the drone. In order to increase the handling of the drone, a patch is placed on the top surface of each inflatable tube that includes some number of shape memory alloy wires. The shape memory alloy wires shrink and become rigid when an electric current is applied to them. The optimal locations on each tube to place the patches, and the shape of the patches, is determined using a topology optimization. Later, the wires in the patches can be selectively activated or deactivated by an operating entity to provide an additional means to control the drone. Additionally, the drone is equipped with several landing arms which may include a shape memory alloy torsion coil spring to help the arm deployment during landing.
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公开(公告)号：US11460010B1
公开(公告)日：2022-10-04
申请号：US17216951
申请日：2021-03-30
Inventor： Ryohei Tsuruta , Brian J. Pinkelman , Umesh N. Gandhi , Paul A. Gilmore , Mark E. Smith , Eric D. Smith , Shardul Singh Panwar
IPC: F03G7/06
Abstract: A remote actuator includes one or more bi-stable strips with at least one shape memory composite (SMC) spring connected to each bi-stable strip. The SMC spring includes a thermoplastic and an electrical and/or thermal conductor for transforming the length of the SMC spring upon heating. The contraction of the SMC spring transforms the bi-stable strip from its coiled stable state to its elongated stable state. The displacement of the SMC spring can be amplified by a simple machine included in the remote actuator. The remote actuator can include a shape memory alloy (SMA) strip for transforming the bi-stable strip from its elongated stable state to it curved stable state upon heating. Heating can be by Joule heating or from an adjacent heat source.
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公开(公告)号：US10960793B2
公开(公告)日：2021-03-30
申请号：US16293997
申请日：2019-03-06
Inventor： Umesh N. Gandhi , Brian J. Pinkelman , Ryohei Tsuruta , Mark A. Gummin
Abstract: Actuators can be used in controlling a seat surface of a vehicle seat. The actuators can have an outer skin in connection with a hinge assemblies. The actuators can include a shape-memory material (SMM) member operatively connected to the hinge assemblies. The SMM member can be a shape-memory alloy (SMA) wire. The SMM member can change from a first configuration to the second configuration in response to an activation input, such as heat. The input can be delivered to the SMM member upon detecting an activation condition, such as detection of lateral acceleration. The actuators are operatively positioned relative to a seat surface such that, when the SMM member changes configuration, actuator causes the seat surface to morph.
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