Patents by Inventor Umesh N. Gandhi
Umesh N. Gandhi 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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Publication number: 20200318651Abstract: Fan performance can be adjusted based on real-time operating conditions. The fan can include a plurality of blades operatively connected to a rotor. The blades can extend radially outward from the rotor to a tip. A housing can substantially surround the fan. The housing can have an inner peripheral surface that defines an inner diameter. The inner peripheral surface can include a first portion and a second portion downstream of the first portion. The first portion can be adjacently upstream of the plurality of blades, and the second portion can be substantially aligned with the plurality of blades. A plurality of actuators being distributed in a circumferential direction of the housing. The actuators can be operatively positioned to cause the inner diameter of the first portion or the second portion to be altered. As a result, one or more performance characteristics of the fan can be changed.Type: ApplicationFiled: April 4, 2019Publication date: October 8, 2020Inventors: Shailesh N. Joshi, Ercan Mehmet Dede, Umesh N. Gandhi
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Publication number: 20200307416Abstract: 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.Type: ApplicationFiled: March 28, 2019Publication date: October 1, 2020Inventors: Umesh N. Gandhi, Brian J. Pinkelman, Ryohei Tsuruta, Mark A. Gummin
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Publication number: 20200298732Abstract: A vehicle seat can be configured to selectively provide support to a vehicle occupant in conditions when lateral acceleration is experienced. An actuator can be located within the vehicle seat. When activated, the actuator cause a portion of the seat to morph into an activated configuration. The actuator can be activated based on vehicle speed, steering angle, and/or lateral acceleration. The actuator can include end members connected by a shape memory material connecting member. Actuator blocks with sliding surfaces can be located between the end members. The actuator can be configured such that, in response to an activation input, the shape memory material connecting member contracts, which draws the end members toward each other and causes corresponding sliding surfaces of the plurality of actuator blocks to engage and slide relative to each other. In this way, the actuator morphs into an activated configuration in which its overall height increases.Type: ApplicationFiled: March 22, 2019Publication date: September 24, 2020Inventors: Umesh N. Gandhi, Brian J. Pinkelman, Ryohei Tsuruta, Mark A. Gummin
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Publication number: 20200282878Abstract: 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.Type: ApplicationFiled: March 6, 2019Publication date: September 10, 2020Inventors: Umesh N. Gandhi, Brian J. Pinkelman, Ryohei Tsuruta, Mark A. Gummin
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Publication number: 20200263980Abstract: Systems, methods, and other implementations described herein relate to a manner of detecting kinking or other bend on a bendable structure. In one implementation, a bendable structure is configured to kink at different locations. First and second sensors surface-mounted antiparallel along the bendable structure have bending responses that increase with increasing amounts of bending, and that are increasingly sensitive along their lengths. The bending responses from first and second sensors are received at a first time and a second time subsequent to the first time. The formation of a kink is identified in response to identifying that the bending responses are indicative of unkinked bending at the first time and indicative of kinked bending at the second time. In response to identifying the formation of the kink, the location of the kink is identified based on the bending responses at the first time.Type: ApplicationFiled: February 20, 2019Publication date: August 20, 2020Inventors: Umesh N. Gandhi, Taewoo Nam, Yuyang Song, Ryohei Tsuruta
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Publication number: 20200247274Abstract: A vehicle seat can be configured to selectively provide support to a vehicle occupant in conditions when lateral acceleration is experienced. An actuator can be located within the vehicle seat. When activated, the actuator cause a portion of the seat to morph into an activated configuration. The actuator can be activated based on vehicle speed, steering angle, and/or lateral acceleration. The actuator can include a main body member, a first end member pivotably connected to a first end region of the main body member, and a second end member pivotably connected to a second end region of the main body member. The actuator can include shape memory material connecting members. The actuator can be configured such that, in response to an activation input, the shape memory material connecting members contract, causing the first and second end members pivot, which causes the actuator to morph into an activated configuration.Type: ApplicationFiled: January 31, 2019Publication date: August 6, 2020Inventors: Umesh N. Gandhi, Brian J. Pinkelman, Ryohei Tsuruta, Mark A. Gummin
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Publication number: 20200238629Abstract: Methods for microwave melting of fiber mixtures to form composite materials include placing the fiber mixture in a receptacle located in a microwave oven. The methods further include microwave heating the mixture, causing a heat activated compression mechanism to automatically increase compressive force on the mixture, thereby eliminating air and void volumes. The heat activated compression mechanism can include a shape memory alloy wire connecting first and second compression brackets, or one or more ceramic blocks configured to increase in volume and thereby increase compression on the mixture.Type: ApplicationFiled: January 24, 2019Publication date: July 30, 2020Inventors: Umesh N. Gandhi, Michael Paul Rowe, Yuyang Song
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Publication number: 20200238854Abstract: A vehicle seat can be configured to selectively provide support to a vehicle occupant in conditions when lateral acceleration is experienced. An actuator can be located within the vehicle seat. When activated, the actuator cause a portion of the seat to morph into an activated configuration. The actuator can be activated based on vehicle speed, steering angle, and/or lateral acceleration. The actuator can include a bladder containing a dielectric fluid. A first and second conductor can be operatively positioned on opposite portions of the bladder. When electrical energy is supplied to the first and second conductors, they can have opposite charges. As a result, the first and second conductors can be electrostatically attracted toward each other to cause at least a portion of the dielectric fluid to be displaced to an outer peripheral region of the bladder, which bulges as a result and increases an overall height of the actuator.Type: ApplicationFiled: January 30, 2019Publication date: July 30, 2020Inventors: Umesh N. Gandhi, Brian J. Pinkelman, Ryohei Tsuruta
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Patent number: 10723447Abstract: An aerocar with a dual mode suspension system configured to operate in a roadable mode and a flight mode. The aerocar may include a front suspension assembly having a front axle, and a rear suspension assembly having a rear axle. A conduit system provides a hydraulic fluid in fluid communication between the front suspension assembly and the rear suspension assembly. An auxiliary hydraulic fluid reservoir is provided in fluid communication with the conduit system, and configured to selectively maintain or interrupt fluid communication between the front suspension assembly and the rear suspension assembly to adjust damping of the front suspension assembly. A controller may be provided, configured to direct the flow of hydraulic fluid from the rear suspension assembly to the front suspension assembly, for example, when a stroke of the rear suspension exceeds a predetermined value during landing.Type: GrantFiled: March 8, 2017Date of Patent: July 28, 2020Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Umesh N. Gandhi, Matthew C. Clontz
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Publication number: 20200223325Abstract: A shape memory alloy (SMA) controlled hinge assembly is provided, including assemblies and combinations for adjusting a shape or position of an occupant support component, such as a vehicle seat support component or other seating component. The assembly includes an occupant support component and a hinge assembly configured to adjust a shape or position of at least a portion of the occupant support component. The hinge assembly includes a stationary plate and a movable plate rotatable relative to the base plate about a fixed axis of rotation. The hinge assembly includes a shape memory alloy wire coupling the stationary plate with the movable plate. An actuator is provided and configured to transform the phase of the shape memory alloy wire. In various aspects, the occupant support component is selected from one of a seat bottom; a seatback; a seat bolster; a seat head rest, and the like.Type: ApplicationFiled: January 10, 2019Publication date: July 16, 2020Inventors: Brian J. Pinkelman, Umesh N. Gandhi, Ryohei Tsuruta
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Publication number: 20200216121Abstract: A dynamic interface between a vehicle windshield and a structure (e.g., an A-pillar) is provided. The dynamic interface can be actively managed to allow its configuration to be selectively changed based on real-time driving environment conditions. The interface can include one or more actuators that can be selectively activated or deactivated to change the aerodynamic characteristics of the interface. When a crosswind activation condition is detected, the actuator(s) can be activated. The actuator(s) can be soft-bodied structures. The actuator(s) can include a bladder defining a fluid chamber filled with a dielectric fluid. A first conductor and a second conductor can be operatively positioned on opposite portions of the bladder. When electrical energy is supplied to the conductors, they can become oppositely charged. As a result, the conductors can be electrostatically attracted toward each other, displacing some of the dielectric fluid to an outer peripheral region of the fluid chamber.Type: ApplicationFiled: January 9, 2019Publication date: July 9, 2020Inventors: Umesh N. Gandhi, Danil V. Prokhorov, Michael Paul Rowe, Ryohei Tsuruta
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Publication number: 20200189374Abstract: An interface between two vehicle structures can be selectively sealed using an active seal. The active seal can include an outer casing and an actuator located within the outer casing. The actuator can include a bladder. The bladder can define a fluid chamber, which can contain a dielectric fluid. The actuator can include a first conductor and a second conductor operatively positioned on opposite portions of the bladder. The actuator can be activated and deactivated by selectively supplying electrical energy to the actuator. When electrical energy is supplied to the actuator, the actuator can have a reduced cross-sectional profile such that the interface is not sealed and movement of the second vehicle structure is not impeded by the seal. When electrical energy is not supplied to the actuator, the actuator can be in a non-activated condition in which the interface is substantially sealed.Type: ApplicationFiled: December 18, 2018Publication date: June 18, 2020Inventors: Umesh N. Gandhi, Danil V. Prokhorov, Michael Paul Rowe, Ryohei Tsuruta
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Publication number: 20200189469Abstract: A mirror assembly can include a mirror and one or more actuators operatively positioned to cause the position and/or the orientation of the mirror to be adjusted. The one or more actuators include a bladder. The bladder can include a flexible casing. The bladder can define a fluid chamber. The fluid chamber can contain a dielectric fluid. The one or more actuators can include a first conductor and a second conductor operatively positioned on opposite portions of the bladder. The one or more actuators can be configured such that, when electrical energy is supplied to the first conductor and the second conductor, the first conductor and the second conductor can become oppositely charged. As a result, the first conductor and the second conductor are electrostatically attracted toward each other to cause at least a portion of the dielectric fluid to be displaced to an outer peripheral region of the fluid chamber.Type: ApplicationFiled: December 18, 2018Publication date: June 18, 2020Inventors: Umesh N. Gandhi, Danil V. Prokhorov, Michael Paul Rowe, Ryohei Tsuruta
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Patent number: 10682903Abstract: An interface between two vehicle structures can be selectively sealed using an active seal. The active seal can include an outer casing and an actuator located within the outer casing. The actuator can include a bladder. The bladder can define a fluid chamber, which can contain a dielectric fluid. The actuator can include a first conductor and a second conductor operatively positioned on opposite portions of the bladder. The actuator can be activated and deactivated by selectively supplying electrical energy to the actuator. When electrical energy is supplied to the actuator, the actuator can have a reduced cross-sectional profile such that the interface is not sealed and movement of the second vehicle structure is not impeded by the seal. When electrical energy is not supplied to the actuator, the actuator can be in a non-activated condition in which the interface is substantially sealed.Type: GrantFiled: December 18, 2018Date of Patent: June 16, 2020Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Umesh N. Gandhi, Danil V. Prokhorov, Michael Paul Rowe, Ryohei Tsuruta
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Patent number: 10677310Abstract: A vibration isolator mechanism is provided for limiting transfer of vibrations from a first element to a second element coupled to the first element. The vibration isolator mechanism may include a vibration isolator structured to provide a quasi-zero/negative stiffness response to a force applied to the vibration isolator when the applied force is within a predetermined range. The vibration isolator mechanism may also include a force application mechanism structured to apply a force to the vibration isolator. The vibration isolator mechanism may also include a force adjustment mechanism structured to adjust the force applied to the vibration isolator by the force application mechanism so that the applied force is within the predetermined range.Type: GrantFiled: December 14, 2017Date of Patent: June 9, 2020Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Umesh N. Gandhi, Ryohei Tsuruta, Brian J. Pinkelman, Rajendra Singh, Nicholas P. Mastricola
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Publication number: 20200175955Abstract: A sound-modulating window assembly, as well as systems and methods of using and operating the same, are disclosed herein. The sound-modulating window assembly can include sensors, a controller, and a sound modulation assembly. The sound-modulating window assembly The sound-modulating window assembly can receive information about one or more sounds in a vehicular environment. Then, the sound-modulating window assembly can produce a modulation profile. The modulation profile can be used by the sound modulation assembly to alter one or more characteristics of the windows, such that the sounds are mitigated or minimized.Type: ApplicationFiled: December 3, 2018Publication date: June 4, 2020Inventor: Umesh N. Gandhi
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Publication number: 20200156314Abstract: The devices and systems described herein generally relate to magnetic field chambers and reversibly hardenable ferrofluids. The reversibly hardenable ferrofluid can include a magnetically responsive fluid and a reversible hardening agent. The reversibly hardenable ferrofluid can achieve a first shape using one or more magnetic fields, such as delivered from a magnetic field chamber. Once the first shape is achieved, the reversibly hardenable ferrofluid can be cured or otherwise hardened. The hardened reversibly hardenable ferrofluid can be used for the intended purpose and then returned to a liquid state once the task is completed, allowing for reuse. The steps of hardening and liquifying can be mediated by the magnetic field chamber, as described in embodiments herein.Type: ApplicationFiled: November 21, 2018Publication date: May 21, 2020Inventors: Michael Paul Rowe, Umesh N. Gandhi
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Patent number: 10640033Abstract: A headlight assembly can include a headlight and one or more actuators operatively positioned to cause the position and/or orientation of the headlight to be adjusted. The one or more actuators include a bladder. The bladder can include a flexible casing. The bladder can define a fluid chamber. The fluid chamber can contain a dielectric fluid. The one or more actuators can include a first conductor and a second conductor operatively positioned on opposite portions of the bladder. The one or more actuators can be configured such that, when electrical energy is supplied to the first conductor and the second conductor, the first conductor and the second conductor can become oppositely charged. As a result, the first conductor and the second conductor are electrostatically attracted toward each other to cause at least a portion of the dielectric fluid to be displaced to an outer peripheral region of the fluid chamber.Type: GrantFiled: December 18, 2018Date of Patent: May 5, 2020Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.Inventors: Umesh N. Gandhi, Danil V. Prokhorov, Michael Paul Rowe, Ryohei Tsuruta
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Publication number: 20200132223Abstract: Self-healing microvalves are described herein. The self-healing microvalve can move from a first position to a second position using an electrical input and use a soft hydraulic assembly to return from the second position to the first position. The electrical input can create an electrostatic attraction, causing the compression of the soft hydraulic assembly and movement of the valve gate to seal the microvalve. The elasticity of the soft hydraulic assembly can then return the self-healing microvalve to the original state, once the electrical input is removed.Type: ApplicationFiled: October 24, 2018Publication date: April 30, 2020Inventors: Danil V. Prokhorov, Umesh N. Gandhi, Michael Paul Rowe, Ryohei Tsuruta
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Publication number: 20200130321Abstract: A stiffness control and systems for the same are disclosed herein. A first plate and a second plate can be connected with rigid support, a hydraulic actuator and a high roughness surface. Upon actuation, the actuator can force the high roughness surface against the first plate, thus increasing rigidity through hydraulic pressure against the first plate and the second plate. Thus, the stiffness of the surface can be altered in a variable and reversible fashion.Type: ApplicationFiled: October 24, 2018Publication date: April 30, 2020Inventors: Umesh N. Gandhi, Danil V. Prokhorov, Michael Paul Rowe, Ryohei Tsuruta