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公开(公告)号：US20230086125A1
公开(公告)日：2023-03-23
申请号：US17955054
申请日：2022-09-28
发明人： Michael Paul Rowe , Umesh N. Gandhi
IPC分类号： B29C64/20 , B29C64/124 , B29C64/393 , B33Y30/00 , B33Y70/00 , B33Y50/02
摘要： 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.
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公开(公告)号：US20230077854A1
公开(公告)日：2023-03-16
申请号：US17702208
申请日：2022-03-23
摘要： A device for canceling acoustic noise generated includes, in one example, an inlet channel configured to be fluidly connected to an inlet port of a pump and an outlet channel configured to be fluidly connected to an outlet port of the pump. The device also includes an inlet resonator and an outlet resonator, both having open ends and closed ends. The open ends of the inlet and outlet resonators are fluidly connected to the inlet and outlet channels, respectively. When in operation, the inlet and outlet resonators can cancel noise generated by the operation of the pump.
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公开(公告)号：US11088635B2
公开(公告)日：2021-08-10
申请号：US16170959
申请日：2018-10-25
摘要： Actuators having reversible seals are described herein. The actuators can move from a first position to a second position and lock in the second position using a reversible seal. The device can include a soft hydraulic actuator having a fluid-impermeable membrane. The fluid-impermeable membrane can define a compartment, the compartment having a central region, an edge region extending from and fluidly connected with the central region, a reversible seal between the central region and the edge region, and a dielectric fluid. When actuated, the actuators can force fluid through the reversible seals and into the edge region. Once in the edge region, the reversible seals be actuated and controllably sealed to prevent return flow.
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公开(公告)号：US11081975B2
公开(公告)日：2021-08-03
申请号：US16170978
申请日：2018-10-25
摘要： The soft bodied structures and systems for controlling such devices are described herein. The soft bodied structures can, through a series of soft hydraulic actuators, move from a first position to a second position by a somersaulting motion. The system can include connecting to a first contact point of the surface using a surface attachment. The rigidity of the controllably resistive material can then be increased. The medial hydraulic actuators can be actuated to expand the exterior medial surface, creating a bend. The device can then attach to a second contact point using the surface attachment and the end portion actuator of the unattached end portion. Then, the surface attachment of the first attached end portion can detach. The medial hydraulic actuators and the controllably resistive material can then relax, followed by detaching the surface attachment of the second attached end portion.
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公开(公告)号：US11067200B2
公开(公告)日：2021-07-20
申请号：US16169310
申请日：2018-10-24
摘要： 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.
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公开(公告)号：US11041576B2
公开(公告)日：2021-06-22
申请号：US16170571
申请日：2018-10-25
摘要： Actuators having electroactive valves are described herein. The actuators can move from a first position to a second position and lock in the second position using an electroactive valve. The device can include an actuator having a fluid-impermeable membrane. The fluid-impermeable membrane can define a compartment, the compartment having a central region, an edge region extending from and fluidly connected with the central region, an electroactive valve between the central region and the edge region, and a dielectric fluid. When actuated, the actuators can force fluid through the electroactive valves and into the edge region. Once in the edge region, the electroactive valves can prevent return flow until receiving an actuation signal.
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公开(公告)号：US20200238629A1
公开(公告)日：2020-07-30
申请号：US16256569
申请日：2019-01-24
发明人： Umesh N. Gandhi , Michael Paul Rowe , Yuyang Song
摘要： 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.
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公开(公告)号：US20190291051A1
公开(公告)日：2019-09-26
申请号：US16435773
申请日：2019-06-10
发明人： Torin C. Peck , Michael Paul Rowe , Michael Jones
摘要： A co-catalyst system for the removal of NOx from an exhaust gas stream has a layered oxide and a spinel of formula Ni0.15Co0.85CoAlO4. The system converts to nitric oxide to nitrogen gas with high product specificity. The layered oxide is configured to convert NOx in the exhaust gas stream to an N2O intermediate, and the spinel is configured to convert the N2O intermediate to N2.
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公开(公告)号：US20180079884A1
公开(公告)日：2018-03-22
申请号：US15272711
申请日：2016-09-22
发明人： Michael Paul Rowe
CPC分类号： C08K3/08 , B32B15/14 , C08K2003/0856 , C08L77/06
摘要： Composite materials include a steel matrix with structural polymer integrated into the matrix. The composite materials have substantially lower density than steel, and are expected to have appreciable strength. Methods for forming composite steel composites includes combining a structural polymer component, such as a woven polymer, with steel nanoparticles and sintering the steel nanoparticles in order to form a steel matrix with structural polymer integrated therein.
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公开(公告)号：US09800095B2
公开(公告)日：2017-10-24
申请号：US14252036
申请日：2014-04-14
IPC分类号： B60L1/00 , H02K1/02 , H01F27/255 , H01F1/00
CPC分类号： H02K1/02 , H01F1/0054 , H01F27/255
摘要： Core shell nanoparticles of an iron-cobalt alloy core, a silicon dioxide shell and a metal silicate interface between the core and the shell are provided. The magnetic properties of the nanoparticles are tunable by control of the interface thickness. A magnetic core of high magnetic moment obtained by compression sintering the thermally annealed superparamagnetic core shell nanoparticles is also provided. The magnetic core has little core loss due to hysteresis or eddy current flow.
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