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公开(公告)号：US10065322B2
公开(公告)日：2018-09-04
申请号：US15379311
申请日：2016-12-14
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Jonathan Hopkins , Yuanping Song
Abstract: A microarchitectured material having a plurality of interconnected unit cells in 2D or 3D configurations. The permanent interconnections to adjacent unit cells include mechanical output structures driven by mechanical actuators. One or more sensors are preferably utilized, such as utilizing a sensing mode of the actuator, for detecting forces and or displacements applied to the unit cell. The unit cells are each controlled by a control circuit for generating drive signals to the actuators in the unit cell so that desired mechanical properties and/or shapes are exhibited by the microarchitectured material.
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公开(公告)号：US12159226B2
公开(公告)日：2024-12-03
申请号：US17139800
申请日：2020-12-31
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Jonathan Hopkins , Ali Hatamizadeh , Yuanping Song
Abstract: A boundary learning optimization tool for training neural networks with accurate models of parameterized flexure using a minimal number of numerically generated performance solutions generated from different design instantiations of those topologies. Performance boundaries are output by the neural network in optimization steps, with geometric parameters varied from smallest allowable feature sizes to largest geometrically compatible feature sizes for given constituent materials. The plotted performance boundaries define the design spaces of flexure systems toward allowing designers to visually identify which geometric versions of their synthesized topologies best achieve desired combinations of performance capabilities.
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公开(公告)号：US11193551B2
公开(公告)日：2021-12-07
申请号：US15498648
申请日：2017-04-27
Applicant: The Regents of the University of California
Inventor： Babak Haghpanah Jahromi , Lorenzo Valdevit , Jonathan Hopkins
Abstract: In one embodiment, a shape-reconfigurable structure includes a rigid base having first and second ends, a rigid first beam having a lateral end and a central end, the lateral end being connected to the first end of the base, and a rigid second beam having a lateral end and a central end, the lateral end of the second beam being connected to the second end of the base and the central end of the second beam being connected to the central end of the first beam, wherein the structure can be placed in an expanded orientation in which the first and second beams extend outward away from the base and a contracted orientation in which the first and second beams extend inward toward the base.
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公开(公告)号：US10855259B1
公开(公告)日：2020-12-01
申请号：US16808629
申请日：2020-03-04
Inventor： Robert Matthew Panas , Logan Bekker , Julie Mancini , Andrew Pascall , Jonathan Hopkins , Amin Farzaneh
Abstract: The present disclosure relates to a micromechanical displacement logic, signal propagation system that makes use of first and second bistable elements, and first and second mounting structures arranged adjacent opposing surfaces of the first bistable element. A plurality of pivotal lever arms are used to support the first bistable element in either one of two positions of equilibrium. A support structure and a compressible flexure element disposed between the support structure and the first mounting structure apply a preload force to the first mounting structure, which imparts the preload force to the first bistable element. The first bistable element is moveable from one of the two stable equilibrium positions to the other in response to an initial signal applied thereto. The preload force, at least one stiffness characteristic of the lever arms, and a compressibility of a compressible coupling element which links the second bistable element to the first, are all selected to tune signal propagation from the first bistable element to the second bistable element.
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公开(公告)号：US12016811B2
公开(公告)日：2024-06-25
申请号：US17585271
申请日：2022-01-26
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA , Piyush Sheth
Inventor： Jonathan Hopkins , Piyush Sheth
CPC classification number: A61G7/0573 , A47C21/02 , A47C21/022 , A47C21/028 , A47C23/00 , A47C23/002 , A47C23/02 , A47C23/12
Abstract: A pressure sore prevention mattress is provided alternating pressure points on the body of an occupant that is easily transformable between two stable configurations. The four-layer mattress construction has a top foam pad, a webbing layer, a dynamic layer of deformable panels trapezoid-shaped four-bar mechanisms that deform to produce an undulating pattern of peaks, and a base. Panel geometry can determine peak height. The mattress has a spatially hollow geometry that allows natural air convection through the breathable top foam pad to enable drying of moisture as well as the use of forced air convective drying or cooling. The mattress can be transformed from one configuration to the other while the occupant is on the mattress.
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Patent Agency Ranking
公开(公告)号：US20210241100A1
公开(公告)日：2021-08-05
申请号：US17139800
申请日：2020-12-31
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Jonathan Hopkins , Ali Hatamizadeh , Yuanping Song
Abstract: A boundary learning optimization tool for training neural networks with accurate models of parameterized flexure using a minimal number of numerically generated performance solutions generated from different design instantiations of those topologies. Performance boundaries are output by the neural network in optimization steps, with geometric parameters varied from smallest allowable feature sizes to largest geometrically compatible feature sizes for given constituent materials. The plotted performance boundaries define the design spaces of flexure systems toward allowing designers to visually identify which geometric versions of their synthesized topologies best achieve desired combinations of performance capabilities.
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公开(公告)号：US20200025272A1
公开(公告)日：2020-01-23
申请号：US15498648
申请日：2017-04-27
Applicant: The Regents of the University of California
Inventor： Babak Haghpanah Jahromi , Lorenzo Valdevit , Jonathan Hopkins
IPC: F16F7/00
Abstract: In one embodiment, a shape-reconfigurable structure includes a rigid base having first and second ends, a rigid first beam having a lateral end and a central end, the lateral end being connected to the first end of the base, and a rigid second beam having a lateral end and a central end, the lateral end of the second beam being connected to the second end of the base and the central end of the second beam being connected to the central end of the first beam, wherein the structure can be placed in an expanded orientation in which the first and second beams extend outward away from the base and a contracted orientation in which the first and second beams extend inward toward the base.
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公开(公告)号：US20240398643A1
公开(公告)日：2024-12-05
申请号：US18731142
申请日：2024-05-31
Applicant: Piyush Sheth , THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Jonathan Hopkins , Piyush Sheth
Abstract: A pressure sore prevention mattress is provided alternating pressure points on the body of an occupant that is easily transformable between two stable configurations. The four-layer mattress construction has a top foam pad, a webbing layer, a dynamic layer of deformable panels trapezoid-shaped four-bar mechanisms that deform to produce an undulating pattern of peaks, and a base. Panel geometry can determine peak height. The mattress has a spatially hollow geometry that allows natural air convection through the breathable top foam pad to enable drying of moisture as well as the use of forced air convective drying or cooling. The mattress can be transformed from one configuration to the other while the occupant is on the mattress.
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公开(公告)号：US20220175601A1
公开(公告)日：2022-06-09
申请号：US17585271
申请日：2022-01-26
Applicant: Piyush Sheth , THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Jonathan Hopkins , Piyush Sheth
IPC: A61G7/057
Abstract: A pressure sore prevention mattress is provided alternating pressure points on the body of an occupant that is easily transformable between two stable configurations. The four-layer mattress construction has a top foam pad, a webbing layer, a dynamic layer of deformable panels trapezoid-shaped four-bar mechanisms that deform to produce an undulating pattern of peaks, and a base. Panel geometry can determine peak height. The mattress has a spatially hollow geometry that allows natural air convection through the breathable top foam pad to enable drying of moisture as well as the use of forced air convective drying or cooling. The mattress can be transformed from one configuration to the other while the occupant is on the mattress.
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公开(公告)号：US20170157777A1
公开(公告)日：2017-06-08
申请号：US15379311
申请日：2016-12-14
Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Inventor： Jonathan Hopkins , Yuanping Song
CPC classification number: B25J13/08 , B25J7/00 , B25J9/0015 , B25J9/08 , B25J9/1617 , B25J19/02 , B81B7/008 , G05B2219/39146 , G05B2219/45073
Abstract: A microarchitectured material having a plurality of interconnected unit cells in 2D or 3D configurations. The permanent interconnections to adjacent unit cells include mechanical output structures driven by mechanical actuators. One or more sensors are preferably utilized, such as utilizing a sensing mode of the actuator, for detecting forces and or displacements applied to the unit cell. The unit cells are each controlled by a control circuit for generating drive signals to the actuators in the unit cell so that desired mechanical properties and/or shapes are exhibited by the microarchitectured material.
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