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公开(公告)号：US11927206B2
公开(公告)日：2024-03-12
申请号：US18164224
申请日：2023-02-03
CPC分类号： F15B15/103 , F03G7/06143 , F03G7/062
摘要： A hybrid actuation device that includes a first plate coupled to a second plate, a shape memory alloy wire coupled to the first plate, and an artificial muscle positioned between the first plate and the second plate. The artificial muscle includes a housing having an electrode region and an expandable fluid region, a first electrode and a second electrode each disposed in the electrode region of the housing and a dielectric fluid disposed within the housing. The expandable fluid region of the housing is positioned apart from a perimeter of the first plate and the second plate. A first alignment aid is positioned between the first plate and the first electrode, the first alignment aid having an inner surface facing the first plate and an outer surface facing the first electrode.
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公开(公告)号：US11891986B2
公开(公告)日：2024-02-06
申请号：US17833003
申请日：2022-06-06
CPC分类号： F03G7/06 , F15B15/103 , F15B21/065
摘要： An artificial muscle device includes a plurality of intermuscular boards and a plurality of artificial muscles disposed between the intermuscular boards in an alternating pattern and communicatively coupled to a controller. Each of the one or more artificial muscles includes a housing comprising an electrode region and an expandable fluid region, a dielectric fluid housed within the housing, and an electrode pair positioned in the electrode region of the housing, the electrode pair including a first electrode and a second electrode. The electrode pair is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state directs the dielectric fluid into the expandable fluid region, expanding the expandable fluid region, thereby applying pressure to the intermuscular boards.
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公开(公告)号：US20230078040A1
公开(公告)日：2023-03-16
申请号：US17540786
申请日：2021-12-02
摘要： A hybrid actuation device including a first plate and a second plate coupled to the first plate, a shape memory alloy wire coupled to the first plate and the second plate, a bladder positioned between the first plate and the second plate, the bladder housing a fluid, a first fixed electrode coupled to the second plate, and a flexible electrode coupled to the first plate and extending along the first fixed electrode.
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公开(公告)号：US20240293220A1
公开(公告)日：2024-09-05
申请号：US18116419
申请日：2023-03-02
IPC分类号： A61F2/08
CPC分类号： A61F2/08 , A61F2002/0894 , B25J9/1075 , B25J9/142
摘要： An artificial muscle including a housing, an electrode pair positioned in an electrode region of the housing, the electrode pair including a first electrode and a second electrode, the first electrode and the second electrode each including a pair of tapered tab portions and a bridge portion, the tapered tab portions each having a first end proximate to the expandable fluid region and an opposite second end proximate the electrode region, each of the second ends tapering in a direction opposite the expandable fluid region, the pair of tapered tab portions extending parallel to one another to define a gap portion between the pair of tapered tab portions, the bridge portion interconnecting the pair of tapered tab portions, and a dielectric fluid housed within the housing, wherein the electrode pair is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state directs the dielectric fluid into an expandable fluid region of the housing.
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公开(公告)号：US20230361693A1
公开(公告)日：2023-11-09
申请号：US17953611
申请日：2022-09-27
IPC分类号： H02N1/00
CPC分类号： H02N1/006 , B25J9/1075
摘要： An artificial muscle including a housing, an electrode pair positioned in an electrode region of the housing, the electrode pair including a first electrode and a second electrode, the first electrode and the second electrode each including a pair of tab portions and a bridge portion, the pair of tab portions extending parallel to one another to define a gap portion between the pair of tab portions, the gap portion having a constant gap width extending along a tab length of the pair of tab portions, the bridge portion interconnecting the pair of tab portions, and a dielectric fluid housed within the housing, wherein the electrode pair is actuatable between a non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state directs the dielectric fluid into an expandable fluid region of the housing.
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公开(公告)号：US11696821B2
公开(公告)日：2023-07-11
申请号：US17218287
申请日：2021-03-31
CPC分类号： A61F2/08 , B25J9/1095 , F15B15/103 , F15B21/06 , F03G7/00
摘要： An artificial muscle that includes a housing having an electrode region and an expandable fluid region, a dielectric fluid housed within the housing, an electrode pair positioned in the electrode region of the housing, the electrode pair including a first electrode and a second electrode, and an electrode insulator having one or more insulation layers. The electrode insulator is disposed on an inner electrode surface of the first electrode of the electrode pair. The second electrode includes a free inner electrode surface exposed to the dielectric fluid when the electrode pair is in a non-actuated state. The electrode pair is actuatable between the non-actuated state and an actuated state such that actuation from the non-actuated state to the actuated state directs the dielectric fluid into the expandable fluid region, expanding the expandable fluid region.
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公开(公告)号：US20230193929A1
公开(公告)日：2023-06-22
申请号：US18170179
申请日：2023-02-16
CPC分类号： F15B7/08 , H01B5/00 , F03G7/0646 , F03G7/06143
摘要： A hybrid actuation device including a first plate and a second plate coupled to the first plate, a shape memory alloy wire coupled to the first plate and the second plate, a bladder positioned between the first plate and the second plate, the bladder housing a fluid, a first fixed electrode coupled to the second plate, and a flexible electrode coupled to the first plate and extending along the first fixed electrode.
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公开(公告)号：US11601075B2
公开(公告)日：2023-03-07
申请号：US17217054
申请日：2021-03-30
摘要： A layered actuation structure includes a first platform pair and a second platform pair. Each of the first platform pair and the second platform pair include an actuation platform and a mounting platform, forming an actuation cavity of each of the first platform pair and the second platform pair. One or more connecting ledges of each platform pair couple at least one of the actuation platform and the mounting platform of each platform pair to at least one of an actuation arm and a support arm, respectively. A collective stiffness of the one or more connecting ledges of the first platform pair is different than a collective stiffness of the one or more connecting ledges of the second platform pair. The layered actuation structure also includes one or more artificial muscles disposed in the actuation cavity of the first platform pair and the second platform pair.
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公开(公告)号：US11542925B1
公开(公告)日：2023-01-03
申请号：US17474457
申请日：2021-09-14
发明人： Michael P. Rowe , Ryohei Tsuruta , Shardul S. Panwar , Maduran Palaniswamy , Max P. Herzog , Paul A. Gilmore
IPC分类号： F03G7/06
摘要： A hybrid actuation device that includes a first plate coupled to a second plate, a shape memory alloy wire coupled to the first plate, and an artificial muscle positioned between the first plate and the second plate. The artificial muscle includes a housing having an electrode region and an expandable fluid region, a first electrode and a second electrode each disposed in the electrode region of the housing and a dielectric fluid disposed within the housing. The expandable fluid region of the housing is positioned apart from a perimeter of the first plate and the second plate.
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公开(公告)号：US20220321033A1
公开(公告)日：2022-10-06
申请号：US17217054
申请日：2021-03-30
摘要： A layered actuation structure includes a first platform pair and a second platform pair. Each of the first platform pair and the second platform pair include an actuation platform and a mounting platform, forming an actuation cavity of each of the first platform pair and the second platform pair. One or more connecting ledges of each platform pair couple at least one of the actuation platform and the mounting platform of each platform pair to at least one of an actuation arm and a support arm, respectively. A collective stiffness of the one or more connecting ledges of the first platform pair is different than a collective stiffness of the one or more connecting ledges of the second platform pair. The layered actuation structure also includes one or more artificial muscles disposed in the actuation cavity of the first platform pair and the second platform pair.
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