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1. 发明公开

US20240229779A9 BIDIRECTIONAL, LINEAR AND BINARY, SEGMENTED ANTAGONISTIC SERVOMECHANISM-BASED SHAPE MEMORY ALLOY (SMA) ACTUATOR 审中-公开
公开(公告)号：US20240229779A9
公开(公告)日：2024-07-11
申请号：US18491436
申请日：2023-10-20
申请人： COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
发明人： Bhargaw Hari NARAYAN , Joshi Tilak CHANDRA , Hashmi Syed Azhar RASHEED , Srivastava Avanish KUMAR , John PRETESH
IPC分类号： F03G7/06
CPC分类号： F03G7/0635 , F03G7/06143 , F03G7/0616 , F03G7/062 , F03G7/064 , F03G7/0665 , B33Y30/00
摘要： A Bidirectional, Linear and Binary, Segmented Antagonistic Servomechanism-based Shape Memory Alloy (SMA) Actuator comprising a main stroke transmitting lever (11 or 18) and a plurality of part-modules (15A or 15B) disposed in a closely spaced arrangement and adapted to undergo a reciprocal translation in a first direction. wherein, the part-modules comprising a plurality of segments having SMA elements (12). The invention provides two configurations arranged in ‘straight’ and ‘cross’ configurations of the SMA elements in the part-modules. Further above configuration are arranged in a tight close space however, the “cross” configuration provides additional 40% compactness. The configurations comprise a “S-type long tail” or “flipped F-type long tail” main stroke transmitting lever and plurality of “straight” or “cross” configurations part modules, respectively. The novel embodiment can be utilized for micro-positioning of 3D printer filament extruder head, linear and angular displacement applications such as robotic, prosthesis, bi-stable position control, latching-unlatching systems, and other wide engineering applications.

2. 发明授权

US12000385B2 Driving mechanism 有权
公开(公告)号：US12000385B2
公开(公告)日：2024-06-04
申请号：US18076579
申请日：2022-12-07
申请人： TDK TAIWAN CORP.
发明人： Yung-Yun Chen , Kun-Shih Lin
IPC分类号： F03G7/06 , H04N23/54 , H04N23/67 , H04N23/68
CPC分类号： F03G7/062 , F03G7/0614 , H04N23/54 , H04N23/67 , H04N23/6812 , H04N23/687
摘要： A driving mechanism is provided in the present disclosure, including a fixed portion, a first movable portion, and a first driving assembly. The first movable portion moves relative to the fixed portion in a first direction. The first driving assembly drives the first movable portion to move relative to the fixed portion in the first direction. The first driving assembly includes a coil and a magnetic element corresponding to the coil.

3. 发明公开

US20240060480A1 SHAPE-MEMORY MATERIAL ACTUATORS 审中-公开
公开(公告)号：US20240060480A1
公开(公告)日：2024-02-22
申请号：US18498595
申请日：2023-10-31
申请人： Toyota Motor Engineering & Manufacturing North America, Inc.
发明人： Shardul S. Panwar , Michael P. Rowe , Maduran Palaniswamy , Ryohei Tsuruta
IPC分类号： F03G7/06
CPC分类号： F03G7/06143 , F03G7/062
摘要： An actuator that includes a shell, a ring structure within the shell, a shape-memory material wire fixed at opposite points of the ring structure to extend in a first direction across a width of the ring structure, and a cooling fluid provided within the shell and in fluid communication with the shape-memory material wire. When the shape-memory material wire is heated, the shape-memory material wire contracts in the first direction to reduce the width of the ring structure and increases a height of the ring structure extending in a second direction perpendicular to the first direction.

4. 发明公开

US20240254974A1 STRAIN MULTIPLYING COMPRESSION ENGINE 审中-公开
公开(公告)号：US20240254974A1
公开(公告)日：2024-08-01
申请号：US18418568
申请日：2024-01-22
申请人： Recovery Force, LLC
发明人： Ryan Hamilton , Jeffrey Schwegman
IPC分类号： F03G7/06
CPC分类号： F03G7/062 , F03G7/06143 , F03G7/064 , F05B2280/5006
摘要： A compression apparatus includes a pair of compression engines incorporating shape memory alloy (SMA) wires configured to provide compression to the limb or torso of a person. The compression engines are in an overlapping arrangement to provide a strain capability of the compression apparatus that is greater than the additive strain capability of the pair of compression engines.

5. 发明授权

US12049876B2 Temperature differential engine 有权
公开(公告)号：US12049876B2
公开(公告)日：2024-07-30
申请号：US17696012
申请日：2022-03-16
申请人： Rahim Fotuhi
发明人： Rahim Fotuhi
IPC分类号： F03G7/06
CPC分类号： F03G7/0641 , F03G7/062 , F03G7/0633
摘要： In an example, an engine includes a thermal expansion unit comprising expansion material that expands in response to a temperature increase of the expansion material and contracts in response to a temperature decrease of the expansion material. The engine includes a structure comprising a heat receiving region, wherein at least a portion of the thermal expansion unit is disposed within the structure. The heat receiving region is configured to transfer thermal energy from a source of thermal energy to the expansion material through a first thermal energy transference path. The transfer of thermal energy to the thermal expansion unit causes expansion of the expansion material within the thermal expansion unit. The expansion of the expansion material causes an increase in length of the thermal expansion unit. The increase in length of the thermal expansion unit causes establishment of a second thermal energy transference path through which thermal energy is transferred from the expansion material to outside the thermal expansion unit.

6. 发明授权

US11897379B2 Seat with shape memory material member actuation 有权
公开(公告)号：US11897379B2
公开(公告)日：2024-02-13
申请号：US17506111
申请日：2021-10-20
申请人： Toyota Motor Engineering & Manufacturing North America, Inc.
发明人： Ryohei Tsuruta , Brian J. Pinkelman , Umesh N. Gandhi , Paul A. Gilmore
IPC分类号： B60N2/66 , A47C7/46 , F03G7/06 , B60N2/02
CPC分类号： B60N2/667 , A47C7/462 , B60N2/0244 , B60N2/66 , F03G7/062 , F03G7/064 , F03G7/06146 , A47C7/465 , F03G7/0614
摘要： 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.

7. 发明授权

US11841008B1 Shape-memory material actuators 有权
公开(公告)号：US11841008B1
公开(公告)日：2023-12-12
申请号：US18163621
申请日：2023-02-02
申请人： Toyota Motor Engineering & Manufacturing North America, Inc.
发明人： Shardul S. Panwar , Michael P. Rowe , Maduran Palaniswamy , Ryohei Tsuruta
IPC分类号： F03G7/06
CPC分类号： F03G7/06143 , F03G7/062
摘要： An actuator that includes a shell, a ring structure within the shell, a shape-memory material wire fixed at opposite points of the ring structure to extend in a first direction across a width of the ring structure, and a cooling fluid provided within the shell and in fluid communication with the shape-memory material wire. When the shape-memory material wire is heated, the shape-memory material wire contracts in the first direction to reduce the width of the ring structure and increases a height of the ring structure extending in a second direction perpendicular to the first direction.

8. 发明公开

US20230374977A1 SHAPE-MEMORY MATERIAL ACTUATORS 审中-公开
公开(公告)号：US20230374977A1
公开(公告)日：2023-11-23
申请号：US18163621
申请日：2023-02-02
申请人： Toyota Motor Engineering & Manufacturing North America, Inc.
发明人： Shardul S. Panwar , Michael P. Rowe , Maduran Palaniswamy , Ryohei Tsuruta
IPC分类号： F03G7/06
CPC分类号： F03G7/06143 , F03G7/062
摘要： An actuator that includes a shell, a ring structure within the shell, a shape-memory material wire fixed at opposite points of the ring structure to extend in a first direction across a width of the ring structure, and a cooling fluid provided within the shell and in fluid communication with the shape-memory material wire. When the shape-memory material wire is heated, the shape-memory material wire contracts in the first direction to reduce the width of the ring structure and increases a height of the ring structure extending in a second direction perpendicular to the first direction.

9. 发明公开

US20230304479A1 LINEAR DRIVE AND LINEAR DRIVE ARRANGEMENT 审中-公开
公开(公告)号：US20230304479A1
公开(公告)日：2023-09-28
申请号：US18020787
申请日：2021-08-04
申请人： Conti Temic microelectronic GmbH
发明人： Michael Beuschel , Stefan Bauer
IPC分类号： F03G7/06 , H02N10/00
CPC分类号： F03G7/06143 , F03G7/064 , F03G7/0665 , F03G7/062 , H02N10/00
摘要： A linear drive comprises: a lever having a through bore; a rod which extends through the bore; a bearing supporting the rod; a shape memory alloy connected to the lever and a first fixed bearing, the shape memory alloy exerting a tensile force on the lever when electrical power is applied; and a restoring element connected to the lever and a second fixed bearing, the restoring element exerting a restoring force on the lever and counter to the tensile force. In a first state, the lever is tilted making a non-positive connection between the lever and the rod. In a second state the lever is displaced in parallel to and in the direction of the tensile force. In a third state the lever is tilted back releasing the non-positive connection. In a fourth state, the lever is displaced in parallel to and in the direction of the restoring force.

10. 发明授权

US12146477B2 Bidirectional, linear and binary, segmented antagonistic servomechanism-based shape memory alloy (SMA) actuator 有权
公开(公告)号：US12146477B2
公开(公告)日：2024-11-19
申请号：US18491436
申请日：2023-10-20
申请人： COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
发明人： Bhargaw Hari Narayan , Joshi Tilak Chandra , Hashmi Syed Azhar Rasheed , Srivastava Avanish Kumar , John Pretesh
IPC分类号： F03G7/06 , B33Y30/00
CPC分类号： F03G7/0635 , F03G7/06143 , F03G7/0616 , F03G7/062 , F03G7/064 , F03G7/0665 , B33Y30/00
摘要： A Bidirectional, Linear and Binary, Segmented Antagonistic Servomechanism-based Shape Memory Alloy (SMA) Actuator comprising a main stroke transmitting lever (11 or 18) and a plurality of part-modules (15A or 15B) disposed in a closely spaced arrangement and adapted to undergo a reciprocal translation in a first direction. wherein, the part-modules comprising a plurality of segments having SMA elements (12). The invention provides two configurations arranged in ‘straight’ and ‘cross’ configurations of the SMA elements in the part-modules. Further above configuration are arranged in a tight close space however, the “cross” configuration provides additional 40% compactness. The configurations comprise a “S-type long tail” or “flipped F-type long tail” main stroke transmitting lever and plurality of “straight” or “cross” configurations part modules, respectively. The novel embodiment can be utilized for micro-positioning of 3D printer filament extruder head, linear and angular displacement applications such as robotic, prosthesis, bi-stable position control, latching-unlatching systems, and other wide engineering applications.

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