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公开(公告)号：US20070028714A1
公开(公告)日：2007-02-08
申请号：US11496748
申请日：2006-07-31
Applicant: Craig Lusk , Larry Howell
Inventor： Craig Lusk , Larry Howell
IPC: G05G11/00
CPC classification number: G02B7/005 , Y10T74/20341 , Y10T74/20348
Abstract: A platform actuator includes a substrate, a first, a second, and a third spherical input slider-crank mechanism, wherein each of the first, second, and third spherical input slider crank mechanism is coupled by a first end to said substrate, and a platform is coupled to a second end of each of the first, second, and third spherical input slider-cranks. According to one exemplary embodiment, each of the first, second, and third spherical input slider-crank mechanisms are configured to convert in-plane motion to out-of-plane motion.
Abstract translation: 平台致动器包括基板，第一，第二和第三球形输入滑块 - 曲柄机构，其中第一，第二和第三球形输入滑块曲柄机构中的每一个通过第一端耦合到所述基板，并且 平台耦合到第一，第二和第三球形输入滑块曲柄中的每一个的第二端。 根据一个示例性实施例，第一，第二和第三球形输入滑块 - 曲柄机构中的每一个被配置成将平面内运动转换成平面外运动。
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公开(公告)号：US20070023271A1
公开(公告)日：2007-02-01
申请号：US11496747
申请日：2006-07-31
Applicant: Craig Lusk , Larry Howell
Inventor： Craig Lusk , Larry Howell
IPC: H01H13/14
CPC classification number: H01H1/0036 , H01H2001/0042 , H01H2001/0047
Abstract: A spherical bi-stable mechanism includes a planar bi-stable compliant member including an input and an output, and a spherical mechanism member coupled to the output of the first planar bi-stable compliant component. An actuation of the first planar bi-stable compliant member in a first plane is configured to cause the spherical mechanism member to be selectively positioned in a second plane.
Abstract translation: 球形双稳态机构包括平面双稳态顺应构件，其包括输入和输出，以及耦合到第一平面双稳态柔性部件的输出的球面机构构件。 在第一平面中的第一平面双稳态柔顺构件的致动被构造成使球面机构构件选择性地定位在第二平面中。
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公开(公告)号：US10336028B1
公开(公告)日：2019-07-02
申请号：US15222258
申请日：2016-07-28
Applicant: Andrew Jason Katz , Craig Lusk
Inventor： Andrew Jason Katz , Craig Lusk
Abstract: The first objective of this paper is to take an existing design for a shape-shifting surface (SSS) and make it waterproof, making it an effective barrier to fluid flow. The second objective is to minimize internal stresses in the device during operation, by optimizing the kinematic geometry of the SSS. The first objective was achieved by adding a waterproof membrane between the layers of the SSS, where the membrane had an origami fold pattern that enables the membrane to mimic the kinematics of the SSS. The second objective was achieved by creating a two objective optimization routine, which determined the kinematic geometry of the SSS which would minimize the internal stresses due to compression/tension of the flexure portion of the SSS during operation. The resulting SSS is easier to operate due to lower stresses, and has a membrane which prevents transverse fluid flow and mimics its motion.
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公开(公告)号：US09783978B1
公开(公告)日：2017-10-10
申请号：US15224995
申请日：2016-08-01
Applicant: Ahmad Alqasimi , Craig Lusk
Inventor： Ahmad Alqasimi , Craig Lusk
CPC classification number: E04B1/3441 , E04B1/1903 , E04B1/34384 , E04B2001/1942 , E04B2001/1957 , F16S3/08
Abstract: A shape-morphing space frame (SMSF) utilizing the linear bistable compliant crank-slider mechanism (LBCCSM). The frame's initial shape is constructed from a single-layer grid of flexures, rigid links and LBCCSMs. The grid is bent into the space frame's initial cylindrical shape, which can morph because of the inclusion of LBCCSMs in its structure. The design parameters include the frame's initial height, its tessellation pattern (including the unit cell bistable elements' placement), its initial diameter, and the resulting desired shape. The method used in placing the unit cell bistable elements considers the principle stress trajectories. Two different examples of shape-morphing space frames are presented herein, each starting from a cylindrical-shell space frame and morphing, one to a hyperbolic-shell space frame and the other to a spherical-shell space frame, both morphing by applying moments, which shear the cylindrical shell, and forces, which change the cylinder's radius using Poisson's effect.
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公开(公告)号：US10330144B1
公开(公告)日：2019-06-25
申请号：US16117979
申请日：2018-08-30
Applicant: Ahmad Alqasimi , Craig Lusk
Inventor： Ahmad Alqasimi , Craig Lusk
Abstract: A linear element with two stable points, it can be used as trust element allows for change in length. It can transform structure from one shape to another thus allowing for morphable configuration. A new model is presented herein for a linear bi-stable compliant mechanism and design guidelines for its use. The mechanism is based on the crank-slider mechanism. This model takes into account the first mode of buckling and post-buckling behavior of a compliant segment to describe the mechanism's bi-stable behavior. The kinetic and kinematic equations, derived from the Pseudo-Rigid-Body Model, were solved numerically and are represented in plots. This representation allows the generation of step-by-step design guidelines. Because different applications may have different input requirements, two different design approaches are described herein with different parameters subsets as inputs.
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Patent Agency Ranking
公开(公告)号：US07614673B2
公开(公告)日：2009-11-10
申请号：US11933806
申请日：2007-11-01
Applicant: Murray E. Maitland , M. Jason Highsmith , Craig Lusk
Inventor： Murray E. Maitland , M. Jason Highsmith , Craig Lusk
IPC: B25J15/08
CPC classification number: A61F2/588 , A61F2/586 , A61F2/68 , A61F2/72 , A61F2002/6827 , A61F2002/7635 , Y10S294/902
Abstract: A prosthetic finger includes a crossed four (4) bar linkage system having a base formed by a base bar, two cross bars, and an interface bar that engages an object to be held. The base bar is fixed to an artificial finger of an amputee. A first cross bar has a first end pivotally mounted to a first end of the base bar and a second cross bar has a first end pivotally mounted to a second end of the base bar. The first cross bar has a second end pivotally mounted to a first end of the interface bar and the second cross bar has a second end pivotally mounted to a second end of the interface bar. The first and second cross bars are slideably interconnected to one another at a cross point which changes its location as the prosthesis grasps objects of differing sizes and shapes.
Abstract translation: 假手指包括交叉的四（4）连杆系统，其具有由基座条形成的基部，两个横杆和接合待接合物体的接合杆。 基座杆被固定在被截肢者的人造手指上。 第一横杆具有枢转地安装到基座杆的第一端的第一端，并且第二横杆具有枢转地安装到基座杆的第二端的第一端。 第一横杆具有枢转地安装到接口杆的第一端的第二端，并且第二横杆具有枢转地安装到接口杆的第二端的第二端。 第一和第二横杆在交叉点处彼此可滑动地互相连接，该交叉点随着假体抓住不同尺寸和形状的物体而改变其位置。
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公开(公告)号：US10006196B1
公开(公告)日：2018-06-26
申请号：US15691110
申请日：2017-08-30
Applicant: Ahmad Alqasimi , Craig Lusk
Inventor： Ahmad Alqasimi , Craig Lusk
CPC classification number: E04B1/3441 , E04B1/1903 , E04B1/34384 , E04B2001/1942 , E04B2001/1957 , F16S3/08
Abstract: A shape-morphing space frame (SMSF) utilizing the linear bistable compliant crank-slider mechanism (LBCCSM). The frame's initial shape is constructed from a single-layer grid of flexures, rigid links and LBCCSMs. The grid is bent into the space frame's initial cylindrical shape, which can morph because of the inclusion of LBCCSMs in its structure. The design parameters include the frame's initial height, its tessellation pattern (including the unit cell bistable elements' placement), its initial diameter, and the resulting desired shape. The method used in placing the unit cell bistable elements considers the principle stress trajectories. Two different examples of shape-morphing space frames are presented herein, each starting from a cylindrical-shell space frame and morphing, one to a hyperbolic-shell space frame and the other to a spherical-shell space frame, both morphing by applying moments, which shear the cylindrical shell, and forces, which change the cylinder's radius using Poisson's effect.
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公开(公告)号：US20170145681A1
公开(公告)日：2017-05-25
申请号：US15197203
申请日：2016-06-29
Applicant: Ahmad Alqasimi , Craig Lusk
Inventor： Ahmad Alqasimi , Craig Lusk
CPC classification number: E04B1/3441 , E04B1/1903 , E04B1/34384 , E04B2001/1957 , F16S3/08
Abstract: Unit cell bistable elements, and particular arrangements thereof, that can transform or morph a structure from one shape to another. In certain embodiments, the current invention includes unit cell bistable elements, and particular arrangements and uses thereof, that can transform or morph a structure from one shape to another. In an embodiment, the current invention provides a method/ability to transform any four-bar compliant mechanism into a bistable compliant mechanism. It is an object of the current invention to facilitate structures morphing from one specific shape to another specific shape using unit cell bistable elements.
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公开(公告)号：US20080109084A1
公开(公告)日：2008-05-08
申请号：US11933806
申请日：2007-11-01
Applicant: Murray E. Maitland , M. Jason Highsmith , Craig Lusk
Inventor： Murray E. Maitland , M. Jason Highsmith , Craig Lusk
IPC: A61F2/42
CPC classification number: A61F2/588 , A61F2/586 , A61F2/68 , A61F2/72 , A61F2002/6827 , A61F2002/7635 , Y10S294/902
Abstract: A prosthetic finger includes a crossed four (4) bar linkage system having a base formed by a base bar, two cross bars, and an interface bar that engages an object to be held. The base bar is fixed to an artificial finger of an amputee. A first cross bar has a first end pivotally mounted to a first end of the base bar and a second cross bar has a first end pivotally mounted to a second end of the base bar. The first cross bar has a second end pivotally mounted to a first end of the interface bar and the second cross bar has a second end pivotally mounted to a second end of the interface bar. The first and second cross bars are slideably interconnected to one another at a cross point which changes its location as the prosthesis grasps objects of differing sizes and shapes.
Abstract translation: 假手指包括交叉的四（4）连杆系统，其具有由基座条形成的基部，两个横杆和接合待接合物体的接合杆。 基座杆被固定在被截肢者的人造手指上。 第一横杆具有枢转地安装到基座杆的第一端的第一端，并且第二横杆具有枢转地安装到基座杆的第二端的第一端。 第一横杆具有枢转地安装到接口杆的第一端的第二端，并且第二横杆具有枢转地安装到接口杆的第二端的第二端。 第一和第二横杆在交叉点处彼此可滑动地互相连接，该交叉点随着假体抓住不同尺寸和形状的物体而改变其位置。
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公开(公告)号：US10473152B1
公开(公告)日：2019-11-12
申请号：US15198627
申请日：2016-06-30
Applicant: Ahmad Alqasimi , Craig Lusk
Inventor： Ahmad Alqasimi , Craig Lusk
Abstract: A linear element with two stable points, it can be used as trust element allows for change in length. It can transform structure from one shape to another thus allowing for morphable configuration. A new model is presented herein for a linear bi-stable compliant mechanism and design guidelines for its use. The mechanism is based on the crank-slider mechanism. This model takes into account the first mode of buckling and post-buckling behavior of a compliant segment to describe the mechanism's hi-stable behavior. The kinetic and kinematic equations, derived from the Pseudo-Rigid-Body Model, were solved numerically and are represented in plots. This representation allows the generation of step-by-step design guidelines. Because different applications may have different input requirements, two different design approaches are described herein with different parameters subsets as inputs.
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