Craig P Lusk

US Patent:

7763818, Jul 27, 2010

Filed:

Jul 31, 2006

Appl. No.:

11/496747

Inventors:

Craig Lusk - Lutz FL, US
Larry L. Howell - Orem UT, US

Assignee:

Brigham Young University - Provo UT

International Classification:

H01H 13/14
H01H 3/12

US Classification:

200341

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.

US Patent:

8234951, Aug 7, 2012

Filed:

May 13, 2010

Appl. No.:

12/779570

Inventors:

Aaron A. Muñoz - Dover FL, US
Craig P. Lusk - Lutz FL, US

Assignee:

University of South Florida - Tampa FL

International Classification:

G05G 11/00
H01H 57/00
H02N 10/00

US Classification:

7449009, 200181, 310306

Abstract:

A bistable MEMS platform. The bistable MEMS platform converts a rotational input into an ortho-planar displacement and can maintain either it's up or down position without an input force due to bi-stability. The bistable MEMS platform generally includes three components. The first component is a pair of quadrantal bistable mechanisms (QBM). The second is a compliant version of a micro helico-kinematic platform (HKP) that serves to coordinate the motion of the QBM. The third component is an aerial platform, which is a variation of a scissor lift mechanism that attaches to the output of the QBM and amplifies the out-of-plane displacement.

US Patent:

8336421, Dec 25, 2012

Filed:

Jul 31, 2006

Appl. No.:

11/496748

Inventors:

Craig Lusk - Lutz FL, US
Larry L. Howell - Orem UT, US

Assignee:

Brigham Young University - Provo UT

International Classification:

B25J 17/00

US Classification:

7449008

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.

US Patent:

8358981, Jan 22, 2013

Filed:

Oct 29, 2009

Appl. No.:

12/608580

Inventors:

Richard Gitlin - Tampa FL, US
Craig Lusk - Lutz FL, US
Shekhar Bhansali - Tampa FL, US
Alexander Rosemurgy - Tampa FL, US

Assignee:

University of South Florida - Tampa FL

International Classification:

H04B 7/00
H04M 1/00

US Classification:

455 661, 4555756

Abstract:

A system for performing non-invasive networked medical procedures including a number of in vivo medical devices, a communication path between at least two of the devices, an ex vivo control unit to control the behavior of the devices, and a wireless communication path between the control unit and at least one of the devices. An associated method for performing non-invasive networked medical procedures is also provided.

US Patent:

8402711, Mar 26, 2013

Filed:

May 31, 2012

Appl. No.:

13/484680

Inventors:

Craig Perry Lusk - Lutz FL, US
Paul Joseph Montalbano - St. Cloud FL, US

Assignee:

University of South Florida - Tampa FL

International Classification:

E04H 12/18
E04H 9/00
E04H 14/00
E04H 9/02

US Classification:

52646, 52 1, 521672, 160236

Abstract:

Multistable shape-shifting surfaces that retain their effectiveness as physical barriers while undergoing changes in shape and that can remain stable in the various shapes. The shape changes include any motion that makes the surface more effective at performing its function, such as expansion, shrinkage, twisting, encircling, wiggling, swallowing or constricting. The shape-shifting surfaces include tiled arrays of polygonal cells, each cell including specifically-designed compliant flexures attached to specifically-shaped overlapping thin plates or shells. The surfaces remain stable by leveraging them during deformation to an extent that they cannot spontaneously return to the unstressed shape. Applications for such surfaces include micro-scale cellular engineering and macro-scale biomedical applications, recreational uses, national security, and environmental protection.

US Patent:

8416342, Apr 9, 2013

Filed:

Feb 9, 2010

Appl. No.:

12/702704

Inventors:

Richard Gitlin - Tampa FL, US
Craig Lusk - Lutz FL, US
Shekhar Bhansali - Tampa FL, US
Alexander Rosemurgy - Tampa FL, US

Assignee:

University of South Florida - Tampa FL

International Classification:

H04N 5/225
H04N 3/14

US Classification:

348373, 348294, 359830

Abstract:

An imaging device for in vivo medical applications that enables minimally invasive surgical procedures. The imaging device includes an elongated frame having a base, a module housing, and a helical member interposed between the base and module housing. The imaging device further includes an actuation unit positioned within the frame that engages the module housing causing the frame to bend at the helical member. The module housing includes an imaging module and may include other modules including tools used for laparoscopic surgery.

US Patent:

8424265, Apr 23, 2013

Filed:

Nov 22, 2011

Appl. No.:

13/302606

Inventors:

Craig Perry Lusk - Lutz FL, US

Assignee:

University of South Florida - Tampa FL

International Classification:

E04H 12/18
E04H 9/00
E04H 14/00
E04H 9/02

US Classification:

52646, 52 1, 521672, 160236

Abstract:

Shape-shifting surfaces that retain their effectiveness as physical barriers while undergoing changes in shape. The shape changes include any motion that makes the surface more effective at performing its function, such as expansion, shrinkage, twisting, encircling, wiggling, swallowing or constricting. The shape-shifting surfaces include tiled arrays of polygonal cells, each cell including specifically-designed compliant flexures attached to specifically-shaped overlapping thin plates or shells. Applications for such surfaces include micro-scale cellular engineering and macro-scale biomedical applications, recreational uses, national security, and environmental protection.

US Patent:

20190323550, Oct 24, 2019

Filed:

Jun 11, 2019

Appl. No.:

16/437778

Inventors:

Ahmad Alqasimi - Tampa FL, US
Craig Lusk - Lutz FL, US

Assignee:

University of South Florida - Tampa FL

International Classification:

F16C 11/12
F16C 7/06

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.