Edwin K Iversen
Engineers in Salt Lake City, UT

6423099, Jul 23, 2002

May 22, 2000

09/576398

Edwin K. Iversen - Salt Lake City UT
James R. Linder - West Jordan UT
Steven R. Kunz - Salt Lake City UT
Arthur D. Dyck - Draper UT
Harold H. Sears - Salt Lake City UT

Motion Control, Inc. - Salt Lake City UT

A61F 254

623 64, 294106

A grip device for an artificial or prosthetic arm, including at least two opposable digits and a drive linkage powered by a drive motor. When the drive motor is powered it enables the two opposable digits to grip. The drive linkage includes a drive and transmission attached to the drive motor. A backlock is connected to the drive and transmission. Surrounding the backlock is a backlock housing which contains the drive, selected transmission elements, and a backlock. A stop element is also included for holding the backlock housing fixed with respect to ground. The stop element can be released to allow the backlock housing to move freely and to avoid power transmission without disrupting the operating structure of the transmission.

6424886, Jul 23, 2002

Oct 17, 2000

09/690241

Edwin K. Iversen - Salt Lake City UT
James R. Linder - Salt Lake City UT
Harold H. Sears - Salt Lake City UT

Motion Control, Inc. - Salt Lake City UT

G05B 1904

700254, 700213, 700250, 623 33, 623 34, 623 44, 623 58, 403 90, 403128, 403131, 403321

A movable prosthetic limb includes a drive linkage which is configured to move the prosthetic limb. An ultrasonic drive motor is coupled to the drive linkage and powers the drive linkage. The ultrasonic motor is non-backdrivable and has high torque at low speeds. Specifically, a prosthetic limb uses an ultrasonic motor to drive an elbow joint or prosthetic fingers. A movable prosthetic wrist includes a base configured to be coupled to an amputee. An ultrasonic drive motor is attached to the base, and a hand piece is attached to the ultrasonic drive motor to form a wrist joint. In this configuration, the ultrasonic drive motor directly moves the wrist joint. A harmonic drive can also be used for gear reduction in the wrist joint.

5005600, Apr 9, 1991

Jan 31, 1990

7/472701

Stephen C. Jacobsen - Salt Lake City UT
Edwin K. Iversen - Salt Lake City UT
David F. Knutti - Salt Lake City UT

Sarcos Group - Salt Lake City UT

G05D 1620

137 83

A servovalve apparatus for use in fluid systems which comprises a flexible fluid conduit and a conductive coil which surrounds at least a portion of the conduit adjacent its upstream end. An armature is secured to the flexible conduit so as to be adjacent the conductive coil. Two permanent magnets, preferably formed of a rare earth metal material, are provided adjacent the armature on opposite sides thereof, the magnets being positioned such that one magnet presents a north magnetic pole facing the armature and the other magnet presents a south magnetic pole facing the armature. A receiving plate is provided adjacent the downstream end of the flexible conduit, the receiving plate having one or more channels formed therein for receiving fluid from the conduit. Preferably, the channels in the receiving plate originate within and communicate with a concave socket in the receiving plate which has substantially the same radius of curvature as the path over which the downstream end of the flexible conduit moves during flexure.

5888213, Mar 30, 1999

Jun 6, 1997

8/870342

Harold H. Sears - Salt Lake City UT
Edwin K. Iversen - Salt Lake City UT
Kevin B. Hays - Salt Lake City UT
Arthur D. Dyck - Draper UT

Motion Control, Inc. - Salt Lake City UT

A61F 254, A61F 270

625 24

The present invention relates to improved controllers for externally powered prosthetic limb devices or similar extension devices such as orthotic devices or a sensor probe device. The improved controller operates a highly-efficient, compact, reliable and low-maintenance tactile force feedback system for translating a sensed pressure force from a prosthesis contacting an object or surface into a tactile sensory feedback pressure force to the user. The tactile force feedback system comprises at least one contact-responsive transducer which translates a sensed contact pressure from a portion of an extension device which contacts an object or surface into a corresponding electrical signal. The electrical signal is received by a microprocessor and processed into a proportional output voltage for producing a proportional torque from a motor. The motor is connected to a backdrivable planetary gearbox having a rotatable shaft connected to one end of a lever such that the gearbox output causes the lever to move in an arc segment.

5133379, Jul 28, 1992

Jun 5, 1991

7/710539

Stephen C. Jacobsen - Salt Lake City UT
Edwin K. Iversen - Salt Lake City UT
David F. Knutti - Salt Lake City UT
Clark C. Davis - Salt Lake City UT

University of Utah Research Foundation - Salt Lake City UT

G05D 1620

137 83

A servovalve apparatus for use in fluid systems which comprises an elongate flexible valve element having a fixed end and a free, moveable end, and a conductive coil which surrounds at least a portion of the valve element adjacent its fixed end. An armature is secured to the valve element so as to be adjacent the conductive coil. Two permanent magnets, are provided adjacent the armature on opposite sides thereof, the magnets being positioned such that one magnet presents a north magnetic pole facing the armature and the other magnet presents a south magnetic pole facing the armature. A recieving plate is provided adjacent the free end of the valve element, the receiving plate having one or more channels formed therein for receiving fluid, and a bore for delivering fluid. Preferably, the channels and bore in the receiving plate originate within and communicate with a concave socket in the receiving plate which has substantially the same radius of curvature as the path over which the free end of the valve element moves during flexure. A deflection cup is disposed on the free end of the valve element to move adjacent the surface of the concave socket and selectively redirect fluid from the bore to one of the channels.

7914587, Mar 29, 2011

Dec 5, 2006

11/567155

Shawn L. Archer - Salt Lake City UT, US
Arthur D. Dyck - Draper UT, US
Reed H. Grant - Salt Lake City UT, US
Edwin K. Iversen - Holladay UT, US
Joseph A. Jacobs - Salt Lake City UT, US
Steven R. Kunz - Salt Lake City UT, US
James R. Linder - West Jordan UT, US
Harold H. Sears - Salt Lake City UT, US

Motion Control - Salt Lake City UT

A61F 2/68, A61F 2/58

623 62, 623 61

A multi-axis wrist device is provided for use with a prosthetic limb. The wrist device includes a base plate that is configured for attachment to a prosthetic limb. A cross piece, having first and second axes, can be coupled to the base plate. A prosthetic attachment can be coupled to the cross piece. The cross piece can enable a user to simultaneously flex the prosthetic attachment in two different axes. A first and second torsional spring can be coupled to the first and second axes, respectively, to enable the prosthetic attachment to be biased toward a center point.

7942935, May 17, 2011

Mar 29, 2006

11/394331

Edwin Kay Iversen - Salt Lake City UT, US
Harold H. Sears - Salt Lake City UT, US
Arthur D. Dyck - Draper UT, US
Steven R. Kunz - Salt Lake City UT, US
Joseph Anthony Jacobs - Salt Lake City UT, US
James R. Linder - West Jordan UT, US
Peter K. Strazdins - Park City UT, US

Motion Control - Salt Lake City UT

A61F 2/70

623 25

A device and system is provided for a prosthetic device having an articulating joint for a leg amputee. The device includes a joint housing forming a chamber, and the chamber has a first opening. A rotary hub can be disposed within the joint housing and configured to act as the articulating joint. One or more vanes can extend outwardly from the rotary hub, and the vane is configured to actuate fluid flow through the first opening.

2009031, Dec 24, 2009

May 21, 2009

12/470365

Edwin Kay Iversen - Salt Lake City UT, US
Harold H. Sears - Salt Lake City UT, US
Arthur D. Dyck - Draper UT, US
Steven R. Kunz - Salt Lake City UT, US
Joseph Anthony Jacobs - Salt Lake City UT, US
James R. Linder - West Jordan UT, US
Melinda Linder - West Jordan UT, US
Peter K. Strazdins - Park City UT, US

MOTION CONTROL - Salt Lake City UT

A61F 2/66

623 49, 623 55

Compositions are provided for a prosthetic ankle comprising: a joint housing having a bottom surface, a clevis coupled to the joint housing such that the clevis can rotate about the joint housing, a prosthetic coupling structure that couples the clevis to an amputee, and an articulating joint contained in the joint housing. Additionally, a portion of the bottom surface of the joint housing can be curved allowing a substrate a preset amount of flexion when coupled thereto and flexed in a concave position.

7041141, May 9, 2006

Feb 21, 2002

10/080962

Edwin K. Iversen - Salt Lake City UT, US
James R. Linder - West Jordan UT, US
Steven R. Kunz - Salt Lake City UT, US
Arthur D. Dyck - Draper UT, US
Harold H. Sears - Salt Lake City UT, US

Motion Control, Inc. - Salt Lake City UT

A61F 2/54, A61F 2/68

623 64

A grip device for an artificial or prosthetic arm, including at least two opposable digits and a drive linkage powered by a drive motor. When the drive motor is powered it enables the two opposable digits to grip. The drive linkage includes a drive and transmission attached to the drive motor. A backlock is connected to the drive and transmission. Surrounding the backlock is a backlock housing which contains the drive, selected transmission elements, and a backlock. A stop element is also included for holding the backlock housing fixed with respect to ground. The stop element can be released to allow the backlock housing to move freely and to avoid power transmission without disrupting the operating structure of the transmission.

7144430, Dec 5, 2006

Jul 11, 2003

10/618525

Shawn L. Archer - Salt Lake City UT, US
Arthur D. Dyck - Draper UT, US
Reed H. Grant - Salt Lake City UT, US
Edwin K. Iversen - Salt Lake City UT, US
Steve R. Kunz - Salt Lake City UT, US
James R. Linder - West Jordan UT, US
Harold H. Sears - Salt Lake City UT, US

Motion Control, Inc. - Salt Lake City UT

A61F 2/58, A61F 2/70

623 61, 623 62

A wrist device is provided for use with a prosthetic limb. The wrist device includes a base plate that is configured for attachment to a prosthetic limb and a sliding lock plate that is slidably engaged with the base plate. Both the base plate and the sliding lock plate have openings. Also included in the invention is a semi-cylindrical rotator that is configured for attachment to a prosthetic hand. The semi-cylindrical rotator has slots configured to receive the sliding lock plate and is coupled to the base plate in a manner that allows the sliding lock plate to lock into the slots.