Genesis Advanced Technology Inc.

1158990 B.c. Ltd.

David Michael Bernhardt

James Brent Klassen

Javier Peter Fernandez-Han

Kellen Devries

Justin Michael Hebert

Sava Vujic

Michael Riley Gibney

Benjamin Andrew Blackford

Bradley Graham Humble

Sarah Marie Dueck

Alexander Sean Li

Steven Giles Dal Bello

An energy return device for a midsole of a shoe comprises a resilient foam or matrix structure, such as a domed disk, around a cavity. The resilient structure is arranged to collapse into the cavity under foot strike pressure. The structure may initially resist the pressure primarily by compression forces directed around the cavity. As the cavity collapses these forces may provide decreasing vertical spring rate as the structure bends or as the forces become less vertical, causing the structure to stay more compressed through the midstride and energy return to be delayed until the user has moved further forward in their stance. At full collapse the material of the structure may resist further downward force of the user by direct compression. A lateral expansion limiter may resist lateral expansion to increase vertical force supplied by the compression forces around the cavity and reduce interference with other components. A support structure may help guide the collapse and increase spring force.

Shoe midsole with delayed energy return and lateral shear stability

An exercise device is provided using, for example, handles, connected to cords that increase in tension as the handles are pulled. The tension may be provided using elasticity of the cords or by an actuator, for example powered by an electric motor. Pulleys allow adequate extension while remaining compact enough to fit in a standard height room and allowing accessibility to components. Upper and forward pulleys may be used. The upper pulleys may be displaced from potential obstacles, including the forward pulleys.

Low joint strain fitness system

Growing community of inventors

White Rock, Canada

David Michael Bernhardt