Global Research Innovation and Technology L3c

Benjamin H Gallup

Harrison O'Hanley

Daniel D Frey

Mario Bollini

Benjamin Judge

Gwyndaf M Jones

Amos G Winter, V

Danielle Hicks

Nydia Ruleman

Danielle M DeLatte

Xuefeng Chen

Natasha K Scolnik

A manually powered wheelchair includes a first lever associated with a first rear wheel and demountably coupled to a first drivetrain, the first lever having a first brake thereon. The wheelchair also includes a second lever associated with a second rear wheel and demountably coupled to a second drivetrain, the second lever having a second brake thereon. Each drivetrain includes a chainring, a chain, and a freewheel, and each drivetrain has a fixed gear ratio. The freewheel of each drivetrain is actuated by manual pivoting of the lever associated therewith. In use, the wheelchair achieves changes in mechanical advantage when a user shifts the user's hands up and down the first and second levers.

Wheelchair with lever drivetrain

Growing community of inventors

Norfolk, MA, United States of America

Benjamin H Gallup