US 12,239,587 B2
Wheelchair propulsion system
Brent C. Nimeck, Victoria (CA); and Jeffrey R. Scott, Victoria (CA)
Assigned to GAME CHANGER TECHNOLOGIES INC., Victoria (CA)
Filed by GAME CHANGER TECHNOLOGIES INC., Victoria (CA)
Filed on Jan. 18, 2024, as Appl. No. 18/415,832.
Application 18/415,832 is a continuation of application No. 18/304,613, filed on Apr. 21, 2023, granted, now 11,911,323.
Application 18/304,613 is a continuation of application No. PCT/CA2022/051027, filed on Jun. 28, 2022.
Claims priority of provisional application 63/216,126, filed on Jun. 29, 2021.
Prior Publication US 2024/0148574 A1, May 9, 2024
Int. Cl. A61G 5/04 (2013.01)
CPC A61G 5/04 (2013.01) 18 Claims
OG exemplary drawing
 
1. A hub, comprising:
a central bore defined within the hub, the central bore extending from a first end of the hub to an opposing second end thereof along a longitudinal axis of the hub;
a torque receiving member inside the central bore; and
a drive axle removably insertable into the central bore, wherein the drive axle comprises a torque transferring member on a surface of the drive axle, the torque transferring member being shaped to engage with the torque receiving member,
wherein the hub is removably mountable within a centerbore of a drive wheel, and
wherein the torque receiving member comprises a torque bushing fitted inside the central bore.