US 12,011,400 B2
Powered assistance add-on device for improved operation of a manual wheelchair
Christopher Paillet, Los Angeles, CA (US)
Filed by Christopher Paillet, Los Angeles, CA (US)
Filed on Aug. 8, 2022, as Appl. No. 17/818,351.
Prior Publication US 2024/0041674 A1, Feb. 8, 2024
Int. Cl. A61G 5/04 (2013.01)
CPC A61G 5/047 (2013.01) [A61G 5/045 (2013.01); A61G 2203/14 (2013.01)] 12 Claims
OG exemplary drawing
 
8. A device for powering a manual wheelchair with rear wheels, comprising:
a powered apparatus providing motorized assistance to a user operating the manual wheelchair, the powered apparatus comprising a motor and pair of powered drive wheels, with each powered drive wheel coupled with a respective rear wheel of the manual wheelchair;
the motor is in contact with a first shaft and first bevel gear that is disassociated from a second shaft and second bevel gear attached to a respective drive wheel; and
a piston assembly coupled to each of the powered drive wheels, wherein movement of the piston assembly to a disengaged position ceases motorized control of the wheelchair.