US 12,030,746 B2
Stair assistance device and system
Ricky Shum, Los Angles, CA (US)
Filed by Ricky Shum, Los Angles, CA (US)
Filed on Feb. 15, 2023, as Appl. No. 18/169,586.
Claims priority of provisional application 63/310,879, filed on Feb. 16, 2022.
Prior Publication US 2023/0257232 A1, Aug. 17, 2023
Int. Cl. B66B 9/08 (2006.01)
CPC B66B 9/0869 (2013.01) [B66B 9/0853 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A stair assistance device, comprising:
a platform;
the platform defining a first end opposite a second end;
the first end of the platform defining a first interface;
the first interface to engage a first lift;
the second end of the platform defining a second interface;
the second interface to engage a second lift; and
wherein the first lift and the second lift vertically displace the platform between a raised position and a lowered position;
wherein the first lift comprises a first motor, such that force is directly applied to the first end of the platform via the first interface;
wherein the first motor is internally disposed within the housing of the first lift and directly applies bidirectional force to the first end of the platform;
wherein the second lift comprises a second motor, such that force is directly applied to the second end of the platform via the second interface;
wherein the second motor is internally disposed within the housing of the second lift and directly applies bidirectional force to the second end of the platform;
wherein the first interface comprises a first vertical support to directly engage a first aperture at a top surface of the first lift and the second interface comprises a second vertical support to directly engage a second aperture at a top surface of the second lift;
wherein the first interface comprises a first protrusion to directly engage a first slot on an inside surface of the first lift and the second interface comprises a second protrusion to directly engage a second slot on an inside surface of the second lift;
wherein the platform comprises at least one actuator to directly move the platform from the raised position to the lowered position and from the lowered position to the raised position; and
wherein the at least one actuator is a footpad disposed on a top surface of the platform.