Patent ID: 7635164

Claim:
A wheelchair, comprising: a base, including powered features; a seat; a pivot joint connected to the base and to the seat, allowing at least two degrees of rotational freedom of movement of the seat with respect to the base; a first actuator connected to the seat and the base; a second actuator connected to the seat and the base; a controller connected to the first actuator and the second actuator, providing at least one programmed operation; a 3-axis accelerometer connected to the seat and the controller, for determining position of the seat in the at least two directions; a weight sensor connected to seat and the controller, for detecting loading conditions on the seat; a user interface panel connected to the controller, for operating the controller to perform the at least one programmed operation; wherein the controller, upon initiation of the at least one programmed operation via the user interface panel, automatedly, at intervals, operates the first actuator and the second actuator to vary positioning of the seat with respect to the base in response to loading conditions on the seat detected by the weight sensor.