Patent ID: 7921954

Claim:
A wheelchair comprising: a main frame; a seat assembly pivotally connected to said main frame, such that the height of said seat assembly may be increased or decreased; a seat assembly link pivotally connected at a first end to said seat assembly, wherein said seat assembly link is capable of moving from a substantially vertical arrangement to a substantially horizontal arrangement when said height of said seat assembly is decreased and wherein said seat assembly link is capable of moving from a substantially horizontal arrangement to a substantially vertical arrangement when said height of said seat assembly is increased; an extension frame pivotally connected at a second end of said seat assembly link, wherein said extension frame has a forward surface; an extension mechanism connected to said extension frame; a footrest assembly slidably connected at a first end to said seat assembly link and pivotally connected at a second end to said extension mechanism, and a gearing mechanism operably connected to said extension mechanism and said seat assembly link, wherein said gearing mechanism is capable of causing said extension mechanism to extend said footrest assembly away from said forward surface of said extension frame when said seat assembly link moves from a substantially vertical arrangement to a substantially horizontal arrangement and wherein said gearing mechanism is capable of causing said extension mechanism to retract said footrest assembly toward said forward surface of said extension frame when said seat assembly link moves from a substantially horizontal arrangement to a substantially vertical arrangement.