Patent ID: 7708344

Claim:
A chair for supporting a patient during examination or treatment, comprising: a base; a seat frame supported by the base and including first and second sidewalls; a seatback support coupled to the seat frame and slidably movable relative thereto, the seatback support having a lower portion received between the first and second sidewalls; and a locking assembly associated with one of the first or second sidewalls and being configured to apply a clamping force between the seatback support and the seat frame; wherein the first sidewall has an outer surface and the locking assembly is associated with the first sidewall, the locking assembly including an engagement member coupled to the lower portion of the seatback support, a clamp plate facing the outer surface of the first sidewall, and a fastener having a head portion retained against the clamp plate and a shaft portion extending through the clamp plate and first sidewall, the shaft portion having threads for engaging the engagement member.