US Patent 7566186 Drive coupler for a blender

A drive coupling assembly (10) for attaching two shafts includes a coupler body (11) and a locking clip (12). The body (11) has a splined opening (23) which is adapted to receive one shaft, and an aperture (24) which is adapted to receive a drive shaft (13) of a motor (14). A slot (25) is formed in coupler body (11) and the slot (25) communicates with the aperture (24). The clip (12) is positioned in the slot (25) and includes a spring tab (33) which can engage an undercut (40) in the shaft (13) to maintain the drive coupling assembly (10) on the shaft (13).