Patent ID: 6893468

Claim:
A coupler for releasably connecting a leg prosthetic device to a sleeve having a projecting locking stud with the sleeve configured to received the stump of a leg, said coupler comprising: a body having a concave stud receiver disposed within a central bore of said body and retained therein, said stud receiver confining a pivotable guillotine, said locking stud having a plurality of axially spaced circumferential grooves, said stud adapted to extend into said stud receiver, which guillotine being moveable into a locking position wherein the guillotine extends into and engages one of said grooves of said stud, and a released position, retracted from said groove of said stud, in response to axial movement, and an actuator comprising a handled shaft connected to produce the axial movement of said guillotine between the engaged position with the locking stud and the released position spaced from the locking stud wherein the body is comprised of a disk shaped upper plate and an oval shaped lower plate that are engaged with each other, and the said lower plate extends out beyond the edge of the upper plate; and wherein the upper plate is disposed at a slight incline greater than 90 degrees to the lower plate.