Patent ID: 8252066

Claim:
In combination with a choke adapter attached to a prosthetic socket, and a pyramidal link-plate coupled to prosthetic limb, a pyramid receptacle for connecting said pyramidal link-plate to said choke adapter, said pyramid receptacle comprising: a unitary annular member formed with hollow cylindrical neck section defined by external screw threads, and an internal cavity opening outward from an end of said neck section, and a plurality of internally threaded screw-bores entering said cylindrical neck section through said external screw threads and penetrating into said internal cavity; and a plurality of headless threaded set screws each journalled into a corresponding one of said plurality of internally threaded screw-bores, each of said plurality of threaded set screws having a length dimensioned to extend at one end into said internal cavity when recessed fully inside said corresponding threaded screw-bore.