Fiberglass sucker rod construction

A sucker rod, which comprises:

• a connector including a receptacle having an axially outer closed end and an axially inner open end, said receptacle including a plurality of integrally formed axially spaced apart frusto-conical internal surfaces, each of said frusto-conical surfaces having substantially same angle of taper with respect to the axis of said connector, said connector including an integrally formed threaded coupling member;
• a fiberglass rod including an end having a uniformly cylindrical uninterrupted outer surface contained within said receptacle and extending through said open end of said receptacle;
• a collet connected to said connector adjacent said open end of said receptacle, said collet having a passage therethrough coaxial with said receptacle and closely fitting with said outer surface of said rod, said collet including a tubular portion extending axially along said outer surface of said rod, said tubular portion having an outside diameter smaller than the outside diameter of said connector;
• and a quantity of shear and compression resistant adhesive material bonded to said surface of said rod and filling the volume about said surface of said rod and bounded by said receptacle and said collet.