Connecting system for fiber optic termination

An optical transmission connecting device for optical signal or optical power passage through fiber an optical fiber cable typically having one or a plurality of optical fibers with a glass or plastic core, a glass or plastic cladding over said core, a buffer coating and/or tubing over said cladding, strength member and outer protective jacket over said fiber, buffer coat(s) tubing, and strength members comprising;

• an optical fiber terminus consisting of a hollow crimpable or adhesive-accepting ferrule having an entrance bore diameter larger than said optical fiber cable jacket, a reduced bore diameter portion larger than said optical fiber buffer coat and a further reduced exit bore tip having an inside diameter approximately equal to said optical fiber consisting of core and cladding whereby said optical fiber is passed therethrough;
• a coupling sleeve having a bayonet style coupling mechanism which serves to attach said optical fiber terminus to an adapter having an opening at each end with a tapered entry inlet accepting said fiber-containing ferrule and having a precision alignment sleeve which maintains a close-fitting relationship to said optical fiber terminus exit bore tip, bayonet pins of said adapter guided by matching ramping grooves in said coupling mechanism coupling sleeve;
• means for providing a compressive spring force between said adapter and the optical fiber terminus providing significant stability, said bayonet style coupling mechanism providing camming action serving to overcome firm resilient resistance of said compressive spring force by means of said bayonet pins during coupling operation;
• means for providing a compressive coil spring force between said coupling mechanism and said optical fiber containing ferrule independent of said coupling mechanism-to-adaptor spring force;
• means of terminating said optical fiber cable portions through which tensile loading forces are applied independent of said optical fiber terminus ferrule in which said signal or power transmitting optical fiber is fixed, said tensile forces being transferred to said adapter through said bayonet pins engaging with said bayonet coupling sleeve
• means of limiting rearward travel of said
• optical fiber ferrule which could result in optical fiber axial movement during operation of said coupling mechanism.