Dual release safety joint

Claim 1

A DUAL RELEASE SAFETY JOINT, COMPRISING, A TUBULAR BOX MEMBER AND A PIN MEMBER TELESCOPINGLY RECEIVABLE IN THE BOX MEMBER, COMPLEMENTARY THREADS DISPOSED ON THE INNER END PORTIONS OF THE PIN AND BOX MEMBER FOR SECURING THE MEMBERS WHEN IN FULLY ENGAGED RELATION AND RELEASABLE BY ROTATION OF THE BOX MEMBER IN ONE DIRECTION RELATIVE TO THE PIN MEMBER, SAID PIN MEMBER HAVING AN ANNULARLY ENLARGED SECTION, SAID ENLARGED SECTION COMMENCING AT A POINT AXIALLY SPACED FROM SAID THREADED END PORTION AND EXTENDING AXIALLY TO A SECOND TERMINAL POINT ON SAID PIN MEMBER, A JAY-TYPE SLOT ELEMENT EXTENDING LONGITUDINALLY ENTIRELY THROUGH SAID ENLARGEMENT AN INING A GENERALLY Z-SHAPED CONFIGURATION COMPRISING AN INLET LEG, AN OUTLET LEG OFFSET CIRCUMFERENTIALLY FROM THE INLET LEG AND A LATERAL LEG INTERCONNECTING SAID INLET AND OUTLET LEGS, SAID INLET AND OUTLET LEGS EXTENDING LONGITUDINALLY OF SAID PIN MEMBER, SAID LATERAL LEG BEING DISPOSED OBLIQUELY TO SAID INLET LEG, AND BEING SPIRALED DOWNWARDLY FROM THE INLET LEG TO THE OUTLET LEG IN A DIRECTION OPPOSITE TO SAID ONE DIRECTION, AND FORMING A DOWNWARDLY FACING SHOULDER ACROSS SAID INLET LEG AND AN UPWARDLY FACING SHOULDER ACROSS SAID OUTLET LEG, A JAY-PIN MEMBER ON SAID BOX MEMBER IN POSITION TO ENGAGE IN SAID JAYTYPE SLOT ELEMENT, SAID JAY-PIN MEMBER BEING SPACED A GREATER DISTANCE FROM SAID BOX MEMBER THREADS THAN THE TERMINAL END OF SAID ANNULARLY ENLARGED SECTION IS SPACED FROM SAID PIN MEMBER THREADS PLUS THE LENGTH OF SAID PIN MEMBER THREADS, SAID INLET SHOULDER HAVING SUFFICIENT AXIAL EXTENT TO OVERLAP OPPOSITE SIDES OF SAID JAY-PIN MEMBER TO PREVENT ROTATION OF SAID BOX MEMBER RELATIVE TO SAID PIN MEMBER WHEN SAID JAY-PIN AND SHOULDER ARE IN ENGAGEMENT, SAID INLET LEG HAVING A GUIDE OPENING WITH CAM SHOULDERS ON OPPOSITE SIDES THEREOF FOR GUIDING SAID JAYPIN MEMBER INTO SAID INLET LEG, WHEREBY SAID PIN MEMBER MAY BE ROTATED RELATIVE TO SAID BOX MEMBER FOR UNSCREWING SAID THREADS AND AXIAL MOVEMENT OF SAID PIN OUT OF SAID BOX MEMBER CAUSES SAID JAY-PIN TO ENGAGE SAID INLET SHOULDER AND SAID ENGAGEMENT PERMITS ROTATIONAL AND LONGITUDINAL MANIPULATION OF THE MMEBERS BEFORE RELEASE AND PROVIDES AN INDICATION OF THE POSITION OF SAID PINS IN SAID Z-SHAPED SLOT.