Trailer hitch with yoke release

Claim 1

A COLLAPSIBLE TRAILER HITCH HAVING A BASE, A FIRST LEG DISPOSED UPRIGHTLY WHEN IN A RAISED POSITION, A SECOND LEG INCLINED AT AN ANGLE RELATIVE TO SAID FIRST LEG WHEN IN A RAISED POSITION AND SUBSTANTIALLY PARALLEL TO THE BASE WHILE IN A LOWERED POSITION WHEN THE HITCH IS COLLAPSED, CUSHIONING MEANS IN SAID SECOND LEG, SAID LEGS BEING PIVOTALLY CONNECTED ADJACENT THEIR UPPER PORTIONS, A HEAD MEMBER INCLUDING SEPARABLE JAWS PIVOTALLY SUPPORTED BY SAID LEGS, THE LOWER END OF SAID SECOND LEG PIVOTALY FIXED TO SAID BASE, AND MEANS CONNECTED TO SAID FIRST LEG TO LONGITUDINALLY MOVE SAID FIRST LEG ALONG SAID BASE FOR RAISING AND LOWERING THE UPPER PORTION OF SAID LEGS TO RAISE AND LOWER SAID HEAD MEMBER BETWEEN A LOWERED POSITION FOR SUPPORTING A CONTAINER AND A RAISED POSITION FOR SUPPORTING A TRAILER, WHEREIN THE IMPROVEMENT COMPRISES: (A) MEANS FOR CONNECTING THE MEANS FOR LONGITUDINALLY MOVING THE FIRST LEG TO SAID LEG; AND (B) ADDITION MEANS OPERATIVE UPON ACTUATION BY A CONTAINER ON THE HEAD MEMBER TO DISCONNECT THE MEANS FOR LONGITUDINALLY MOVING THE FIRST LEG FROM SAID LEG WHEN THE COLLAPSE OF THE HITCH HAS PLACED SAID HEAD MEMBER IN THE LOWERED POSITION.