Detent mechanism for securing a knob to a door latch

Claim 1

IN A LATCH MECHANISM HAVING A KNOB AND A SLEEVE NORMALLY RECEIVING SAID KNOB FOR TRANSFERRING TORQUE FROM SAID KNOB TO SAID LATCH MECHANISM, A SYSTEM FOR DETACHABLY SECURING SAID KNOB TO SAID SLEEVE COMPRISING: A SHANK MEMBER NORMALLY FIXED WITH RESPECT TO SAID KNOB AND ENGAGEABLE AXIALLY WITH SAID SLEEVE, SAID SHANK MEMBER HAVING A DISCONTINUITY IN THE WALL THEREOF AND A NOTCH AXIALLY ALIGNED WITH SAID DISCONTINUITY PROVIDING CAM SURFACES DIVERGING TO INCREASED WIDTH TO THE END OF SAID SHANK; DETENT MEANS SLIDABLY MOUNTED IN SAID SLEEVE FOR MOVEMENT TRANSVERSELY TO THE AXIS OF SAID SLEEVE AND HAVING A PROJECTING PORTION OF SUBSTANTIALLY UNIFORM THICKNESS TAPERING OUTWARDLY WITH RESPECT TO SAID SLEEVE TO REDUCED WIDTH IN A PLANE NORMAL TO THE AXIS OF SAID SLEEVE TO DEFINE EDGES ENGAGEABLE WITH SAID CAM SURFACES AND RECEIVABLE IN SAID DISCONTINUITY; AND BIASING MEANS URGING SAID DETENT TOWARD ENGAGEMENT WITH SAID DISCONTINUITY.