Panic exit device

Claim 1

A PANIC EXIT DEVICE FOR EMERGENCY DOORS TO BE MOUNTED ON AN INWARDLY FACING EXPOSED SURFACE OF A CONVENTIONAL FLUSH DOOR, COMPRISING A PANIC RELEASE BAR DISPOSED IN HORIZONTAL RELATION SPACED FROM SAID DOOR SURFACE EXPOSING THE SAME TO BE CONTACTED AND DEFLECTED TOWARD THE DOOR BY BODIES APPROACHING THE DOOR, MOUNTING MEANS FOR SAID BAR PIVOTALLY SUPPORTING THE SAME RELATIVE TO A COMMON PIVOT AXIS, INCLUDING A FIRST MOUNTING UNIT ADJACENT THE FREE EDGE AND A SECOND MOUNTING UNIT ADJACENT THE HINGED EDGE OF SAID DOOR, SAID FIRST MOUNTING UNIT COMPRISING A FRAME TO BE FIXED TO SAID DOOR SURFACE HAVING A BASE AND SIDES DEFINING A VERTICALLY ELONGATED CHANNEL OPENING OUTWARDLY OF SAID DOOR SURFACE, A VERTICALLY ELONGATED SLIDE MEMBER IN SAID CHANNEL, INTER-ENGAGING SURFACE FORMATIONS ON SAID FRAME AND SLIDE MEMBER FOR GUIDING THE LATTER ALONG A SELECTED VERTICAL RECTILINEAR AXIS BETWEEN A NORMAL LOCKING POSITION AND A DISPLACED UNLOCKING POSITION, A CENTER LOCKING BOLT PIVOTALLY MOUNTED IN SAID FRAME FOR ROTATION BETWEEN A PROJECTED LOCKING POSITION AND A RETRACTED UNLOCKING POSITION AND HAVING AN INTEGRAL ACTUATING MEMBER PROJECTING THEREFROM, SAID SLIDE MEMBER HAVING A SUBSTANTIALLY VSHAPED RECESS AT ITS LONGITUDINAL CENTER OPENING AWAY FROM SAID DOOR SURFACE DEFINING A PAIR OF MUTUALLY DIVERGING INCLINED SURFACES LOCATED SYMMETRICALLY RELATIVE TO A TRANSVERSE HORIZONTAL REFERENCE AXIS AT THE LONGITUDINAL CENTER OF SAID SLIDE MEMBER FOR RECEIVING SAID ACTUATING MEMBER OF SAID CENTER LOCKING BOLT THEREBETWEEN ACTUATING THE SAME TO RETRACT THE CENTER LOCKING BOLT FROM LOCKING TO UNLOCKING POSITION UPON MOVEMENT OF SAID SLIDE MEMBER FROM SAID NORMAL POSITION TO SAID DISPLACED POSITION, UPPER AND LOWER LOCKING DEVICES AT THE TOP AND BOTTOM EDGES OF SAID DOOR ALIGNED VERTICALLY WITH SAID FIRST MOUNTING UNIT AND HAVING AXIALLY ALIGNED VERTICALLY RECIPROCATIVE ELONGATED CONNECTING RODS FOR ADJUSTING SAID LOCKING DEVICES FROM LOCKING TO UNLOCKING CONDITION UPON UPWARD AXIAL MOVEMENT OF SAID RODS, SAID SLIDE MEMBER HAVING UPWARDLY AND DOWNWARDLY OPENING RECESSES AT ITS UPPER AND LOWER ENDS RESPECTIVELY SHAPED COMPLEMENTARY TO END PORTIONS OF SAID RODS AND RECEIVING THE SAME IN NESTED AND COUPLED RELATION THEREIN FOR TRANSMITTING VERTICAL AXIALLY RECIPROCATIVE MOVEMENT TO SAID CONNECTING RODS UPON MOVEMENT OF SAID SLIDE MEMBER BETWEEN SAID NORMAL AND DISPLACED POSITIONS AND RETRACT AND PROJECT SAID UPPER AND LOWER LACKING DEVICES BETWEEN LOCKING AND UNLOCKING CONDITION, AND MOTION-TRANSMITTING MEANS INTERCOUPLING SAID RELEASE BAR AND SID SLIDE MEMBER TO MOVE THE LATTER FROM SAID NORMAL POSITION TO SAID DISPLACED POSITION UPON DEFLECTION OF SAID RELEASE BAR THROUGH A SELECTED DISTANCE TOWARD SAID SURFACE.