Safety pressure cap with safety release mechanism

Claim 1

A SAFETY PRESSURE CAP COMPRISING A CAP BODY, A DOME-SHAPED, HOLLOW SUPPORT CENTRALLY FIXEDLY DEPENDENT FROM SAID BODY AND TERMINATING AT ITS DISTAL END IN AN OUTTURNED FLANGE, SAID SUPPORT BEING FORMED WITH A SLOT OPENING THROUGH SAID FLANGE, A LEVER HAVING A TOE RESTING ON SAID FLANGE AND SPANNING THE SLOT THERETHROUGH, SAID LEVER FURTHER HAVING A SHANK EXTENDING THROUGH THE SLOT IN SAID SUPPORT TO THE HOLLOW INTERIOR OF SAID SUPPORT AND CURVING TOWARD SAID CAP BODY AND TOWARD THE WALL OF SAID HOLLOW SUPPORT, AN ELEMENT RECIPROCABLY EXTERNALLY SLEEVED ON SAID SUPPORT FOR RECIPROCATION TOWARD AND AWAY FROM SAID CAP BODY, SAID ELEMENT HAVING A PORTION DISPOSED BETWEEN SAID CAP BODY AND SAID LEVER TOE AND ENGAGEABLE WITH SAID LEVER TOE TO LIMIT MOVEMENT OF SAID ELEMENT AWAY FROM SAID CAP BODY, VALVE MEANS CARRIED BY SAID ELEMENT, SPRING MEANS CONFINED BETWEEN SAID ELEMENT AND SAID CAP BODY AND RESISTING MOVEMENT OF SAID ELEMENT TOWARD SAID CAP BODY, ACTUATOR MEANS SUPPORTED FROM SAID CAP BODY FOR OSCILLATION ABOUT AN AXIS GENERALLY PERPENDICULAR TO SAID CAP BODY, AND A CAM MEMBER OSCILLABLY MOUNTED WITHIN SAID HOLLOW SUPPORT BETWEEN SAID LEVER AND SAID CAP BODY AND ENGAGEABLE WITH THE SHANK OF SAID LEVER TO SHIFT SAID LEVER SHANK AWAY FROM SAID CAP BODY THEREBY LIFTING SAID ELEMENT TOWARD SAID CAP BODY AGAINST THE TENDENCY OF SAID SPRING MEANS, SAID ACTUATOR MEANS BEING OPERATIVELY CONNECTED TO SAID CAM MEANS TO ACTUATE THE SAME.