Screw-capped containers and safety devices therefor

Claim 1

MEANS FOR PREVENTING ACCIDENTAL REMOVAL OF THE CAP FROM A SCREW-CAPPED CONTAINER WHEREIN THE CAP AND CONTAINER ARE ROTATABLE RELATIVE TO ONE ANOTHER ABOUT AN AXIS FROM A FULLY-OPENED CONDITION TO A FULLY-CLOSED CONDITION, COMPRISING A COLLAR ADAPTED FOR EMBRACEMENT OF THE CAP AND PROVIDING AN AXIALLY AND DOWNWARDLY EXTENDING PROJECTION MEMBER HAVING AT LEAST A PART THEREOF PROVIDING A GENERALLY RADIALLY-EXTENDING SURFACE, AND A COLLAR ADAPTED FOR EMBRACEMENT OF THE CONTAINER AND PROVIDING A COOPERATING RAMP MEMBER HAVING A GENERALLY RADIALLY-EXTENDING SURFACE ENGAGEABLE WITH THE RADIALLYEXTENDING PROJECTION SURFACE AFTER ROTATION OF A PREDETERMINED EXTENT FROM THE FULLY-CLOSED CONDITION TOWARD THE FULLY-OPENED CONDITION, SUCH ENGAGEMENT PREVENTING FURTHER ROTATION TOWARD THE FULLY-OPEN CONDITION, THE SAID PROJECTION MEMBER BEING CAPABLE OF AND REQUIRING MANUAL DEFLECTION OF THE SAID PART PROVIDING THE RADIALLY-EXTENDING SURFACE OUT OF ITS GENERAL PLANE AGAINST THE RESILIENCE OF THE MATERIAL THEREOF FOR DISENGAGEMENT OF THE SAID SURFACES TO PERMIT FURTHER RELATIVE ROTATION TOWARD THE FULLY-OPEN CONDITION, THE SAID COOPERATING MEMBER PROVIDING A RAMP SURFACE ADAPTED TO ENGAGE THE SAID PART OF THE OTHER MEMBER PROVIDING THE RADIALLY-DISPOSED SURFACE UPON ROTATION TOWARD THE FULLY-CLOSED CONDITION AND TO DEFLECT THE SAID PROJECTION PART OUT OF ITS GENERAL PLANE TO PERMIT ROTATION TO THE FULLY-CLOSED CONDITION.