Pressurized hose end

Claim 1

A HOSE COUPLING FOR ATTACHMENT TO THE END OF A HOSE COMPRISING A SLEEVE ADAPTED TO FIT OVER THE END OF THE HOSE, A TUBULAR INSERT SECURED WITHIN SAID SLEEVE AND ADAPTED TO FIT WITHIN THE HOSE, SAID SLEEVE AND SAID INSERT DEFINING AN ANNULAR CHAMBER THEREBETWEEN, AN ANNULAR PISTON WITHIN SAID ANNULAR CHAMBER AND SPACED FROM THE END OF THE HOSE, AN ANNULAR GROOVE ON THE OUTER PERIPHERY OF SAID PISTON, A CLAMPING RING WITHIN SAID ANNULAR CHAMBER, SAID CLAMPING RING HAVING A PLURALITY OF RESILIENT FINGERS EXTENDING AXIALLY OVER THE OUTER PERIPHERY OF THE HOSE, SAID SLEEVE HAVING A CONICAL CAM PORTION ENGAGEABLE BY THE ENDS OF SAID RESILIENT FINGERS, MEANS TO ADMIT FLUID PRESSURE FROM AN EXTERIOR SOURCE INTO SAID ANNULAR CHAMBER APPLY AN AXIAL FORCE TO SAID ANNULAR PISTON TO SHIFT SAID PISTON AND SAID CLAMPING RING TOWARD SAID CAM PORTION WHEREBY SAID CAM PORTION FORCES SAID RESILIENT FINGERS RADIALLY INWARD TO GRIP THE HOSE, AND SPRING LOADED DETENT MEANS ADAPTED TO SNAP INTO SAID PISTON GROOVE TO RETAIN SAID PISTON AND SAID CLAMPING RING IN THE CLAMPED POSITION, SAID DETENT MEANS BEING RELEASABLE OUT OF SAID GROOVE TO ALLOW RETRACTION OF SAID PISTON AND SAID CLAMPING RING TO RELEASE THE HOSE.