Explosive nut retainer

Claim 1

AN EXPLOSIVELY-SEPARABLE FASTENER ASSEMBLY HAVING AN AXIS AND ADAPTED TO JOIN A FIRST BODY TO A SECOND BODY, SAID ASSEMBLY COMPRISING: A FIRST AND A SECOND FASTENER ELEMENT, SAID FASTENER ELEMENTS BEING JOINABLE TO HOLD THE BODIES TOGETHER, AND SAID SECOND FASTENER ELEMENT BEING RELEASABLE TO SEPARATE FROM THE FIRST FASTENER ELEMENT; AN EXPLOSIVE CHARGE; A HOLDING ELEMENT COMPRISING MEANS TO HOLD THE SECOND FASTENER ELEMENT TO THE FIRST FASTENER ELEMENT, AND UPON DETONATION OF THE CHARGE, TO MOVE A DISTANCE AXIALLY AWAY FROM THE SECOND FASTENER ELEMENT IN ORDER TO RELEASE THE SAME; A PERIPHERAL SHOULDER ON THE HOLDING ELEMENT MAKING A FIRST ANGLE RELATIVE TO THE AXIS; AND A HOUSING; MEANS CARRIED BY SAID HOUSING FOR ATTACHING IT TO ONE OF SAID BODIES, SAID HOUSING HAVING AN INTERNAL CAVITY IN WHICH THE SECOND FASTENER ELEMENT AND HOLDING ELEMENT ARE DISPOSED, THE CAVITY BEING BOUNDED AT LEAST IN PART BY AN INTERNAL TAPERED WALL ON THE HOUSING WHICH TAPERED WALL MAKES A SECOND ANGLE WITH THE AXIS, SAID SECOND ANGLE BEING SMALLER THAN THE FIRST ANGLE, SAID TAPERED WALL BEING AXIALLY SPACED FROM THE PERIPHERAL SHOULDER WHEN THE ASSEMBLY IS ASSEMBLED, BY A DISTANCE SUFFICIENT TO PERMIT THE HOLDING ELEMENT TO CLEAR THE SECOND FASTENER ELEMENT, THE RADII OF THE PERIPHERAL SHOULDER AND TAPERED WALL OVERLAPPING WHEREBY THEY WILL MAKE CONTACT WITH EACH OTHER WHEN THE EXPLOSIVE CHARGE IS DETONATED, THEREBY FREEING THE HOLDING ELEMENT FROM THE SECOND FASTENER ELEMENT AND MOVING IT TOWARD THE TAPERED WALL, THE AREA OF CONTACT BETWEEN THE PERIPHERAL SHOULDER AND THE TAPERED WALL PROGRESSIVELY INCREASING AS THE PERIPHERAL SHOULDER MOVES INTO THE TAPERED WALL, WHEREBY THE HOUSING AT THE OVERLAPPING PORTION OF THE TAPERED WALL IS RADIALLY DEFORMED THUS TO DISSIPATE IN SAID DEFORMATION AT LEAST A PART OF THE KINETIC ENERGY OF THE HOLDING ELEMENT AFTER BEING FIRED.