Explosive actuated valve

Claim 1

VALVE APPARATUS COMPRISING: A VALVE BODY PORTION HAVING A BORE FORMED THEREIN; CLOSURE MEANS FOR EACH END OF SAID BORE; SEPARATE INLET AND OUTLET DUCTS IN SAID BODY, EACH COMMUNICATING AT SEPARATE LONGITUDINALLY SPACEDAPART LOCATIONS, WITH SAID BORE, THERE BEING AN INTERMEDIATE, UNINTERRUPTED SECTION OF SAID BORE EXTENDING BETWEEN SUCH SPACED-APART LOCATIONS; A VALVE ELEMENT LOCATED COAXIALLY IN SAID BORE, SAID VALVE ELEMENT EXTENDING CLOSINGLY ACROSS SAID BORE AND HAVING A PERIPHERAL SURFACE PORTION IN SLIDABLE SEALING ENGAGEMENT WITH THE INSIDE SURFACE OF THE WALL OF SAID BORE, SAID VALVE BODY PORTION AND SAID SURFACE PORTION BEING COMPOSED OF A MATERIAL HAVING A HARDNESS AND RIGIDITY AT LEAST APPROXIMATING THAT OF A METAL OF THE CLASS CONSISTING OF ALUMINUM AND STEEL, SAID PERIPHERAL SURFACE HAVING THE FORM OF A LONGITUDINALLY CONVEXLY CURVED ZONE AND SAID ZONE HAVING A MAXIMUM OUTSIDE DIAMETER GREATER THAN THE INSIDE DIAMETER OF SAID BORE, WHEREBY SAID PERIPHERAL SURFACE MAKES AN INTERFERENCE PRESS FIT WITHIN SAID BORE, SAID VALVE ELEMENT BEING SLIDABLE AXIALLY WITHIN SAID BORE BETWEEN AN AXIAL POSITION IN A SECTION OF SAID BORE OUTSIDE OF SAID INTERMEDIATE SECTION AT WHICH SAID DUCTS ARE IN COMMUNICATION WITH EACH OTHER THROUGH SAID INTERMEDIATE SECTION, AND AN AXIAL POSITION WITHIN SAID INTERMEDIATE SECTION AT WHICH SAID DUCTS ARE THEREBY CUT OFF FROM COMMUNICATION WITH EACH OTHER, WHILE MAINTAINING SAID FIT IN SAID SECTION OF SAID BORE; AND FORCE MEANS ACTUATABLE FOR MOVING SAID VALVE ELEMENT AXIALLY IN SAID BORE BETWEEN SAID POSITIONS.