Gastight pressure vessel

Claim 1

A GASTIGHT PRESSURE VESSEL COMPRISING: (A) AN ENVELOPE ADAPTED TO CONTAIN GASEOUS CONTENTS WHOSE PRESSURE SIGNIFICANTLY EXCEEDS THAT OF ATMOSPHERIC PRESSURE, SAID ENVELOPE BEING FORMED WITH AN EXTERNALLY-LEADING CONDUIT THEREIN; AND (B) QUICKLY-OPERATOR-REMOVABLE AND QUICK-OPERATORREPLACEABLE SEALING MEANS INSERTEDLY POSITIONED IN SAID CONDUIT FOR RENDERING SAID VESSEL GASTIGHT; (C) SAID SEALING MEANS COMPRISING: (1) A PLUG HAVING A HEAD AND A SHANK, THE SHANK OF SAID PLUG BEING COMPLEMENTARILY SHAPED TO INSERTEDLY MATE WITH SAID CONDUIT IN A FIT FLUSH WITH THE INNER WALL OF SAID ENVELOPE AND SAID SHANK BEING FURTHER FORMED WITH A PERIPHERALLYDISPOSED RECESS THEREIN WHICH IS ADAPTED TO CONTAIN AN O-RING, SAID PLUG BEING ADAPTED TO BE INSERTED IN AND TO BE EXTRACTED FROM SAID CONDUIT BY A SUBSTANTIALLY SOLELY RECTILINEAR MOVEMENT OF SAID PLUG; (2) AN O-RING POSITIONED IN THE PERIPHERAL RECESS OF SAID SHANK FOR FORMING A GAS-PRECLUDING SEAL BETWEEN THE SHANK OF SAID PLUG AND THE WALLS, DEFINING SAID CONDUIT; (3) A CONTINUOUS BAND OF SET AND CURED BONDING-AND-SEALING ADHESIVE DISPOSED PERIPHERALLY AROUND THE PLUG SHANK, SAID BAND OF ADHESIVE BEING LOCATED INTERMEDIATE SAID O-RING AND THE INNER PORTION OF SAID ENVELOPE AND HAVING ITS RADIALLY-INNER BOUNDARY IN UNBROKEN CONTACT WITH THE PLUG SHANK AND ITS RADIALLY-OUTER BOUNDARY IN UNBROKEN CONTACT WITH THE WALLS OF SAID ENVELOPE CONDUIT, SAID BAND OF ADHESIVE SERVING BOTH TO BOND THE PLUG SHANK TO THE WALLS OF SAID CONDUIT AND TO FORM A GASTIGHT SEAL BETWEEN SAID PLUG AND THE WALLS OF SAID CONDUIT; (4) THE BONDING ACTION BY SAID BONDING-AND-SEALING ADHESIVE SERVING TO HOLD SAID PLUG IN INSERTED, SEALING POSITION IN THE CONDUIT OF SAID VESSEL AND YET ALLOWING SAID PLUG TO BE EASILY AND QUICKLY EXTRACTABLE BY OPERATOR-APPLIED EXTRACTING FORCE ON SAID PLUG AND THE SEALING ACTION BY SAID ADHESIVE PROTECTING SAID O-RING FROM ANY DETERIORATION BY GASEOUS CONTENTS OF SAID ENVELOPE AND GASEOUS CONTENTS OF SAID ENVELOPE FROM ANY CONTAMINATION BY SAID O-RING.