Patent ID: 8104798

Claim:
A connecting adapter for sealingly receiving and connecting an outlet end of a gas cartridge and an inlet end of a gas induction device of a gas fastening apparatus, said adapter comprising: a sleeve of rigid material; a seal of a flexible and compressible material for sealing a connection between the outlet end of the gas cartridge and the inlet end of the gas induction device, said seal being disposed in the sleeve; and an adapter body defining a chamber for housing the sleeve and the seal; wherein the sleeve is moveable within the chamber in an axial direction of the chamber in which the outlet end of the gas cartridge and the inlet end of the gas induction device are to be inserted into the adapter; wherein the seal comprises an annular transverse portion adapted to be interposed between and compressed, in the axial direction, by the outlet end of the gas cartridge and the inlet end of the gas induction device; wherein said seal further comprises annular sealing lips each for sealingly contacting one of the inlet end and outlet end, respectively; and said annular transverse portion is positioned, in the axial direction, between said annular sealing lips and projects radially inwardly farther than one of said annular sealing lips.