Patent ID: 6936826

Claim:
A coupling between first and second chambers for preventing transfer of vibrations between the chambers and for sealing a passage between the first and second chambers, the coupling comprising: a first flange adapted to be attached to the first chamber and having a first internal conduit and an inner periphery; a second flange adapted to be attached to the second chamber and having a second internal conduit in alignment with said first internal conduit to thereby form the passage between the first and second chambers, said second flange having an outer periphery in opposed relationship to said inner periphery of said first flange to thereby define a space between said first and second flanges which is in flow communication with said first and second internal conduits; and a looped diaphragm having an outer peripheral edge region secured to said first flange and an inner peripheral edge region secured to said second flange to thereby couple said first and second flanges together and close said space between said first and second flanges in order to seal said first and second internal conduits from the ambient atmosphere.